Record blocked shared-Frame verification and portal limits

PC host: review fixes (idle watchdog, controller close race, malformed input, loader path)
- The 10 s watchdog no longer ends idle sessions. PipeWire and WGC deliver frames only on damage; fail only when a frame entered the encoder and never came out, or the pipeline never produced its initial frame. - Controller.state/call/update are inert after close(), so a /status poll racing Stop cannot dereference the freed native controller. - Malformed viewer fields drop the event instead of ending the session. - PATH/LD_LIBRARY_PATH prepends add no empty (current directory) entry. - portal.c: document fd ownership. pipewiresrc dups the fd it is given (gstpipewirecore.c, F_DUPFD_CLOEXEC), so the portal closing its own fd is correct; clear it after close. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-06 07:00:37 +02:00 · 2026-09-29 11:13:08 +10:00 · 2026-09-29 10:44:12 +10:00 · 2026-09-29 10:38:37 +10:00 · 2026-09-29 10:33:35 +10:00 · 2026-09-29 10:27:40 +10:00
125 changed files with 31393 additions and 447 deletions
@@ -0,0 +1,53 @@
+name: PC host libraries
+on:
+  pull_request:
+    paths: ["desktop/**", "ui/**", "tests/**", "mac/frame-mac-view/**", "scripts/macview-bench.py", ".github/workflows/pc-host.yml"]
+  workflow_dispatch:
+jobs:
+  linux:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, ubuntu-24.04-arm]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Native libraries
+        run: |
+          sudo apt-get update -qq
+          sudo apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libglib2.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-pipewire libpipewire-0.3-modules libspa-0.2-modules
+          python3 desktop/build.py
+      - name: Tests (real x264, fake capture consent/input)
+        env:
+          FRAME_PC_REQUIRE_NATIVE: "1"
+        run: python3 -m unittest discover -s tests -p 'test_pc*.py' -v
+      - uses: actions/upload-artifact@v4
+        with:
+          name: pc-host-${{ matrix.os }}
+          path: desktop/bundle
+  windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: msys2/setup-msys2@v2
+        with:
+          msystem: UCRT64
+          update: true
+          install: >-
+            mingw-w64-ucrt-x86_64-gcc
+            mingw-w64-ucrt-x86_64-pkgconf
+            mingw-w64-ucrt-x86_64-python
+            mingw-w64-ucrt-x86_64-gstreamer
+            mingw-w64-ucrt-x86_64-gst-plugins-base
+            mingw-w64-ucrt-x86_64-gst-plugins-good
+            mingw-w64-ucrt-x86_64-gst-plugins-bad
+            mingw-w64-ucrt-x86_64-gst-plugins-ugly
+      - name: Native build and tests (x264; WGC and MF need a desktop/GPU)
+        shell: msys2 {0}
+        run: |
+          python desktop/build.py
+          FRAME_PC_REQUIRE_NATIVE=1 python -m unittest discover -s tests -p 'test_pc*.py' -v
+      - uses: actions/upload-artifact@v4
+        with:
+          name: pc-host-windows
+          path: desktop/bundle
@@ -7,7 +7,7 @@ on:
  push:
    tags: ["v*"]
  pull_request:
-    paths: ["app/**", "ui/**", "scripts/**", "frame/**", "apk-catalog/**", ".github/workflows/release.yml"]
+    paths: ["app/**", "ui/**", "desktop/**", "mac/**", "scripts/**", "frame/**", "apk-catalog/**", ".github/workflows/release.yml"]
  workflow_dispatch:

 permissions:
@@ -28,18 +28,62 @@ jobs:
          - os: ubuntu-latest
            script: dist:linux
            files: app/dist/*.AppImage app/dist/*.deb
+          - os: ubuntu-24.04-arm
+            script: dist:linux:arm64
+            files: app/dist/*.AppImage app/dist/*.deb
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: "24"
+      - name: Linux streaming libraries
+        if: runner.os == 'Linux'
+        shell: bash
+        run: |
+          sudo apt-get update -qq
+          sudo apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libglib2.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-pipewire libpipewire-0.3-modules libspa-0.2-modules
+          arch=x64; if [ "$(uname -m)" = aarch64 ]; then arch=arm64; fi
+          python3 desktop/build.py --out "app/build/desktop/linux-$arch"
+      - uses: msys2/setup-msys2@v2
+        if: runner.os == 'Windows'
+        with:
+          msystem: UCRT64
+          update: true
+          install: >-
+            mingw-w64-ucrt-x86_64-gcc
+            mingw-w64-ucrt-x86_64-pkgconf
+            mingw-w64-ucrt-x86_64-python
+            mingw-w64-ucrt-x86_64-gstreamer
+            mingw-w64-ucrt-x86_64-gst-plugins-base
+            mingw-w64-ucrt-x86_64-gst-plugins-good
+            mingw-w64-ucrt-x86_64-gst-plugins-bad
+            mingw-w64-ucrt-x86_64-gst-plugins-ugly
+      - name: Windows streaming libraries
+        if: runner.os == 'Windows'
+        shell: msys2 {0}
+        run: python desktop/build.py --out app/build/desktop/win-x64
      - name: Build
        working-directory: app
        shell: bash
        run: npm ci && npm run ${{ matrix.script }}
        env:
          CSC_IDENTITY_AUTO_DISCOVERY: "false"
+      - name: Test the bundled Python with the native PC libraries
+        if: runner.os != 'macOS'
+        shell: bash
+        run: |
+          if [ "$RUNNER_OS" = Windows ]; then
+            platform=win; arch=x64
+            python="$PWD/app/build/deps/win-x64/python/python.exe"
+            native="$(cygpath -w "$PWD/app/build/desktop/win-x64")"
+          else
+            platform=linux; arch=x64
+            if [ "$(uname -m)" = aarch64 ]; then arch=arm64; fi
+            python="$PWD/app/build/deps/linux-$arch/python/bin/python3"
+            native="$PWD/app/build/desktop/linux-$arch"
+          fi
+          FRAME_PC_NATIVE="$native" FRAME_PC_REQUIRE_NATIVE=1 "$python" -m unittest discover -s tests -p 'test_pc*.py' -v
      - name: Upload to the release
        if: startsWith(github.ref, 'refs/tags/')
        shell: bash
@@ -6,3 +6,16 @@ compat-db/.env.lakebed.server
 compat-db/.lakebed/
 tests/smoke/results/
 mac/bin/
+
+# Shared desktop streaming controller build products
+desktop/controller.dll
+desktop/controller.dylib
+desktop/controller.so
+desktop/*.obj
+desktop/*.lib
+desktop/*.exp
+desktop/bundle/
+app/build/desktop/
+
+# Downloaded at build time (frame/kdeconnect/fetch.py, app/build/fetch-deps.js)
+frame/kdeconnect/packages/
@@ -72,6 +72,9 @@ Drag files onto the window to send them. Drop a game's .zip, folder or .exe to a
 **📸 Screenshots**<br>
 Browse the shots you take in the headset and save them to your Pictures folder.

+**⌨️ Keyboard and trackpad**<br>
+Type and point in the Frame's apps from your computer or phone, through KDE Connect, which Frame Control brings along and sets up on the Frame. Nothing else to install, anywhere.
+
 </td>
 </tr>
 <tr>
@@ -207,6 +210,7 @@ Frame's software fits together, all checked against a real headset and labelled
 | [Sideloading Linux and Windows games](docs/sideloading.md) | A .zip, folder or .exe as a Steam Devkit Game, runtime detection |
 | [Install links for websites](docs/web-install.md) | `frame-control://install` links and manifests, the rules, a button to paste |
 | [Steam games](docs/steam-games.md) · [VR video](docs/vr-video.md) · [WebXR in Chromium](docs/webxr-chromium.md) | Installing and buying, watching VR180/360, the Chromium build |
+| [PC in the headset](docs/pc-in-headset.md) | Windows and Linux host implementation and test coverage |
 | [Mac in the headset](docs/mac-in-headset.md) | Mac windows and screens as panels in the Frame, with laser and keyboard input |
 | [VR mods and custom songs](docs/mods.md) | Per-game feasibility, real-Frame results and blockers; no installer yet |
 | [SSH](docs/ssh.md) · [Streaming](docs/streaming.md) · [Files](docs/file-transfer.md) · [Panels](docs/panels.md) · [Tailscale](docs/tailscale.md) | Topic notes |
@@ -251,5 +255,7 @@ into a draft release, which reaches users once published. See

 ## License

-[MIT](LICENSE). Steam, Steam Frame and SteamVR are trademarks of Valve
+[MIT](LICENSE). The apps also ship other people's software under its own
+licence, notably KDE Connect (GPL) for the keyboard and trackpad; see
+[THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md). Steam, Steam Frame and SteamVR are trademarks of Valve
 Corporation. This project isn't affiliated with or endorsed by Valve.
@@ -0,0 +1,15 @@
+# Third-party software in Frame Control
+
+Frame Control's own code is under the [MIT licence](LICENSE). The apps also
+ship other people's software, unchanged, each under its own licence:
+
+| What | Where | Licence | Details |
+|---|---|---|---|
+| KDE Connect 24.02.2 and five libraries, as Valve builds them for the Frame | Desktop apps and the iPhone app; copied to the Frame for the keyboard and trackpad | GPL and LGPL (per package) | [frame/kdeconnect/NOTICE.md](frame/kdeconnect/NOTICE.md), licence texts in [frame/kdeconnect/LICENSES](frame/kdeconnect/LICENSES), complete source in the [kdeconnect-frame-24.02.2-1 release](https://github.com/saphid/frame-control/releases/tag/kdeconnect-frame-24.02.2-1) |
+| Python 3.12 ([python-build-standalone](https://github.com/astral-sh/python-build-standalone)) | Desktop apps | PSF License and others | Included with it, in the app's `python` folder |
+| adb (Android SDK Platform-Tools) | Desktop apps (not Linux arm64) | Apache-2.0 and others | `NOTICE.txt` in the app's `tools` folder |
+| Mozilla's CA certificate list, as published by curl | Desktop apps | MPL-2.0 | https://curl.se/docs/caextract.html |
+| Electron | Desktop apps | MIT (Chromium: BSD-3-Clause and others) | `LICENSE` and `LICENSES.chromium.html` in the app |
+
+Frame Control starts KDE Connect and talks to it over its network protocol;
+it doesn't link to it or include its code.
@@ -1,7 +1,9 @@
 // Downloads what the app bundles so users install nothing else: a standalone
 // Python (python-build-standalone), adb (Android platform-tools) and a CA
 // bundle. Each goes in build/deps/<os>-<arch>/{python,tools}, which package.json
-// copies into the app's resources. Everything is pinned by version and SHA-256.
+// copies into the app's resources. Also KDE Connect for the Frame (the same arm64
+// packages for every build), into ../frame/kdeconnect/packages as listed in
+// ../frame/kdeconnect/packages.json. Everything is pinned by version and SHA-256.
 //   node build/fetch-deps.js mac arm64 | win x64 | linux x64 arm64
 const crypto = require("crypto");
 const fs = require("fs");
@@ -127,8 +129,26 @@ async function fetch(os, arch) {
  console.log(`${key}: ${version} -> ${out}`);
 }

+// As frame/kdeconnect/fetch.py does for the iPhone app's bundle.
+async function fetchKdeConnect() {
+  const dir = path.join(__dirname, "..", "..", "frame", "kdeconnect");
+  const manifest = JSON.parse(fs.readFileSync(path.join(dir, "packages.json"), "utf8"));
+  const out = path.join(dir, "packages");
+  fs.mkdirSync(out, { recursive: true });
+  const sha = (file) => crypto.createHash("sha256").update(fs.readFileSync(file)).digest("hex");
+  for (const p of manifest.packages) {
+    const file = path.join(out, p.file);
+    if (fs.existsSync(file) && sha(file) === p.sha256) continue;
+    await download(manifest.release + p.file, p.sha256, file);
+  }
+  const wanted = new Set(manifest.packages.map((p) => p.file));
+  for (const f of fs.readdirSync(out)) if (!wanted.has(f)) fs.rmSync(path.join(out, f), { recursive: true, force: true });
+  console.log(`KDE Connect for the Frame: ${manifest.packages.length} packages -> ${out}`);
+}
+
 (async () => {
  const [os, ...archs] = process.argv.slice(2);
  if (!os || !archs.length) throw new Error("usage: node build/fetch-deps.js <mac|win|linux> <arch>...");
  for (const arch of archs) await fetch(os, arch);
+  await fetchKdeConnect();
 })().catch((e) => { console.error(e.message); process.exit(1); });
@@ -249,6 +249,7 @@ function fromUi(e) {

 ipcMain.handle("clipboard:read", (e) => fromUi(e) ? clipboard.readText() : "");
 ipcMain.handle("connection:setup", (e) => { if (fromUi(e)) setUpConnection(); });
+ipcMain.on("keys:capture", (e, on) => { if (fromUi(e)) win.webContents.setIgnoreMenuShortcuts(on === true); });
 ipcMain.handle("update:get", (e) => fromUi(e) ? publicUpdate() : null);
 ipcMain.handle("update:check", (e) => fromUi(e) ? checkForUpdate({ manual: true }).then(publicUpdate) : null);
 ipcMain.handle("update:install", (e) => { if (fromUi(e)) installUpdate(); });
@@ -11,8 +11,9 @@
    "icon": "env -u ELECTRON_RUN_AS_NODE electron build/make-icon.js",
    "dist": "sh ../mac/frame-mac-view/build.sh && node build/fetch-deps.js mac arm64 && electron-builder --mac --arm64 --publish never",
    "dist:dir": "sh ../mac/frame-mac-view/build.sh && node build/fetch-deps.js mac arm64 && electron-builder --mac --arm64 --dir",
-    "dist:linux": "node build/fetch-deps.js linux x64 arm64 && electron-builder --linux --x64 --arm64 --publish never",
-    "dist:win": "node build/fetch-deps.js win x64 && electron-builder --win --x64 --publish never"
+    "dist:linux": "node build/fetch-deps.js linux x64 && electron-builder --linux --x64 --publish never",
+    "dist:win": "node build/fetch-deps.js win x64 && electron-builder --win --x64 --publish never",
+    "dist:linux:arm64": "node build/fetch-deps.js linux arm64 && electron-builder --linux --arm64 --publish never"
  },
  "devDependencies": {
    "electron": "^44.4.5",
@@ -66,6 +67,14 @@
          "*.py"
        ]
      },
+      {
+        "from": "../frame/openxr-compat",
+        "to": "frame/openxr-compat",
+        "filter": [
+          "XrApiLayer_FRAME_compat.json",
+          "prebuilt/**/*.so"
+        ]
+      },
      {
        "from": "../frame/devkit-utils",
        "to": "frame/devkit-utils",
@@ -74,6 +83,16 @@
          "!**/__pycache__/**"
        ]
      },
+      {
+        "from": "../frame/kdeconnect",
+        "to": "frame/kdeconnect",
+        "filter": [
+          "packages.json",
+          "NOTICE.md",
+          "LICENSES/**/*",
+          "packages/*.pkg.tar.zst"
+        ]
+      },
      {
        "from": "../apk-catalog",
        "to": "apk-catalog",
@@ -96,6 +115,14 @@
        "filter": [
          "**/*"
        ]
+      },
+      {
+        "from": "../THIRD_PARTY_NOTICES.md",
+        "to": "THIRD_PARTY_NOTICES.md"
+      },
+      {
+        "from": "../LICENSE",
+        "to": "LICENSE"
      }
    ],
    "mac": {
@@ -145,7 +172,16 @@
        "entry": {
          "StartupWMClass": "frame-control"
        }
-      }
+      },
+      "extraResources": [
+        {
+          "from": "build/desktop/${os}-${arch}",
+          "to": "desktop/bundle",
+          "filter": [
+            "**/*"
+          ]
+        }
+      ]
    },
    "deb": {
      "depends": [
@@ -158,7 +194,16 @@
        "zip"
      ],
      "icon": "build/icon.png",
-      "artifactName": "Frame-Control-win-${arch}.${ext}"
+      "artifactName": "Frame-Control-win-${arch}.${ext}",
+      "extraResources": [
+        {
+          "from": "build/desktop/${os}-${arch}",
+          "to": "desktop/bundle",
+          "filter": [
+            "**/*"
+          ]
+        }
+      ]
    },
    "nsis": {
      "oneClick": false,
@@ -11,6 +11,8 @@ const { contextBridge, ipcRenderer, webUtils } = require("electron");
 contextBridge.exposeInMainWorld("frameApp", {
  readClipboard: () => ipcRenderer.invoke("clipboard:read"),
  setUpConnection: () => ipcRenderer.invoke("connection:setup"),
+  // While the keyboard-and-trackpad panel holds the keyboard, ⌘W, ⌘R and the rest go to the Frame.
+  captureKeys: (on) => ipcRenderer.send("keys:capture", !!on),
  pathForFile: (file) => { try { return webUtils.getPathForFile(file) || ""; } catch { return ""; } },
  // Updates (app/updater.js): the page shows a banner and an Update button.
  update: {
@@ -0,0 +1,311 @@
+{
+ "label": "pc-agent-frame-arm64-hairpin",
+ "date": "2026-09-28T22:36:19",
+ "commit": "c5fc552+dirty",
+ "config": {
+  "quality": "balanced",
+  "mode": "separate",
+  "net": "none",
+  "delay_ms": 0,
+  "buffer_ms": 250,
+  "host": "frame",
+  "usb": false,
+  "ssh_opts": [],
+  "encoder": "",
+  "duration_s": 10.0,
+  "browser_flags": []
+ },
+ "frame_build": "20260925.6191901",
+ "mac": "26.5.2",
+ "host_platform": "Linux aarch64, SteamOS Frame, BUILD_ID 20260925.6191901 (synthetic host only)",
+ "source": "",
+ "pc_host": true,
+ "headset": "0:03.056203 [Info] - 1 - leaving standby",
+ "scenarios": [
+  {
+   "scenario": "test",
+   "frames_sent": 351,
+   "frames_drawn": 351,
+   "frames_shown": 324,
+   "duration_s": 10.1,
+   "stages_ms": {
+    "capture": {
+     "p50": 0.1,
+     "p95": 0.2,
+     "p99": 0.5,
+     "n": 351
+    },
+    "queue": {
+     "p50": 0.1,
+     "p95": 0.3,
+     "p99": 0.4,
+     "n": 351
+    },
+    "encode": {
+     "p50": 2.0,
+     "p95": 2.9,
+     "p99": 3.5,
+     "n": 351
+    },
+    "socket": {
+     "p50": 0.1,
+     "p95": 0.4,
+     "p99": 0.6,
+     "n": 351
+    },
+    "network": {
+     "p50": 11.6,
+     "p95": 75.7,
+     "p99": 130.1,
+     "n": 351
+    },
+    "decode": {
+     "p50": 0.7,
+     "p95": 2.1,
+     "p99": 4.1,
+     "n": 351
+    },
+    "draw": {
+     "p50": 0.4,
+     "p95": 0.8,
+     "p99": 1.1,
+     "n": 351
+    },
+    "present": {
+     "p50": 0.8,
+     "p95": 18.1,
+     "p99": 24.9,
+     "n": 324
+    },
+    "content": {
+     "p50": 15.1,
+     "p95": 80.3,
+     "p99": 134.2,
+     "n": 351
+    },
+    "content_shown": {
+     "p50": 21.0,
+     "p95": 71.8,
+     "p99": 146.3,
+     "n": 324
+    }
+   },
+   "fps": 34.8,
+   "fps_shown": 32.0,
+   "late_pct": 53.41,
+   "stall_max": 226.8,
+   "stalls_over_100ms": 7,
+   "mbps": 0.26,
+   "keyframes": 6,
+   "size": "1280x720",
+   "captured": 607,
+   "viewer_never_drawn": 0,
+   "input_ms": {
+    "p50": 43.3,
+    "p95": 98.4,
+    "p99": 110.1,
+    "n": 18
+   },
+   "input_shown_ms": {
+    "p50": 54.7,
+    "p95": 98.9,
+    "p99": 114.0,
+    "n": 18
+   },
+   "input_parts_ms": {
+    "uplink": {
+     "p50": 17.1,
+     "p95": 48.3,
+     "p99": 53.1,
+     "n": 18
+    },
+    "mac": {
+     "p50": 12.5,
+     "p95": 32.9,
+     "p99": 35.7,
+     "n": 18
+    },
+    "back": {
+     "p50": 16.8,
+     "p95": 50.0,
+     "p99": 55.9,
+     "n": 18
+    }
+   },
+   "inputs": {
+    "asked": 18,
+    "sent": 18,
+    "seen": 18
+   },
+   "timeline": [
+    {
+     "t": 0,
+     "fps": 38,
+     "mbps": 0.3,
+     "content_p50": 14.8,
+     "content_p95": 25.3,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 1,
+     "fps": 33,
+     "mbps": 0.24,
+     "content_p50": 15.6,
+     "content_p95": 103.5,
+     "bitrate": 3845448,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 2,
+     "fps": 39,
+     "mbps": 0.28,
+     "content_p50": 15.6,
+     "content_p95": 29.9,
+     "bitrate": 5283790,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 3,
+     "fps": 25,
+     "mbps": 0.21,
+     "content_p50": 17.8,
+     "content_p95": 175.9,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 4,
+     "fps": 34,
+     "mbps": 0.22,
+     "content_p50": 15.4,
+     "content_p95": 69.8,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 5,
+     "fps": 38,
+     "mbps": 0.29,
+     "content_p50": 17.7,
+     "content_p95": 68.7,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 6,
+     "fps": 38,
+     "mbps": 0.26,
+     "content_p50": 15.0,
+     "content_p95": 18.2,
+     "bitrate": 3091280,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 7,
+     "fps": 30,
+     "mbps": 0.22,
+     "content_p50": 19.2,
+     "content_p95": 111.0,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 8,
+     "fps": 35,
+     "mbps": 0.26,
+     "content_p50": 13.4,
+     "content_p95": 102.6,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 9,
+     "fps": 38,
+     "mbps": 0.28,
+     "content_p50": 12.3,
+     "content_p95": 20.9,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 10,
+     "fps": 3,
+     "mbps": 0.02,
+     "content_p50": 20.9,
+     "content_p95": 24.7,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    }
+   ],
+   "adapt": [],
+   "content_p50": 15.1,
+   "content_p95": 80.3,
+   "input_p50": 43.3,
+   "input_p95": 98.4,
+   "grades": {
+    "input_replies": "local",
+    "content_p50": "local",
+    "content_p95": "acceptable",
+    "input_p50": "local",
+    "input_p95": "acceptable",
+    "fps": "bad",
+    "late_pct": "bad",
+    "stall_max": "acceptable"
+   },
+   "controller": {
+    "target": 3442081,
+    "ceiling": 5529600,
+    "tier": 0,
+    "fps": 60,
+    "scale": 1.0,
+    "baseRtt": 13.334,
+    "inFlight": 1,
+    "slack": 71.738,
+    "adapt": true
+   },
+   "events": [
+    {
+     "t": 3.77,
+     "e": "target 2764800 bit/s; tier 0"
+    },
+    {
+     "t": 7.42,
+     "e": "target 1725204 bit/s; tier 0"
+    }
+   ],
+   "source_fps": 60.1,
+   "cpu": {
+    "host": "not sampled"
+   },
+   "viewer": "h264 software; ANGLE (Mesa, zink Vulkan 1.4(Turnip Adreno (TM) 750 (MESA_TURNIP)), OpenGL 4.6); raf 71 Hz",
+   "show_s": 1.88,
+   "panel": "valve.steam.desktopgame.2001932457",
+   "src": "test",
+   "route": "network"
+  }
+ ],
+ "proof": "Synthetic x264 PC agent runs on the Frame itself, forwarded via Mac and back. Not Windows/Linux desktop capture or laser input."
+}
@@ -0,0 +1,302 @@
+{
+ "label": "pc-agent-frame-arm64-final",
+ "date": "2026-09-28T22:55:27",
+ "commit": "cd20243",
+ "config": {
+  "quality": "balanced",
+  "mode": "native",
+  "net": "none",
+  "delay_ms": 0,
+  "buffer_ms": 250,
+  "host": "frame",
+  "usb": false,
+  "ssh_opts": [],
+  "encoder": "",
+  "duration_s": 10.0,
+  "browser_flags": []
+ },
+ "frame_build": "20260925.6191901",
+ "mac": "26.5.2",
+ "host_platform": "Linux aarch64, SteamOS Frame, BUILD_ID 20260925.6191901 (synthetic host only)",
+ "source": "",
+ "pc_host": true,
+ "headset": "0:03.056203 [Info] - 1 - leaving standby",
+ "scenarios": [
+  {
+   "scenario": "test",
+   "frames_sent": 400,
+   "frames_drawn": 400,
+   "frames_shown": 339,
+   "duration_s": 10.2,
+   "stages_ms": {
+    "capture": {
+     "p50": 0.1,
+     "p95": 0.1,
+     "p99": 0.2,
+     "n": 400
+    },
+    "queue": {
+     "p50": 0.1,
+     "p95": 0.2,
+     "p99": 0.4,
+     "n": 400
+    },
+    "encode": {
+     "p50": 2.0,
+     "p95": 2.7,
+     "p99": 3.1,
+     "n": 400
+    },
+    "socket": {
+     "p50": 0.1,
+     "p95": 0.3,
+     "p99": 0.4,
+     "n": 400
+    },
+    "network": {
+     "p50": 11.8,
+     "p95": 25.2,
+     "p99": 37.8,
+     "n": 400
+    },
+    "decode": {
+     "p50": 0.7,
+     "p95": 1.5,
+     "p99": 2.0,
+     "n": 400
+    },
+    "draw": {
+     "p50": 0.3,
+     "p95": 0.7,
+     "p99": 1.0,
+     "n": 400
+    },
+    "present": {
+     "p50": 0.8,
+     "p95": 19.3,
+     "p99": 26.8,
+     "n": 339
+    },
+    "content": {
+     "p50": 15.1,
+     "p95": 28.6,
+     "p99": 41.3,
+     "n": 400
+    },
+    "content_shown": {
+     "p50": 17.6,
+     "p95": 39.0,
+     "p99": 47.2,
+     "n": 339
+    }
+   },
+   "fps": 39.3,
+   "fps_shown": 33.4,
+   "late_pct": 50.25,
+   "stall_max": 69.3,
+   "stalls_over_100ms": 0,
+   "mbps": 0.35,
+   "keyframes": 6,
+   "size": "1280x720",
+   "captured": 612,
+   "viewer_never_drawn": 0,
+   "input_ms": {
+    "p50": 76.6,
+    "p95": 98.2,
+    "p99": 127.8,
+    "n": 19
+   },
+   "input_shown_ms": {
+    "p50": 80.5,
+    "p95": 107.8,
+    "p99": 128.1,
+    "n": 16
+   },
+   "input_parts_ms": {
+    "uplink": {
+     "p50": 36.5,
+     "p95": 57.6,
+     "p99": 83.2,
+     "n": 19
+    },
+    "mac": {
+     "p50": 14.6,
+     "p95": 31.3,
+     "p99": 31.7,
+     "n": 19
+    },
+    "back": {
+     "p50": 15.1,
+     "p95": 32.8,
+     "p99": 36.2,
+     "n": 19
+    }
+   },
+   "inputs": {
+    "asked": 19,
+    "sent": 19,
+    "seen": 19
+   },
+   "timeline": [
+    {
+     "t": 0,
+     "fps": 40,
+     "mbps": 0.34,
+     "content_p50": 11.7,
+     "content_p95": 27.4,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 1,
+     "fps": 39,
+     "mbps": 0.37,
+     "content_p50": 11.9,
+     "content_p95": 28.2,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 2,
+     "fps": 41,
+     "mbps": 0.35,
+     "content_p50": 11.4,
+     "content_p95": 16.6,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 3,
+     "fps": 39,
+     "mbps": 0.37,
+     "content_p50": 12.7,
+     "content_p95": 28.0,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 4,
+     "fps": 38,
+     "mbps": 0.33,
+     "content_p50": 15.3,
+     "content_p95": 30.0,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 5,
+     "fps": 39,
+     "mbps": 0.37,
+     "content_p50": 16.7,
+     "content_p95": 28.5,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 6,
+     "fps": 41,
+     "mbps": 0.38,
+     "content_p50": 15.9,
+     "content_p95": 29.4,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 7,
+     "fps": 41,
+     "mbps": 0.31,
+     "content_p50": 15.6,
+     "content_p95": 28.2,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 8,
+     "fps": 38,
+     "mbps": 0.38,
+     "content_p50": 15.5,
+     "content_p95": 25.9,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 9,
+     "fps": 38,
+     "mbps": 0.29,
+     "content_p50": 16.7,
+     "content_p95": 28.8,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 10,
+     "fps": 6,
+     "mbps": 0.03,
+     "content_p50": 17.6,
+     "content_p95": 23.1,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    }
+   ],
+   "adapt": [],
+   "content_p50": 15.1,
+   "content_p95": 28.6,
+   "input_p50": 76.6,
+   "input_p95": 98.2,
+   "grades": {
+    "input_replies": "local",
+    "content_p50": "local",
+    "content_p95": "local",
+    "input_p50": "acceptable",
+    "input_p95": "acceptable",
+    "fps": "bad",
+    "late_pct": "bad",
+    "stall_max": "local"
+   },
+   "controller": {
+    "target": 5529600,
+    "ceiling": 5529600,
+    "tier": 0,
+    "fps": 60,
+    "scale": 1.0,
+    "baseRtt": 12.332,
+    "inFlight": 0,
+    "slack": 74.12,
+    "adapt": true
+   },
+   "events": [],
+   "source_fps": 60.0,
+   "cpu": {
+    "host": "not sampled"
+   },
+   "viewer": "h264 software; ANGLE (Mesa, zink Vulkan 1.4(Turnip Adreno (TM) 750 (MESA_TURNIP)), OpenGL 4.6); raf 72 Hz",
+   "show_s": 1.75,
+   "panel": "valve.steam.desktopgame.2001932457",
+   "src": "test",
+   "route": "network"
+  }
+ ],
+ "proof": "Synthetic x264 PC agent runs on the Frame itself, forwarded via Mac and back. Not Windows/Linux desktop capture or laser input."
+}
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+"""Build the common controller for the Python PC host (a C11 compiler needed)."""
+import os
+from pathlib import Path
+import subprocess
+import sys
+
+root = Path(__file__).resolve().parent
+suffix = '.dll' if sys.platform == 'win32' else '.dylib' if sys.platform == 'darwin' else '.so'
+out = root / ('controller' + suffix)
+if sys.platform == 'win32' and os.environ.get('CC', 'cl') == 'cl':
+    cmd = ['cl', '/nologo', '/O2', '/LD', '/std:c11', str(root / 'controller.c'), '/link', '/OUT:' + str(out)]
+else:
+    cmd = [os.environ.get('CC', 'cc'), '-O2', '-std=c11', '-shared', '-fPIC', str(root / 'controller.c'), '-o', str(out)]
+subprocess.run(cmd, cwd=root, check=True)
+print(out)
@@ -0,0 +1,118 @@
+#!/usr/bin/env python3
+"""Build our native PC adapter and bundle its ordinary shared libraries.
+
+Run on the target architecture after installing GStreamer development packages.
+No GStreamer executable or desktop streaming application is shipped or invoked.
+Linux libc, display/GPU drivers and the portal service remain platform pieces.
+"""
+import argparse
+import json
+import os
+from pathlib import Path
+import re
+import shutil
+import subprocess
+import sys
+
+ROOT = Path(__file__).resolve().parent
+
+
+def output(*args):
+    return subprocess.check_output(args, text=True).strip()
+
+
+def build(destination):
+    win = sys.platform == 'win32'
+    destination.mkdir(parents=True, exist_ok=True)
+    modules = ['gstreamer-1.0', 'gstreamer-app-1.0', 'gstreamer-video-1.0']
+    if not win:
+        modules += ['gio-unix-2.0']
+    import shlex
+    flags = shlex.split(output('pkg-config', '--cflags', '--libs', *modules))
+    lib = destination / ('pc-host.dll' if win else 'pc-host.so')
+    cmd = [os.environ.get('CC', 'gcc' if win else 'cc'), '-std=c11', '-O2', '-shared', '-Wall', '-Wextra']
+    if not win:
+        cmd += ['-fPIC', '-Wl,-rpath,$ORIGIN/lib']
+    subprocess.run(cmd + [str(ROOT / f) for f in ('controller.c', 'capture.c', 'portal.c')] + flags + ['-o', str(lib)], check=True)
+    prefix = Path(output('pkg-config', '--variable=prefix', 'gstreamer-1.0'))
+    plugin_dir = Path(output('pkg-config', '--variable=pluginsdir', 'gstreamer-1.0'))
+    plugins_out, libs_out = destination / 'lib' / 'gstreamer-1.0', destination / ('bin' if win else 'lib')
+    plugins_out.mkdir(parents=True, exist_ok=True)
+    libs_out.mkdir(parents=True, exist_ok=True)
+    names = ['coreelements', 'videotestsrc', 'videoconvertscale', 'app', 'jpeg', 'videoparsersbad', 'x264']
+    names += ['d3d11', 'mediafoundation'] if win else ['pipewire', 'va']
+    pending = [lib]
+    for name in names:
+        matches = list(plugin_dir.glob('*gst' + name + ('.dll' if win else '.so')))
+        if not matches:
+            raise SystemExit('Missing GStreamer library: ' + name)
+        for source in matches:
+            target = plugins_out / source.name
+            shutil.copy2(source, target)
+            pending.append(source)
+    if not win:
+        # PipeWire dynamically loads support and protocol modules. ldd cannot
+        # discover those; bundle them with a private client-only config instead
+        # of accidentally loading a different distro's client modules/config.
+        libdir = plugin_dir.parent
+        for relative in ('pipewire-0.3/libpipewire-module-protocol-native.so',
+                         'pipewire-0.3/libpipewire-module-client-node.so',
+                         'pipewire-0.3/libpipewire-module-adapter.so',
+                         'spa-0.2/support/libspa-support.so',
+                         'spa-0.2/support/libspa-dbus.so',
+                         'spa-0.2/videoconvert/libspa-videoconvert.so'):
+            source = libdir / relative
+            if not source.is_file():
+                raise SystemExit('Missing PipeWire runtime library: ' + str(source))
+            target = destination / 'lib' / relative
+            target.parent.mkdir(parents=True, exist_ok=True)
+            shutil.copy2(source, target)
+            pending.append(source)
+        config = destination / 'share' / 'pipewire'
+        config.mkdir(parents=True, exist_ok=True)
+        (config / 'client.conf').write_text(
+            'context.spa-libs = { support.* = support/libspa-support video.* = videoconvert/libspa-videoconvert }\n'
+            'context.modules = [\n'
+            '  { name = libpipewire-module-protocol-native }\n'
+            '  { name = libpipewire-module-client-node }\n'
+            '  { name = libpipewire-module-adapter }\n'
+            ']\n')
+    copied = set()
+    while pending:
+        binary = pending.pop()
+        if win:
+            imported = re.findall(r'DLL Name:\s*(\S+)', output('objdump', '-p', str(binary)))
+            dependencies = [prefix / 'bin' / name for name in imported]
+        else:
+            dependencies = [Path(p) for p in re.findall(r'=>\s+(/\S+)', output('ldd', str(binary)))]
+        for dep in dependencies:
+            if not dep.is_file() or dep.name in copied:
+                continue
+            if not win and re.match(r'lib(c|m|dl|rt|pthread|resolv)\.so', dep.name):
+                continue
+            shutil.copy2(dep, libs_out / dep.name)
+            copied.add(dep.name)
+            pending.append(dep)
+    # License texts and package provenance accompany the dynamically linked
+    # libraries. Distribution builders keep the upstream package/source URLs.
+    licenses = destination / 'licenses'
+    licenses.mkdir(exist_ok=True)
+    if win:
+        source = prefix / 'share' / 'licenses'
+        if source.exists():
+            shutil.copytree(source, licenses, dirs_exist_ok=True)
+        packages = output('pacman', '-Q') if shutil.which('pacman') else 'See MSYS2 build log'
+    else:
+        packages = output('dpkg-query', '-W', '-f=${Package} ${Version}\n') if shutil.which('dpkg-query') else ''
+        # Debian copyright files contain licenses and source homepage details.
+        for path in Path('/usr/share/doc').glob('*/copyright'):
+            shutil.copy2(path, licenses / (path.parent.name + '.copyright'))
+    (destination / 'libraries.json').write_text(json.dumps(dict(gstreamer=output('pkg-config', '--modversion', 'gstreamer-1.0'),
+        libraries=sorted(copied), packages=packages), indent=2))
+    print(lib)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('--out', type=Path, default=ROOT / 'bundle')
+    build(parser.parse_args().out.resolve())
@@ -0,0 +1,125 @@
+/* Frame Control's capture/encode adapter. GStreamer is a bundled library;
+ * capture uses WGC on Windows and the consented PipeWire fd on Linux. */
+#include "controller.h"
+#include <gst/gst.h>
+#include <gst/app/gstappsink.h>
+#include <gst/video/video-event.h>
+#include <string.h>
+
+typedef int (*Gate)(int stage, int64_t pts, int64_t capture, int64_t arrived);
+typedef struct {
+    GstElement *pipeline, *encoder, *sink, *raw_queue;
+    Gate gate;
+    GstSample *sample;
+    GstMapInfo map;
+    int mapped;
+    char error[512];
+} Capture;
+typedef struct { const unsigned char *data; int size, key, width, height; int64_t pts; } Encoded;
+FC_API int64_t fc_now(void) {return g_get_monotonic_time();}
+FC_API void fc_gst_init(void) {gst_init(NULL,NULL);}
+FC_API int fc_has_element(const char *name) {
+    GstElementFactory *f=gst_element_factory_find(name);
+    if(!f)return 0;gst_object_unref(f);return 1;
+}
+static GstPadProbeReturn probe(GstPad *pad,GstPadProbeInfo *info,gpointer data) {
+    Capture *c=data; GstBuffer *b=GST_PAD_PROBE_INFO_BUFFER(info);
+    if(!b)return GST_PAD_PROBE_OK;
+    int64_t now=fc_now(), cap=now;
+    GstClock *clock=gst_element_get_clock(c->pipeline);
+    if(clock && GST_BUFFER_PTS_IS_VALID(b)) {
+        GstClockTime current=gst_clock_get_time(clock),origin=gst_element_get_base_time(c->pipeline);
+        if(current>=origin && current-origin>=GST_BUFFER_PTS(b))
+            cap-= (int64_t)((current-origin-GST_BUFFER_PTS(b))/1000);
+    }
+    if(clock)gst_object_unref(clock);
+    int stage=GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pad),"stage"));
+    if(stage==1) return c->gate(stage,(int64_t)GST_BUFFER_PTS(b),cap,now)>0 ? GST_PAD_PROBE_OK : GST_PAD_PROBE_DROP;
+    int phase=0;
+    for(;;) {
+        /* While congested, prefer a newer raw picture queued upstream. If
+         * nothing changed, retain this last picture until the gate opens;
+         * an idle window must not stay stale after a dropped final update. */
+        guint queued=0;
+        if(phase && c->raw_queue)g_object_get(c->raw_queue,"current-level-buffers",&queued,NULL);
+        if(queued)return GST_PAD_PROBE_DROP;
+        int decision=c->gate(phase,(int64_t)GST_BUFFER_PTS(b),cap,now);
+        if(decision)return decision>0 ? GST_PAD_PROBE_OK : GST_PAD_PROBE_DROP;
+        phase=2;g_usleep(2000);
+    }
+}
+FC_API Capture *fc_capture_open(const char *pipeline,Gate gate,char *error,int capacity) {
+    GError *e=NULL;Capture *c=g_new0(Capture,1);c->gate=gate;
+    c->pipeline=gst_parse_launch(pipeline,&e);
+    if(e || !c->pipeline) {
+        g_strlcpy(error,e?e->message:"No pipeline",capacity);
+        if(e)g_error_free(e);if(c->pipeline)gst_object_unref(c->pipeline);g_free(c);return NULL;
+    }
+    c->encoder=gst_bin_get_by_name(GST_BIN(c->pipeline),"enc");
+    c->sink=gst_bin_get_by_name(GST_BIN(c->pipeline),"out");
+    GstElement *raw=gst_bin_get_by_name(GST_BIN(c->pipeline),"gate");
+    if(!c->encoder || !c->sink || !raw) {
+        g_strlcpy(error,"Pipeline is missing enc, out or gate",capacity);
+        if(raw)gst_object_unref(raw);if(c->encoder)gst_object_unref(c->encoder);
+        if(c->sink)gst_object_unref(c->sink);gst_object_unref(c->pipeline);g_free(c);return NULL;
+    }
+    c->raw_queue=gst_bin_get_by_name(GST_BIN(c->pipeline),"raw_queue");
+    GstPad *p=gst_element_get_static_pad(raw,"src");
+    g_object_set_data(G_OBJECT(p),"stage",GINT_TO_POINTER(0));
+    gst_pad_add_probe(p,GST_PAD_PROBE_TYPE_BUFFER,probe,c,NULL);gst_object_unref(p);gst_object_unref(raw);
+    p=gst_element_get_static_pad(c->encoder,"sink");
+    g_object_set_data(G_OBJECT(p),"stage",GINT_TO_POINTER(1));
+    gst_pad_add_probe(p,GST_PAD_PROBE_TYPE_BUFFER,probe,c,NULL);gst_object_unref(p);
+    gst_element_set_state(c->pipeline,GST_STATE_PLAYING);
+    return c;
+}
+FC_API int fc_capture_pull(Capture *c,Encoded *out) {
+    if(c->mapped) {gst_buffer_unmap(gst_sample_get_buffer(c->sample),&c->map);c->mapped=0;}
+    if(c->sample){gst_sample_unref(c->sample);c->sample=NULL;}
+    GstBus *bus=gst_element_get_bus(c->pipeline);
+    GstMessage *m=gst_bus_pop_filtered(bus,GST_MESSAGE_ERROR);gst_object_unref(bus);
+    if(m) {
+        if(GST_MESSAGE_TYPE(m)==GST_MESSAGE_ERROR) {
+            GError *e=NULL;char *debug=NULL;gst_message_parse_error(m,&e,&debug);
+            g_strlcpy(c->error,e->message,sizeof(c->error));g_error_free(e);g_free(debug);
+        } else g_strlcpy(c->error,"The capture source closed",sizeof(c->error));
+        gst_message_unref(m);return -1;
+    }
+    c->sample=gst_app_sink_try_pull_sample(GST_APP_SINK(c->sink),100*GST_MSECOND);
+    if(!c->sample) {
+        if(gst_app_sink_is_eos(GST_APP_SINK(c->sink))) {
+            g_strlcpy(c->error,"The capture source closed",sizeof(c->error));return -1;
+        }
+        return 0;
+    }
+    GstBuffer *b=gst_sample_get_buffer(c->sample);
+    if(!gst_buffer_map(b,&c->map,GST_MAP_READ))return 0;
+    c->mapped=1;out->data=c->map.data;out->size=(int)c->map.size;
+    out->key=!GST_BUFFER_FLAG_IS_SET(b,GST_BUFFER_FLAG_DELTA_UNIT);out->pts=(int64_t)GST_BUFFER_PTS(b);
+    const GstStructure *s=gst_caps_get_structure(gst_sample_get_caps(c->sample),0);
+    gst_structure_get_int(s,"width",&out->width);gst_structure_get_int(s,"height",&out->height);return 1;
+}
+FC_API const char *fc_capture_error(Capture *c) {return c->error;}
+FC_API void fc_capture_bitrate(Capture *c,int bps) {
+    g_object_set(c->encoder,"bitrate",(guint)MAX(1,bps/1000),NULL);
+}
+FC_API void fc_capture_test(Capture *c,uint32_t input) {
+    GstElement *source=gst_bin_get_by_name(GST_BIN(c->pipeline),"source");
+    if(source) {
+        /* Each benchmark click visibly changes the ball, before injection is
+         * timestamped. This is a response, not merely a protocol input echo. */
+        guint color=0xff000000u | ((input*2654435761u)&0x00ffffffu);
+        g_object_set(source,"foreground-color",color,NULL);gst_object_unref(source);
+    }
+}
+FC_API void fc_capture_key(Capture *c) {
+    GstPad *p=gst_element_get_static_pad(c->encoder,"src");
+    gst_pad_send_event(p,gst_video_event_new_upstream_force_key_unit(GST_CLOCK_TIME_NONE,TRUE,0));gst_object_unref(p);
+}
+FC_API void fc_capture_close(Capture *c) {
+    gst_element_set_state(c->pipeline,GST_STATE_NULL);
+    if(c->mapped)gst_buffer_unmap(gst_sample_get_buffer(c->sample),&c->map);
+    if(c->sample)gst_sample_unref(c->sample);
+    if(c->raw_queue)gst_object_unref(c->raw_queue);
+    gst_object_unref(c->sink);gst_object_unref(c->encoder);gst_object_unref(c->pipeline);g_free(c);
+}
@@ -0,0 +1,127 @@
+/* Extracted from the Mac agent's RateController. Same gate, demand protection,
+ * bitrate recovery and tier hysteresis for every host. Bounded sample buffers. */
+#include "controller.h"
+#include <stdlib.h>
+#include <string.h>
+#define CAP 1024
+#define MIN(a,b) ((a)<(b)?(a):(b))
+#define MAX(a,b) ((a)>(b)?(a):(b))
+typedef struct { int64_t t, v; uint32_t seq; } Sample;
+typedef struct { Sample a[CAP]; int n; } Samples;
+struct FCController {
+    int max_fps, enabled, ceiling, target, tier, frame_bytes, held, signal, saw_ack;
+    int64_t decrease, increase, below, above, slack;
+    Samples flight, rtts, acked, sent, captures;
+};
+static const int fps[] = {60,45,30,30,30}, scale[] = {100,100,100,75,50};
+static const double floors[] = {.45,.28,.16,.08,0};
+static void remove_first(Samples *s, int n) {
+    s->n -= n; memmove(s->a, s->a+n, (size_t)s->n*sizeof(Sample));
+}
+static void add(Samples *s, Sample v, int cap) {
+    if (s->n >= cap) remove_first(s, 1);
+    s->a[s->n++] = v;
+}
+static void expire(Samples *s, int64_t oldest) {
+    int n=0; while(n<s->n && s->a[n].t<oldest) n++;
+    remove_first(s,n);
+}
+static int64_t base(FCController *c) {
+    int64_t v=0;
+    for(int i=0;i<c->rtts.n;i++) if(!i || c->rtts.a[i].v<v) v=c->rtts.a[i].v;
+    return v;
+}
+static int compare(const void *a, const void *b) {
+    int64_t x=*(const int64_t*)a, y=*(const int64_t*)b;
+    return (x>y)-(x<y);
+}
+static int64_t quantile(Samples *s,int64_t since,int numerator,int denominator) {
+    int64_t a[CAP]; int n=0;
+    for(int i=0;i<s->n;i++) if(s->a[i].t>since) a[n++]=s->a[i].v;
+    if(!n) return 0;
+    qsort(a,(size_t)n,sizeof(int64_t),compare);
+    return a[n*numerator/denominator];
+}
+static int rate(Samples *s) {
+    int64_t total=0; for(int i=0;i<s->n;i++) total+=s->a[i].v;
+    return (int)MIN(total*16,2147483647);
+}
+FCController *fc_new(int max_fps,int enabled) {
+    FCController *c=calloc(1,sizeof(*c));
+    if(c) {c->max_fps=MAX(1,max_fps);c->enabled=enabled;c->slack=40000;}
+    return c;
+}
+void fc_free(FCController *c) {free(c);}
+void fc_ceiling(FCController *c,int bps) {
+    if(!c->target || c->target>bps) c->target=bps;
+    c->ceiling=bps;
+}
+int fc_gate(FCController *c,int64_t now,int counts) {
+    if(!c->enabled || !c->saw_ack) return 1;
+    expire(&c->flight,now-2000000);
+    if(!c->flight.n) return 1;
+    int64_t interval=1000000/MIN(c->max_fps,fps[c->tier]);
+    int window=MAX(3,(int)((base(c)+c->slack)/interval)+1);
+    if(c->flight.n<window && now-c->flight.a[0].t<=base(c)+c->slack) return 1;
+    if(counts) c->held++;
+    return 0;
+}
+void fc_capture(FCController *c,int64_t now) {add(&c->captures,(Sample){now,0,0},256);}
+void fc_sent(FCController *c,uint32_t seq,int bytes,int64_t now) {
+    Sample s={now,bytes,seq};add(&c->flight,s,512);add(&c->sent,s,CAP);
+}
+int fc_ack(FCController *c,uint32_t seq,int64_t now) {
+    c->saw_ack=1;
+    for(int i=0;i<c->flight.n;i++) if(c->flight.a[i].seq==seq) {
+        Sample s=c->flight.a[i];remove_first(&c->flight,i+1);
+        add(&c->rtts,(Sample){now,now-s.t,0},CAP);
+        add(&c->acked,(Sample){now,s.v,0},CAP);return 1;
+    }
+    return 0;
+}
+int fc_update(FCController *c,int64_t now) {
+    expire(&c->rtts,now-10000000);expire(&c->acked,now-500000);
+    expire(&c->sent,now-500000);expire(&c->flight,now-2000000);
+    expire(&c->captures,now-1000000);
+    if(!c->enabled || c->ceiling<=0) return 0;
+    int64_t baseline=base(c), spread=quantile(&c->rtts,now-2000000,9,10);
+    int64_t jitter=spread ? spread-baseline : 0;
+    c->slack=1000000/MIN(c->max_fps,fps[c->tier])+MIN(MAX(jitter*3/2,25000),80000);
+    int64_t recent=quantile(&c->rtts,now-300000,1,2);
+    int64_t queue=recent ? recent-baseline : 0;
+    int64_t age=c->flight.n ? now-c->flight.a[0].t : 0;
+    int delivered=rate(&c->acked),sending=rate(&c->sent);
+    if(c->sent.n) c->frame_bytes=sending/16/c->sent.n;
+    int demand=(int)MIN((int64_t)MIN(c->captures.n,MIN(c->max_fps,fps[c->tier]))*c->frame_bytes*8,2147483647);
+    int signal=(sending>=c->target/2 && queue>40000)||c->held>=3||age>baseline+100000;
+    int congested=signal && c->signal;c->signal=signal;c->held=0;
+    if(congested && now-c->decrease>300000) {
+        int next=MAX(300000,MIN((int64_t)c->target*4/5,MAX((int64_t)delivered*9/10,c->target/2)));
+        if(demand>0 && (int64_t)demand*2<=(int64_t)c->target*5/4) next=MAX(next,MIN(c->target,(int64_t)demand*2));
+        c->target=next;c->decrease=now;
+    } else if(!congested && now-c->decrease>1000000 && now-c->increase>250000 && c->target<c->ceiling &&
+              (sending>(int64_t)c->target*6/10 || now-c->decrease>3000000)) {
+        c->target=MIN(c->ceiling,(int64_t)(c->target*1.1)+50000);c->increase=now;
+    }
+    double share=(double)c->target/MAX(c->ceiling,1);
+    if(c->tier<4 && share<floors[c->tier] && sending>=(int64_t)c->target*7/10) {
+        if(!c->below)c->below=now;
+        if(now-c->below>500000) {
+            for(c->tier=0;c->tier<4 && share<floors[c->tier];c->tier++) {}
+            c->below=0;
+        }
+    } else c->below=0;
+    if(c->tier>0 && share>floors[c->tier-1]*1.25) {
+        if(!c->above)c->above=now;
+        if(now-c->above>2000000) {c->tier--;c->above=0;}
+    } else c->above=0;
+    return c->target;
+}
+int64_t fc_value(FCController *c,int field) {
+    switch(field) {
+    case 0:return c->target;case 1:return c->ceiling;case 2:return c->tier;
+    case 3:return MIN(c->max_fps,fps[c->tier]);case 4:return scale[c->tier];
+    case 5:return base(c);case 6:return c->flight.n;case 7:return c->slack;
+    default:return 0;
+    }
+}
@@ -0,0 +1,29 @@
+/* Shared latency controller. Times are monotonic host microseconds.
+ * Callers serialize access. Capture is gated BEFORE encoding: dropping an
+ * encoded inter frame would break the decoder's reference chain. */
+#ifndef FRAME_CONTROLLER_H
+#define FRAME_CONTROLLER_H
+#include <stdint.h>
+#ifdef _WIN32
+#define FC_API __declspec(dllexport)
+#else
+#define FC_API
+#endif
+#ifdef __cplusplus
+extern "C" {
+#endif
+typedef struct FCController FCController;
+FC_API FCController *fc_new(int fps, int enabled);
+FC_API void fc_free(FCController *c);
+FC_API void fc_ceiling(FCController *c, int bps);
+FC_API int fc_gate(FCController *c, int64_t now, int counts);
+FC_API void fc_capture(FCController *c, int64_t now);
+FC_API void fc_sent(FCController *c, uint32_t seq, int bytes, int64_t now);
+FC_API int fc_ack(FCController *c, uint32_t seq, int64_t now);
+FC_API int fc_update(FCController *c, int64_t now);
+/* target, ceiling, tier, fps, scale percent, baseline us, in flight, slack us */
+FC_API int64_t fc_value(FCController *c, int field);
+#ifdef __cplusplus
+}
+#endif
+#endif
@@ -0,0 +1,147 @@
+/* xdg-desktop-portal RemoteDesktop + ScreenCast, one consented session per
+ * panel. PipeWire receives the portal fd, never the unrestricted daemon fd.
+ * Input uses only the devices granted in Start's response. */
+#ifndef _WIN32
+#include "controller.h"
+#include <gio/gio.h>
+#include <gio/gunixfdlist.h>
+#include <unistd.h>
+#include <string.h>
+#define BUS "org.freedesktop.portal.Desktop"
+#define PATH "/org/freedesktop/portal/desktop"
+#define RD "org.freedesktop.portal.RemoteDesktop"
+#define SC "org.freedesktop.portal.ScreenCast"
+typedef struct {
+    GDBusConnection *bus;
+    GMainContext *context;
+    char *session;
+    int fd;
+    unsigned node, devices;
+    int width,height;
+} Portal;
+typedef struct {GVariant *result;int done;unsigned code;} Response;
+static void response(GDBusConnection *c,const char *sender,const char *path,const char *iface,
+                     const char *signal,GVariant *params,gpointer data) {
+    (void)c;(void)sender;(void)path;(void)iface;(void)signal;
+    Response *r=data;g_variant_get(params,"(u@a{sv})",&r->code,&r->result);r->done=1;
+}
+static void option(GVariantBuilder *b,const char *key,GVariant *v) {g_variant_builder_add(b,"{sv}",key,v);}
+static GVariant *request(Portal *p,const char *iface,const char *method,GVariant *args,
+                         const char *token,char *error,int capacity) {
+    char *sender=g_strdup(g_dbus_connection_get_unique_name(p->bus)+1);
+    for(char *c=sender;*c;c++)if(*c=='.')*c='_';
+    char *path=g_strdup_printf(PATH "/request/%s/%s",sender,token);g_free(sender);
+    Response r={0};GError *e=NULL;
+    guint sub=g_dbus_connection_signal_subscribe(p->bus,BUS,"org.freedesktop.portal.Request","Response",
+                                                 path,NULL,G_DBUS_SIGNAL_FLAGS_NONE,response,&r,NULL);
+    GVariant *reply=g_dbus_connection_call_sync(p->bus,BUS,PATH,iface,method,args,G_VARIANT_TYPE("(o)"),
+                                               G_DBUS_CALL_FLAGS_NONE,10000,NULL,&e);
+    if(reply)g_variant_unref(reply);
+    int64_t deadline=g_get_monotonic_time()+120000000;
+    while(!e && !r.done && g_get_monotonic_time()<deadline) {
+        while(g_main_context_iteration(p->context,FALSE)) {}
+        g_usleep(10000);
+    }
+    if(!r.done) {
+        GVariant *closed=g_dbus_connection_call_sync(p->bus,BUS,path,"org.freedesktop.portal.Request","Close",
+                                NULL,NULL,G_DBUS_CALL_FLAGS_NONE,2000,NULL,NULL);
+        if(closed)g_variant_unref(closed);
+    }
+    g_dbus_connection_signal_unsubscribe(p->bus,sub);g_free(path);
+    if(e || !r.done || r.code) {
+        g_strlcpy(error,e?e->message:!r.done?"Screen sharing request timed out":"Screen sharing was cancelled or refused",capacity);
+        if(e)g_error_free(e);if(r.result)g_variant_unref(r.result);return NULL;
+    }
+    return r.result;
+}
+FC_API void fc_portal_close(Portal *p) {
+    if(!p)return;
+    if(p->session && p->bus) {
+        GVariant *r=g_dbus_connection_call_sync(p->bus,BUS,p->session,"org.freedesktop.portal.Session","Close",
+                                                NULL,NULL,G_DBUS_CALL_FLAGS_NONE,2000,NULL,NULL);
+        if(r)g_variant_unref(r);
+    }
+    if(p->fd>=0){close(p->fd);p->fd=-1;}
+    g_free(p->session);if(p->bus)g_object_unref(p->bus);
+    if(p->context)g_main_context_unref(p->context);g_free(p);
+}
+/* Each pipeline gets a fresh restricted PipeWire connection. A dup of a
+ * previously consumed protocol socket is not a new connection.
+ * Ownership: the Portal owns p->fd for its whole life and is its only closer.
+ * pipewiresrc never takes the fd it is given: its core connects with
+ * pw_context_connect_fd(ctx, fcntl(fd, F_DUPFD_CLOEXEC, 3), ...) and that
+ * duplicate is what PipeWire closes on teardown (src/gst/gstpipewirecore.c,
+ * unchanged from 0.3.19 through 1.x). So closing p->fd here is not a double
+ * close; not closing it would leak one socket per pipeline reopen. The
+ * caller closes the previous pipeline before asking for a new fd. */
+FC_API int fc_portal_refresh(Portal *p,char *error,int capacity) {
+    GVariantBuilder b;g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    GUnixFDList *fds=NULL;GError *e=NULL;
+    GVariant *r=g_dbus_connection_call_with_unix_fd_list_sync(p->bus,BUS,PATH,SC,"OpenPipeWireRemote",
+         g_variant_new("(oa{sv})",p->session,&b),G_VARIANT_TYPE("(h)"),G_DBUS_CALL_FLAGS_NONE,10000,NULL,&fds,NULL,&e);
+    if(!r){g_strlcpy(error,e->message,capacity);g_error_free(e);return -1;}
+    int handle;g_variant_get(r,"(h)",&handle);g_variant_unref(r);
+    int fd=g_unix_fd_list_get(fds,handle,&e);g_object_unref(fds);
+    if(fd<0){g_strlcpy(error,e->message,capacity);g_error_free(e);return -1;}
+    if(p->fd>=0)close(p->fd);
+    p->fd=fd;return fd;
+}
+FC_API Portal *fc_portal_select(char *error,int capacity) {
+    Portal *p=g_new0(Portal,1);p->fd=-1;p->context=g_main_context_new();
+    g_main_context_push_thread_default(p->context);
+    GError *e=NULL;GVariant *r=NULL;
+    p->bus=g_bus_get_sync(G_BUS_TYPE_SESSION,NULL,&e);
+    if(!p->bus) {g_strlcpy(error,e->message,capacity);g_error_free(e);goto fail;}
+    GVariantBuilder b;char token[64],session[64];
+    g_snprintf(session,sizeof(session),"fc_%u",g_random_int());
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());
+    g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));option(&b,"session_handle_token",g_variant_new_string(session));
+    r=request(p,RD,"CreateSession",g_variant_new("(a{sv})",&b),token,error,capacity);if(!r)goto fail;
+    g_variant_lookup(r,"session_handle","s",&p->session);g_variant_unref(r);r=NULL;
+    if(!p->session){g_strlcpy(error,"Portal did not return a session",capacity);goto fail;}
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));option(&b,"types",g_variant_new_uint32(3));
+    r=request(p,RD,"SelectDevices",g_variant_new("(oa{sv})",p->session,&b),token,error,capacity);if(!r)goto fail;g_variant_unref(r);
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));option(&b,"types",g_variant_new_uint32(3));
+    option(&b,"multiple",g_variant_new_boolean(FALSE));option(&b,"cursor_mode",g_variant_new_uint32(2));
+    r=request(p,SC,"SelectSources",g_variant_new("(oa{sv})",p->session,&b),token,error,capacity);if(!r)goto fail;g_variant_unref(r);
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));
+    r=request(p,RD,"Start",g_variant_new("(osa{sv})",p->session,"",&b),token,error,capacity);if(!r)goto fail;
+    g_variant_lookup(r,"devices","u",&p->devices);
+    GVariant *streams=g_variant_lookup_value(r,"streams",G_VARIANT_TYPE("a(ua{sv})"));
+    if(streams && g_variant_n_children(streams)>0) {
+        GVariant *entry=g_variant_get_child_value(streams,0),*props=NULL;
+        g_variant_get(entry,"(u@a{sv})",&p->node,&props);
+        g_variant_lookup(props,"size","(ii)",&p->width,&p->height);
+        g_variant_unref(props);g_variant_unref(entry);
+    }
+    if(streams)g_variant_unref(streams);g_variant_unref(r);r=NULL;
+    if(!p->node || p->width<=0 || p->height<=0) {g_strlcpy(error,"Portal returned no stream size",capacity);goto fail;}
+    if(fc_portal_refresh(p,error,capacity)<0)goto fail;
+    g_main_context_pop_thread_default(p->context);return p;
+fail:
+    g_main_context_pop_thread_default(p->context);fc_portal_close(p);return NULL;
+}
+FC_API int fc_portal_value(Portal *p,int field) {
+    switch(field){case 0:return p->fd;case 1:return (int)p->node;case 2:return p->width;
+                 case 3:return p->height;case 4:return (int)p->devices;default:return 0;}
+}
+FC_API int fc_portal_input(Portal *p,int type,double x,double y,int code,int down) {
+    const char *method=NULL;GVariant *args=NULL;GVariantBuilder b;g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    if(type==0 && (p->devices&2)) {
+        method="NotifyPointerMotionAbsolute";args=g_variant_new("(oa{sv}udd)",p->session,&b,p->node,x,y);
+    } else if(type==1 && (p->devices&2)) {
+        method="NotifyPointerButton";args=g_variant_new("(oa{sv}iu)",p->session,&b,code,(guint)down);
+    } else if(type==2 && (p->devices&2)) {
+        method="NotifyPointerAxis";args=g_variant_new("(oa{sv}dd)",p->session,&b,x,y);
+    } else if(type==3 && (p->devices&1)) {
+        method="NotifyKeyboardKeysym";args=g_variant_new("(oa{sv}iu)",p->session,&b,code,(guint)down);
+    } else return 0;
+    GError *e=NULL;GVariant *r=g_dbus_connection_call_sync(p->bus,BUS,PATH,RD,method,args,NULL,
+                                                       G_DBUS_CALL_FLAGS_NONE,2000,NULL,&e);
+    if(e)g_error_free(e);if(r)g_variant_unref(r);return r!=NULL;
+}
+#endif
@@ -92,8 +92,11 @@ app bundles `ui/`, `scripts/`, `frame/android/`, Valve's `frame/devkit-utils/` a
 ([python-build-standalone](https://github.com/astral-sh/python-build-standalone))
 and `adb` from Google's platform-tools, so there's nothing else to install. It
 also bundles curl's copy of Mozilla's CA list, because Python on Windows only
-trusts root certificates already in the Windows store.
-`app/build/fetch-deps.js` downloads both, pinned by SHA-256.
+trusts root certificates already in the Windows store. And it bundles KDE
+Connect for the Frame (Valve's arm64 build and five libraries, 3.6 MB,
+[`frame/kdeconnect`](../frame/kdeconnect/NOTICE.md)), which it copies to the
+Frame for the keyboard and trackpad.
+`app/build/fetch-deps.js` downloads all of it, pinned by SHA-256.

 The server is Python stdlib only and listens on 127.0.0.1. It rejects requests
 with a non-local `Host` header, and any `/api/` request without a custom
@@ -38,6 +38,9 @@ Lepton (Android 11, podman container "lepton-dev") ← its own panel, app 305600
 | SteamVR settings live in `~/.config/openvr/config/steamvr.vrsettings`, not under `~/.local/share/Steam/config/`. `dashboard.lastAccessedExternalOverlayKey` names the last panel you used. | Settings tweaks |
 | The Steam client's journal (`journalctl --user`) carries SteamVR system UI lines such as `[Overlays] Created: …` and `vroverlay_uid<appid>`. It's the quickest way to see panels come and go. | Debugging |
 | Present: `rsync`, `flatpak`, `python3`, `git`, `qdbus6`, `xrdp`, `xprop`, `xwininfo`, `xterm`, `konsole`, `dolphin`, `gamescopectl`. Missing: `wl-copy`, `xclip`, `xsel`, `kdeconnect-cli`, `tailscale` (installable in `~`, see below), `krfb`, `wayvnc`. | Script design |
+| **SteamOS updates arrive on their own.** The Frame went from 0.3.0 (build 20260922.6101926) to **0.4.1, build 20260925.6191901**, between 2026-09-27 and 2026-09-28 with no action from us; `~` (keys, user Flatpaks, `~/.local/share`) survived. **Verified 2026-09-28.** | Keep changes in `~` |
+| **Valve's package repository has more than the image.** `pacman -Si` / `pacman -Sp` work as `steamos` without root and list Valve's own builds, such as `kdeconnect` 24.02.2 and `python-evdev` 1.7.0 in `extra`. Unpacking those packages into `~` runs them without touching the read-only root. The repository URLs say not to share them, so never write them down; Valve also publishes each build's source package there (`sources/packages/`), which is how Frame Control got the complete source for the KDE Connect it ships. **Verified 2026-09-28**, SteamOS 0.4.1. | [streaming.md](streaming.md#input-type-and-point-in-the-frame-from-the-mac-or-iphone) |
+| **gamescope runs two Xwayland displays.** `:0` holds Steam's VR bar and menus (`valve.steam.gamepadui.*`) and ignores XTest pointer motion; `:1` holds apps such as Chromium and takes it. There's also a libei socket, `/run/user/1000/gamescope-0-ei`. **Verified 2026-09-28**, SteamOS 0.4.1. | Keyboard and trackpad |
 | Flathub is a **system** remote. `--user` installs over SSH work and show up in the desktop menu. | `install-apps.sh` |
 | `/` is 10 GB and read-only. `/home` is 929 GB. | Where to put things |
 | Clipboard: Klipper over the nested D-Bus bus (`qdbus6 org.kde.klipper …`). | `paste-to-frame.sh` |
@@ -12,7 +12,8 @@ An iPhone can't run Python or `ssh`, but the Frame can. So the app:
 1. connects to the Frame over SSH itself (the [Citadel](https://github.com/orlandos-nl/Citadel)
   Swift SSH library), with its own ed25519 key from the Keychain;
 2. copies Frame Control's server and helpers (`ios/scripts/make_frame_bundle.py`,
-   under 1 MB) to `~/.cache/frame-control/<version>` on the Frame, once per version;
+   4.6 MB, 3.6 MB of it the KDE Connect the keyboard and trackpad use) to
+   `~/.cache/frame-control/<version>` on the Frame, once per version;
 3. starts `ui/server.py` there with `FRAME_LOCAL=1`. It listens only on the
   Frame's own 127.0.0.1, and it stops when the phone disconnects (`--exit-on-eof`);
 4. tunnels to it through the SSH session and shows the same page as the desktop
@@ -102,10 +102,11 @@ Still open: 4, 6, 7, 12–15, 16 (off-LAN and after a reboot), 17–21.
 20. **F-Droid 2.0** (Compose 1.12): does it run? If so, the catalogue can
    install it instead of 1.17.2.

-21. **DeoVR local files:** does DeoVR's file browser show `Videos → VR`
-    (the symlink from `push-vr-video.sh`) or `Z:\home\steamos\Videos\VR`, and do
-    the colour-coded test clips play in 3D (red left eye, cyan right) for both
-    H.264 and H.265? Does the DLNA browser find a server on the Mac?
+21. **Owned media player:** worn-headset comfort, audio quality/lip sync, long
+    movies and 4K/8K decoding remain to check. Native spatial-photo container
+    extraction, large/immersive splats and existing-panel theatre docking need
+    further implementation. Remote eye isolation, short hardware decode and
+    owned-overlay cleanup are verified; see [vr-video.md](vr-video.md).

 ## Verified 2026-09-27

@@ -123,3 +123,12 @@ a limit on the number of floating panels.
  keyboard) or virtual desktops arrange windows within the 1280×800 rectangle.
 - **Windows-only overlay tools** (Desktop+, OVR Toolkit, OVRdrop) do this for a
  PC's desktop in SteamVR. They don't run on the Frame's standalone Linux.
+
+## Frame Control's media theatre
+
+[The owned media player](vr-video.md) can show its video or stereo image on a
+larger, head-relative screen with its own dark surround. **Verified remotely
+2026-09-28**, SteamOS 0.4.1 / BUILD_ID 20260925.6191901: screen, eye isolation,
+surround and cleanup. It does not alter panel docking or global settings.
+Its `Overlay` RGBA rendering hook is available to stream producers; applying
+SteamVR theatre docking to existing Mac/PC panels is still unverified here.
@@ -0,0 +1,199 @@
+# PC in the headset
+
+Windows and Linux hosts use **Tools → PC in the headset**. The host shares a
+window or screen, and the existing Frame viewer makes it a SteamVR panel.
+Move it with the dashboard's Float in World, Move and Size controls.
+
+**Inferred / not yet verified on a desktop host:** the Windows and Linux
+capture and input paths below. This work was developed on a Mac with no
+Windows or Linux desktop VM. A native build or test-pattern test in CI does
+not establish that desktop capture, a permission dialog, hardware encoding
+or laser input works. Keep this feature in the draft/testing stage until
+those paths have been tried on real hosts.
+
+## Own implementation, platform APIs and bundled libraries
+
+Frame Control owns the host agent, input routing, authentication, streaming
+protocol, panel launcher and adaptation. It does not launch or require
+Sunshine, OBS or another desktop-streaming app. GStreamer and its codec
+plugins are ordinary libraries bundled with the Windows and Linux app;
+users do not install a GStreamer application. The shared library build keeps
+license texts and package provenance alongside the libraries. Linux also
+bundles the PipeWire client’s dynamically loaded SPA/protocol modules and a
+private client configuration; it does not change the desktop’s configuration.
+
+First-party alternatives considered (**documented**): Valve Remote Play
+streams a game/desktop, rather than providing this per-window panel protocol;
+Windows Remote Desktop opens a remote session; Linux's desktop portal is the
+consent mechanism for sharing the current desktop. The chosen paths are:
+
+| Host | Capture | Encoding | Input |
+|---|---|---|---|
+| Windows | Windows.Graphics.Capture, through `d3d11screencapturesrc capture-api=wgc`; HWND or HMONITOR | Hardware Media Foundation (`mfh264enc`), low latency, no B-frames | `SendInput`, with source bounds and per-monitor DPI awareness |
+| Linux | RemoteDesktop + ScreenCast portal, then the returned PipeWire fd/node | VA-API (`vah264enc`) where registered; x264 otherwise | RemoteDesktop portal notifications, using only granted pointer/keyboard devices |
+
+API choices are **documented**, not device verification:
+[Windows capture](https://learn.microsoft.com/en-us/windows/uwp/audio-video-camera/screen-capture),
+[GStreamer WGC](https://gstreamer.freedesktop.org/documentation/d3d11/d3d11screencapturesrc.html),
+[Media Foundation encoder](https://gstreamer.freedesktop.org/documentation/mediafoundation/mfh264enc.html),
+[ScreenCast portal](https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.ScreenCast.html),
+[RemoteDesktop portal](https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.RemoteDesktop.html).
+
+Windows needs a WGC-capable Windows 10/11 desktop and an available hardware
+Media Foundation H.264 encoder. Elevated windows and the secure desktop
+cannot be driven by an ordinary Frame Control process. If Windows refuses
+to focus a selected window, input is refused rather than sent to the app
+covering it; bring the selected window forward, then Stop and Show again. Minimized/closed
+windows may stop producing frames. Protected content is not supported.
+
+On Linux, press **Choose a window or screen…** and approve the desktop's
+sharing dialog. Choose another source to add another panel. Stop releases
+that source's portal session; sharing it again asks for consent again.
+A desktop must implement both ScreenCast and RemoteDesktop for this path;
+a ScreenCast-only compositor cannot provide laser input through this API.
+Cancelling or denying a dialog is reported on the card. No portal permission
+is bypassed, and Frame Control does not open `/dev/uinput` or the unrestricted
+PipeWire daemon on the host.
+
+The host's own keyboard still works. Input from the viewer uses normalized
+picture coordinates, maps through the selected source's bounds, and releases
+held buttons/keys on blur, disconnect and Stop. Linux requires the pointer
+and keyboard grants. **Untested:** desktop-specific consent, mixed-DPI
+Windows input alignment, multi-monitor layouts, hardware encoder behavior,
+window resize/minimize, and non-US keyboard layouts.
+
+## Shared pieces
+
+- `ui/frame_macview.py` owns the SSH tunnel, reconnect supervision, quality
+  presets and panel launch for all hosts. `ui/frame_pcview.py` selects the PC
+  helper; `/api/macview` remains the compatible endpoint.
+- `ui/mac-view.html` is the one viewer. The 17-byte big-endian frame header,
+  Annex-B H.264/JPEG payloads, `hello`/`ack` reconnect handshake, clock sync,
+  `rx`/`fd` timing reports and input messages are unchanged.
+- `desktop/controller.c` is the rate controller shared by the Mac Swift
+  binding and the PC Python binding. Capture is gated **before** encoding;
+  encoded reference frames are never discarded. A bounded raw-frame queue
+  keeps the newest picture, including the last update of an idle window,
+  until the gate opens. A native one-frame-source test covers that case.
+  It keeps the Mac's bitrate demand protection and tier hysteresis.
+- PC records use the existing `Stats.swift` JSON schema, with bounded
+  4096-frame/512-input storage in `ui/frame_stream_stats.py`. The benchmark's
+  analysis, targets and network shaping are shared, not reimplemented.
+  Capture timestamps describe the native pipeline's source time; they do
+  not prove the time at which the host compositor displayed the pixels.
+- Mac virtual-display separation remains Mac-only. Windows WGC and the
+  Linux portal share the selected window directly.
+
+PC capture follows the shared frame-rate and resolution tiers. x264 updates
+bitrate while running. Hardware encoders are drained and reopened when the
+budget changes materially, at most once a second, because their live property
+support varies. Reopening starts a new keyframe and retains the consented
+portal session. **Untested:** hardware reconfiguration latency and whether a
+particular desktop permits reconnecting its PipeWire stream this way.
+
+## Build and measure
+
+Packaged Windows/Linux builds include `desktop/bundle/pc-host` and its shared
+libraries. Source checkouts build them with `python3 desktop/build.py` after
+installing GStreamer development packages (see the `PC host libraries` CI
+workflow). The feature reports a missing bundle; it does not download or
+install a streaming app on first use.
+
+The existing benchmark now accepts a PC host:
+
+```sh
+python3 scripts/macview-bench.py run --pc --scenario test --label pc-test
+# Linux: select a real source in the desktop's sharing dialog
+python3 scripts/macview-bench.py run --pc --scenario capture --source choose --label linux-window
+# Windows: use the HWND/monitor source ID shown by the host's /windows or /displays
+python3 scripts/macview-bench.py run --pc --scenario capture --source window:12345 --label windows-window
+```
+
+The synthetic PC pattern uses bundled x264 so headless CI can verify the
+wire protocol without claiming that a GPU was exercised. The `capture`
+scenario measures the selected real source without injecting input or
+assuming that it animates at 60 fps. Mac-only Chrome/virtual-display typing
+and scrolling automation is not run on PC hosts. Results retain the same
+latency stages and record `host_platform`, `pc_host` and `source`. CPU sampling
+on PC hosts is explicitly unavailable. `--net` and `--delay` still use the
+same bounded shaping relay, without administrator privileges.
+
+## Evidence
+
+- **Verified, Mac, 2026-09-28:** the final full unit/integration suite ran
+  183 tests successfully, including the real Mac helper's H.264, ticket, timing
+  and input-echo tests. The native PC test class was skipped locally because
+  its libraries were absent; the PC adapter and shared-controller tests passed.
+- **Verified, real Frame, 2026-09-28, BUILD_ID 20260925.6191901:** the base
+  helper's synthetic source created panel `valve.steam.desktopgame.2001639889`,
+  and the shared Chromium viewer decoded H.264. It recorded 286 frames over
+  the short probe, with a two-second summary of 19.5 fps shown and total
+  latency p50/p95 83/156.5 ms. This establishes the existing viewer/transport
+  route, not Windows/Linux capture, input or a latency target. The probe's
+  helper, tunnel and viewer were stopped afterward.
+- **Verified in CI:** native library builds and real x264 protocol tests passed
+  on Windows, Ubuntu x64 and Ubuntu ARM64 in
+  [run 36422214445](https://github.com/saphid/frame-control/actions/runs/36422214445).
+  All four installer builds passed in
+  [run 36422214425](https://github.com/saphid/frame-control/actions/runs/36422214425).
+  These are build/synthetic tests, not desktop-host verification. No VM was used.
+- **Verified, real Frame, same build/date:** the ARM64 PC agent and its
+  bundled libraries ran from a temporary user directory, using x264's moving
+  test pattern. Traffic travelled Frame → Mac SSH relay → Frame viewer.
+  The shared bench recorded 351 drawn frames, content p50/p95 15.1/80.3 ms,
+  and 34.8 fps. The frame-rate and late-frame targets failed. This checks the
+  new agent and real viewer together; it is not a representative PC link.
+  The helper exited 0, its viewer/tunnels stopped, and its directory was removed.
+  [Raw benchmark result](../bench/results/2026-09-28-c5fc552-dirty-pc-agent-frame-arm64-hairpin.json).
+  This first probe's input echo measured message receipt to the next capture,
+  not a visible pattern response; later builds make test clicks change its color.
+- **Verified, Mac:** all 600 states in a 60-second congestion/recovery trace
+  matched the original Swift controller. `tests/test_pc_controller.py` retains
+  the original trace digest as a regression check.
+- **Verified, real Frame, agent at `cd20243`:** the repeated synthetic
+  probe drew 400 frames at 39.3 fps, content p50/p95 15.1/28.6 ms, and synthetic
+  input-to-drawn p50 76.6 ms. Test clicks now change the pattern color before
+  injection is timestamped. The frame-rate/late-frame targets still failed;
+  this remains a Frame-hosted x264 test through a Mac relay, not a desktop or
+  physical-laser measurement. Helper exit 0 and cleanup succeeded.
+  [Latest device probe result](../bench/results/2026-09-28-cd20243-pc-agent-frame-arm64-final.json).
+- **Untested:** real Windows WGC → Media Foundation → Frame; real Linux
+  portal → PipeWire → VA-API/x264 → Frame; physical laser input on either.
+  No benchmark numbers for those desktop paths are claimed.
+
+## Independent review availability
+
+A direct read-only review was attempted with
+`devin -p --model swe-2-max --permission-mode auto --prompt-file …`. The first
+attempt exited 0 after rejecting a tool that needed interactive permission;
+it did not inspect the diff. A full inline-diff attempt returned no output
+for 15 minutes and was terminated (shell exit 143). A smaller inline native
+code review returned no output within 300 seconds (process exit -15).
+SWE-2 Max was requested; no completed review or findings were received, so
+independent review is **unverified**, not a passed check. The PR remains draft.
+
+## Device follow-up, 2026-09-29
+
+**Verified, read-only, SteamOS BUILD_ID 20260925.6191901:** the Frame was
+reachable, charging (44% initially, 63% at the end), and SteamVR reported
+activity level 3 (standby). No Plasma desktop was running. Introspection of
+the active `org.freedesktop.portal.Desktop` service exposed ScreenCast with
+source types 3, but no RemoteDesktop interface. **Inferred:** this gamescope
+session cannot provide this feature's required consented input path; a
+ScreenCast-only session is insufficient.
+
+**Blocked, not a device execution result:** the shared `/tmp/frame-test.lock`
+was held by another thread. Ten lock-acquisition attempts over five minutes
+all failed, after earlier preparation-time attempts also found it occupied.
+The current `a992f6d` ARM64 CI bundle was downloaded to the Mac, but nothing
+was installed, launched or stopped on the Frame. No new screenshots or
+current-revision device timings were obtained. The lock was not removed and
+no global settings were changed. The earlier synthetic results above remain
+valid only for their named revisions; standby visibility, physical laser
+input and worn-headset performance remain unverified.
+
+**Verified, Mac:** a fresh full suite ran 309 tests successfully, with one
+native-PC class skipped. Current-revision CI passed
+[native hosts](https://github.com/saphid/frame-control/actions/runs/36504546909),
+[installers](https://github.com/saphid/frame-control/actions/runs/36504546800)
+and [general checks](https://github.com/saphid/frame-control/actions/runs/36504546887).
@@ -99,7 +99,7 @@ controls to place each panel. See [docs/panels.md](panels.md).
 | `scripts/frame-ui.sh` | Mac | Start the Frame Control web UI (`ui/server.py`) and open it (**verified**) |
 | `scripts/apk-catalog.sh` | Mac | Refresh the rated F-Droid catalogue that Frame Control's Android section shows (**verified**) |
 | `scripts/compat-db-backup.sh` | Mac | Maintainer-only: back up the shared compatibility database locally and to Google Drive (**verified**) |
-| `scripts/push-vr-video.sh` | Mac → Frame | Upload VR180/360 videos to `~/Videos/VR`, linked into DeoVR's Proton prefix; `--launch` starts DeoVR (**verified**: upload and link; in-headset playback of local files not yet checked). See [docs/vr-video.md](vr-video.md) |
+| `scripts/push-vr-video.sh` | Computer → Frame | Upload movies, stereo PNG/JPEG or small `.splat` files to `~/Videos/FrameControl`; `--launch` starts our OpenVR player, `--theatre` adds a larger screen and dark surround. No separate viewer. **Verified remotely**: decode, stereo output and cleanup; worn-headset checks remain. See [docs/vr-video.md](vr-video.md) |
 | `scripts/push.sh` | Mac → Frame | `rsync` files to `~/Downloads` (or a given path) on the Frame (**verified**) |
 | `scripts/serve-bootstrap.sh` | Mac | Fallback: serve `bootstrap-on-frame.sh` with your public key embedded |
 | `scripts/bootstrap-on-frame.sh` | Frame | Fallback: install the key and enable `sshd` |
@@ -45,8 +45,10 @@ flat 2D desktop streaming into a window on the Frame's Linux desktop.
 | Immersed / Virtual Desktop | Vendor apps | Immersed has a Mac agent but no known Frame client. Virtual Desktop's developer said he'd "try" to port it ([NewsBreak](https://www.newsbreak.com/news/4892834783961-virtual-desktop-dev-says-he-ll-try-to-bring-the-app-to-steam-frame)). | Not available as of 2026-09-25. Check again later. |
 | WiVRn / ALVR | VR streaming from a Linux or Windows PC | Irrelevant for a Mac host (no SteamVR/OpenXR runtime on macOS) | N/A |

-For **VR video files** (180°/360° stereo), don't stream the Mac's screen. Play
-them on the Frame in DeoVR instead: see [vr-video.md](vr-video.md).
+For **local movies and stereo photos**, Frame Control's own OpenVR player
+runs on the Frame; see [vr-video.md](vr-video.md). It currently renders a flat
+stereo screen. VR180/360 projection is not implemented; the same page records
+DeoVR only as an optional, independently installed alternative.

 ### Pre-seeding the Remmina profile (no typing in the headset)

@@ -113,18 +115,90 @@ capture it.

 ## Input: type and point in the Frame from the Mac or iPhone

-**Verified 2026-09-27** on the headset: `steamos` is in the `input` group and
-`/dev/uinput` is `crw-rw-r-- root input`, so **our own code can create a
-virtual keyboard and mouse without sudo**. The Frame has no `python-evdev`,
-`ydotool`, `wtype` or KDE Connect; `kwin_wayland` and `plasmashell` run only
-while the desktop panel is open in the headset.
+**Built: Home → Keyboard and trackpad**, in every version of Frame Control
+(Mac, Windows, Linux, iPhone and iPad), with nothing to install on the device
+you're holding. On a phone the panel is a trackpad (drag to move, tap to click,
+two fingers to scroll, two-finger tap to right-click) plus a text field that
+types on the Frame. On a computer, clicking the pad passes your mouse and
+keyboard through to the Frame until you press Esc (⌘ is sent as Ctrl on a Mac).

-| Option | Mac | iPhone | Notes |
+It goes through **KDE Connect**, the first-party route (KDE makes the Frame's
+desktop): Frame Control's server runs [`ui/frame_input_agent.py`](../ui/frame_input_agent.py)
+on the Frame, which talks KDE Connect's own LAN protocol to the Frame's
+`kdeconnectd` as if it were a phone. KDE Connect does the typing and clicking.
+
+**Verified 2026-09-28** (SteamOS 0.4.1, build 20260925.6191901):
+
+- KDE Connect isn't installed on the Frame, so **Frame Control ships it**:
+  Valve's own build for the Frame (`kdeconnect` 24.02.2-1 from its `extra`
+  repository) plus the five libraries it links that the Frame lacks
+  (`kcontacts`, `kpeople`, `modemmanager-qt`, `pulseaudio-qt`, `libfakekey`),
+  pinned by SHA-256 in [`frame/kdeconnect/packages.json`](../frame/kdeconnect/packages.json).
+  The builds download them from the
+  [kdeconnect-frame-24.02.2-1 release](https://github.com/saphid/frame-control/releases/tag/kdeconnect-frame-24.02.2-1)
+  (`app/build/fetch-deps.js`, `frame/kdeconnect/fetch.py`). The address of
+  Valve's repository for the Frame isn't to be shared, and Valve's public
+  aarch64 preview repository has KDE Connect 25.08, built against newer KDE
+  libraries than the Frame has.
+- On first use, the computer copies them to the Frame over the SSH connection
+  it already has. The iPhone app's bundle, already copied to the Frame, has
+  them too. The agent checks each SHA-256 and unpacks them into
+  `~/.local/share/frame-control/kdeconnect` (3.6 MB copied, 18 MB unpacked,
+  about 2 s). There's no internet download on the Frame, no root, and nothing
+  on the read-only system, so SteamOS updates leave it alone. A stamp there
+  (`root/.frame-control-packages`) records which build it is; a newer Frame
+  Control replaces it.
+- `pacman -Sp kdeconnect …` also pulls in ModemManager, libqmi, libmbim,
+  libqrtr-glib and ppp (packaging dependencies). `kdeconnectd` and its plugins
+  don't link any of them (checked with `ldd` against the six packages alone),
+  so Frame Control leaves them out.
+- Licences: the packages are GPL and LGPL; Frame Control stays MIT because it
+  only starts `kdeconnectd` and speaks its protocol. The notice, licence texts
+  and complete source are in [`frame/kdeconnect`](../frame/kdeconnect/NOTICE.md),
+  [`THIRD_PARTY_NOTICES.md`](../THIRD_PARTY_NOTICES.md) and the app's
+  **About and licences** (Tools).
+- It pairs by itself: the agent asks to pair and accepts on KDE Connect's side
+  over D-Bus (`qdbus6 … acceptPairing`). It keeps its identity in
+  `…/kdeconnect/bridge`, so later connections are already paired. (A pair
+  request to a device that's already paired makes KDE Connect unpair it, so
+  the agent only asks when it isn't paired.)
+- Protocol version 7: whoever opens the TCP connection sends its identity line
+  in plain text, then acts as the **TLS server** (KDE Connect's
+  `lanlinkprovider.cpp`). Remote input is `kdeconnect.mousepad.request` with
+  `dx`/`dy`, `singleclick`, `rightclick`, `singlehold`/`singlerelease`,
+  `scroll`, `key` (any text) or `specialKey` (1 Backspace … 14 Escape,
+  21–32 F1–F12) and modifier flags.
+- **KDE Connect runs only while something uses the keyboard and trackpad.**
+  Each device gets its own KDE Connect identity (KDE Connect keeps one
+  connection per device, so a shared one would make a phone and a computer
+  knock each other off). The last one to disconnect stops KDE Connect, so it
+  isn't left running, or discoverable on your network, afterwards.
+- KDE Connect 24.02 **hangs or crashes when asked to unpair a device that's
+  offline** (seen twice: once spinning at 100% CPU with D-Bus unresponsive,
+  once exiting). Frame Control never unpairs. If its copy stops answering, the
+  agent restarts it once (tested by freezing it with `kill -STOP`).
+- Moves from the iPhone app (Simulator) and the Mac's server moved the Frame's
+  X pointer by exactly the amount sent, including with the bundled packages
+  copied over SSH (2026-09-28).
+- gamescope runs **two Xwayland displays**. `:0` holds Steam's VR bar and menus
+  and ignores injected pointer motion; `:1` holds apps such as Chromium and
+  takes it. KDE Connect runs on `:1`, so it reaches apps, not Steam's own menus.
+  There's also a `gamescope-0-ei` (libei) socket.
+- **Not yet tested:** typing and clicking as seen in the headset, and whether
+  it reaches the KDE desktop panel (Plasma is its own session).
+- **Known limit:** keys and clicks typed while the link is reconnecting wait
+  and are sent once it's back, but anything sent in the moment the Wi-Fi
+  drops, before SSH notices, can be lost. Confirming every event would add a
+  round trip to each pointer move.
+
+Our own `uinput` keyboard and mouse would also work (`steamos` is in the
+`input` group and `/dev/uinput` is group-writable, verified 2026-09-27), and
+remains the fallback if the bundled KDE Connect ever stops working on a new SteamOS.
+
+| Other option | Mac | iPhone | Why not |
 |---|---|---|---|
-| **A uinput keyboard and mouse in Frame Control's server** | ✓ | ✓ | **Recommended.** The server opens `/dev/uinput` with `ctypes` (standard library only) and the page sends key and pointer events through the tunnel it already has. On the phone: a trackpad area (drag to move, tap to click, two fingers to scroll) and the iOS keyboard for typing. On the Mac: a "control the Frame" mode that captures the keyboard and pointer (Esc to release). Uinput devices look like real hardware to the kernel, so libinput, KWin and gamescope should take them; [frame-voice](https://github.com/DeeJanuz/frame-voice) already types into a Frame through a uinput keyboard. **Untested**: which surfaces in VR (desktop panel, SteamVR dashboard, games, Android apps in Lepton) accept the pointer. About a day or two of work |
-| **Bluetooth keyboard and mouse** | – | – | Real hardware paired in SteamOS settings. The iPhone can't pretend to be a Bluetooth keyboard: iOS won't advertise the HID service ([Apple forums](https://developer.apple.com/forums/thread/733916)) |
+| **Bluetooth keyboard and mouse** | – | – | Needs real hardware, paired in SteamOS settings. The iPhone can't pretend to be a Bluetooth keyboard: iOS won't advertise the HID service ([Apple forums](https://developer.apple.com/forums/thread/733916)) |
 | **Deskflow** (formerly Input Leap / Barrier) | ✓ | – | Moves the Mac's own mouse and keyboard onto the Frame's screen edge. Flathub has an aarch64 build ([Flathub](https://flathub.org/apps/org.deskflow.deskflow)); on Wayland it needs the InputCapture/libei portal, and only works while Plasma is running. No iPhone client |
-| **KDE Connect** | ~ | ✓ | Its iOS app has a remote touchpad and keyboard, but the Frame would need KDE Connect installed (not on Flathub; `pacman` on a read-only root). More moving parts than the uinput route |
 | **Remmina / Steam Link / RDP** | ✓ | – | Input only reaches the streamed session, not the headset's own apps |

 Other ways to get text in:
@@ -149,6 +149,31 @@ refuses ids with a hyphen (`missing/invalid arguments`), which the fake had
 accepted. The fake now refuses them the same way, and Frame Control makes ids
 Steam accepts.

+## PC panel host tests
+
+`tests/test_pcview.py` checks source-bound tickets, reconnect/Stop revocation,
+input release, source-coordinate mapping and use of the existing panel
+launcher. The `PC host libraries` workflow builds the bundled native adapter
+on Windows, Ubuntu x64 and Ubuntu ARM64, then runs a real x264 synthetic
+stream through the HTTP/WebSocket agent. `FRAME_PC_REQUIRE_NATIVE=1` makes a
+missing native bundle fail CI instead of skipping. These tests do not grant a
+portal dialog, capture a desktop, exercise a hardware encoder or validate
+laser alignment. See [PC host evidence](pc-in-headset.md#evidence).
+
+## Owned media player
+
+`tests/test_media.py` covers layout evidence and overrides, OU eye ordering,
+hardware-decoder command construction, malformed splats, stereo parallax and
+fake-Frame library/process ownership. `tests/e2e/test_media_transfer.py` checks the real
+HTTP/SSH upload and library listing without pretending the fake renders VR.
+Real decode timings and captured stereo output are recorded in
+[vr-video.md](vr-video.md). Generated media only; no external player required.
+
+**Verified 2026-09-28**, real Frame BUILD_ID 20260925.6191901: `~/.local`
+and `~/.local/share` are `steamos:steamos`, mode 0755. The fake supervisor
+sets those parent owners too; previously its root-created Steam manifests
+left the parents root-owned and incorrectly prevented user runtime installs.
+
 ## Agent interfaces

 `tests/test_agent.py` exercises MCP stdio, exact-action human approvals and the
@@ -0,0 +1,148 @@
+# VR APKs and Quest games in Lepton
+
+What it takes to run an immersive (OpenXR) Android app, including Meta Quest
+builds, on the Frame. Checked on SteamOS BUILD_ID 20260925.6191901, Lepton
+v2.8.14 (rootfs v2.8.11), SteamVR 2.18.1, on 2026-09-28, unless marked
+**inferred**.
+
+## How a VR APK reaches SteamVR (verified)
+
+- Lepton ships a standard Khronos system runtime manifest,
+  `/vendor/etc/openxr/1/active_runtime.json`, pointing at SteamVR's Android
+  client, `/data/steamvr/runtime/bin/androidarm64/vrclient.so`. That is the
+  host's `/opt/steamvr/bin/androidarm64/`, bind-mounted in.
+- An APK's own Khronos-style `libopenxr_loader.so` tries the runtime brokers
+  (`org.khronos.openxr.runtime_broker`, `…system_runtime_broker`), finds
+  neither, then falls back to that manifest. Nothing in the APK has to change
+  for discovery.
+- Install the APK without the flatscreen marker
+  (`python3 ui/frame_android.py install app.apk --vr`). The marker only
+  controls Lepton's 2D Android surface; the app itself has to start an
+  OpenXR session.
+- Lepton also loads Valve's `XR_APILAYER_VALVE_fdm_injection` layer from
+  `/vendor/etc/openxr/1/api_layers/implicit.d/`. Only layers in Valve's own
+  directories are picked up (`liblepton/vulkan_layers.sh`), so a third-party
+  layer has to ship inside the APK.
+
+**Open Brush 2.32.29, the Quest APK from its GitHub release (Unity OpenXR,
+Vulkan), works unmodified.** Its manifest already has `LAUNCHER` next to
+`com.oculus.intent.category.VR`. Unity asked for OpenXR 1.1, got
+`XR_ERROR_API_VERSION_UNSUPPORTED`, retried with 1.0 and succeeded. SteamVR
+took it as the scene app, created Touch, simple-controller and Frame-controller
+bindings, and the session reached `XR_SESSION_STATE_FOCUSED`. A headset capture
+(`ui/frame_vrshot.py`, after waking the compositor and closing the dashboard)
+showed a dark sky over a mountain horizon; nobody wore the headset to confirm
+it was Open Brush's scene or to try drawing.
+
+**Khronos `hello_xr` (Vulkan, 1.1.63 release APK) works unmodified:**
+`Instance RuntimeName=SteamVR/OpenXR RuntimeVersion=2.18.1`, 1728×1728
+swapchains per eye, session `IDLE → READY → SYNCHRONIZED` (the headset was
+not being worn, so it did not reach `FOCUSED`).
+
+## What SteamVR's Android runtime supports (verified, from `vrclient.so`)
+
+- **OpenXR 1.0 only.** An app requesting `XR_API_VERSION_1_0` works; one
+  requesting 1.1 (`XR_CURRENT_API_VERSION` in a 1.1 SDK) gets
+  `XR_ERROR_API_VERSION_UNSUPPORTED` from the runtime.
+- Extensions include `XR_KHR_opengl_es_enable`, `XR_KHR_vulkan_enable{,2}`,
+  `XR_KHR_composition_layer_depth`, `XR_KHR_locate_spaces`,
+  `XR_EXT_local_floor`, `XR_EXT_uuid`, `XR_EXT_palm_pose`,
+  `XR_EXT_hand_tracking`, `XR_EXT_eye_gaze_interaction`, and these Meta ones:
+  `XR_FB_display_refresh_rate`, `XR_FB_foveation{,_configuration,_vulkan}`,
+  `XR_FB_space_warp`, `XR_FB_swapchain_update_state`,
+  `XR_META_foveation_eye_tracked`, `XR_META_recommended_layer_resolution`,
+  `XR_META_vulkan_swapchain_create_info`, `XR_META_performance_metrics`.
+- Not present: `XR_FB_passthrough`, `XR_FB_hand_tracking_*`,
+  `XR_FB_spatial_entity*`, `XR_FB_color_space`,
+  `XR_KHR_android_thread_settings`, `XR_OCULUS_*`.
+- Interaction profiles include `oculus/touch_controller`, `khr/simple_controller`,
+  `valve/frame_controller` and the usual PC controllers. Valve documents Touch
+  bindings as a working fallback on the Frame controllers.
+
+## What stops a Quest APK (verified with Wolvic 1.9, `oculusvr` build)
+
+1. **Lepton won't start it.** Lepton's `apk-info-extractor` only accepts an
+   activity whose intent filter has `android.intent.action.MAIN` and
+   `android.intent.category.LAUNCHER`. Quest apps use
+   `com.oculus.intent.category.VR` instead, so Lepton logs `APP_ACTIVITY is
+   empty` and exits. There is no override. **Fix:** add the `LAUNCHER`
+   category to that intent filter and re-sign. After that, Wolvic started.
+2. **OpenXR 1.1.** Wolvic's Quest build then requested OpenXR 1.1 and aborted
+   on `XR_ERROR_API_VERSION_UNSUPPORTED`. Unity's OpenXR plugin retries with
+   1.0 (Open Brush, above), so this mostly bites native and non-Unity apps. **Fix (inferred):** an API layer
+   inside the APK that asks the runtime for 1.0 and maps the 1.1 core
+   functions to the extensions the runtime does have (`XR_KHR_locate_spaces`,
+   `XR_EXT_local_floor`, `XR_EXT_uuid`, `XR_EXT_palm_pose`).
+3. **Lepton's missing clipboard service** still applies to VR apps. The Godot
+   XR Tools demo's Quest build (itch.io) dies in `Godot.<init>` casting the
+   null clipboard service to `ClipboardManager`, before any OpenXR call. See
+   the clipboard table in [apks.md](apks.md).
+4. **Not yet reached:** required Meta-only extensions (each app differs),
+   swapchain formats (the Lynx Wolvic build needed `GL_SRGB8_ALPHA8`), and
+   Meta platform services.
+
+The loader was never the problem: Wolvic's Quest `libopenxr_loader.so` is a
+Khronos-style loader and found SteamVR through `/vendor`.
+
+## Out of scope
+
+- **Meta entitlement.** Apps that call the Oculus Platform SDK
+  (`libovrplatformloader.so`) to check the Quest store licence need Meta's
+  services. Frame Control won't work around that.
+- **VrApi-era apps** (`libvrapi.so`, before OpenXR) need an API translator,
+  not a patch.
+
+## Frame Control does this for you
+
+APK uploads and `python3 ui/frame_android.py install app.apk` detect VR
+manifest categories, Samsung's `vr_only` flag and the arm64 OpenXR loader.
+VR apps default to immersive mode without the flatscreen marker. The upload
+selector or CLI `--flat` / `--vr` overrides that choice. Compatibility notes
+identify legacy VrApi, Meta platform SDK and OpenXR libraries.
+
+Lepton only starts an `<activity>` whose MAIN intent filter has LAUNCHER; it
+ignores `<activity-alias>`, which is where Godot 4 exports put LAUNCHER. When no
+real activity qualifies, Frame Control adds LAUNCHER to the VR activity's MAIN
+filter, or to the activity the launcher alias targets, then repacks and v2-signs
+the APK locally before copying it; `meta.json` records
+`"patched": ["launcher"]`. Unchanged ZIP members retain their compressed
+bytes; stored libraries are aligned to 16 KiB. The RSA signing identity lives
+in Frame Control's per-user app-data directory as `apk-signing-key.json`
+(mode 0600). Keep this key to preserve the signer on subsequent patched
+updates. A re-signed APK cannot update an installation signed by its original
+publisher; Android also treats it as a different signer for signature checks.
+
+VR apps with an arm64 OpenXR loader also get the OpenXR compatibility layer
+([frame/openxr-compat](../frame/openxr-compat/README.md)): an implicit API
+layer in the APK's `assets/openxr/1/api_layers/implicit.d/`, which the app's
+own loader picks up next to Valve's layer. It asks SteamVR for OpenXR 1.0 when
+the app wants 1.1 and enables the extensions that became 1.1 core; maps
+`xrLocateSpaces` to `xrLocateSpacesKHR` and `grip_surface` to `palm_ext`; drops
+1.1 controller profiles SteamVR doesn't know; stubs
+`XR_KHR_android_thread_settings` and `XR_OCULUS_android_session_state_enable`;
+and keeps the current refresh rate when SteamVR refuses a requested one.
+`meta.json` records `"patched": ["openxr-compat"]`. Skip it with
+`install … --no-xr-compat`. Its decisions go to logcat under `FrameXrCompat`.
+
+Verified on the headset (2026-09-28):
+
+- **Wolvic 1.9, Quest build**, installed as downloaded: Frame Control added
+  `LAUNCHER` and the layer. The layer turned OpenXR 1.1.48 into 1.0.63, the
+  instance and session were created, and a 144 Hz refresh request that SteamVR
+  refused was kept at the current rate. The session reached `SYNCHRONIZED`;
+  then Wolvic's Gecko engine crashed (null SIGSEGV on its Gecko thread, the
+  same crash its Lynx build has), which is Wolvic's, not OpenXR's.
+- **Open Brush, Quest build**, with the layer: 1.1.54 → 1.0.63, the thread
+  settings stub in use, `bytedance/pico4_controller` bindings dropped, and the
+  session reached `FOCUSED`, the same as without the layer.
+
+Inspect or prepare an APK without contacting the headset:
+
+```sh
+python3 ui/frame_android.py info app.apk
+python3 ui/frame_android.py patch app.apk patched.apk
+python3 ui/frame_android.py patch app.apk patched.apk --add assets/openxr/1/api_layers/implicit.d/X.json=X.json --add lib/arm64-v8a/libX.so=libX.so
+```
+
+The patch fixes Lepton's launch-category requirement. It does not supply an
+OpenXR 1.1 translation layer, Meta services or a VrApi implementation.
@@ -1,81 +1,148 @@
-# Watching VR video (180°/360°) on the Frame
+# Movies, stereo photos and splats

-The confidence labels are the same as in [ssh.md](ssh.md). Everything here
-was checked on SteamOS 0.3.0, build 20260922.6101926.
+Frame Control has its own Frame-side OpenVR player. It uses SteamOS's ffmpeg
+and V4L2 hardware decoder, Python and SteamVR. **No separate player or viewer
+is required.** Chromium and immersive WebXR are not in this playback path.

-## The short version
+## Use it

-1. Install **DeoVR Video Player** from Steam (free, app 837380) and start it once
-   in the headset. That creates its Proton prefix.
-2. On the Mac: `scripts/push-vr-video.sh --launch ~/Movies/beach_180_LR.mp4`
-3. In the headset, open DeoVR's local file browser → **Videos → VR** and
-   pick the file.
+In **Tools → Media in the headset**, send a file, choose its layout and press
+**Play**. **Theatre** gives it a larger screen and an 85% black surround.
+**Stop** removes both. Refresh reads the library and the player's state.
+The screen follows your head; it isn't a saved world-space panel.

-## Why DeoVR
-
-The Frame's Chromium can't play VR video in 3D. It has no immersive WebXR
-([how-the-frame-works.md](how-the-frame-works.md)). DeoVR's Windows build
-runs under Proton ARM64 + FEX as a real SteamVR app. **Verified 2026-09-25:**
-it found the Steam Frame headset and controller over OpenVR, and decoded
-7680×3840 and 8192×4096 H.265 VR180 side-by-side streams through AVPro's
-hardware Media Foundation path, mapped onto a 180° dome or fisheye mesh.
-
-Known quirks (verified):
-
- The first launch takes about 45 s while it compiles shaders.
- Grid thumbnails stay blank. Unity's own video player, which DeoVR uses for
-  previews, fails with `0xc00d36bb` under Proton. Full playback uses AVPro
-  and isn't affected.
- The in-app store and web content are separate from local files. You don't
-  need an account to play your own files.
-
-## Getting files onto the headset
-
-`scripts/push-vr-video.sh` copies files with `rsync --partial`, so an
-interrupted upload resumes. They go to `~/Videos/VR` on the Frame (`/home`
-has about 860 GB free). The script also links that folder into DeoVR's prefix
-as `C:\users\steamuser\Videos\VR`. It's reachable at
-`Z:\home\steamos\Videos\VR` as well. **Verified** that the upload and link
-work. **Not yet checked** whether DeoVR's file browser lands there
-(open question 21).
-
-Speed: a test upload over Wi-Fi ran at about 3–5 MB/s (verified 2026-09-25,
-one sample). At that rate an 8K file of several GB takes tens of minutes, so
-start big uploads before you put the headset on.
-
-## Naming files so they play correctly
-
-DeoVR guesses the projection from the file name. Its binary contains the tags
-`_180`, `_360`, `_fisheye`, `_fisheye190`, `_mkx200`, `_vrca220` and `_rf52`
-(verified). For stereo layout, the common DeoVR convention is `_LR`/`_SBS`
-(side by side) and `_TB` (top/bottom) (inferred). If a video looks wrong
-(doubled, warped, or flat), change the projection and stereo mode in DeoVR's
-player menu.
-
-Examples: `trip_180_LR.mp4`, `concert_360_TB.mp4`, `hike_fisheye190_LR.mp4`.
-
-Codecs: H.265 at 8K played (verified, streamed). Local H.264 and H.265
-files haven't been played yet. The test clips below cover that.
-
-## Test clips
-
-The script doesn't include these. To check a setup, make two 20 s clips:
-3840×1920, 180° side by side, with the left eye tinted red and the right eye
-cyan. In the headset each eye should see only its own colour. A single mixed
-colour means the stereo split is wrong.
+The command-line route uses the same player:

 ```sh
-ffmpeg -f lavfi -i testsrc2=size=1920x1920:rate=30:duration=20 \
-  -filter_complex "[0:v]split[a][b];[a]colorchannelmixer=rr=1:gg=0.3:bb=0.3[l];[b]colorchannelmixer=rr=0.3:gg=1:bb=1[r];[l][r]hstack" \
-  -c:v libx264 -pix_fmt yuv420p -b:v 20M frame-test_180_LR_h264.mp4
-scripts/push-vr-video.sh frame-test_180_LR_h264.mp4
+scripts/push-vr-video.sh --launch --theatre ~/Movies/film_SBS.mp4
+scripts/push-vr-video.sh --launch --layout ou ~/Pictures/stereo.png
+scripts/push-vr-video.sh --launch capture.splat
+scripts/push-vr-video.sh --list
+scripts/push-vr-video.sh --stop
 ```

-## Streaming from the Mac instead of copying (untested)
+Uploads live in `~/Videos/FrameControl/<id>/` on the Frame. Each upload gets
+its own directory, so sending another file with the same name doesn't replace
+it. The UI's existing upload limit is 8 GiB. Transfers use the app's rsync/scp
+path; resumable large uploads are not implemented here yet. Existing
+`~/Videos/VR` files and Proton prefixes are left alone. The script no longer
+launches DeoVR, links a Proton prefix, or accepts directories.

-DeoVR has a DLNA browser (the binary contains `Searching for DLNA
-devices...` and a UPnP ContentDirectory client). A DLNA server on the Mac
-should therefore appear in DeoVR without copying anything, for example
-`brew install rclone` then `rclone serve dlna ~/Movies/VR`. This is **inferred**, not
-tried. 8K VR video needs roughly 50–100 Mbit/s sustained, and the Wi-Fi
-sample above (about 30–40 Mbit/s) suggests copying first is the safer default.
+| Media | Supported preview |
+|---|---|
+| Movies | H.264 / H.265, mono or left-first SBS / top-first OU; audio through the Frame's PulseAudio-compatible server |
+| Stereo photos | PNG / JPEG containing both eyes, SBS or OU |
+| Gaussian splats | Common 32-byte `.splat` records, 1–20,000 Gaussians; a stationary stereo preview |
+
+Auto layout reads delimited filename tags: `_SBS`, `_HSBS`, `_LR`, `_OU`,
+`_TB`, `_HOU`, `_HTB`, `_FSBS`, `_FOU`, `_FTB`. SBS/OU without `F` means
+half-resolution packing. Full packing preserves each eye's original aspect.
+It also accepts FFmpeg's `stereo_mode` metadata (`left_right`, `top_bottom`,
+`mono`); left/right and top/bottom metadata are treated as full packing.
+Choose an explicit layout if that assumption doesn't match the file.
+Unknown or conflicting tags ask for a choice, rather than silently flattening
+stereo. The explicit selector always wins. Layout is not guessed from resolution.
+
+## What was verified
+
+**Verified remotely, 2026-09-28:** SteamOS 0.4.1, BUILD_ID
+`20260925.6191901`, SteamVR 2.18.1. Nobody wore the headset for these checks.
+All test media were generated by us. No paid content or DRM was involved.
+
+- Stock `ffmpeg` `h264_v4l2m2m` decoded 150 frames of our 1920×1080 H.264
+  test in 0.128 s (decode only); converting all frames to RGBA took 0.242 s.
+- Our ffmpeg → Python → OpenVR path submitted all 150 frames and exited 0.
+  The 1280×720 prototype took 4.775 s; the full 1920×1080 player took
+  4.618 s. These are wall times, not in-headset frame-rate measurements.
+  Finishing a 5 s clip early showed those probes weren't paced, so the final
+  player paces output at 30 fps: all 150 frames then completed in **5.025 s**.
+- The H.265 hardware decoder also completed the generated 1080p clip
+  (60 frames, exit 0); this is a short compatibility check, not a 4K/8K benchmark.
+- Our actual player, launched through Frame Control's media API, displayed
+  SBS and OU photos with red only in the left-eye capture and cyan only in
+  the right. OpenVR's `SideBySide_Parallel` flag separates the eyes; we
+  rearrange OU rows ourselves.
+- A generated 48-Gaussian `.splat` rendered in our own CPU renderer and appeared
+  in both eyes with separate perspective projections.
+- Theatre's owned dark surround and screen appeared in captures. Steam's
+  dashboard remained available over them. Stop removed the owned overlays
+  and ended the dedicated user service. No global SteamVR setting was changed.
+- A generated H.264/AAC clip reached the Pulse audio output and completed
+  all 100 video frames with exit 0. This proves the output path, not audible
+  quality or lip sync.
+
+![Frame Control SBS eye-isolation proof: red left, cyan right](img/media-sbs-proof.png)
+
+![Our Gaussian-splat stereo preview on the Frame](img/media-splat-proof.png)
+
+**Verified failed route:** GStreamer 1.24.2's `playbin` selected
+`v4l2h264dec`, delivered the first RGBA sample and then segfaulted (exit 139)
+in the basic appsink probe and the OpenVR probe. We do not ship that route.
+The ffmpeg path above completed instead.
+
+## Limits and blockers
+
+- **Not verified:** worn-headset comfort, sound quality/lip sync, long movies,
+  4K/8K decode, HDR, controller interaction or behaviour on other OS builds.
+  Output is bounded to 1920×1080 packed pixels before OU rearrangement.
+- **Not implemented:** pause, seeking, subtitles, playlists, right-eye-first
+  layouts, non-square pixel correction, VR180/360 projection and fisheye.
+  This preview is a flat stereo screen, not a dome player.
+- **Native spatial-photo blocker:** HEIC/HEIF/AVIF/MPO stereo-container
+  extraction isn't implemented in our viewer. We reject these rather than
+  displaying one image and calling it spatial. Export both eyes to PNG/JPEG
+  first. This is a current implementation gap, not a claim that the Frame
+  cannot support these containers.
+- **Large/immersive splat blocker:** the owned CPU rasterizer projects 3D
+  covariance into each eye and alpha-composites Gaussians, but renders a
+  fixed view at 320×240 per eye. It caps each Gaussian footprint at 32 pixels
+  and normalizes the scene to a two-metre box. Large scenes, PLY/SPZ, live
+  head-position parallax and navigation need a GPU scene renderer; this
+  version rejects files above 20,000 records. It is a stereo preview, not
+  an immersive walk-through.
+- A single player can run at a time. It stops at EOF, on **Stop**, or after
+  four hours in any case, so longer movies are cut off. Still images remain
+  until Stop or that timeout. There is no delete action yet: remove old
+  uploads from `~/Videos/FrameControl/` over SSH. The log is
+  `~/.local/share/frame-control/media/player.log` on the Frame.
+- **Panel/stream theatre remains outside this media slice:** SteamVR's
+  `vrcmd --dock-overlay` accepts `theater`, but docking an existing panel
+  and its dimming behaviour were not verified here. The shared headset had
+  workspace and stream tests active. We did not reposition their panels.
+  Integration with [#22](https://github.com/saphid/frame-control/issues/22)
+  and [#31](https://github.com/saphid/frame-control/issues/31) can use the
+  owned rendering hook below; no second stream/window manager is introduced.
+
+## Integration hook
+
+`POST /api/upload` with `X-Mode: media` and `X-Filename` sends a file and
+returns its `id`. `POST /api/media` accepts:
+
+```json
+{"action":"play","id":"<32 hex characters>/film_SBS.mp4","layout":"auto","theatre":true}
+```
+
+Other actions are `list`, `status`, `stop`. These use the normal `X-Frame-UI`
+guard. Play reports **starting**, not a claim that frames reached the headset;
+read status for `playing`, `ended`, `stopped` or `error`.
+The own-code files are copied to `~/.local/share/frame-control/media/` and
+run in the `frame-control-media.service` systemd user unit. Stop affects only
+that unit, including its decoder child.
+
+For a Frame-side stream producer, `frame_media_player.Overlay` exposes
+`create(key, width, distance, stereo=False, aspect=1, order=1)`,
+`pixels(handle, rgba, width, height)` and `close()`. Use an owned unique key,
+pass interleaved RGBA bytes (left/right halves for stereo) and always close in
+`finally`. `create` uses a head-relative transform; it does not move another
+app's panel. The player demonstrates a separate black surround overlay.
+`frame_media.stereo_pixels` converts OU to SBS. This is the narrow rendering
+hook for stream/workspace work; it doesn't capture or manage a Mac/PC stream.
+
+## Optional separate app
+
+You can independently install **DeoVR Video Player** (free Steam app 837380)
+if you prefer its VR180/360 features. Earlier tests on SteamOS 0.3.0,
+build `20260922.6101926` (2026-09-25), verified its OpenVR initialization and
+8K H.265 streamed VR180 decoding under Proton. Frame Control's media features
+neither install nor launch it, and do not depend on it. Its behaviour and
+file-naming conventions are not evidence about our player.
@@ -0,0 +1,26 @@
+Copyright (c) <year> <owner>. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
+     communicate, and translate a Work;
+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
@@ -0,0 +1,446 @@
+GNU LIBRARY GENERAL PUBLIC LICENSE
+
+Version 2, June 1991 Copyright (C) 1991 Free Software Foundation, Inc.
+
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+[This is the first released version of the library GPL. It is numbered 2 because
+it goes with version 2 of the ordinary GPL.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public Licenses are intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users.
+
+This license, the Library General Public License, applies to some specially
+designated Free Software Foundation software, and to any other libraries whose
+authors decide to use it. You can use it for your libraries, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the library, or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You must
+make sure that they, too, receive or can get the source code. If you link
+a program with the library, you must provide complete object files to the
+recipients so that they can relink them with the library, after making changes
+to the library and recompiling it. And you must show them these terms so they
+know their rights.
+
+Our method of protecting your rights has two steps: (1) copyright the library,
+and (2) offer you this license which gives you legal permission to copy, distribute
+and/or modify the library.
+
+Also, for each distributor's protection, we want to make certain that everyone
+understands that there is no warranty for this free library. If the library
+is modified by someone else and passed on, we want its recipients to know
+that what they have is not the original version, so that any problems introduced
+by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that companies distributing free software will individually
+obtain patent licenses, thus in effect transforming the program into proprietary
+software. To prevent this, we have made it clear that any patent must be licensed
+for everyone's free use or not licensed at all.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License, which was designed for utility programs. This license,
+the GNU Library General Public License, applies to certain designated libraries.
+This license is quite different from the ordinary one; be sure to read it
+in full, and don't assume that anything in it is the same as in the ordinary
+license.
+
+The reason we have a separate public license for some libraries is that they
+blur the distinction we usually make between modifying or adding to a program
+and simply using it. Linking a program with a library, without changing the
+library, is in some sense simply using the library, and is analogous to running
+a utility program or application program. However, in a textual and legal
+sense, the linked executable is a combined work, a derivative of the original
+library, and the ordinary General Public License treats it as such.
+
+Because of this blurred distinction, using the ordinary General Public License
+for libraries did not effectively promote software sharing, because most developers
+did not use the libraries. We concluded that weaker conditions might promote
+sharing better.
+
+However, unrestricted linking of non-free programs would deprive the users
+of those programs of all benefit from the free status of the libraries themselves.
+This Library General Public License is intended to permit developers of non-free
+programs to use free libraries, while preserving your freedom as a user of
+such programs to change the free libraries that are incorporated in them.
+(We have not seen how to achieve this as regards changes in header files,
+but we have achieved it as regards changes in the actual functions of the
+Library.) The hope is that this will lead to faster development of free libraries.
+
+The precise terms and conditions for copying, distribution and modification
+follow. Pay close attention to the difference between a "work based on the
+library" and a "work that uses the library". The former contains code derived
+from the library, while the latter only works together with the library.
+
+Note that it is possible for a library to be covered by the ordinary General
+Public License rather than by this special one.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License Agreement applies to any software library which contains a
+notice placed by the copyright holder or other authorized party saying it
+may be distributed under the terms of this Library General Public License
+(also called "this License"). Each licensee is addressed as "you".
+
+A "library" means a collection of software functions and/or data prepared
+so as to be conveniently linked with application programs (which use some
+of those functions and data) to form executables.
+
+The "Library", below, refers to any such software library or work which has
+been distributed under these terms. A "work based on the Library" means either
+the Library or any derivative work under copyright law: that is to say, a
+work containing the Library or a portion of it, either verbatim or with modifications
+and/or translated straightforwardly into another language. (Hereinafter, translation
+is included without limitation in the term "modification".)
+
+"Source code" for a work means the preferred form of the work for making modifications
+to it. For a library, complete source code means all the source code for all
+modules it contains, plus any associated interface definition files, plus
+the scripts used to control compilation and installation of the library.
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running a program
+using the Library is not restricted, and output from such a program is covered
+only if its contents constitute a work based on the Library (independent of
+the use of the Library in a tool for writing it). Whether that is true depends
+on what the Library does and what the program that uses the Library does.
+
+1. You may copy and distribute verbatim copies of the Library's complete source
+code as you receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice and disclaimer
+of warranty; keep intact all the notices that refer to this License and to
+the absence of any warranty; and distribute a copy of this License along with
+the Library.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Library or any portion of it,
+thus forming a work based on the Library, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+      a) The modified work must itself be a software library.
+
+b) You must cause the files modified to carry prominent notices stating that
+you changed the files and the date of any change.
+
+c) You must cause the whole of the work to be licensed at no charge to all
+third parties under the terms of this License.
+
+d) If a facility in the modified Library refers to a function or a table of
+data to be supplied by an application program that uses the facility, other
+than as an argument passed when the facility is invoked, then you must make
+a good faith effort to ensure that, in the event an application does not supply
+such function or table, the facility still operates, and performs whatever
+part of its purpose remains meaningful.
+
+(For example, a function in a library to compute square roots has a purpose
+that is entirely well-defined independent of the application. Therefore, Subsection
+2d requires that any application-supplied function or table used by this function
+must be optional: if the application does not supply it, the square root function
+must still compute square roots.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Library, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Library, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Library.
+
+In addition, mere aggregation of another work not based on the Library with
+the Library (or with a work based on the Library) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may opt to apply the terms of the ordinary GNU General Public License
+instead of this License to a given copy of the Library. To do this, you must
+alter all the notices that refer to this License, so that they refer to the
+ordinary GNU General Public License, version 2, instead of to this License.
+(If a newer version than version 2 of the ordinary GNU General Public License
+has appeared, then you can specify that version instead if you wish.) Do not
+make any other change in these notices.
+
+Once this change is made in a given copy, it is irreversible for that copy,
+so the ordinary GNU General Public License applies to all subsequent copies
+and derivative works made from that copy.
+
+This option is useful when you wish to copy part of the code of the Library
+into a program that is not a library.
+
+4. You may copy and distribute the Library (or a portion or derivative of
+it, under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you accompany it with the complete corresponding
+machine-readable source code, which must be distributed under the terms of
+Sections 1 and 2 above on a medium customarily used for software interchange.
+
+If distribution of object code is made by offering access to copy from a designated
+place, then offering equivalent access to copy the source code from the same
+place satisfies the requirement to distribute the source code, even though
+third parties are not compelled to copy the source along with the object code.
+
+5. A program that contains no derivative of any portion of the Library, but
+is designed to work with the Library by being compiled or linked with it,
+is called a "work that uses the Library". Such a work, in isolation, is not
+a derivative work of the Library, and therefore falls outside the scope of
+this License.
+
+However, linking a "work that uses the Library" with the Library creates an
+executable that is a derivative of the Library (because it contains portions
+of the Library), rather than a "work that uses the library". The executable
+is therefore covered by this License. Section 6 states terms for distribution
+of such executables.
+
+When a "work that uses the Library" uses material from a header file that
+is part of the Library, the object code for the work may be a derivative work
+of the Library even though the source code is not. Whether this is true is
+especially significant if the work can be linked without the Library, or if
+the work is itself a library. The threshold for this to be true is not precisely
+defined by law.
+
+If such an object file uses only numerical parameters, data structure layouts
+and accessors, and small macros and small inline functions (ten lines or less
+in length), then the use of the object file is unrestricted, regardless of
+whether it is legally a derivative work. (Executables containing this object
+code plus portions of the Library will still fall under Section 6.)
+
+Otherwise, if the work is a derivative of the Library, you may distribute
+the object code for the work under the terms of Section 6. Any executables
+containing that work also fall under Section 6, whether or not they are linked
+directly with the Library itself.
+
+6. As an exception to the Sections above, you may also compile or link a "work
+that uses the Library" with the Library to produce a work containing portions
+of the Library, and distribute that work under terms of your choice, provided
+that the terms permit modification of the work for the customer's own use
+and reverse engineering for debugging such modifications.
+
+You must give prominent notice with each copy of the work that the Library
+is used in it and that the Library and its use are covered by this License.
+You must supply a copy of this License. If the work during execution displays
+copyright notices, you must include the copyright notice for the Library among
+them, as well as a reference directing the user to the copy of this License.
+Also, you must do one of these things:
+
+a) Accompany the work with the complete corresponding machine-readable source
+code for the Library including whatever changes were used in the work (which
+must be distributed under Sections 1 and 2 above); and, if the work is an
+executable linked with the Library, with the complete machine-readable "work
+that uses the Library", as object code and/or source code, so that the user
+can modify the Library and then relink to produce a modified executable containing
+the modified Library. (It is understood that the user who changes the contents
+of definitions files in the Library will not necessarily be able to recompile
+the application to use the modified definitions.)
+
+b) Accompany the work with a written offer, valid for at least three years,
+to give the same user the materials specified in Subsection 6a, above, for
+a charge no more than the cost of performing this distribution.
+
+c) If distribution of the work is made by offering access to copy from a designated
+place, offer equivalent access to copy the above specified materials from
+the same place.
+
+d) Verify that the user has already received a copy of these materials or
+that you have already sent this user a copy.
+
+For an executable, the required form of the "work that uses the Library" must
+include any data and utility programs needed for reproducing the executable
+from it. However, as a special exception, the source code distributed need
+not include anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the operating
+system on which the executable runs, unless that component itself accompanies
+the executable.
+
+It may happen that this requirement contradicts the license restrictions of
+other proprietary libraries that do not normally accompany the operating system.
+Such a contradiction means you cannot use both them and the Library together
+in an executable that you distribute.
+
+7. You may place library facilities that are a work based on the Library side-by-side
+in a single library together with other library facilities not covered by
+this License, and distribute such a combined library, provided that the separate
+distribution of the work based on the Library and of the other library facilities
+is otherwise permitted, and provided that you do these two things:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities. This must be distributed
+under the terms of the Sections above.
+
+b) Give prominent notice with the combined library of the fact that part of
+it is a work based on the Library, and explaining where to find the accompanying
+uncombined form of the same work.
+
+8. You may not copy, modify, sublicense, link with, or distribute the Library
+except as expressly provided under this License. Any attempt otherwise to
+copy, modify, sublicense, link with, or distribute the Library is void, and
+will automatically terminate your rights under this License. However, parties
+who have received copies, or rights, from you under this License will not
+have their licenses terminated so long as such parties remain in full compliance.
+
+9. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Library or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Library
+(or any work based on the Library), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+10. Each time you redistribute the Library (or any work based on the Library),
+the recipient automatically receives a license from the original licensor
+to copy, distribute, link with or modify the Library subject to these terms
+and conditions. You may not impose any further restrictions on the recipients'
+exercise of the rights granted herein. You are not responsible for enforcing
+compliance by third parties to this License.
+
+11. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Library at all. For example, if a
+patent license would not permit royalty-free redistribution of the Library
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+12. If the distribution and/or use of the Library is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Library under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+13. The Free Software Foundation may publish revised and/or new versions of
+the Library General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Library does not specify a license version number, you may choose any version
+ever published by the Free Software Foundation.
+
+14. If you wish to incorporate parts of the Library into other free programs
+whose distribution conditions are incompatible with these, write to the author
+to ask for permission. For software which is copyrighted by the Free Software
+Foundation, write to the Free Software Foundation; we sometimes make exceptions
+for this. Our decision will be guided by the two goals of preserving the free
+status of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+   NO WARRANTY
+
+15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE LIBRARY
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Libraries
+
+If you develop a new library, and you want it to be of the greatest possible
+use to the public, we recommend making it free software that everyone can
+redistribute and change. You can do so by permitting redistribution under
+these terms (or, alternatively, under the terms of the ordinary General Public
+License).
+
+To apply these terms, attach the following notices to the library. It is safest
+to attach them to the start of each source file to most effectively convey
+the exclusion of warranty; and each file should have at least the "copyright"
+line and a pointer to where the full notice is found.
+
+one line to give the library's name and an idea of what it does.
+
+Copyright (C) year name of author
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Library General Public License as published by the Free
+Software Foundation; either version 2 of the License, or (at your option)
+any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
+details.
+
+You should have received a copy of the GNU Library General Public License
+along with this library; if not, write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the library, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in
+
+the library `Frob' (a library for tweaking knobs) written
+
+by James Random Hacker.
+
+signature of Ty Coon, 1 April 1990
+
+Ty Coon, President of Vice
+
+That's all there is to it!
@@ -0,0 +1,19 @@
+MIT License Copyright (c) <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -0,0 +1,49 @@
+UNICODE, INC. LICENSE AGREEMENT - DATA FILES AND SOFTWARE
+
+Unicode Data Files include all data files under the directories http://www.unicode.org/Public/,
+http://www.unicode.org/reports/, http://www.unicode.org/cldr/data/, http://source.icu-project.org/repos/icu/,
+http://www.unicode.org/ivd/data/, and http://www.unicode.org/utility/trac/browser/.
+
+Unicode Data Files do not include PDF online code charts under the directory
+http://www.unicode.org/Public/.
+
+Software includes any source code published in the Unicode Standard or under
+the directories http://www.unicode.org/Public/, http://www.unicode.org/reports/,
+http://www.unicode.org/cldr/data/, http://source.icu-project.org/repos/icu/,
+and http://www.unicode.org/utility/trac/browser/.
+
+NOTICE TO USER: Carefully read the following legal agreement. BY DOWNLOADING,
+INSTALLING, COPYING OR OTHERWISE USING UNICODE INC.'S DATA FILES ("DATA FILES"),
+AND/OR SOFTWARE ("SOFTWARE"), YOU UNEQUIVOCALLY ACCEPT, AND AGREE TO BE BOUND
+BY, ALL OF THE TERMS AND CONDITIONS OF THIS AGREEMENT. IF YOU DO NOT AGREE,
+DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE THE DATA FILES OR SOFTWARE.
+
+COPYRIGHT AND PERMISSION NOTICE Copyright © 1991-2016 Unicode, Inc. All rights
+reserved. Distributed under the Terms of Use in http://www.unicode.org/copyright.html.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of the Unicode data files and any associated documentation (the "Data Files")
+or Unicode software and any associated documentation (the "Software") to deal
+in the Data Files or Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, and/or sell copies
+of the Data Files or Software, and to permit persons to whom the Data Files
+or Software are furnished to do so, provided that either
+
+(a) this copyright and permission notice appear with all copies of the Data
+Files or Software, or
+
+   (b) this copyright and permission notice appear in associated Documentation.
+
+THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE
+BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES,
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder shall not
+be used in advertising or otherwise to promote the sale, use or other dealings
+in these Data Files or Software without prior written authorization of the
+copyright holder.
@@ -0,0 +1,208 @@
+Apache License
+
+Version 2.0, January 2004
+
+http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION,
+AND DISTRIBUTION
+
+   1. Definitions.
+
+      
+
+"License" shall mean the terms and conditions for use, reproduction, and distribution
+as defined by Sections 1 through 9 of this document.
+
+      
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+      
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct
+or indirect, to cause the direction or management of such entity, whether
+by contract or otherwise, or (ii) ownership of fifty percent (50%) or more
+of the outstanding shares, or (iii) beneficial ownership of such entity.
+
+      
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising permissions
+granted by this License.
+
+      
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+      
+
+"Object" form shall mean any form resulting from mechanical transformation
+or translation of a Source form, including but not limited to compiled object
+code, generated documentation, and conversions to other media types.
+
+      
+
+"Work" shall mean the work of authorship, whether in Source or Object form,
+made available under the License, as indicated by a copyright notice that
+is included in or attached to the work (an example is provided in the Appendix
+below).
+
+      
+
+"Derivative Works" shall mean any work, whether in Source or Object form,
+that is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative
+Works shall not include works that remain separable from, or merely link (or
+bind by name) to the interfaces of, the Work and Derivative Works thereof.
+
+      
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative
+Works thereof, that is intentionally submitted to Licensor for inclusion in
+the Work by the copyright owner or by an individual or Legal Entity authorized
+to submit on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication
+sent to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor
+for the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+      
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently incorporated
+within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of this
+License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable copyright license to reproduce, prepare
+Derivative Works of, publicly display, publicly perform, sublicense, and distribute
+the Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of this License,
+each Contributor hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section) patent
+license to make, have made, use, offer to sell, sell, import, and otherwise
+transfer the Work, where such license applies only to those patent claims
+licensable by such Contributor that are necessarily infringed by their Contribution(s)
+alone or by combination of their Contribution(s) with the Work to which such
+Contribution(s) was submitted. If You institute patent litigation against
+any entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that the Work or a Contribution incorporated within the Work constitutes direct
+or contributory patent infringement, then any patent licenses granted to You
+under this License for that Work shall terminate as of the date such litigation
+is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the Work or
+Derivative Works thereof in any medium, with or without modifications, and
+in Source or Object form, provided that You meet the following conditions:
+
+(a) You must give any other recipients of the Work or Derivative Works a copy
+of this License; and
+
+(b) You must cause any modified files to carry prominent notices stating that
+You changed the files; and
+
+(c) You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source
+form of the Work, excluding those notices that do not pertain to any part
+of the Derivative Works; and
+
+(d) If the Work includes a "NOTICE" text file as part of its distribution,
+then any Derivative Works that You distribute must include a readable copy
+of the attribution notices contained within such NOTICE file, excluding those
+notices that do not pertain to any part of the Derivative Works, in at least
+one of the following places: within a NOTICE text file distributed as part
+of the Derivative Works; within the Source form or documentation, if provided
+along with the Derivative Works; or, within a display generated by the Derivative
+Works, if and wherever such third-party notices normally appear. The contents
+of the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works
+that You distribute, alongside or as an addendum to the NOTICE text from the
+Work, provided that such additional attribution notices cannot be construed
+as modifying the License.
+
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction,
+or distribution of Your modifications, or for any such Derivative Works as
+a whole, provided Your use, reproduction, and distribution of the Work otherwise
+complies with the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise, any
+Contribution intentionally submitted for inclusion in the Work by You to the
+Licensor shall be under the terms and conditions of this License, without
+any additional terms or conditions. Notwithstanding the above, nothing herein
+shall supersede or modify the terms of any separate license agreement you
+may have executed with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade names,
+trademarks, service marks, or product names of the Licensor, except as required
+for reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or agreed to
+in writing, Licensor provides the Work (and each Contributor provides its
+Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied, including, without limitation, any warranties
+or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR
+A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness
+of using or redistributing the Work and assume any risks associated with Your
+exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory, whether
+in tort (including negligence), contract, or otherwise, unless required by
+applicable law (such as deliberate and grossly negligent acts) or agreed to
+in writing, shall any Contributor be liable to You for damages, including
+any direct, indirect, special, incidental, or consequential damages of any
+character arising as a result of this License or out of the use or inability
+to use the Work (including but not limited to damages for loss of goodwill,
+work stoppage, computer failure or malfunction, or any and all other commercial
+damages or losses), even if such Contributor has been advised of the possibility
+of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing the Work
+or Derivative Works thereof, You may choose to offer, and charge a fee for,
+acceptance of support, warranty, indemnity, or other liability obligations
+and/or rights consistent with this License. However, in accepting such obligations,
+You may act only on Your own behalf and on Your sole responsibility, not on
+behalf of any other Contributor, and only if You agree to indemnify, defend,
+and hold each Contributor harmless for any liability incurred by, or claims
+asserted against, such Contributor by reason of your accepting any such warranty
+or additional liability. END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own identifying
+information. (Don't include the brackets!) The text should be enclosed in
+the appropriate comment syntax for the file format. We also recommend that
+a file or class name and description of purpose be included on the same "printed
+page" as the copyright notice for easier identification within third-party
+archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+
+you may not use this file except in compliance with the License.
+
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+
+distributed under the License is distributed on an "AS IS" BASIS,
+
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+See the License for the specific language governing permissions and
+
+limitations under the License.
@@ -0,0 +1,26 @@
+Copyright (c) <year> <owner>. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
+     communicate, and translate a Work;
+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
@@ -0,0 +1,319 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 2, June 1991
+
+Copyright (C) 1989, 1991 Free Software Foundation, Inc. 
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public License is intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users. This General Public License applies to
+most of the Free Software Foundation's software and to any other program whose
+authors commit to using it. (Some other Free Software Foundation software
+is covered by the GNU Lesser General Public License instead.) You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the software, or if you modify it.
+
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must give the recipients all the rights that you have. You
+must make sure that they, too, receive or can get the source code. And you
+must show them these terms so they know their rights.
+
+We protect your rights with two steps: (1) copyright the software, and (2)
+offer you this license which gives you legal permission to copy, distribute
+and/or modify the software.
+
+Also, for each author's protection and ours, we want to make certain that
+everyone understands that there is no warranty for this free software. If
+the software is modified by someone else and passed on, we want its recipients
+to know that what they have is not the original, so that any problems introduced
+by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that redistributors of a free program will individually
+obtain patent licenses, in effect making the program proprietary. To prevent
+this, we have made it clear that any patent must be licensed for everyone's
+free use or not licensed at all.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License applies to any program or other work which contains a notice
+placed by the copyright holder saying it may be distributed under the terms
+of this General Public License. The "Program", below, refers to any such program
+or work, and a "work based on the Program" means either the Program or any
+derivative work under copyright law: that is to say, a work containing the
+Program or a portion of it, either verbatim or with modifications and/or translated
+into another language. (Hereinafter, translation is included without limitation
+in the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running the Program
+is not restricted, and the output from the Program is covered only if its
+contents constitute a work based on the Program (independent of having been
+made by running the Program). Whether that is true depends on what the Program
+does.
+
+1. You may copy and distribute verbatim copies of the Program's source code
+as you receive it, in any medium, provided that you conspicuously and appropriately
+publish on each copy an appropriate copyright notice and disclaimer of warranty;
+keep intact all the notices that refer to this License and to the absence
+of any warranty; and give any other recipients of the Program a copy of this
+License along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Program or any portion of it,
+thus forming a work based on the Program, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+a) You must cause the modified files to carry prominent notices stating that
+you changed the files and the date of any change.
+
+b) You must cause any work that you distribute or publish, that in whole or
+in part contains or is derived from the Program or any part thereof, to be
+licensed as a whole at no charge to all third parties under the terms of this
+License.
+
+c) If the modified program normally reads commands interactively when run,
+you must cause it, when started running for such interactive use in the most
+ordinary way, to print or display an announcement including an appropriate
+copyright notice and a notice that there is no warranty (or else, saying that
+you provide a warranty) and that users may redistribute the program under
+these conditions, and telling the user how to view a copy of this License.
+(Exception: if the Program itself is interactive but does not normally print
+such an announcement, your work based on the Program is not required to print
+an announcement.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Program, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Program, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Program.
+
+In addition, mere aggregation of another work not based on the Program with
+the Program (or with a work based on the Program) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may copy and distribute the Program (or a work based on it, under Section
+2) in object code or executable form under the terms of Sections 1 and 2 above
+provided that you also do one of the following:
+
+a) Accompany it with the complete corresponding machine-readable source code,
+which must be distributed under the terms of Sections 1 and 2 above on a medium
+customarily used for software interchange; or,
+
+b) Accompany it with a written offer, valid for at least three years, to give
+any third party, for a charge no more than your cost of physically performing
+source distribution, a complete machine-readable copy of the corresponding
+source code, to be distributed under the terms of Sections 1 and 2 above on
+a medium customarily used for software interchange; or,
+
+c) Accompany it with the information you received as to the offer to distribute
+corresponding source code. (This alternative is allowed only for noncommercial
+distribution and only if you received the program in object code or executable
+form with such an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for making
+modifications to it. For an executable work, complete source code means all
+the source code for all modules it contains, plus any associated interface
+definition files, plus the scripts used to control compilation and installation
+of the executable. However, as a special exception, the source code distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+If distribution of executable or object code is made by offering access to
+copy from a designated place, then offering equivalent access to copy the
+source code from the same place counts as distribution of the source code,
+even though third parties are not compelled to copy the source along with
+the object code.
+
+4. You may not copy, modify, sublicense, or distribute the Program except
+as expressly provided under this License. Any attempt otherwise to copy, modify,
+sublicense or distribute the Program is void, and will automatically terminate
+your rights under this License. However, parties who have received copies,
+or rights, from you under this License will not have their licenses terminated
+so long as such parties remain in full compliance.
+
+5. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Program or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Program
+(or any work based on the Program), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+6. Each time you redistribute the Program (or any work based on the Program),
+the recipient automatically receives a license from the original licensor
+to copy, distribute or modify the Program subject to these terms and conditions.
+You may not impose any further restrictions on the recipients' exercise of
+the rights granted herein. You are not responsible for enforcing compliance
+by third parties to this License.
+
+7. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Program at all. For example, if a
+patent license would not permit royalty-free redistribution of the Program
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply and
+the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system, which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+8. If the distribution and/or use of the Program is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Program under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+9. The Free Software Foundation may publish revised and/or new versions of
+the General Public License from time to time. Such new versions will be similar
+in spirit to the present version, but may differ in detail to address new
+problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of this License, you may choose
+any version ever published by the Free Software Foundation.
+
+10. If you wish to incorporate parts of the Program into other free programs
+whose distribution conditions are different, write to the author to ask for
+permission. For software which is copyrighted by the Free Software Foundation,
+write to the Free Software Foundation; we sometimes make exceptions for this.
+Our decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing and reuse
+of software generally.
+
+   NO WARRANTY
+
+11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
+use to the public, the best way to achieve this is to make it free software
+which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively convey the exclusion
+of warranty; and each file should have at least the "copyright" line and a
+pointer to where the full notice is found.
+
+<one line to give the program's name and an idea of what it does.>
+
+Copyright (C)< yyyy> <name of author>
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this when
+it starts in an interactive mode:
+
+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
+with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software,
+and you are welcome to redistribute it under certain conditions; type `show
+c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may be
+called something other than `show w' and `show c'; they could even be mouse-clicks
+or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the program, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision'
+(which makes passes at compilers) written by James Hacker.
+
+<signature of Ty Coon >, 1 April 1989 Ty Coon, President of Vice This General
+Public License does not permit incorporating your program into proprietary
+programs. If your program is a subroutine library, you may consider it more
+useful to permit linking proprietary applications with the library. If this
+is what you want to do, use the GNU Lesser General Public License instead
+of this License.
@@ -0,0 +1,319 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 2, June 1991
+
+Copyright (C) 1989, 1991 Free Software Foundation, Inc. 
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public License is intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users. This General Public License applies to
+most of the Free Software Foundation's software and to any other program whose
+authors commit to using it. (Some other Free Software Foundation software
+is covered by the GNU Lesser General Public License instead.) You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the software, or if you modify it.
+
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must give the recipients all the rights that you have. You
+must make sure that they, too, receive or can get the source code. And you
+must show them these terms so they know their rights.
+
+We protect your rights with two steps: (1) copyright the software, and (2)
+offer you this license which gives you legal permission to copy, distribute
+and/or modify the software.
+
+Also, for each author's protection and ours, we want to make certain that
+everyone understands that there is no warranty for this free software. If
+the software is modified by someone else and passed on, we want its recipients
+to know that what they have is not the original, so that any problems introduced
+by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that redistributors of a free program will individually
+obtain patent licenses, in effect making the program proprietary. To prevent
+this, we have made it clear that any patent must be licensed for everyone's
+free use or not licensed at all.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License applies to any program or other work which contains a notice
+placed by the copyright holder saying it may be distributed under the terms
+of this General Public License. The "Program", below, refers to any such program
+or work, and a "work based on the Program" means either the Program or any
+derivative work under copyright law: that is to say, a work containing the
+Program or a portion of it, either verbatim or with modifications and/or translated
+into another language. (Hereinafter, translation is included without limitation
+in the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running the Program
+is not restricted, and the output from the Program is covered only if its
+contents constitute a work based on the Program (independent of having been
+made by running the Program). Whether that is true depends on what the Program
+does.
+
+1. You may copy and distribute verbatim copies of the Program's source code
+as you receive it, in any medium, provided that you conspicuously and appropriately
+publish on each copy an appropriate copyright notice and disclaimer of warranty;
+keep intact all the notices that refer to this License and to the absence
+of any warranty; and give any other recipients of the Program a copy of this
+License along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Program or any portion of it,
+thus forming a work based on the Program, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+a) You must cause the modified files to carry prominent notices stating that
+you changed the files and the date of any change.
+
+b) You must cause any work that you distribute or publish, that in whole or
+in part contains or is derived from the Program or any part thereof, to be
+licensed as a whole at no charge to all third parties under the terms of this
+License.
+
+c) If the modified program normally reads commands interactively when run,
+you must cause it, when started running for such interactive use in the most
+ordinary way, to print or display an announcement including an appropriate
+copyright notice and a notice that there is no warranty (or else, saying that
+you provide a warranty) and that users may redistribute the program under
+these conditions, and telling the user how to view a copy of this License.
+(Exception: if the Program itself is interactive but does not normally print
+such an announcement, your work based on the Program is not required to print
+an announcement.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Program, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Program, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Program.
+
+In addition, mere aggregation of another work not based on the Program with
+the Program (or with a work based on the Program) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may copy and distribute the Program (or a work based on it, under Section
+2) in object code or executable form under the terms of Sections 1 and 2 above
+provided that you also do one of the following:
+
+a) Accompany it with the complete corresponding machine-readable source code,
+which must be distributed under the terms of Sections 1 and 2 above on a medium
+customarily used for software interchange; or,
+
+b) Accompany it with a written offer, valid for at least three years, to give
+any third party, for a charge no more than your cost of physically performing
+source distribution, a complete machine-readable copy of the corresponding
+source code, to be distributed under the terms of Sections 1 and 2 above on
+a medium customarily used for software interchange; or,
+
+c) Accompany it with the information you received as to the offer to distribute
+corresponding source code. (This alternative is allowed only for noncommercial
+distribution and only if you received the program in object code or executable
+form with such an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for making
+modifications to it. For an executable work, complete source code means all
+the source code for all modules it contains, plus any associated interface
+definition files, plus the scripts used to control compilation and installation
+of the executable. However, as a special exception, the source code distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+If distribution of executable or object code is made by offering access to
+copy from a designated place, then offering equivalent access to copy the
+source code from the same place counts as distribution of the source code,
+even though third parties are not compelled to copy the source along with
+the object code.
+
+4. You may not copy, modify, sublicense, or distribute the Program except
+as expressly provided under this License. Any attempt otherwise to copy, modify,
+sublicense or distribute the Program is void, and will automatically terminate
+your rights under this License. However, parties who have received copies,
+or rights, from you under this License will not have their licenses terminated
+so long as such parties remain in full compliance.
+
+5. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Program or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Program
+(or any work based on the Program), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+6. Each time you redistribute the Program (or any work based on the Program),
+the recipient automatically receives a license from the original licensor
+to copy, distribute or modify the Program subject to these terms and conditions.
+You may not impose any further restrictions on the recipients' exercise of
+the rights granted herein. You are not responsible for enforcing compliance
+by third parties to this License.
+
+7. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Program at all. For example, if a
+patent license would not permit royalty-free redistribution of the Program
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply and
+the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system, which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+8. If the distribution and/or use of the Program is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Program under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+9. The Free Software Foundation may publish revised and/or new versions of
+the General Public License from time to time. Such new versions will be similar
+in spirit to the present version, but may differ in detail to address new
+problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of this License, you may choose
+any version ever published by the Free Software Foundation.
+
+10. If you wish to incorporate parts of the Program into other free programs
+whose distribution conditions are different, write to the author to ask for
+permission. For software which is copyrighted by the Free Software Foundation,
+write to the Free Software Foundation; we sometimes make exceptions for this.
+Our decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing and reuse
+of software generally.
+
+   NO WARRANTY
+
+11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
+use to the public, the best way to achieve this is to make it free software
+which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively convey the exclusion
+of warranty; and each file should have at least the "copyright" line and a
+pointer to where the full notice is found.
+
+<one line to give the program's name and an idea of what it does.>
+
+Copyright (C) <yyyy> <name of author>
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this when
+it starts in an interactive mode:
+
+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
+with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software,
+and you are welcome to redistribute it under certain conditions; type `show
+c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may be
+called something other than `show w' and `show c'; they could even be mouse-clicks
+or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the program, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision'
+(which makes passes at compilers) written by James Hacker.
+
+<signature of Ty Coon>, 1 April 1989 Ty Coon, President of Vice This General
+Public License does not permit incorporating your program into proprietary
+programs. If your program is a subroutine library, you may consider it more
+useful to permit linking proprietary applications with the library. If this
+is what you want to do, use the GNU Lesser General Public License instead
+of this License.
@@ -0,0 +1,625 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for software and
+other kinds of works.
+
+The licenses for most software and other practical works are designed to take
+away your freedom to share and change the works. By contrast, the GNU General
+Public License is intended to guarantee your freedom to share and change all
+versions of a program--to make sure it remains free software for all its users.
+We, the Free Software Foundation, use the GNU General Public License for most
+of our software; it applies also to any other work released this way by its
+authors. You can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for them if you wish), that
+you receive source code or can get it if you want it, that you can change
+the software or use pieces of it in new free programs, and that you know you
+can do these things.
+
+To protect your rights, we need to prevent others from denying you these rights
+or asking you to surrender the rights. Therefore, you have certain responsibilities
+if you distribute copies of the software, or if you modify it: responsibilities
+to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must pass on to the recipients the same freedoms that you received.
+You must make sure that they, too, receive or can get the source code. And
+you must show them these terms so they know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps: (1) assert
+copyright on the software, and (2) offer you this License giving you legal
+permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains that
+there is no warranty for this free software. For both users' and authors'
+sake, the GPL requires that modified versions be marked as changed, so that
+their problems will not be attributed erroneously to authors of previous versions.
+
+Some devices are designed to deny users access to install or run modified
+versions of the software inside them, although the manufacturer can do so.
+This is fundamentally incompatible with the aim of protecting users' freedom
+to change the software. The systematic pattern of such abuse occurs in the
+area of products for individuals to use, which is precisely where it is most
+unacceptable. Therefore, we have designed this version of the GPL to prohibit
+the practice for those products. If such problems arise substantially in other
+domains, we stand ready to extend this provision to those domains in future
+versions of the GPL, as needed to protect the freedom of users.
+
+Finally, every program is threatened constantly by software patents. States
+should not allow patents to restrict development and use of software on general-purpose
+computers, but in those that do, we wish to avoid the special danger that
+patents applied to a free program could make it effectively proprietary. To
+prevent this, the GPL assures that patents cannot be used to render the program
+non-free.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS
+
+   0. Definitions.
+
+   "This License" refers to version 3 of the GNU General Public License.
+
+"Copyright" also means copyright-like laws that apply to other kinds of works,
+such as semiconductor masks.
+
+"The Program" refers to any copyrightable work licensed under this License.
+Each licensee is addressed as "you". "Licensees" and "recipients" may be individuals
+or organizations.
+
+To "modify" a work means to copy from or adapt all or part of the work in
+a fashion requiring copyright permission, other than the making of an exact
+copy. The resulting work is called a "modified version" of the earlier work
+or a work "based on" the earlier work.
+
+A "covered work" means either the unmodified Program or a work based on the
+Program.
+
+To "propagate" a work means to do anything with it that, without permission,
+would make you directly or secondarily liable for infringement under applicable
+copyright law, except executing it on a computer or modifying a private copy.
+Propagation includes copying, distribution (with or without modification),
+making available to the public, and in some countries other activities as
+well.
+
+To "convey" a work means any kind of propagation that enables other parties
+to make or receive copies. Mere interaction with a user through a computer
+network, with no transfer of a copy, is not conveying.
+
+An interactive user interface displays "Appropriate Legal Notices" to the
+extent that it includes a convenient and prominently visible feature that
+(1) displays an appropriate copyright notice, and (2) tells the user that
+there is no warranty for the work (except to the extent that warranties are
+provided), that licensees may convey the work under this License, and how
+to view a copy of this License. If the interface presents a list of user commands
+or options, such as a menu, a prominent item in the list meets this criterion.
+
+   1. Source Code.
+
+The "source code" for a work means the preferred form of the work for making
+modifications to it. "Object code" means any non-source form of a work.
+
+A "Standard Interface" means an interface that either is an official standard
+defined by a recognized standards body, or, in the case of interfaces specified
+for a particular programming language, one that is widely used among developers
+working in that language.
+
+The "System Libraries" of an executable work include anything, other than
+the work as a whole, that (a) is included in the normal form of packaging
+a Major Component, but which is not part of that Major Component, and (b)
+serves only to enable use of the work with that Major Component, or to implement
+a Standard Interface for which an implementation is available to the public
+in source code form. A "Major Component", in this context, means a major essential
+component (kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to produce
+the work, or an object code interpreter used to run it.
+
+The "Corresponding Source" for a work in object code form means all the source
+code needed to generate, install, and (for an executable work) run the object
+code and to modify the work, including scripts to control those activities.
+However, it does not include the work's System Libraries, or general-purpose
+tools or generally available free programs which are used unmodified in performing
+those activities but which are not part of the work. For example, Corresponding
+Source includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically linked
+subprograms that the work is specifically designed to require, such as by
+intimate data communication or control flow between those subprograms and
+other parts of the work.
+
+The Corresponding Source need not include anything that users can regenerate
+automatically from other parts of the Corresponding Source.
+
+   The Corresponding Source for a work in source code form is that same work.
+
+   2. Basic Permissions.
+
+All rights granted under this License are granted for the term of copyright
+on the Program, and are irrevocable provided the stated conditions are met.
+This License explicitly affirms your unlimited permission to run the unmodified
+Program. The output from running a covered work is covered by this License
+only if the output, given its content, constitutes a covered work. This License
+acknowledges your rights of fair use or other equivalent, as provided by copyright
+law.
+
+You may make, run and propagate covered works that you do not convey, without
+conditions so long as your license otherwise remains in force. You may convey
+covered works to others for the sole purpose of having them make modifications
+exclusively for you, or provide you with facilities for running those works,
+provided that you comply with the terms of this License in conveying all material
+for which you do not control copyright. Those thus making or running the covered
+works for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of your copyrighted
+material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under the conditions
+stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
+
+   3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological measure
+under any applicable law fulfilling obligations under article 11 of the WIPO
+copyright treaty adopted on 20 December 1996, or similar laws prohibiting
+or restricting circumvention of such measures.
+
+When you convey a covered work, you waive any legal power to forbid circumvention
+of technological measures to the extent such circumvention is effected by
+exercising rights under this License with respect to the covered work, and
+you disclaim any intention to limit operation or modification of the work
+as a means of enforcing, against the work's users, your or third parties'
+legal rights to forbid circumvention of technological measures.
+
+   4. Conveying Verbatim Copies.
+
+You may convey verbatim copies of the Program's source code as you receive
+it, in any medium, provided that you conspicuously and appropriately publish
+on each copy an appropriate copyright notice; keep intact all notices stating
+that this License and any non-permissive terms added in accord with section
+7 apply to the code; keep intact all notices of the absence of any warranty;
+and give all recipients a copy of this License along with the Program.
+
+You may charge any price or no price for each copy that you convey, and you
+may offer support or warranty protection for a fee.
+
+   5. Conveying Modified Source Versions.
+
+You may convey a work based on the Program, or the modifications to produce
+it from the Program, in the form of source code under the terms of section
+4, provided that you also meet all of these conditions:
+
+a) The work must carry prominent notices stating that you modified it, and
+giving a relevant date.
+
+b) The work must carry prominent notices stating that it is released under
+this License and any conditions added under section 7. This requirement modifies
+the requirement in section 4 to "keep intact all notices".
+
+c) You must license the entire work, as a whole, under this License to anyone
+who comes into possession of a copy. This License will therefore apply, along
+with any applicable section 7 additional terms, to the whole of the work,
+and all its parts, regardless of how they are packaged. This License gives
+no permission to license the work in any other way, but it does not invalidate
+such permission if you have separately received it.
+
+d) If the work has interactive user interfaces, each must display Appropriate
+Legal Notices; however, if the Program has interactive interfaces that do
+not display Appropriate Legal Notices, your work need not make them do so.
+
+A compilation of a covered work with other separate and independent works,
+which are not by their nature extensions of the covered work, and which are
+not combined with it such as to form a larger program, in or on a volume of
+a storage or distribution medium, is called an "aggregate" if the compilation
+and its resulting copyright are not used to limit the access or legal rights
+of the compilation's users beyond what the individual works permit. Inclusion
+of a covered work in an aggregate does not cause this License to apply to
+the other parts of the aggregate.
+
+   6. Conveying Non-Source Forms.
+
+You may convey a covered work in object code form under the terms of sections
+4 and 5, provided that you also convey the machine-readable Corresponding
+Source under the terms of this License, in one of these ways:
+
+a) Convey the object code in, or embodied in, a physical product (including
+a physical distribution medium), accompanied by the Corresponding Source fixed
+on a durable physical medium customarily used for software interchange.
+
+b) Convey the object code in, or embodied in, a physical product (including
+a physical distribution medium), accompanied by a written offer, valid for
+at least three years and valid for as long as you offer spare parts or customer
+support for that product model, to give anyone who possesses the object code
+either (1) a copy of the Corresponding Source for all the software in the
+product that is covered by this License, on a durable physical medium customarily
+used for software interchange, for a price no more than your reasonable cost
+of physically performing this conveying of source, or (2) access to copy the
+Corresponding Source from a network server at no charge.
+
+c) Convey individual copies of the object code with a copy of the written
+offer to provide the Corresponding Source. This alternative is allowed only
+occasionally and noncommercially, and only if you received the object code
+with such an offer, in accord with subsection 6b.
+
+d) Convey the object code by offering access from a designated place (gratis
+or for a charge), and offer equivalent access to the Corresponding Source
+in the same way through the same place at no further charge. You need not
+require recipients to copy the Corresponding Source along with the object
+code. If the place to copy the object code is a network server, the Corresponding
+Source may be on a different server (operated by you or a third party) that
+supports equivalent copying facilities, provided you maintain clear directions
+next to the object code saying where to find the Corresponding Source. Regardless
+of what server hosts the Corresponding Source, you remain obligated to ensure
+that it is available for as long as needed to satisfy these requirements.
+
+e) Convey the object code using peer-to-peer transmission, provided you inform
+other peers where the object code and Corresponding Source of the work are
+being offered to the general public at no charge under subsection 6d.
+
+A separable portion of the object code, whose source code is excluded from
+the Corresponding Source as a System Library, need not be included in conveying
+the object code work.
+
+A "User Product" is either (1) a "consumer product", which means any tangible
+personal property which is normally used for personal, family, or household
+purposes, or (2) anything designed or sold for incorporation into a dwelling.
+In determining whether a product is a consumer product, doubtful cases shall
+be resolved in favor of coverage. For a particular product received by a particular
+user, "normally used" refers to a typical or common use of that class of product,
+regardless of the status of the particular user or of the way in which the
+particular user actually uses, or expects or is expected to use, the product.
+A product is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent the
+only significant mode of use of the product.
+
+"Installation Information" for a User Product means any methods, procedures,
+authorization keys, or other information required to install and execute modified
+versions of a covered work in that User Product from a modified version of
+its Corresponding Source. The information must suffice to ensure that the
+continued functioning of the modified object code is in no case prevented
+or interfered with solely because modification has been made.
+
+If you convey an object code work under this section in, or with, or specifically
+for use in, a User Product, and the conveying occurs as part of a transaction
+in which the right of possession and use of the User Product is transferred
+to the recipient in perpetuity or for a fixed term (regardless of how the
+transaction is characterized), the Corresponding Source conveyed under this
+section must be accompanied by the Installation Information. But this requirement
+does not apply if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has been installed
+in ROM).
+
+The requirement to provide Installation Information does not include a requirement
+to continue to provide support service, warranty, or updates for a work that
+has been modified or installed by the recipient, or for the User Product in
+which it has been modified or installed. Access to a network may be denied
+when the modification itself materially and adversely affects the operation
+of the network or violates the rules and protocols for communication across
+the network.
+
+Corresponding Source conveyed, and Installation Information provided, in accord
+with this section must be in a format that is publicly documented (and with
+an implementation available to the public in source code form), and must require
+no special password or key for unpacking, reading or copying.
+
+   7. Additional Terms.
+
+"Additional permissions" are terms that supplement the terms of this License
+by making exceptions from one or more of its conditions. Additional permissions
+that are applicable to the entire Program shall be treated as though they
+were included in this License, to the extent that they are valid under applicable
+law. If additional permissions apply only to part of the Program, that part
+may be used separately under those permissions, but the entire Program remains
+governed by this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option remove any
+additional permissions from that copy, or from any part of it. (Additional
+permissions may be written to require their own removal in certain cases when
+you modify the work.) You may place additional permissions on material, added
+by you to a covered work, for which you have or can give appropriate copyright
+permission.
+
+Notwithstanding any other provision of this License, for material you add
+to a covered work, you may (if authorized by the copyright holders of that
+material) supplement the terms of this License with terms:
+
+a) Disclaiming warranty or limiting liability differently from the terms of
+sections 15 and 16 of this License; or
+
+b) Requiring preservation of specified reasonable legal notices or author
+attributions in that material or in the Appropriate Legal Notices displayed
+by works containing it; or
+
+c) Prohibiting misrepresentation of the origin of that material, or requiring
+that modified versions of such material be marked in reasonable ways as different
+from the original version; or
+
+d) Limiting the use for publicity purposes of names of licensors or authors
+of the material; or
+
+e) Declining to grant rights under trademark law for use of some trade names,
+trademarks, or service marks; or
+
+f) Requiring indemnification of licensors and authors of that material by
+anyone who conveys the material (or modified versions of it) with contractual
+assumptions of liability to the recipient, for any liability that these contractual
+assumptions directly impose on those licensors and authors.
+
+All other non-permissive additional terms are considered "further restrictions"
+within the meaning of section 10. If the Program as you received it, or any
+part of it, contains a notice stating that it is governed by this License
+along with a term that is a further restriction, you may remove that term.
+If a license document contains a further restriction but permits relicensing
+or conveying under this License, you may add to a covered work material governed
+by the terms of that license document, provided that the further restriction
+does not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you must place,
+in the relevant source files, a statement of the additional terms that apply
+to those files, or a notice indicating where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the form
+of a separately written license, or stated as exceptions; the above requirements
+apply either way.
+
+   8. Termination.
+
+You may not propagate or modify a covered work except as expressly provided
+under this License. Any attempt otherwise to propagate or modify it is void,
+and will automatically terminate your rights under this License (including
+any patent licenses granted under the third paragraph of section 11).
+
+However, if you cease all violation of this License, then your license from
+a particular copyright holder is reinstated (a) provisionally, unless and
+until the copyright holder explicitly and finally terminates your license,
+and (b) permanently, if the copyright holder fails to notify you of the violation
+by some reasonable means prior to 60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is reinstated permanently
+if the copyright holder notifies you of the violation by some reasonable means,
+this is the first time you have received notice of violation of this License
+(for any work) from that copyright holder, and you cure the violation prior
+to 30 days after your receipt of the notice.
+
+Termination of your rights under this section does not terminate the licenses
+of parties who have received copies or rights from you under this License.
+If your rights have been terminated and not permanently reinstated, you do
+not qualify to receive new licenses for the same material under section 10.
+
+   9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run a copy
+of the Program. Ancillary propagation of a covered work occurring solely as
+a consequence of using peer-to-peer transmission to receive a copy likewise
+does not require acceptance. However, nothing other than this License grants
+you permission to propagate or modify any covered work. These actions infringe
+copyright if you do not accept this License. Therefore, by modifying or propagating
+a covered work, you indicate your acceptance of this License to do so.
+
+   10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically receives
+a license from the original licensors, to run, modify and propagate that work,
+subject to this License. You are not responsible for enforcing compliance
+by third parties with this License.
+
+An "entity transaction" is a transaction transferring control of an organization,
+or substantially all assets of one, or subdividing an organization, or merging
+organizations. If propagation of a covered work results from an entity transaction,
+each party to that transaction who receives a copy of the work also receives
+whatever licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the Corresponding
+Source of the work from the predecessor in interest, if the predecessor has
+it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the rights
+granted or affirmed under this License. For example, you may not impose a
+license fee, royalty, or other charge for exercise of rights granted under
+this License, and you may not initiate litigation (including a cross-claim
+or counterclaim in a lawsuit) alleging that any patent claim is infringed
+by making, using, selling, offering for sale, or importing the Program or
+any portion of it.
+
+   11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this License
+of the Program or a work on which the Program is based. The work thus licensed
+is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned or controlled
+by the contributor, whether already acquired or hereafter acquired, that would
+be infringed by some manner, permitted by this License, of making, using,
+or selling its contributor version, but do not include claims that would be
+infringed only as a consequence of further modification of the contributor
+version. For purposes of this definition, "control" includes the right to
+grant patent sublicenses in a manner consistent with the requirements of this
+License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free patent
+license under the contributor's essential patent claims, to make, use, sell,
+offer for sale, import and otherwise run, modify and propagate the contents
+of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express agreement
+or commitment, however denominated, not to enforce a patent (such as an express
+permission to practice a patent or covenant not to sue for patent infringement).
+To "grant" such a patent license to a party means to make such an agreement
+or commitment not to enforce a patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license, and the
+Corresponding Source of the work is not available for anyone to copy, free
+of charge and under the terms of this License, through a publicly available
+network server or other readily accessible means, then you must either (1)
+cause the Corresponding Source to be so available, or (2) arrange to deprive
+yourself of the benefit of the patent license for this particular work, or
+(3) arrange, in a manner consistent with the requirements of this License,
+to extend the patent license to downstream recipients. "Knowingly relying"
+means you have actual knowledge that, but for the patent license, your conveying
+the covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that country
+that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or arrangement,
+you convey, or propagate by procuring conveyance of, a covered work, and grant
+a patent license to some of the parties receiving the covered work authorizing
+them to use, propagate, modify or convey a specific copy of the covered work,
+then the patent license you grant is automatically extended to all recipients
+of the covered work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the scope
+of its coverage, prohibits the exercise of, or is conditioned on the non-exercise
+of one or more of the rights that are specifically granted under this License.
+You may not convey a covered work if you are a party to an arrangement with
+a third party that is in the business of distributing software, under which
+you make payment to the third party based on the extent of your activity of
+conveying the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by you
+(or copies made from those copies), or (b) primarily for and in connection
+with specific products or compilations that contain the covered work, unless
+you entered into that arrangement, or that patent license was granted, prior
+to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied
+license or other defenses to infringement that may otherwise be available
+to you under applicable patent law.
+
+   12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or otherwise)
+that contradict the conditions of this License, they do not excuse you from
+the conditions of this License. If you cannot convey a covered work so as
+to satisfy simultaneously your obligations under this License and any other
+pertinent obligations, then as a consequence you may not convey it at all.
+For example, if you agree to terms that obligate you to collect a royalty
+for further conveying from those to whom you convey the Program, the only
+way you could satisfy both those terms and this License would be to refrain
+entirely from conveying the Program.
+
+   13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have permission to
+link or combine any covered work with a work licensed under version 3 of the
+GNU Affero General Public License into a single combined work, and to convey
+the resulting work. The terms of this License will continue to apply to the
+part which is the covered work, but the special requirements of the GNU Affero
+General Public License, section 13, concerning interaction through a network
+will apply to the combination as such.
+
+   14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the
+GNU General Public License from time to time. Such new versions will be similar
+in spirit to the present version, but may differ in detail to address new
+problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
+that a certain numbered version of the GNU General Public License "or any
+later version" applies to it, you have the option of following the terms and
+conditions either of that numbered version or of any later version published
+by the Free Software Foundation. If the Program does not specify a version
+number of the GNU General Public License, you may choose any version ever
+published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of
+the GNU General Public License can be used, that proxy's public statement
+of acceptance of a version permanently authorizes you to choose that version
+for the Program.
+
+Later license versions may give you additional or different permissions. However,
+no additional obligations are imposed on any author or copyright holder as
+a result of your choosing to follow a later version.
+
+   15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE
+LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
+EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM
+PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+   16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL
+ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM
+AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO
+USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
+INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE
+PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+   17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided above cannot
+be given local legal effect according to their terms, reviewing courts shall
+apply local law that most closely approximates an absolute waiver of all civil
+liability in connection with the Program, unless a warranty or assumption
+of liability accompanies a copy of the Program in return for a fee. END OF
+TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
+use to the public, the best way to achieve this is to make it free software
+which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively state the exclusion
+of warranty; and each file should have at least the "copyright" line and a
+pointer to where the full notice is found.
+
+<one line to give the program's name and a brief idea of what it does.>
+
+Copyright (C) <year> <name of author>
+
+This program is free software: you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like
+this when it starts in an interactive mode:
+
+<program> Copyright (C) <year> <name of author>
+
+This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+
+This is free software, and you are welcome to redistribute it under certain
+conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands might
+be different; for a GUI interface, you would use an "about box".
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary. For
+more information on this, and how to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General Public
+License instead of this License. But first, please read <https://www.gnu.org/
+licenses /why-not-lgpl.html>.
@@ -0,0 +1,232 @@
+GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for software and other kinds of works.
+
+The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.
+
+Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users.
+
+Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free.
+
+The precise terms and conditions for copying, distribution and modification follow.
+
+TERMS AND CONDITIONS
+
+0. Definitions.
+
+“This License” refers to version 3 of the GNU General Public License.
+
+“Copyright” also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.
+
+“The Program” refers to any copyrightable work licensed under this License. Each licensee is addressed as “you”. “Licensees” and “recipients” may be individuals or organizations.
+
+To “modify” a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a “modified version” of the earlier work or a work “based on” the earlier work.
+
+A “covered work” means either the unmodified Program or a work based on the Program.
+
+To “propagate” a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well.
+
+To “convey” a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying.
+
+An interactive user interface displays “Appropriate Legal Notices” to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion.
+
+1. Source Code.
+The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any non-source form of a work.
+
+A “Standard Interface” means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language.
+
+The “System Libraries” of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. A “Major Component”, in this context, means a major essential component (kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce the work, or an object code interpreter used to run it.
+
+The “Corresponding Source” for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work. For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work.
+
+The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source.
+
+The Corresponding Source for a work in source code form is that same work.
+
+2. Basic Permissions.
+All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law.
+
+You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
+
+3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures.
+
+When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures.
+
+4. Conveying Verbatim Copies.
+You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program.
+
+You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee.
+
+5. Conveying Modified Source Versions.
+You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions:
+
+     a) The work must carry prominent notices stating that you modified it, and giving a relevant date.
+
+     b) The work must carry prominent notices stating that it is released under this License and any conditions added under section 7. This requirement modifies the requirement in section 4 to “keep intact all notices”.
+
+     c) You must license the entire work, as a whole, under this License to anyone who comes into possession of a copy. This License will therefore apply, along with any applicable section 7 additional terms, to the whole of the work, and all its parts, regardless of how they are packaged. This License gives no permission to license the work in any other way, but it does not invalidate such permission if you have separately received it.
+
+     d) If the work has interactive user interfaces, each must display Appropriate Legal Notices; however, if the Program has interactive interfaces that do not display Appropriate Legal Notices, your work need not make them do so.
+
+A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an “aggregate” if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate.
+
+6. Conveying Non-Source Forms.
+You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways:
+
+     a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange.
+
+     b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge.
+
+     c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b.
+
+     d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements.
+
+     e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d.
+
+A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work.
+
+A “User Product” is either (1) a “consumer product”, which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, “normally used” refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product.
+
+“Installation Information” for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made.
+
+If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM).
+
+The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network.
+
+Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying.
+
+7. Additional Terms.
+“Additional permissions” are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission.
+
+Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:
+
+     a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or
+
+     b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or
+
+     c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or
+
+     d) Limiting the use for publicity purposes of names of licensors or authors of the material; or
+
+     e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or
+
+     f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors.
+
+All other non-permissive additional terms are considered “further restrictions” within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.
+
+8. Termination.
+You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11).
+
+However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.
+
+Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10.
+
+9. Acceptance Not Required for Having Copies.
+You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.
+
+10. Automatic Licensing of Downstream Recipients.
+Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License.
+
+An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.
+
+11. Patents.
+A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's “contributor version”.
+
+A contributor's “essential patent claims” are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, “control” includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.
+
+In the following three paragraphs, a “patent license” is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. “Knowingly relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
+
+A patent license is “discriminatory” if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
+
+12. No Surrender of Others' Freedom.
+If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.
+
+13. Use with the GNU Affero General Public License.
+Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.
+
+14. Revised Versions of this License.
+The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License “or any later version” applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
+
+Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
+
+15. Disclaimer of Warranty.
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
+
+     <one line to give the program's name and a brief idea of what it does.>
+     Copyright (C) <year>  <name of author>
+
+     This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:
+
+     <program>  Copyright (C) <year>  <name of author>
+     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+     This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an “about box”.
+
+You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read <https://www.gnu.org/philosophy/why-not-lgpl.html>.
@@ -0,0 +1,467 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 2.1, February 1999
+
+Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts as the
+successor of the GNU Library Public License, version 2, hence the version
+number 2.1.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public Licenses are intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users.
+
+This license, the Lesser General Public License, applies to some specially
+designated software packages--typically libraries--of the Free Software Foundation
+and other authors who decide to use it. You can use it too, but we suggest
+you first think carefully about whether this license or the ordinary General
+Public License is the better strategy to use in any particular case, based
+on the explanations below.
+
+When we speak of free software, we are referring to freedom of use, not price.
+Our General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish); that you receive source code or can get it if you want it; that you
+can change the software and use pieces of it in new free programs; and that
+you are informed that you can do these things.
+
+To protect your rights, we need to make restrictions that forbid distributors
+to deny you these rights or to ask you to surrender these rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the library or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You must
+make sure that they, too, receive or can get the source code. If you link
+other code with the library, you must provide complete object files to the
+recipients, so that they can relink them with the library after making changes
+to the library and recompiling it. And you must show them these terms so they
+know their rights.
+
+We protect your rights with a two-step method: (1) we copyright the library,
+and (2) we offer you this license, which gives you legal permission to copy,
+distribute and/or modify the library.
+
+To protect each distributor, we want to make it very clear that there is no
+warranty for the free library. Also, if the library is modified by someone
+else and passed on, the recipients should know that what they have is not
+the original version, so that the original author's reputation will not be
+affected by problems that might be introduced by others.
+
+Finally, software patents pose a constant threat to the existence of any free
+program. We wish to make sure that a company cannot effectively restrict the
+users of a free program by obtaining a restrictive license from a patent holder.
+Therefore, we insist that any patent license obtained for a version of the
+library must be consistent with the full freedom of use specified in this
+license.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License. This license, the GNU Lesser General Public License,
+applies to certain designated libraries, and is quite different from the ordinary
+General Public License. We use this license for certain libraries in order
+to permit linking those libraries into non-free programs.
+
+When a program is linked with a library, whether statically or using a shared
+library, the combination of the two is legally speaking a combined work, a
+derivative of the original library. The ordinary General Public License therefore
+permits such linking only if the entire combination fits its criteria of freedom.
+The Lesser General Public License permits more lax criteria for linking other
+code with the library.
+
+We call this license the "Lesser" General Public License because it does Less
+to protect the user's freedom than the ordinary General Public License. It
+also provides other free software developers Less of an advantage over competing
+non-free programs. These disadvantages are the reason we use the ordinary
+General Public License for many libraries. However, the Lesser license provides
+advantages in certain special circumstances.
+
+For example, on rare occasions, there may be a special need to encourage the
+widest possible use of a certain library, so that it becomes a de-facto standard.
+To achieve this, non-free programs must be allowed to use the library. A more
+frequent case is that a free library does the same job as widely used non-free
+libraries. In this case, there is little to gain by limiting the free library
+to free software only, so we use the Lesser General Public License.
+
+In other cases, permission to use a particular library in non-free programs
+enables a greater number of people to use a large body of free software. For
+example, permission to use the GNU C Library in non-free programs enables
+many more people to use the whole GNU operating system, as well as its variant,
+the GNU/Linux operating system.
+
+Although the Lesser General Public License is Less protective of the users'
+freedom, it does ensure that the user of a program that is linked with the
+Library has the freedom and the wherewithal to run that program using a modified
+version of the Library.
+
+The precise terms and conditions for copying, distribution and modification
+follow. Pay close attention to the difference between a "work based on the
+library" and a "work that uses the library". The former contains code derived
+from the library, whereas the latter must be combined with the library in
+order to run.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License Agreement applies to any software library or other program
+which contains a notice placed by the copyright holder or other authorized
+party saying it may be distributed under the terms of this Lesser General
+Public License (also called "this License"). Each licensee is addressed as
+"you".
+
+A "library" means a collection of software functions and/or data prepared
+so as to be conveniently linked with application programs (which use some
+of those functions and data) to form executables.
+
+The "Library", below, refers to any such software library or work which has
+been distributed under these terms. A "work based on the Library" means either
+the Library or any derivative work under copyright law: that is to say, a
+work containing the Library or a portion of it, either verbatim or with modifications
+and/or translated straightforwardly into another language. (Hereinafter, translation
+is included without limitation in the term "modification".)
+
+"Source code" for a work means the preferred form of the work for making modifications
+to it. For a library, complete source code means all the source code for all
+modules it contains, plus any associated interface definition files, plus
+the scripts used to control compilation and installation of the library.
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running a program
+using the Library is not restricted, and output from such a program is covered
+only if its contents constitute a work based on the Library (independent of
+the use of the Library in a tool for writing it). Whether that is true depends
+on what the Library does and what the program that uses the Library does.
+
+1. You may copy and distribute verbatim copies of the Library's complete source
+code as you receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice and disclaimer
+of warranty; keep intact all the notices that refer to this License and to
+the absence of any warranty; and distribute a copy of this License along with
+the Library.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Library or any portion of it,
+thus forming a work based on the Library, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+      a) The modified work must itself be a software library.
+
+b) You must cause the files modified to carry prominent notices stating that
+you changed the files and the date of any change.
+
+c) You must cause the whole of the work to be licensed at no charge to all
+third parties under the terms of this License.
+
+d) If a facility in the modified Library refers to a function or a table of
+data to be supplied by an application program that uses the facility, other
+than as an argument passed when the facility is invoked, then you must make
+a good faith effort to ensure that, in the event an application does not supply
+such function or table, the facility still operates, and performs whatever
+part of its purpose remains meaningful.
+
+(For example, a function in a library to compute square roots has a purpose
+that is entirely well-defined independent of the application. Therefore, Subsection
+2d requires that any application-supplied function or table used by this function
+must be optional: if the application does not supply it, the square root function
+must still compute square roots.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Library, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Library, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Library.
+
+In addition, mere aggregation of another work not based on the Library with
+the Library (or with a work based on the Library) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may opt to apply the terms of the ordinary GNU General Public License
+instead of this License to a given copy of the Library. To do this, you must
+alter all the notices that refer to this License, so that they refer to the
+ordinary GNU General Public License, version 2, instead of to this License.
+(If a newer version than version 2 of the ordinary GNU General Public License
+has appeared, then you can specify that version instead if you wish.) Do not
+make any other change in these notices.
+
+Once this change is made in a given copy, it is irreversible for that copy,
+so the ordinary GNU General Public License applies to all subsequent copies
+and derivative works made from that copy.
+
+This option is useful when you wish to copy part of the code of the Library
+into a program that is not a library.
+
+4. You may copy and distribute the Library (or a portion or derivative of
+it, under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you accompany it with the complete corresponding
+machine-readable source code, which must be distributed under the terms of
+Sections 1 and 2 above on a medium customarily used for software interchange.
+
+If distribution of object code is made by offering access to copy from a designated
+place, then offering equivalent access to copy the source code from the same
+place satisfies the requirement to distribute the source code, even though
+third parties are not compelled to copy the source along with the object code.
+
+5. A program that contains no derivative of any portion of the Library, but
+is designed to work with the Library by being compiled or linked with it,
+is called a "work that uses the Library". Such a work, in isolation, is not
+a derivative work of the Library, and therefore falls outside the scope of
+this License.
+
+However, linking a "work that uses the Library" with the Library creates an
+executable that is a derivative of the Library (because it contains portions
+of the Library), rather than a "work that uses the library". The executable
+is therefore covered by this License. Section 6 states terms for distribution
+of such executables.
+
+When a "work that uses the Library" uses material from a header file that
+is part of the Library, the object code for the work may be a derivative work
+of the Library even though the source code is not. Whether this is true is
+especially significant if the work can be linked without the Library, or if
+the work is itself a library. The threshold for this to be true is not precisely
+defined by law.
+
+If such an object file uses only numerical parameters, data structure layouts
+and accessors, and small macros and small inline functions (ten lines or less
+in length), then the use of the object file is unrestricted, regardless of
+whether it is legally a derivative work. (Executables containing this object
+code plus portions of the Library will still fall under Section 6.)
+
+Otherwise, if the work is a derivative of the Library, you may distribute
+the object code for the work under the terms of Section 6. Any executables
+containing that work also fall under Section 6, whether or not they are linked
+directly with the Library itself.
+
+6. As an exception to the Sections above, you may also combine or link a "work
+that uses the Library" with the Library to produce a work containing portions
+of the Library, and distribute that work under terms of your choice, provided
+that the terms permit modification of the work for the customer's own use
+and reverse engineering for debugging such modifications.
+
+You must give prominent notice with each copy of the work that the Library
+is used in it and that the Library and its use are covered by this License.
+You must supply a copy of this License. If the work during execution displays
+copyright notices, you must include the copyright notice for the Library among
+them, as well as a reference directing the user to the copy of this License.
+Also, you must do one of these things:
+
+a) Accompany the work with the complete corresponding machine-readable source
+code for the Library including whatever changes were used in the work (which
+must be distributed under Sections 1 and 2 above); and, if the work is an
+executable linked with the Library, with the complete machine-readable "work
+that uses the Library", as object code and/or source code, so that the user
+can modify the Library and then relink to produce a modified executable containing
+the modified Library. (It is understood that the user who changes the contents
+of definitions files in the Library will not necessarily be able to recompile
+the application to use the modified definitions.)
+
+b) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (1) uses at run time a copy of the library
+already present on the user's computer system, rather than copying library
+functions into the executable, and (2) will operate properly with a modified
+version of the library, if the user installs one, as long as the modified
+version is interface-compatible with the version that the work was made with.
+
+c) Accompany the work with a written offer, valid for at least three years,
+to give the same user the materials specified in Subsection 6a, above, for
+a charge no more than the cost of performing this distribution.
+
+d) If distribution of the work is made by offering access to copy from a designated
+place, offer equivalent access to copy the above specified materials from
+the same place.
+
+e) Verify that the user has already received a copy of these materials or
+that you have already sent this user a copy.
+
+For an executable, the required form of the "work that uses the Library" must
+include any data and utility programs needed for reproducing the executable
+from it. However, as a special exception, the materials to be distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+It may happen that this requirement contradicts the license restrictions of
+other proprietary libraries that do not normally accompany the operating system.
+Such a contradiction means you cannot use both them and the Library together
+in an executable that you distribute.
+
+7. You may place library facilities that are a work based on the Library side-by-side
+in a single library together with other library facilities not covered by
+this License, and distribute such a combined library, provided that the separate
+distribution of the work based on the Library and of the other library facilities
+is otherwise permitted, and provided that you do these two things:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities. This must be distributed
+under the terms of the Sections above.
+
+b) Give prominent notice with the combined library of the fact that part of
+it is a work based on the Library, and explaining where to find the accompanying
+uncombined form of the same work.
+
+8. You may not copy, modify, sublicense, link with, or distribute the Library
+except as expressly provided under this License. Any attempt otherwise to
+copy, modify, sublicense, link with, or distribute the Library is void, and
+will automatically terminate your rights under this License. However, parties
+who have received copies, or rights, from you under this License will not
+have their licenses terminated so long as such parties remain in full compliance.
+
+9. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Library or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Library
+(or any work based on the Library), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+10. Each time you redistribute the Library (or any work based on the Library),
+the recipient automatically receives a license from the original licensor
+to copy, distribute, link with or modify the Library subject to these terms
+and conditions. You may not impose any further restrictions on the recipients'
+exercise of the rights granted herein. You are not responsible for enforcing
+compliance by third parties with this License.
+
+11. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Library at all. For example, if a
+patent license would not permit royalty-free redistribution of the Library
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+12. If the distribution and/or use of the Library is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Library under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+13. The Free Software Foundation may publish revised and/or new versions of
+the Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Library does not specify a license version number, you may choose any version
+ever published by the Free Software Foundation.
+
+14. If you wish to incorporate parts of the Library into other free programs
+whose distribution conditions are incompatible with these, write to the author
+to ask for permission. For software which is copyrighted by the Free Software
+Foundation, write to the Free Software Foundation; we sometimes make exceptions
+for this. Our decision will be guided by the two goals of preserving the free
+status of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+   NO WARRANTY
+
+15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE LIBRARY
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Libraries
+
+If you develop a new library, and you want it to be of the greatest possible
+use to the public, we recommend making it free software that everyone can
+redistribute and change. You can do so by permitting redistribution under
+these terms (or, alternatively, under the terms of the ordinary General Public
+License).
+
+To apply these terms, attach the following notices to the library. It is safest
+to attach them to the start of each source file to most effectively convey
+the exclusion of warranty; and each file should have at least the "copyright"
+line and a pointer to where the full notice is found.
+
+< one line to give the library's name and an idea of what it does. >
+
+Copyright (C) < year > < name of author >
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 2.1 of the License, or (at your option)
+any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Also add information
+on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the library, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in
+
+the library `Frob' (a library for tweaking knobs) written
+
+by James Random Hacker.
+
+< signature of Ty Coon > , 1 April 1990
+
+Ty Coon, President of Vice
+
+That's all there is to it!
@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+This version of the GNU Lesser General Public License incorporates the terms
+and conditions of version 3 of the GNU General Public License, supplemented
+by the additional permissions listed below.
+
+   0. Additional Definitions.
+
+      
+
+As used herein, "this License" refers to version 3 of the GNU Lesser General
+Public License, and the "GNU GPL" refers to version 3 of the GNU General Public
+License.
+
+      
+
+"The Library" refers to a covered work governed by this License, other than
+an Application or a Combined Work as defined below.
+
+      
+
+An "Application" is any work that makes use of an interface provided by the
+Library, but which is not otherwise based on the Library. Defining a subclass
+of a class defined by the Library is deemed a mode of using an interface provided
+by the Library.
+
+      
+
+A "Combined Work" is a work produced by combining or linking an Application
+with the Library. The particular version of the Library with which the Combined
+Work was made is also called the "Linked Version".
+
+      
+
+The "Minimal Corresponding Source" for a Combined Work means the Corresponding
+Source for the Combined Work, excluding any source code for portions of the
+Combined Work that, considered in isolation, are based on the Application,
+and not on the Linked Version.
+
+      
+
+The "Corresponding Application Code" for a Combined Work means the object
+code and/or source code for the Application, including any data and utility
+programs needed for reproducing the Combined Work from the Application, but
+excluding the System Libraries of the Combined Work.
+
+   1. Exception to Section 3 of the GNU GPL.
+
+You may convey a covered work under sections 3 and 4 of this License without
+being bound by section 3 of the GNU GPL.
+
+   2. Conveying Modified Versions.
+
+If you modify a copy of the Library, and, in your modifications, a facility
+refers to a function or data to be supplied by an Application that uses the
+facility (other than as an argument passed when the facility is invoked),
+then you may convey a copy of the modified version:
+
+a) under this License, provided that you make a good faith effort to ensure
+that, in the event an Application does not supply the function or data, the
+facility still operates, and performs whatever part of its purpose remains
+meaningful, or
+
+b) under the GNU GPL, with none of the additional permissions of this License
+applicable to that copy.
+
+   3. Object Code Incorporating Material from Library Header Files.
+
+The object code form of an Application may incorporate material from a header
+file that is part of the Library. You may convey such object code under terms
+of your choice, provided that, if the incorporated material is not limited
+to numerical parameters, data structure layouts and accessors, or small macros,
+inline functions and templates (ten or fewer lines in length), you do both
+of the following:
+
+a) Give prominent notice with each copy of the object code that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the object code with a copy of the GNU GPL and this license document.
+
+   4. Combined Works.
+
+You may convey a Combined Work under terms of your choice that, taken together,
+effectively do not restrict modification of the portions of the Library contained
+in the Combined Work and reverse engineering for debugging such modifications,
+if you also do each of the following:
+
+a) Give prominent notice with each copy of the Combined Work that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the Combined Work with a copy of the GNU GPL and this license
+document.
+
+c) For a Combined Work that displays copyright notices during execution, include
+the copyright notice for the Library among these notices, as well as a reference
+directing the user to the copies of the GNU GPL and this license document.
+
+      d) Do one of the following:
+
+0) Convey the Minimal Corresponding Source under the terms of this License,
+and the Corresponding Application Code in a form suitable for, and under terms
+that permit, the user to recombine or relink the Application with a modified
+version of the Linked Version to produce a modified Combined Work, in the
+manner specified by section 6 of the GNU GPL for conveying Corresponding Source.
+
+1) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (a) uses at run time a copy of the Library
+already present on the user's computer system, and (b) will operate properly
+with a modified version of the Library that is interface-compatible with the
+Linked Version.
+
+e) Provide Installation Information, but only if you would otherwise be required
+to provide such information under section 6 of the GNU GPL, and only to the
+extent that such information is necessary to install and execute a modified
+version of the Combined Work produced by recombining or relinking the Application
+with a modified version of the Linked Version. (If you use option 4d0, the
+Installation Information must accompany the Minimal Corresponding Source and
+Corresponding Application Code. If you use option 4d1, you must provide the
+Installation Information in the manner specified by section 6 of the GNU GPL
+for conveying Corresponding Source.)
+
+   5. Combined Libraries.
+
+You may place library facilities that are a work based on the Library side
+by side in a single library together with other library facilities that are
+not Applications and are not covered by this License, and convey such a combined
+library under terms of your choice, if you do both of the following:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities, conveyed under the
+terms of this License.
+
+b) Give prominent notice with the combined library that part of it is a work
+based on the Library, and explaining where to find the accompanying uncombined
+form of the same work.
+
+   6. Revised Versions of the GNU Lesser General Public License.
+
+The Free Software Foundation may publish revised and/or new versions of the
+GNU Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library as you
+received it specifies that a certain numbered version of the GNU Lesser General
+Public License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that published version or of
+any later version published by the Free Software Foundation. If the Library
+as you received it does not specify a version number of the GNU Lesser General
+Public License, you may choose any version of the GNU Lesser General Public
+License ever published by the Free Software Foundation.
+
+If the Library as you received it specifies that a proxy can decide whether
+future versions of the GNU Lesser General Public License shall apply, that
+proxy's public statement of acceptance of any version is permanent authorization
+for you to choose that version for the Library.
@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of
+the license or (at your option) at any later version that is
+accepted by the membership of KDE e.V. (or its successor
+approved by the membership of KDE e.V.), which shall act as a
+proxy as defined in Section 14 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3 of the license or (at your option) any later version
+that is accepted by the membership of KDE e.V. (or its successor
+approved by the membership of KDE e.V.), which shall act as a
+proxy as defined in Section 6 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -0,0 +1,11 @@
+Copyright (c) <year> <owner>. 
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
+     communicate, and translate a Work;
+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
@@ -0,0 +1,468 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 2.1, February 1999
+
+Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts as the
+successor of the GNU Library Public License, version 2, hence the version
+number 2.1.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public Licenses are intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users.
+
+This license, the Lesser General Public License, applies to some specially
+designated software packages--typically libraries--of the Free Software Foundation
+and other authors who decide to use it. You can use it too, but we suggest
+you first think carefully about whether this license or the ordinary General
+Public License is the better strategy to use in any particular case, based
+on the explanations below.
+
+When we speak of free software, we are referring to freedom of use, not price.
+Our General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish); that you receive source code or can get it if you want it; that you
+can change the software and use pieces of it in new free programs; and that
+you are informed that you can do these things.
+
+To protect your rights, we need to make restrictions that forbid distributors
+to deny you these rights or to ask you to surrender these rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the library or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You must
+make sure that they, too, receive or can get the source code. If you link
+other code with the library, you must provide complete object files to the
+recipients, so that they can relink them with the library after making changes
+to the library and recompiling it. And you must show them these terms so they
+know their rights.
+
+We protect your rights with a two-step method: (1) we copyright the library,
+and (2) we offer you this license, which gives you legal permission to copy,
+distribute and/or modify the library.
+
+To protect each distributor, we want to make it very clear that there is no
+warranty for the free library. Also, if the library is modified by someone
+else and passed on, the recipients should know that what they have is not
+the original version, so that the original author's reputation will not be
+affected by problems that might be introduced by others.
+
+Finally, software patents pose a constant threat to the existence of any free
+program. We wish to make sure that a company cannot effectively restrict the
+users of a free program by obtaining a restrictive license from a patent holder.
+Therefore, we insist that any patent license obtained for a version of the
+library must be consistent with the full freedom of use specified in this
+license.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License. This license, the GNU Lesser General Public License,
+applies to certain designated libraries, and is quite different from the ordinary
+General Public License. We use this license for certain libraries in order
+to permit linking those libraries into non-free programs.
+
+When a program is linked with a library, whether statically or using a shared
+library, the combination of the two is legally speaking a combined work, a
+derivative of the original library. The ordinary General Public License therefore
+permits such linking only if the entire combination fits its criteria of freedom.
+The Lesser General Public License permits more lax criteria for linking other
+code with the library.
+
+We call this license the "Lesser" General Public License because it does Less
+to protect the user's freedom than the ordinary General Public License. It
+also provides other free software developers Less of an advantage over competing
+non-free programs. These disadvantages are the reason we use the ordinary
+General Public License for many libraries. However, the Lesser license provides
+advantages in certain special circumstances.
+
+For example, on rare occasions, there may be a special need to encourage the
+widest possible use of a certain library, so that it becomes a de-facto standard.
+To achieve this, non-free programs must be allowed to use the library. A more
+frequent case is that a free library does the same job as widely used non-free
+libraries. In this case, there is little to gain by limiting the free library
+to free software only, so we use the Lesser General Public License.
+
+In other cases, permission to use a particular library in non-free programs
+enables a greater number of people to use a large body of free software. For
+example, permission to use the GNU C Library in non-free programs enables
+many more people to use the whole GNU operating system, as well as its variant,
+the GNU/Linux operating system.
+
+Although the Lesser General Public License is Less protective of the users'
+freedom, it does ensure that the user of a program that is linked with the
+Library has the freedom and the wherewithal to run that program using a modified
+version of the Library.
+
+The precise terms and conditions for copying, distribution and modification
+follow. Pay close attention to the difference between a "work based on the
+library" and a "work that uses the library". The former contains code derived
+from the library, whereas the latter must be combined with the library in
+order to run.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License Agreement applies to any software library or other program
+which contains a notice placed by the copyright holder or other authorized
+party saying it may be distributed under the terms of this Lesser General
+Public License (also called "this License"). Each licensee is addressed as
+"you".
+
+A "library" means a collection of software functions and/or data prepared
+so as to be conveniently linked with application programs (which use some
+of those functions and data) to form executables.
+
+The "Library", below, refers to any such software library or work which has
+been distributed under these terms. A "work based on the Library" means either
+the Library or any derivative work under copyright law: that is to say, a
+work containing the Library or a portion of it, either verbatim or with modifications
+and/or translated straightforwardly into another language. (Hereinafter, translation
+is included without limitation in the term "modification".)
+
+"Source code" for a work means the preferred form of the work for making modifications
+to it. For a library, complete source code means all the source code for all
+modules it contains, plus any associated interface definition files, plus
+the scripts used to control compilation and installation of the library.
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running a program
+using the Library is not restricted, and output from such a program is covered
+only if its contents constitute a work based on the Library (independent of
+the use of the Library in a tool for writing it). Whether that is true depends
+on what the Library does and what the program that uses the Library does.
+
+1. You may copy and distribute verbatim copies of the Library's complete source
+code as you receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice and disclaimer
+of warranty; keep intact all the notices that refer to this License and to
+the absence of any warranty; and distribute a copy of this License along with
+the Library.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Library or any portion of it,
+thus forming a work based on the Library, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+      a) The modified work must itself be a software library.
+
+b) You must cause the files modified to carry prominent notices stating that
+you changed the files and the date of any change.
+
+c) You must cause the whole of the work to be licensed at no charge to all
+third parties under the terms of this License.
+
+d) If a facility in the modified Library refers to a function or a table of
+data to be supplied by an application program that uses the facility, other
+than as an argument passed when the facility is invoked, then you must make
+a good faith effort to ensure that, in the event an application does not supply
+such function or table, the facility still operates, and performs whatever
+part of its purpose remains meaningful.
+
+(For example, a function in a library to compute square roots has a purpose
+that is entirely well-defined independent of the application. Therefore, Subsection
+2d requires that any application-supplied function or table used by this function
+must be optional: if the application does not supply it, the square root function
+must still compute square roots.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Library, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Library, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Library.
+
+In addition, mere aggregation of another work not based on the Library with
+the Library (or with a work based on the Library) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may opt to apply the terms of the ordinary GNU General Public License
+instead of this License to a given copy of the Library. To do this, you must
+alter all the notices that refer to this License, so that they refer to the
+ordinary GNU General Public License, version 2, instead of to this License.
+(If a newer version than version 2 of the ordinary GNU General Public License
+has appeared, then you can specify that version instead if you wish.) Do not
+make any other change in these notices.
+
+Once this change is made in a given copy, it is irreversible for that copy,
+so the ordinary GNU General Public License applies to all subsequent copies
+and derivative works made from that copy.
+
+This option is useful when you wish to copy part of the code of the Library
+into a program that is not a library.
+
+4. You may copy and distribute the Library (or a portion or derivative of
+it, under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you accompany it with the complete corresponding
+machine-readable source code, which must be distributed under the terms of
+Sections 1 and 2 above on a medium customarily used for software interchange.
+
+If distribution of object code is made by offering access to copy from a designated
+place, then offering equivalent access to copy the source code from the same
+place satisfies the requirement to distribute the source code, even though
+third parties are not compelled to copy the source along with the object code.
+
+5. A program that contains no derivative of any portion of the Library, but
+is designed to work with the Library by being compiled or linked with it,
+is called a "work that uses the Library". Such a work, in isolation, is not
+a derivative work of the Library, and therefore falls outside the scope of
+this License.
+
+However, linking a "work that uses the Library" with the Library creates an
+executable that is a derivative of the Library (because it contains portions
+of the Library), rather than a "work that uses the library". The executable
+is therefore covered by this License. Section 6 states terms for distribution
+of such executables.
+
+When a "work that uses the Library" uses material from a header file that
+is part of the Library, the object code for the work may be a derivative work
+of the Library even though the source code is not. Whether this is true is
+especially significant if the work can be linked without the Library, or if
+the work is itself a library. The threshold for this to be true is not precisely
+defined by law.
+
+If such an object file uses only numerical parameters, data structure layouts
+and accessors, and small macros and small inline functions (ten lines or less
+in length), then the use of the object file is unrestricted, regardless of
+whether it is legally a derivative work. (Executables containing this object
+code plus portions of the Library will still fall under Section 6.)
+
+Otherwise, if the work is a derivative of the Library, you may distribute
+the object code for the work under the terms of Section 6. Any executables
+containing that work also fall under Section 6, whether or not they are linked
+directly with the Library itself.
+
+6. As an exception to the Sections above, you may also combine or link a "work
+that uses the Library" with the Library to produce a work containing portions
+of the Library, and distribute that work under terms of your choice, provided
+that the terms permit modification of the work for the customer's own use
+and reverse engineering for debugging such modifications.
+
+You must give prominent notice with each copy of the work that the Library
+is used in it and that the Library and its use are covered by this License.
+You must supply a copy of this License. If the work during execution displays
+copyright notices, you must include the copyright notice for the Library among
+them, as well as a reference directing the user to the copy of this License.
+Also, you must do one of these things:
+
+a) Accompany the work with the complete corresponding machine-readable source
+code for the Library including whatever changes were used in the work (which
+must be distributed under Sections 1 and 2 above); and, if the work is an
+executable linked with the Library, with the complete machine-readable "work
+that uses the Library", as object code and/or source code, so that the user
+can modify the Library and then relink to produce a modified executable containing
+the modified Library. (It is understood that the user who changes the contents
+of definitions files in the Library will not necessarily be able to recompile
+the application to use the modified definitions.)
+
+b) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (1) uses at run time a copy of the library
+already present on the user's computer system, rather than copying library
+functions into the executable, and (2) will operate properly with a modified
+version of the library, if the user installs one, as long as the modified
+version is interface-compatible with the version that the work was made with.
+
+c) Accompany the work with a written offer, valid for at least three years,
+to give the same user the materials specified in Subsection 6a, above, for
+a charge no more than the cost of performing this distribution.
+
+d) If distribution of the work is made by offering access to copy from a designated
+place, offer equivalent access to copy the above specified materials from
+the same place.
+
+e) Verify that the user has already received a copy of these materials or
+that you have already sent this user a copy.
+
+For an executable, the required form of the "work that uses the Library" must
+include any data and utility programs needed for reproducing the executable
+from it. However, as a special exception, the materials to be distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+It may happen that this requirement contradicts the license restrictions of
+other proprietary libraries that do not normally accompany the operating system.
+Such a contradiction means you cannot use both them and the Library together
+in an executable that you distribute.
+
+7. You may place library facilities that are a work based on the Library side-by-side
+in a single library together with other library facilities not covered by
+this License, and distribute such a combined library, provided that the separate
+distribution of the work based on the Library and of the other library facilities
+is otherwise permitted, and provided that you do these two things:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities. This must be distributed
+under the terms of the Sections above.
+
+b) Give prominent notice with the combined library of the fact that part of
+it is a work based on the Library, and explaining where to find the accompanying
+uncombined form of the same work.
+
+8. You may not copy, modify, sublicense, link with, or distribute the Library
+except as expressly provided under this License. Any attempt otherwise to
+copy, modify, sublicense, link with, or distribute the Library is void, and
+will automatically terminate your rights under this License. However, parties
+who have received copies, or rights, from you under this License will not
+have their licenses terminated so long as such parties remain in full compliance.
+
+9. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Library or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Library
+(or any work based on the Library), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+10. Each time you redistribute the Library (or any work based on the Library),
+the recipient automatically receives a license from the original licensor
+to copy, distribute, link with or modify the Library subject to these terms
+and conditions. You may not impose any further restrictions on the recipients'
+exercise of the rights granted herein. You are not responsible for enforcing
+compliance by third parties with this License.
+
+11. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Library at all. For example, if a
+patent license would not permit royalty-free redistribution of the Library
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+12. If the distribution and/or use of the Library is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Library under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+13. The Free Software Foundation may publish revised and/or new versions of
+the Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Library does not specify a license version number, you may choose any version
+ever published by the Free Software Foundation.
+
+14. If you wish to incorporate parts of the Library into other free programs
+whose distribution conditions are incompatible with these, write to the author
+to ask for permission. For software which is copyrighted by the Free Software
+Foundation, write to the Free Software Foundation; we sometimes make exceptions
+for this. Our decision will be guided by the two goals of preserving the free
+status of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+   NO WARRANTY
+
+15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE LIBRARY
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Libraries
+
+If you develop a new library, and you want it to be of the greatest possible
+use to the public, we recommend making it free software that everyone can
+redistribute and change. You can do so by permitting redistribution under
+these terms (or, alternatively, under the terms of the ordinary General Public
+License).
+
+To apply these terms, attach the following notices to the library. It is safest
+to attach them to the start of each source file to most effectively convey
+the exclusion of warranty; and each file should have at least the "copyright"
+line and a pointer to where the full notice is found.
+
+<one line to give the library's name and an idea of what it does.>
+
+Copyright (C) <year> <name of author>
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 2.1 of the License, or (at your option)
+any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the library, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in
+
+the library `Frob' (a library for tweaking knobs) written
+
+by James Random Hacker.
+
+< signature of Ty Coon > , 1 April 1990
+
+Ty Coon, President of Vice
+
+That's all there is to it!
@@ -0,0 +1,24 @@
+libFakeKey
+
+A simple library for converting utf8 chars into 'fake' keypresses.
+
+Uses ideas from Fontconfig, libvirtkeys.c, keysym2ucs.c and dasher. 
+
+Authored By Matthew Allum  <amllum@openedhand.com>
+
+Copyright (C) 2004 OpenedHand
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the
+Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.
@@ -0,0 +1,446 @@
+GNU LIBRARY GENERAL PUBLIC LICENSE
+
+Version 2, June 1991 Copyright (C) 1991 Free Software Foundation, Inc.
+
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+[This is the first released version of the library GPL. It is numbered 2 because
+it goes with version 2 of the ordinary GPL.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public Licenses are intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users.
+
+This license, the Library General Public License, applies to some specially
+designated Free Software Foundation software, and to any other libraries whose
+authors decide to use it. You can use it for your libraries, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the library, or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You must
+make sure that they, too, receive or can get the source code. If you link
+a program with the library, you must provide complete object files to the
+recipients so that they can relink them with the library, after making changes
+to the library and recompiling it. And you must show them these terms so they
+know their rights.
+
+Our method of protecting your rights has two steps: (1) copyright the library,
+and (2) offer you this license which gives you legal permission to copy, distribute
+and/or modify the library.
+
+Also, for each distributor's protection, we want to make certain that everyone
+understands that there is no warranty for this free library. If the library
+is modified by someone else and passed on, we want its recipients to know
+that what they have is not the original version, so that any problems introduced
+by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that companies distributing free software will individually
+obtain patent licenses, thus in effect transforming the program into proprietary
+software. To prevent this, we have made it clear that any patent must be licensed
+for everyone's free use or not licensed at all.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License, which was designed for utility programs. This license,
+the GNU Library General Public License, applies to certain designated libraries.
+This license is quite different from the ordinary one; be sure to read it
+in full, and don't assume that anything in it is the same as in the ordinary
+license.
+
+The reason we have a separate public license for some libraries is that they
+blur the distinction we usually make between modifying or adding to a program
+and simply using it. Linking a program with a library, without changing the
+library, is in some sense simply using the library, and is analogous to running
+a utility program or application program. However, in a textual and legal
+sense, the linked executable is a combined work, a derivative of the original
+library, and the ordinary General Public License treats it as such.
+
+Because of this blurred distinction, using the ordinary General Public License
+for libraries did not effectively promote software sharing, because most developers
+did not use the libraries. We concluded that weaker conditions might promote
+sharing better.
+
+However, unrestricted linking of non-free programs would deprive the users
+of those programs of all benefit from the free status of the libraries themselves.
+This Library General Public License is intended to permit developers of non-free
+programs to use free libraries, while preserving your freedom as a user of
+such programs to change the free libraries that are incorporated in them.
+(We have not seen how to achieve this as regards changes in header files,
+but we have achieved it as regards changes in the actual functions of the
+Library.) The hope is that this will lead to faster development of free libraries.
+
+The precise terms and conditions for copying, distribution and modification
+follow. Pay close attention to the difference between a "work based on the
+library" and a "work that uses the library". The former contains code derived
+from the library, while the latter only works together with the library.
+
+Note that it is possible for a library to be covered by the ordinary General
+Public License rather than by this special one.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License Agreement applies to any software library which contains a
+notice placed by the copyright holder or other authorized party saying it
+may be distributed under the terms of this Library General Public License
+(also called "this License"). Each licensee is addressed as "you".
+
+A "library" means a collection of software functions and/or data prepared
+so as to be conveniently linked with application programs (which use some
+of those functions and data) to form executables.
+
+The "Library", below, refers to any such software library or work which has
+been distributed under these terms. A "work based on the Library" means either
+the Library or any derivative work under copyright law: that is to say, a
+work containing the Library or a portion of it, either verbatim or with modifications
+and/or translated straightforwardly into another language. (Hereinafter, translation
+is included without limitation in the term "modification".)
+
+"Source code" for a work means the preferred form of the work for making modifications
+to it. For a library, complete source code means all the source code for all
+modules it contains, plus any associated interface definition files, plus
+the scripts used to control compilation and installation of the library.
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running a program
+using the Library is not restricted, and output from such a program is covered
+only if its contents constitute a work based on the Library (independent of
+the use of the Library in a tool for writing it). Whether that is true depends
+on what the Library does and what the program that uses the Library does.
+
+1. You may copy and distribute verbatim copies of the Library's complete source
+code as you receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice and disclaimer
+of warranty; keep intact all the notices that refer to this License and to
+the absence of any warranty; and distribute a copy of this License along with
+the Library.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Library or any portion of it,
+thus forming a work based on the Library, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+      a) The modified work must itself be a software library.
+
+b) You must cause the files modified to carry prominent notices stating that
+you changed the files and the date of any change.
+
+c) You must cause the whole of the work to be licensed at no charge to all
+third parties under the terms of this License.
+
+d) If a facility in the modified Library refers to a function or a table of
+data to be supplied by an application program that uses the facility, other
+than as an argument passed when the facility is invoked, then you must make
+a good faith effort to ensure that, in the event an application does not supply
+such function or table, the facility still operates, and performs whatever
+part of its purpose remains meaningful.
+
+(For example, a function in a library to compute square roots has a purpose
+that is entirely well-defined independent of the application. Therefore, Subsection
+2d requires that any application-supplied function or table used by this function
+must be optional: if the application does not supply it, the square root function
+must still compute square roots.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Library, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Library, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Library.
+
+In addition, mere aggregation of another work not based on the Library with
+the Library (or with a work based on the Library) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may opt to apply the terms of the ordinary GNU General Public License
+instead of this License to a given copy of the Library. To do this, you must
+alter all the notices that refer to this License, so that they refer to the
+ordinary GNU General Public License, version 2, instead of to this License.
+(If a newer version than version 2 of the ordinary GNU General Public License
+has appeared, then you can specify that version instead if you wish.) Do not
+make any other change in these notices.
+
+Once this change is made in a given copy, it is irreversible for that copy,
+so the ordinary GNU General Public License applies to all subsequent copies
+and derivative works made from that copy.
+
+This option is useful when you wish to copy part of the code of the Library
+into a program that is not a library.
+
+4. You may copy and distribute the Library (or a portion or derivative of
+it, under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you accompany it with the complete corresponding
+machine-readable source code, which must be distributed under the terms of
+Sections 1 and 2 above on a medium customarily used for software interchange.
+
+If distribution of object code is made by offering access to copy from a designated
+place, then offering equivalent access to copy the source code from the same
+place satisfies the requirement to distribute the source code, even though
+third parties are not compelled to copy the source along with the object code.
+
+5. A program that contains no derivative of any portion of the Library, but
+is designed to work with the Library by being compiled or linked with it,
+is called a "work that uses the Library". Such a work, in isolation, is not
+a derivative work of the Library, and therefore falls outside the scope of
+this License.
+
+However, linking a "work that uses the Library" with the Library creates an
+executable that is a derivative of the Library (because it contains portions
+of the Library), rather than a "work that uses the library". The executable
+is therefore covered by this License. Section 6 states terms for distribution
+of such executables.
+
+When a "work that uses the Library" uses material from a header file that
+is part of the Library, the object code for the work may be a derivative work
+of the Library even though the source code is not. Whether this is true is
+especially significant if the work can be linked without the Library, or if
+the work is itself a library. The threshold for this to be true is not precisely
+defined by law.
+
+If such an object file uses only numerical parameters, data structure layouts
+and accessors, and small macros and small inline functions (ten lines or less
+in length), then the use of the object file is unrestricted, regardless of
+whether it is legally a derivative work. (Executables containing this object
+code plus portions of the Library will still fall under Section 6.)
+
+Otherwise, if the work is a derivative of the Library, you may distribute
+the object code for the work under the terms of Section 6. Any executables
+containing that work also fall under Section 6, whether or not they are linked
+directly with the Library itself.
+
+6. As an exception to the Sections above, you may also compile or link a "work
+that uses the Library" with the Library to produce a work containing portions
+of the Library, and distribute that work under terms of your choice, provided
+that the terms permit modification of the work for the customer's own use
+and reverse engineering for debugging such modifications.
+
+You must give prominent notice with each copy of the work that the Library
+is used in it and that the Library and its use are covered by this License.
+You must supply a copy of this License. If the work during execution displays
+copyright notices, you must include the copyright notice for the Library among
+them, as well as a reference directing the user to the copy of this License.
+Also, you must do one of these things:
+
+a) Accompany the work with the complete corresponding machine-readable source
+code for the Library including whatever changes were used in the work (which
+must be distributed under Sections 1 and 2 above); and, if the work is an
+executable linked with the Library, with the complete machine-readable "work
+that uses the Library", as object code and/or source code, so that the user
+can modify the Library and then relink to produce a modified executable containing
+the modified Library. (It is understood that the user who changes the contents
+of definitions files in the Library will not necessarily be able to recompile
+the application to use the modified definitions.)
+
+b) Accompany the work with a written offer, valid for at least three years,
+to give the same user the materials specified in Subsection 6a, above, for
+a charge no more than the cost of performing this distribution.
+
+c) If distribution of the work is made by offering access to copy from a designated
+place, offer equivalent access to copy the above specified materials from
+the same place.
+
+d) Verify that the user has already received a copy of these materials or
+that you have already sent this user a copy.
+
+For an executable, the required form of the "work that uses the Library" must
+include any data and utility programs needed for reproducing the executable
+from it. However, as a special exception, the source code distributed need
+not include anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the operating
+system on which the executable runs, unless that component itself accompanies
+the executable.
+
+It may happen that this requirement contradicts the license restrictions of
+other proprietary libraries that do not normally accompany the operating system.
+Such a contradiction means you cannot use both them and the Library together
+in an executable that you distribute.
+
+7. You may place library facilities that are a work based on the Library side-by-side
+in a single library together with other library facilities not covered by
+this License, and distribute such a combined library, provided that the separate
+distribution of the work based on the Library and of the other library facilities
+is otherwise permitted, and provided that you do these two things:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities. This must be distributed
+under the terms of the Sections above.
+
+b) Give prominent notice with the combined library of the fact that part of
+it is a work based on the Library, and explaining where to find the accompanying
+uncombined form of the same work.
+
+8. You may not copy, modify, sublicense, link with, or distribute the Library
+except as expressly provided under this License. Any attempt otherwise to
+copy, modify, sublicense, link with, or distribute the Library is void, and
+will automatically terminate your rights under this License. However, parties
+who have received copies, or rights, from you under this License will not
+have their licenses terminated so long as such parties remain in full compliance.
+
+9. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Library or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Library
+(or any work based on the Library), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+10. Each time you redistribute the Library (or any work based on the Library),
+the recipient automatically receives a license from the original licensor
+to copy, distribute, link with or modify the Library subject to these terms
+and conditions. You may not impose any further restrictions on the recipients'
+exercise of the rights granted herein. You are not responsible for enforcing
+compliance by third parties to this License.
+
+11. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Library at all. For example, if a
+patent license would not permit royalty-free redistribution of the Library
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+12. If the distribution and/or use of the Library is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Library under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+13. The Free Software Foundation may publish revised and/or new versions of
+the Library General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Library does not specify a license version number, you may choose any version
+ever published by the Free Software Foundation.
+
+14. If you wish to incorporate parts of the Library into other free programs
+whose distribution conditions are incompatible with these, write to the author
+to ask for permission. For software which is copyrighted by the Free Software
+Foundation, write to the Free Software Foundation; we sometimes make exceptions
+for this. Our decision will be guided by the two goals of preserving the free
+status of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+   NO WARRANTY
+
+15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE LIBRARY
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Libraries
+
+If you develop a new library, and you want it to be of the greatest possible
+use to the public, we recommend making it free software that everyone can
+redistribute and change. You can do so by permitting redistribution under
+these terms (or, alternatively, under the terms of the ordinary General Public
+License).
+
+To apply these terms, attach the following notices to the library. It is safest
+to attach them to the start of each source file to most effectively convey
+the exclusion of warranty; and each file should have at least the "copyright"
+line and a pointer to where the full notice is found.
+
+one line to give the library's name and an idea of what it does.
+
+Copyright (C) year name of author
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Library General Public License as published by the Free
+Software Foundation; either version 2 of the License, or (at your option)
+any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
+details.
+
+You should have received a copy of the GNU Library General Public License
+along with this library; if not, write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the library, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in
+
+the library `Frob' (a library for tweaking knobs) written
+
+by James Random Hacker.
+
+signature of Ty Coon, 1 April 1990
+
+Ty Coon, President of Vice
+
+That's all there is to it!
@@ -0,0 +1,26 @@
+Copyright (c) <year> <owner>. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
+     communicate, and translate a Work;
+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
@@ -0,0 +1,319 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 2, June 1991
+
+Copyright (C) 1989, 1991 Free Software Foundation, Inc. 
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public License is intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users. This General Public License applies to
+most of the Free Software Foundation's software and to any other program whose
+authors commit to using it. (Some other Free Software Foundation software
+is covered by the GNU Lesser General Public License instead.) You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the software, or if you modify it.
+
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must give the recipients all the rights that you have. You
+must make sure that they, too, receive or can get the source code. And you
+must show them these terms so they know their rights.
+
+We protect your rights with two steps: (1) copyright the software, and (2)
+offer you this license which gives you legal permission to copy, distribute
+and/or modify the software.
+
+Also, for each author's protection and ours, we want to make certain that
+everyone understands that there is no warranty for this free software. If
+the software is modified by someone else and passed on, we want its recipients
+to know that what they have is not the original, so that any problems introduced
+by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that redistributors of a free program will individually
+obtain patent licenses, in effect making the program proprietary. To prevent
+this, we have made it clear that any patent must be licensed for everyone's
+free use or not licensed at all.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License applies to any program or other work which contains a notice
+placed by the copyright holder saying it may be distributed under the terms
+of this General Public License. The "Program", below, refers to any such program
+or work, and a "work based on the Program" means either the Program or any
+derivative work under copyright law: that is to say, a work containing the
+Program or a portion of it, either verbatim or with modifications and/or translated
+into another language. (Hereinafter, translation is included without limitation
+in the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running the Program
+is not restricted, and the output from the Program is covered only if its
+contents constitute a work based on the Program (independent of having been
+made by running the Program). Whether that is true depends on what the Program
+does.
+
+1. You may copy and distribute verbatim copies of the Program's source code
+as you receive it, in any medium, provided that you conspicuously and appropriately
+publish on each copy an appropriate copyright notice and disclaimer of warranty;
+keep intact all the notices that refer to this License and to the absence
+of any warranty; and give any other recipients of the Program a copy of this
+License along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Program or any portion of it,
+thus forming a work based on the Program, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+a) You must cause the modified files to carry prominent notices stating that
+you changed the files and the date of any change.
+
+b) You must cause any work that you distribute or publish, that in whole or
+in part contains or is derived from the Program or any part thereof, to be
+licensed as a whole at no charge to all third parties under the terms of this
+License.
+
+c) If the modified program normally reads commands interactively when run,
+you must cause it, when started running for such interactive use in the most
+ordinary way, to print or display an announcement including an appropriate
+copyright notice and a notice that there is no warranty (or else, saying that
+you provide a warranty) and that users may redistribute the program under
+these conditions, and telling the user how to view a copy of this License.
+(Exception: if the Program itself is interactive but does not normally print
+such an announcement, your work based on the Program is not required to print
+an announcement.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Program, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Program, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Program.
+
+In addition, mere aggregation of another work not based on the Program with
+the Program (or with a work based on the Program) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may copy and distribute the Program (or a work based on it, under Section
+2) in object code or executable form under the terms of Sections 1 and 2 above
+provided that you also do one of the following:
+
+a) Accompany it with the complete corresponding machine-readable source code,
+which must be distributed under the terms of Sections 1 and 2 above on a medium
+customarily used for software interchange; or,
+
+b) Accompany it with a written offer, valid for at least three years, to give
+any third party, for a charge no more than your cost of physically performing
+source distribution, a complete machine-readable copy of the corresponding
+source code, to be distributed under the terms of Sections 1 and 2 above on
+a medium customarily used for software interchange; or,
+
+c) Accompany it with the information you received as to the offer to distribute
+corresponding source code. (This alternative is allowed only for noncommercial
+distribution and only if you received the program in object code or executable
+form with such an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for making
+modifications to it. For an executable work, complete source code means all
+the source code for all modules it contains, plus any associated interface
+definition files, plus the scripts used to control compilation and installation
+of the executable. However, as a special exception, the source code distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+If distribution of executable or object code is made by offering access to
+copy from a designated place, then offering equivalent access to copy the
+source code from the same place counts as distribution of the source code,
+even though third parties are not compelled to copy the source along with
+the object code.
+
+4. You may not copy, modify, sublicense, or distribute the Program except
+as expressly provided under this License. Any attempt otherwise to copy, modify,
+sublicense or distribute the Program is void, and will automatically terminate
+your rights under this License. However, parties who have received copies,
+or rights, from you under this License will not have their licenses terminated
+so long as such parties remain in full compliance.
+
+5. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Program or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Program
+(or any work based on the Program), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+6. Each time you redistribute the Program (or any work based on the Program),
+the recipient automatically receives a license from the original licensor
+to copy, distribute or modify the Program subject to these terms and conditions.
+You may not impose any further restrictions on the recipients' exercise of
+the rights granted herein. You are not responsible for enforcing compliance
+by third parties to this License.
+
+7. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Program at all. For example, if a
+patent license would not permit royalty-free redistribution of the Program
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply and
+the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system, which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+8. If the distribution and/or use of the Program is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Program under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+9. The Free Software Foundation may publish revised and/or new versions of
+the General Public License from time to time. Such new versions will be similar
+in spirit to the present version, but may differ in detail to address new
+problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of this License, you may choose
+any version ever published by the Free Software Foundation.
+
+10. If you wish to incorporate parts of the Program into other free programs
+whose distribution conditions are different, write to the author to ask for
+permission. For software which is copyrighted by the Free Software Foundation,
+write to the Free Software Foundation; we sometimes make exceptions for this.
+Our decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing and reuse
+of software generally.
+
+   NO WARRANTY
+
+11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
+use to the public, the best way to achieve this is to make it free software
+which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively convey the exclusion
+of warranty; and each file should have at least the "copyright" line and a
+pointer to where the full notice is found.
+
+<one line to give the program's name and an idea of what it does.>
+
+Copyright (C)< yyyy> <name of author>
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this when
+it starts in an interactive mode:
+
+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
+with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software,
+and you are welcome to redistribute it under certain conditions; type `show
+c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may be
+called something other than `show w' and `show c'; they could even be mouse-clicks
+or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the program, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision'
+(which makes passes at compilers) written by James Hacker.
+
+<signature of Ty Coon >, 1 April 1989 Ty Coon, President of Vice This General
+Public License does not permit incorporating your program into proprietary
+programs. If your program is a subroutine library, you may consider it more
+useful to permit linking proprietary applications with the library. If this
+is what you want to do, use the GNU Lesser General Public License instead
+of this License.
@@ -0,0 +1,625 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for software and
+other kinds of works.
+
+The licenses for most software and other practical works are designed to take
+away your freedom to share and change the works. By contrast, the GNU General
+Public License is intended to guarantee your freedom to share and change all
+versions of a program--to make sure it remains free software for all its users.
+We, the Free Software Foundation, use the GNU General Public License for most
+of our software; it applies also to any other work released this way by its
+authors. You can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for them if you wish), that
+you receive source code or can get it if you want it, that you can change
+the software or use pieces of it in new free programs, and that you know you
+can do these things.
+
+To protect your rights, we need to prevent others from denying you these rights
+or asking you to surrender the rights. Therefore, you have certain responsibilities
+if you distribute copies of the software, or if you modify it: responsibilities
+to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must pass on to the recipients the same freedoms that you received.
+You must make sure that they, too, receive or can get the source code. And
+you must show them these terms so they know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps: (1) assert
+copyright on the software, and (2) offer you this License giving you legal
+permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains that
+there is no warranty for this free software. For both users' and authors'
+sake, the GPL requires that modified versions be marked as changed, so that
+their problems will not be attributed erroneously to authors of previous versions.
+
+Some devices are designed to deny users access to install or run modified
+versions of the software inside them, although the manufacturer can do so.
+This is fundamentally incompatible with the aim of protecting users' freedom
+to change the software. The systematic pattern of such abuse occurs in the
+area of products for individuals to use, which is precisely where it is most
+unacceptable. Therefore, we have designed this version of the GPL to prohibit
+the practice for those products. If such problems arise substantially in other
+domains, we stand ready to extend this provision to those domains in future
+versions of the GPL, as needed to protect the freedom of users.
+
+Finally, every program is threatened constantly by software patents. States
+should not allow patents to restrict development and use of software on general-purpose
+computers, but in those that do, we wish to avoid the special danger that
+patents applied to a free program could make it effectively proprietary. To
+prevent this, the GPL assures that patents cannot be used to render the program
+non-free.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS
+
+   0. Definitions.
+
+   "This License" refers to version 3 of the GNU General Public License.
+
+"Copyright" also means copyright-like laws that apply to other kinds of works,
+such as semiconductor masks.
+
+"The Program" refers to any copyrightable work licensed under this License.
+Each licensee is addressed as "you". "Licensees" and "recipients" may be individuals
+or organizations.
+
+To "modify" a work means to copy from or adapt all or part of the work in
+a fashion requiring copyright permission, other than the making of an exact
+copy. The resulting work is called a "modified version" of the earlier work
+or a work "based on" the earlier work.
+
+A "covered work" means either the unmodified Program or a work based on the
+Program.
+
+To "propagate" a work means to do anything with it that, without permission,
+would make you directly or secondarily liable for infringement under applicable
+copyright law, except executing it on a computer or modifying a private copy.
+Propagation includes copying, distribution (with or without modification),
+making available to the public, and in some countries other activities as
+well.
+
+To "convey" a work means any kind of propagation that enables other parties
+to make or receive copies. Mere interaction with a user through a computer
+network, with no transfer of a copy, is not conveying.
+
+An interactive user interface displays "Appropriate Legal Notices" to the
+extent that it includes a convenient and prominently visible feature that
+(1) displays an appropriate copyright notice, and (2) tells the user that
+there is no warranty for the work (except to the extent that warranties are
+provided), that licensees may convey the work under this License, and how
+to view a copy of this License. If the interface presents a list of user commands
+or options, such as a menu, a prominent item in the list meets this criterion.
+
+   1. Source Code.
+
+The "source code" for a work means the preferred form of the work for making
+modifications to it. "Object code" means any non-source form of a work.
+
+A "Standard Interface" means an interface that either is an official standard
+defined by a recognized standards body, or, in the case of interfaces specified
+for a particular programming language, one that is widely used among developers
+working in that language.
+
+The "System Libraries" of an executable work include anything, other than
+the work as a whole, that (a) is included in the normal form of packaging
+a Major Component, but which is not part of that Major Component, and (b)
+serves only to enable use of the work with that Major Component, or to implement
+a Standard Interface for which an implementation is available to the public
+in source code form. A "Major Component", in this context, means a major essential
+component (kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to produce
+the work, or an object code interpreter used to run it.
+
+The "Corresponding Source" for a work in object code form means all the source
+code needed to generate, install, and (for an executable work) run the object
+code and to modify the work, including scripts to control those activities.
+However, it does not include the work's System Libraries, or general-purpose
+tools or generally available free programs which are used unmodified in performing
+those activities but which are not part of the work. For example, Corresponding
+Source includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically linked
+subprograms that the work is specifically designed to require, such as by
+intimate data communication or control flow between those subprograms and
+other parts of the work.
+
+The Corresponding Source need not include anything that users can regenerate
+automatically from other parts of the Corresponding Source.
+
+   The Corresponding Source for a work in source code form is that same work.
+
+   2. Basic Permissions.
+
+All rights granted under this License are granted for the term of copyright
+on the Program, and are irrevocable provided the stated conditions are met.
+This License explicitly affirms your unlimited permission to run the unmodified
+Program. The output from running a covered work is covered by this License
+only if the output, given its content, constitutes a covered work. This License
+acknowledges your rights of fair use or other equivalent, as provided by copyright
+law.
+
+You may make, run and propagate covered works that you do not convey, without
+conditions so long as your license otherwise remains in force. You may convey
+covered works to others for the sole purpose of having them make modifications
+exclusively for you, or provide you with facilities for running those works,
+provided that you comply with the terms of this License in conveying all material
+for which you do not control copyright. Those thus making or running the covered
+works for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of your copyrighted
+material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under the conditions
+stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
+
+   3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological measure
+under any applicable law fulfilling obligations under article 11 of the WIPO
+copyright treaty adopted on 20 December 1996, or similar laws prohibiting
+or restricting circumvention of such measures.
+
+When you convey a covered work, you waive any legal power to forbid circumvention
+of technological measures to the extent such circumvention is effected by
+exercising rights under this License with respect to the covered work, and
+you disclaim any intention to limit operation or modification of the work
+as a means of enforcing, against the work's users, your or third parties'
+legal rights to forbid circumvention of technological measures.
+
+   4. Conveying Verbatim Copies.
+
+You may convey verbatim copies of the Program's source code as you receive
+it, in any medium, provided that you conspicuously and appropriately publish
+on each copy an appropriate copyright notice; keep intact all notices stating
+that this License and any non-permissive terms added in accord with section
+7 apply to the code; keep intact all notices of the absence of any warranty;
+and give all recipients a copy of this License along with the Program.
+
+You may charge any price or no price for each copy that you convey, and you
+may offer support or warranty protection for a fee.
+
+   5. Conveying Modified Source Versions.
+
+You may convey a work based on the Program, or the modifications to produce
+it from the Program, in the form of source code under the terms of section
+4, provided that you also meet all of these conditions:
+
+a) The work must carry prominent notices stating that you modified it, and
+giving a relevant date.
+
+b) The work must carry prominent notices stating that it is released under
+this License and any conditions added under section 7. This requirement modifies
+the requirement in section 4 to "keep intact all notices".
+
+c) You must license the entire work, as a whole, under this License to anyone
+who comes into possession of a copy. This License will therefore apply, along
+with any applicable section 7 additional terms, to the whole of the work,
+and all its parts, regardless of how they are packaged. This License gives
+no permission to license the work in any other way, but it does not invalidate
+such permission if you have separately received it.
+
+d) If the work has interactive user interfaces, each must display Appropriate
+Legal Notices; however, if the Program has interactive interfaces that do
+not display Appropriate Legal Notices, your work need not make them do so.
+
+A compilation of a covered work with other separate and independent works,
+which are not by their nature extensions of the covered work, and which are
+not combined with it such as to form a larger program, in or on a volume of
+a storage or distribution medium, is called an "aggregate" if the compilation
+and its resulting copyright are not used to limit the access or legal rights
+of the compilation's users beyond what the individual works permit. Inclusion
+of a covered work in an aggregate does not cause this License to apply to
+the other parts of the aggregate.
+
+   6. Conveying Non-Source Forms.
+
+You may convey a covered work in object code form under the terms of sections
+4 and 5, provided that you also convey the machine-readable Corresponding
+Source under the terms of this License, in one of these ways:
+
+a) Convey the object code in, or embodied in, a physical product (including
+a physical distribution medium), accompanied by the Corresponding Source fixed
+on a durable physical medium customarily used for software interchange.
+
+b) Convey the object code in, or embodied in, a physical product (including
+a physical distribution medium), accompanied by a written offer, valid for
+at least three years and valid for as long as you offer spare parts or customer
+support for that product model, to give anyone who possesses the object code
+either (1) a copy of the Corresponding Source for all the software in the
+product that is covered by this License, on a durable physical medium customarily
+used for software interchange, for a price no more than your reasonable cost
+of physically performing this conveying of source, or (2) access to copy the
+Corresponding Source from a network server at no charge.
+
+c) Convey individual copies of the object code with a copy of the written
+offer to provide the Corresponding Source. This alternative is allowed only
+occasionally and noncommercially, and only if you received the object code
+with such an offer, in accord with subsection 6b.
+
+d) Convey the object code by offering access from a designated place (gratis
+or for a charge), and offer equivalent access to the Corresponding Source
+in the same way through the same place at no further charge. You need not
+require recipients to copy the Corresponding Source along with the object
+code. If the place to copy the object code is a network server, the Corresponding
+Source may be on a different server (operated by you or a third party) that
+supports equivalent copying facilities, provided you maintain clear directions
+next to the object code saying where to find the Corresponding Source. Regardless
+of what server hosts the Corresponding Source, you remain obligated to ensure
+that it is available for as long as needed to satisfy these requirements.
+
+e) Convey the object code using peer-to-peer transmission, provided you inform
+other peers where the object code and Corresponding Source of the work are
+being offered to the general public at no charge under subsection 6d.
+
+A separable portion of the object code, whose source code is excluded from
+the Corresponding Source as a System Library, need not be included in conveying
+the object code work.
+
+A "User Product" is either (1) a "consumer product", which means any tangible
+personal property which is normally used for personal, family, or household
+purposes, or (2) anything designed or sold for incorporation into a dwelling.
+In determining whether a product is a consumer product, doubtful cases shall
+be resolved in favor of coverage. For a particular product received by a particular
+user, "normally used" refers to a typical or common use of that class of product,
+regardless of the status of the particular user or of the way in which the
+particular user actually uses, or expects or is expected to use, the product.
+A product is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent the
+only significant mode of use of the product.
+
+"Installation Information" for a User Product means any methods, procedures,
+authorization keys, or other information required to install and execute modified
+versions of a covered work in that User Product from a modified version of
+its Corresponding Source. The information must suffice to ensure that the
+continued functioning of the modified object code is in no case prevented
+or interfered with solely because modification has been made.
+
+If you convey an object code work under this section in, or with, or specifically
+for use in, a User Product, and the conveying occurs as part of a transaction
+in which the right of possession and use of the User Product is transferred
+to the recipient in perpetuity or for a fixed term (regardless of how the
+transaction is characterized), the Corresponding Source conveyed under this
+section must be accompanied by the Installation Information. But this requirement
+does not apply if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has been installed
+in ROM).
+
+The requirement to provide Installation Information does not include a requirement
+to continue to provide support service, warranty, or updates for a work that
+has been modified or installed by the recipient, or for the User Product in
+which it has been modified or installed. Access to a network may be denied
+when the modification itself materially and adversely affects the operation
+of the network or violates the rules and protocols for communication across
+the network.
+
+Corresponding Source conveyed, and Installation Information provided, in accord
+with this section must be in a format that is publicly documented (and with
+an implementation available to the public in source code form), and must require
+no special password or key for unpacking, reading or copying.
+
+   7. Additional Terms.
+
+"Additional permissions" are terms that supplement the terms of this License
+by making exceptions from one or more of its conditions. Additional permissions
+that are applicable to the entire Program shall be treated as though they
+were included in this License, to the extent that they are valid under applicable
+law. If additional permissions apply only to part of the Program, that part
+may be used separately under those permissions, but the entire Program remains
+governed by this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option remove any
+additional permissions from that copy, or from any part of it. (Additional
+permissions may be written to require their own removal in certain cases when
+you modify the work.) You may place additional permissions on material, added
+by you to a covered work, for which you have or can give appropriate copyright
+permission.
+
+Notwithstanding any other provision of this License, for material you add
+to a covered work, you may (if authorized by the copyright holders of that
+material) supplement the terms of this License with terms:
+
+a) Disclaiming warranty or limiting liability differently from the terms of
+sections 15 and 16 of this License; or
+
+b) Requiring preservation of specified reasonable legal notices or author
+attributions in that material or in the Appropriate Legal Notices displayed
+by works containing it; or
+
+c) Prohibiting misrepresentation of the origin of that material, or requiring
+that modified versions of such material be marked in reasonable ways as different
+from the original version; or
+
+d) Limiting the use for publicity purposes of names of licensors or authors
+of the material; or
+
+e) Declining to grant rights under trademark law for use of some trade names,
+trademarks, or service marks; or
+
+f) Requiring indemnification of licensors and authors of that material by
+anyone who conveys the material (or modified versions of it) with contractual
+assumptions of liability to the recipient, for any liability that these contractual
+assumptions directly impose on those licensors and authors.
+
+All other non-permissive additional terms are considered "further restrictions"
+within the meaning of section 10. If the Program as you received it, or any
+part of it, contains a notice stating that it is governed by this License
+along with a term that is a further restriction, you may remove that term.
+If a license document contains a further restriction but permits relicensing
+or conveying under this License, you may add to a covered work material governed
+by the terms of that license document, provided that the further restriction
+does not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you must place,
+in the relevant source files, a statement of the additional terms that apply
+to those files, or a notice indicating where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the form
+of a separately written license, or stated as exceptions; the above requirements
+apply either way.
+
+   8. Termination.
+
+You may not propagate or modify a covered work except as expressly provided
+under this License. Any attempt otherwise to propagate or modify it is void,
+and will automatically terminate your rights under this License (including
+any patent licenses granted under the third paragraph of section 11).
+
+However, if you cease all violation of this License, then your license from
+a particular copyright holder is reinstated (a) provisionally, unless and
+until the copyright holder explicitly and finally terminates your license,
+and (b) permanently, if the copyright holder fails to notify you of the violation
+by some reasonable means prior to 60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is reinstated permanently
+if the copyright holder notifies you of the violation by some reasonable means,
+this is the first time you have received notice of violation of this License
+(for any work) from that copyright holder, and you cure the violation prior
+to 30 days after your receipt of the notice.
+
+Termination of your rights under this section does not terminate the licenses
+of parties who have received copies or rights from you under this License.
+If your rights have been terminated and not permanently reinstated, you do
+not qualify to receive new licenses for the same material under section 10.
+
+   9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run a copy
+of the Program. Ancillary propagation of a covered work occurring solely as
+a consequence of using peer-to-peer transmission to receive a copy likewise
+does not require acceptance. However, nothing other than this License grants
+you permission to propagate or modify any covered work. These actions infringe
+copyright if you do not accept this License. Therefore, by modifying or propagating
+a covered work, you indicate your acceptance of this License to do so.
+
+   10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically receives
+a license from the original licensors, to run, modify and propagate that work,
+subject to this License. You are not responsible for enforcing compliance
+by third parties with this License.
+
+An "entity transaction" is a transaction transferring control of an organization,
+or substantially all assets of one, or subdividing an organization, or merging
+organizations. If propagation of a covered work results from an entity transaction,
+each party to that transaction who receives a copy of the work also receives
+whatever licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the Corresponding
+Source of the work from the predecessor in interest, if the predecessor has
+it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the rights
+granted or affirmed under this License. For example, you may not impose a
+license fee, royalty, or other charge for exercise of rights granted under
+this License, and you may not initiate litigation (including a cross-claim
+or counterclaim in a lawsuit) alleging that any patent claim is infringed
+by making, using, selling, offering for sale, or importing the Program or
+any portion of it.
+
+   11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this License
+of the Program or a work on which the Program is based. The work thus licensed
+is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned or controlled
+by the contributor, whether already acquired or hereafter acquired, that would
+be infringed by some manner, permitted by this License, of making, using,
+or selling its contributor version, but do not include claims that would be
+infringed only as a consequence of further modification of the contributor
+version. For purposes of this definition, "control" includes the right to
+grant patent sublicenses in a manner consistent with the requirements of this
+License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free patent
+license under the contributor's essential patent claims, to make, use, sell,
+offer for sale, import and otherwise run, modify and propagate the contents
+of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express agreement
+or commitment, however denominated, not to enforce a patent (such as an express
+permission to practice a patent or covenant not to sue for patent infringement).
+To "grant" such a patent license to a party means to make such an agreement
+or commitment not to enforce a patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license, and the
+Corresponding Source of the work is not available for anyone to copy, free
+of charge and under the terms of this License, through a publicly available
+network server or other readily accessible means, then you must either (1)
+cause the Corresponding Source to be so available, or (2) arrange to deprive
+yourself of the benefit of the patent license for this particular work, or
+(3) arrange, in a manner consistent with the requirements of this License,
+to extend the patent license to downstream recipients. "Knowingly relying"
+means you have actual knowledge that, but for the patent license, your conveying
+the covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that country
+that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or arrangement,
+you convey, or propagate by procuring conveyance of, a covered work, and grant
+a patent license to some of the parties receiving the covered work authorizing
+them to use, propagate, modify or convey a specific copy of the covered work,
+then the patent license you grant is automatically extended to all recipients
+of the covered work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the scope
+of its coverage, prohibits the exercise of, or is conditioned on the non-exercise
+of one or more of the rights that are specifically granted under this License.
+You may not convey a covered work if you are a party to an arrangement with
+a third party that is in the business of distributing software, under which
+you make payment to the third party based on the extent of your activity of
+conveying the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by you
+(or copies made from those copies), or (b) primarily for and in connection
+with specific products or compilations that contain the covered work, unless
+you entered into that arrangement, or that patent license was granted, prior
+to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied
+license or other defenses to infringement that may otherwise be available
+to you under applicable patent law.
+
+   12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or otherwise)
+that contradict the conditions of this License, they do not excuse you from
+the conditions of this License. If you cannot convey a covered work so as
+to satisfy simultaneously your obligations under this License and any other
+pertinent obligations, then as a consequence you may not convey it at all.
+For example, if you agree to terms that obligate you to collect a royalty
+for further conveying from those to whom you convey the Program, the only
+way you could satisfy both those terms and this License would be to refrain
+entirely from conveying the Program.
+
+   13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have permission to
+link or combine any covered work with a work licensed under version 3 of the
+GNU Affero General Public License into a single combined work, and to convey
+the resulting work. The terms of this License will continue to apply to the
+part which is the covered work, but the special requirements of the GNU Affero
+General Public License, section 13, concerning interaction through a network
+will apply to the combination as such.
+
+   14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the
+GNU General Public License from time to time. Such new versions will be similar
+in spirit to the present version, but may differ in detail to address new
+problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
+that a certain numbered version of the GNU General Public License "or any
+later version" applies to it, you have the option of following the terms and
+conditions either of that numbered version or of any later version published
+by the Free Software Foundation. If the Program does not specify a version
+number of the GNU General Public License, you may choose any version ever
+published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of
+the GNU General Public License can be used, that proxy's public statement
+of acceptance of a version permanently authorizes you to choose that version
+for the Program.
+
+Later license versions may give you additional or different permissions. However,
+no additional obligations are imposed on any author or copyright holder as
+a result of your choosing to follow a later version.
+
+   15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE
+LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
+EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM
+PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+   16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL
+ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM
+AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO
+USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
+INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE
+PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+   17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided above cannot
+be given local legal effect according to their terms, reviewing courts shall
+apply local law that most closely approximates an absolute waiver of all civil
+liability in connection with the Program, unless a warranty or assumption
+of liability accompanies a copy of the Program in return for a fee. END OF
+TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
+use to the public, the best way to achieve this is to make it free software
+which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively state the exclusion
+of warranty; and each file should have at least the "copyright" line and a
+pointer to where the full notice is found.
+
+<one line to give the program's name and a brief idea of what it does.>
+
+Copyright (C) <year> <name of author>
+
+This program is free software: you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like
+this when it starts in an interactive mode:
+
+<program> Copyright (C) <year> <name of author>
+
+This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+
+This is free software, and you are welcome to redistribute it under certain
+conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands might
+be different; for a GUI interface, you would use an "about box".
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary. For
+more information on this, and how to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General Public
+License instead of this License. But first, please read <https://www.gnu.org/
+licenses /why-not-lgpl.html>.
@@ -0,0 +1,467 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 2.1, February 1999
+
+Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts as the
+successor of the GNU Library Public License, version 2, hence the version
+number 2.1.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public Licenses are intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users.
+
+This license, the Lesser General Public License, applies to some specially
+designated software packages--typically libraries--of the Free Software Foundation
+and other authors who decide to use it. You can use it too, but we suggest
+you first think carefully about whether this license or the ordinary General
+Public License is the better strategy to use in any particular case, based
+on the explanations below.
+
+When we speak of free software, we are referring to freedom of use, not price.
+Our General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish); that you receive source code or can get it if you want it; that you
+can change the software and use pieces of it in new free programs; and that
+you are informed that you can do these things.
+
+To protect your rights, we need to make restrictions that forbid distributors
+to deny you these rights or to ask you to surrender these rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the library or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You must
+make sure that they, too, receive or can get the source code. If you link
+other code with the library, you must provide complete object files to the
+recipients, so that they can relink them with the library after making changes
+to the library and recompiling it. And you must show them these terms so they
+know their rights.
+
+We protect your rights with a two-step method: (1) we copyright the library,
+and (2) we offer you this license, which gives you legal permission to copy,
+distribute and/or modify the library.
+
+To protect each distributor, we want to make it very clear that there is no
+warranty for the free library. Also, if the library is modified by someone
+else and passed on, the recipients should know that what they have is not
+the original version, so that the original author's reputation will not be
+affected by problems that might be introduced by others.
+
+Finally, software patents pose a constant threat to the existence of any free
+program. We wish to make sure that a company cannot effectively restrict the
+users of a free program by obtaining a restrictive license from a patent holder.
+Therefore, we insist that any patent license obtained for a version of the
+library must be consistent with the full freedom of use specified in this
+license.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License. This license, the GNU Lesser General Public License,
+applies to certain designated libraries, and is quite different from the ordinary
+General Public License. We use this license for certain libraries in order
+to permit linking those libraries into non-free programs.
+
+When a program is linked with a library, whether statically or using a shared
+library, the combination of the two is legally speaking a combined work, a
+derivative of the original library. The ordinary General Public License therefore
+permits such linking only if the entire combination fits its criteria of freedom.
+The Lesser General Public License permits more lax criteria for linking other
+code with the library.
+
+We call this license the "Lesser" General Public License because it does Less
+to protect the user's freedom than the ordinary General Public License. It
+also provides other free software developers Less of an advantage over competing
+non-free programs. These disadvantages are the reason we use the ordinary
+General Public License for many libraries. However, the Lesser license provides
+advantages in certain special circumstances.
+
+For example, on rare occasions, there may be a special need to encourage the
+widest possible use of a certain library, so that it becomes a de-facto standard.
+To achieve this, non-free programs must be allowed to use the library. A more
+frequent case is that a free library does the same job as widely used non-free
+libraries. In this case, there is little to gain by limiting the free library
+to free software only, so we use the Lesser General Public License.
+
+In other cases, permission to use a particular library in non-free programs
+enables a greater number of people to use a large body of free software. For
+example, permission to use the GNU C Library in non-free programs enables
+many more people to use the whole GNU operating system, as well as its variant,
+the GNU/Linux operating system.
+
+Although the Lesser General Public License is Less protective of the users'
+freedom, it does ensure that the user of a program that is linked with the
+Library has the freedom and the wherewithal to run that program using a modified
+version of the Library.
+
+The precise terms and conditions for copying, distribution and modification
+follow. Pay close attention to the difference between a "work based on the
+library" and a "work that uses the library". The former contains code derived
+from the library, whereas the latter must be combined with the library in
+order to run.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License Agreement applies to any software library or other program
+which contains a notice placed by the copyright holder or other authorized
+party saying it may be distributed under the terms of this Lesser General
+Public License (also called "this License"). Each licensee is addressed as
+"you".
+
+A "library" means a collection of software functions and/or data prepared
+so as to be conveniently linked with application programs (which use some
+of those functions and data) to form executables.
+
+The "Library", below, refers to any such software library or work which has
+been distributed under these terms. A "work based on the Library" means either
+the Library or any derivative work under copyright law: that is to say, a
+work containing the Library or a portion of it, either verbatim or with modifications
+and/or translated straightforwardly into another language. (Hereinafter, translation
+is included without limitation in the term "modification".)
+
+"Source code" for a work means the preferred form of the work for making modifications
+to it. For a library, complete source code means all the source code for all
+modules it contains, plus any associated interface definition files, plus
+the scripts used to control compilation and installation of the library.
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running a program
+using the Library is not restricted, and output from such a program is covered
+only if its contents constitute a work based on the Library (independent of
+the use of the Library in a tool for writing it). Whether that is true depends
+on what the Library does and what the program that uses the Library does.
+
+1. You may copy and distribute verbatim copies of the Library's complete source
+code as you receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice and disclaimer
+of warranty; keep intact all the notices that refer to this License and to
+the absence of any warranty; and distribute a copy of this License along with
+the Library.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Library or any portion of it,
+thus forming a work based on the Library, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+      a) The modified work must itself be a software library.
+
+b) You must cause the files modified to carry prominent notices stating that
+you changed the files and the date of any change.
+
+c) You must cause the whole of the work to be licensed at no charge to all
+third parties under the terms of this License.
+
+d) If a facility in the modified Library refers to a function or a table of
+data to be supplied by an application program that uses the facility, other
+than as an argument passed when the facility is invoked, then you must make
+a good faith effort to ensure that, in the event an application does not supply
+such function or table, the facility still operates, and performs whatever
+part of its purpose remains meaningful.
+
+(For example, a function in a library to compute square roots has a purpose
+that is entirely well-defined independent of the application. Therefore, Subsection
+2d requires that any application-supplied function or table used by this function
+must be optional: if the application does not supply it, the square root function
+must still compute square roots.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Library, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Library, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Library.
+
+In addition, mere aggregation of another work not based on the Library with
+the Library (or with a work based on the Library) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may opt to apply the terms of the ordinary GNU General Public License
+instead of this License to a given copy of the Library. To do this, you must
+alter all the notices that refer to this License, so that they refer to the
+ordinary GNU General Public License, version 2, instead of to this License.
+(If a newer version than version 2 of the ordinary GNU General Public License
+has appeared, then you can specify that version instead if you wish.) Do not
+make any other change in these notices.
+
+Once this change is made in a given copy, it is irreversible for that copy,
+so the ordinary GNU General Public License applies to all subsequent copies
+and derivative works made from that copy.
+
+This option is useful when you wish to copy part of the code of the Library
+into a program that is not a library.
+
+4. You may copy and distribute the Library (or a portion or derivative of
+it, under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you accompany it with the complete corresponding
+machine-readable source code, which must be distributed under the terms of
+Sections 1 and 2 above on a medium customarily used for software interchange.
+
+If distribution of object code is made by offering access to copy from a designated
+place, then offering equivalent access to copy the source code from the same
+place satisfies the requirement to distribute the source code, even though
+third parties are not compelled to copy the source along with the object code.
+
+5. A program that contains no derivative of any portion of the Library, but
+is designed to work with the Library by being compiled or linked with it,
+is called a "work that uses the Library". Such a work, in isolation, is not
+a derivative work of the Library, and therefore falls outside the scope of
+this License.
+
+However, linking a "work that uses the Library" with the Library creates an
+executable that is a derivative of the Library (because it contains portions
+of the Library), rather than a "work that uses the library". The executable
+is therefore covered by this License. Section 6 states terms for distribution
+of such executables.
+
+When a "work that uses the Library" uses material from a header file that
+is part of the Library, the object code for the work may be a derivative work
+of the Library even though the source code is not. Whether this is true is
+especially significant if the work can be linked without the Library, or if
+the work is itself a library. The threshold for this to be true is not precisely
+defined by law.
+
+If such an object file uses only numerical parameters, data structure layouts
+and accessors, and small macros and small inline functions (ten lines or less
+in length), then the use of the object file is unrestricted, regardless of
+whether it is legally a derivative work. (Executables containing this object
+code plus portions of the Library will still fall under Section 6.)
+
+Otherwise, if the work is a derivative of the Library, you may distribute
+the object code for the work under the terms of Section 6. Any executables
+containing that work also fall under Section 6, whether or not they are linked
+directly with the Library itself.
+
+6. As an exception to the Sections above, you may also combine or link a "work
+that uses the Library" with the Library to produce a work containing portions
+of the Library, and distribute that work under terms of your choice, provided
+that the terms permit modification of the work for the customer's own use
+and reverse engineering for debugging such modifications.
+
+You must give prominent notice with each copy of the work that the Library
+is used in it and that the Library and its use are covered by this License.
+You must supply a copy of this License. If the work during execution displays
+copyright notices, you must include the copyright notice for the Library among
+them, as well as a reference directing the user to the copy of this License.
+Also, you must do one of these things:
+
+a) Accompany the work with the complete corresponding machine-readable source
+code for the Library including whatever changes were used in the work (which
+must be distributed under Sections 1 and 2 above); and, if the work is an
+executable linked with the Library, with the complete machine-readable "work
+that uses the Library", as object code and/or source code, so that the user
+can modify the Library and then relink to produce a modified executable containing
+the modified Library. (It is understood that the user who changes the contents
+of definitions files in the Library will not necessarily be able to recompile
+the application to use the modified definitions.)
+
+b) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (1) uses at run time a copy of the library
+already present on the user's computer system, rather than copying library
+functions into the executable, and (2) will operate properly with a modified
+version of the library, if the user installs one, as long as the modified
+version is interface-compatible with the version that the work was made with.
+
+c) Accompany the work with a written offer, valid for at least three years,
+to give the same user the materials specified in Subsection 6a, above, for
+a charge no more than the cost of performing this distribution.
+
+d) If distribution of the work is made by offering access to copy from a designated
+place, offer equivalent access to copy the above specified materials from
+the same place.
+
+e) Verify that the user has already received a copy of these materials or
+that you have already sent this user a copy.
+
+For an executable, the required form of the "work that uses the Library" must
+include any data and utility programs needed for reproducing the executable
+from it. However, as a special exception, the materials to be distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+It may happen that this requirement contradicts the license restrictions of
+other proprietary libraries that do not normally accompany the operating system.
+Such a contradiction means you cannot use both them and the Library together
+in an executable that you distribute.
+
+7. You may place library facilities that are a work based on the Library side-by-side
+in a single library together with other library facilities not covered by
+this License, and distribute such a combined library, provided that the separate
+distribution of the work based on the Library and of the other library facilities
+is otherwise permitted, and provided that you do these two things:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities. This must be distributed
+under the terms of the Sections above.
+
+b) Give prominent notice with the combined library of the fact that part of
+it is a work based on the Library, and explaining where to find the accompanying
+uncombined form of the same work.
+
+8. You may not copy, modify, sublicense, link with, or distribute the Library
+except as expressly provided under this License. Any attempt otherwise to
+copy, modify, sublicense, link with, or distribute the Library is void, and
+will automatically terminate your rights under this License. However, parties
+who have received copies, or rights, from you under this License will not
+have their licenses terminated so long as such parties remain in full compliance.
+
+9. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Library or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Library
+(or any work based on the Library), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+10. Each time you redistribute the Library (or any work based on the Library),
+the recipient automatically receives a license from the original licensor
+to copy, distribute, link with or modify the Library subject to these terms
+and conditions. You may not impose any further restrictions on the recipients'
+exercise of the rights granted herein. You are not responsible for enforcing
+compliance by third parties with this License.
+
+11. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Library at all. For example, if a
+patent license would not permit royalty-free redistribution of the Library
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+12. If the distribution and/or use of the Library is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Library under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+13. The Free Software Foundation may publish revised and/or new versions of
+the Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Library does not specify a license version number, you may choose any version
+ever published by the Free Software Foundation.
+
+14. If you wish to incorporate parts of the Library into other free programs
+whose distribution conditions are incompatible with these, write to the author
+to ask for permission. For software which is copyrighted by the Free Software
+Foundation, write to the Free Software Foundation; we sometimes make exceptions
+for this. Our decision will be guided by the two goals of preserving the free
+status of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+   NO WARRANTY
+
+15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE LIBRARY
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Libraries
+
+If you develop a new library, and you want it to be of the greatest possible
+use to the public, we recommend making it free software that everyone can
+redistribute and change. You can do so by permitting redistribution under
+these terms (or, alternatively, under the terms of the ordinary General Public
+License).
+
+To apply these terms, attach the following notices to the library. It is safest
+to attach them to the start of each source file to most effectively convey
+the exclusion of warranty; and each file should have at least the "copyright"
+line and a pointer to where the full notice is found.
+
+< one line to give the library's name and an idea of what it does. >
+
+Copyright (C) < year > < name of author >
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 2.1 of the License, or (at your option)
+any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Also add information
+on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the library, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in
+
+the library `Frob' (a library for tweaking knobs) written
+
+by James Random Hacker.
+
+< signature of Ty Coon > , 1 April 1990
+
+Ty Coon, President of Vice
+
+That's all there is to it!
@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+This version of the GNU Lesser General Public License incorporates the terms
+and conditions of version 3 of the GNU General Public License, supplemented
+by the additional permissions listed below.
+
+   0. Additional Definitions.
+
+      
+
+As used herein, "this License" refers to version 3 of the GNU Lesser General
+Public License, and the "GNU GPL" refers to version 3 of the GNU General Public
+License.
+
+      
+
+"The Library" refers to a covered work governed by this License, other than
+an Application or a Combined Work as defined below.
+
+      
+
+An "Application" is any work that makes use of an interface provided by the
+Library, but which is not otherwise based on the Library. Defining a subclass
+of a class defined by the Library is deemed a mode of using an interface provided
+by the Library.
+
+      
+
+A "Combined Work" is a work produced by combining or linking an Application
+with the Library. The particular version of the Library with which the Combined
+Work was made is also called the "Linked Version".
+
+      
+
+The "Minimal Corresponding Source" for a Combined Work means the Corresponding
+Source for the Combined Work, excluding any source code for portions of the
+Combined Work that, considered in isolation, are based on the Application,
+and not on the Linked Version.
+
+      
+
+The "Corresponding Application Code" for a Combined Work means the object
+code and/or source code for the Application, including any data and utility
+programs needed for reproducing the Combined Work from the Application, but
+excluding the System Libraries of the Combined Work.
+
+   1. Exception to Section 3 of the GNU GPL.
+
+You may convey a covered work under sections 3 and 4 of this License without
+being bound by section 3 of the GNU GPL.
+
+   2. Conveying Modified Versions.
+
+If you modify a copy of the Library, and, in your modifications, a facility
+refers to a function or data to be supplied by an Application that uses the
+facility (other than as an argument passed when the facility is invoked),
+then you may convey a copy of the modified version:
+
+a) under this License, provided that you make a good faith effort to ensure
+that, in the event an Application does not supply the function or data, the
+facility still operates, and performs whatever part of its purpose remains
+meaningful, or
+
+b) under the GNU GPL, with none of the additional permissions of this License
+applicable to that copy.
+
+   3. Object Code Incorporating Material from Library Header Files.
+
+The object code form of an Application may incorporate material from a header
+file that is part of the Library. You may convey such object code under terms
+of your choice, provided that, if the incorporated material is not limited
+to numerical parameters, data structure layouts and accessors, or small macros,
+inline functions and templates (ten or fewer lines in length), you do both
+of the following:
+
+a) Give prominent notice with each copy of the object code that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the object code with a copy of the GNU GPL and this license document.
+
+   4. Combined Works.
+
+You may convey a Combined Work under terms of your choice that, taken together,
+effectively do not restrict modification of the portions of the Library contained
+in the Combined Work and reverse engineering for debugging such modifications,
+if you also do each of the following:
+
+a) Give prominent notice with each copy of the Combined Work that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the Combined Work with a copy of the GNU GPL and this license
+document.
+
+c) For a Combined Work that displays copyright notices during execution, include
+the copyright notice for the Library among these notices, as well as a reference
+directing the user to the copies of the GNU GPL and this license document.
+
+      d) Do one of the following:
+
+0) Convey the Minimal Corresponding Source under the terms of this License,
+and the Corresponding Application Code in a form suitable for, and under terms
+that permit, the user to recombine or relink the Application with a modified
+version of the Linked Version to produce a modified Combined Work, in the
+manner specified by section 6 of the GNU GPL for conveying Corresponding Source.
+
+1) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (a) uses at run time a copy of the Library
+already present on the user's computer system, and (b) will operate properly
+with a modified version of the Library that is interface-compatible with the
+Linked Version.
+
+e) Provide Installation Information, but only if you would otherwise be required
+to provide such information under section 6 of the GNU GPL, and only to the
+extent that such information is necessary to install and execute a modified
+version of the Combined Work produced by recombining or relinking the Application
+with a modified version of the Linked Version. (If you use option 4d0, the
+Installation Information must accompany the Minimal Corresponding Source and
+Corresponding Application Code. If you use option 4d1, you must provide the
+Installation Information in the manner specified by section 6 of the GNU GPL
+for conveying Corresponding Source.)
+
+   5. Combined Libraries.
+
+You may place library facilities that are a work based on the Library side
+by side in a single library together with other library facilities that are
+not Applications and are not covered by this License, and convey such a combined
+library under terms of your choice, if you do both of the following:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities, conveyed under the
+terms of this License.
+
+b) Give prominent notice with the combined library that part of it is a work
+based on the Library, and explaining where to find the accompanying uncombined
+form of the same work.
+
+   6. Revised Versions of the GNU Lesser General Public License.
+
+The Free Software Foundation may publish revised and/or new versions of the
+GNU Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library as you
+received it specifies that a certain numbered version of the GNU Lesser General
+Public License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that published version or of
+any later version published by the Free Software Foundation. If the Library
+as you received it does not specify a version number of the GNU Lesser General
+Public License, you may choose any version of the GNU Lesser General Public
+License ever published by the Free Software Foundation.
+
+If the Library as you received it specifies that a proxy can decide whether
+future versions of the GNU Lesser General Public License shall apply, that
+proxy's public statement of acceptance of any version is permanent authorization
+for you to choose that version for the Library.
@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of
+the license or (at your option) at any later version that is
+accepted by the membership of KDE e.V. (or its successor
+approved by the membership of KDE e.V.), which shall act as a
+proxy as defined in Section 14 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3 of the license or (at your option) any later version
+that is accepted by the membership of KDE e.V. (or its successor
+approved by the membership of KDE e.V.), which shall act as a
+proxy as defined in Section 6 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
@@ -0,0 +1,467 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 2.1, February 1999
+
+Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts as the
+successor of the GNU Library Public License, version 2, hence the version
+number 2.1.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to share
+and change it. By contrast, the GNU General Public Licenses are intended to
+guarantee your freedom to share and change free software--to make sure the
+software is free for all its users.
+
+This license, the Lesser General Public License, applies to some specially
+designated software packages--typically libraries--of the Free Software Foundation
+and other authors who decide to use it. You can use it too, but we suggest
+you first think carefully about whether this license or the ordinary General
+Public License is the better strategy to use in any particular case, based
+on the explanations below.
+
+When we speak of free software, we are referring to freedom of use, not price.
+Our General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish); that you receive source code or can get it if you want it; that you
+can change the software and use pieces of it in new free programs; and that
+you are informed that you can do these things.
+
+To protect your rights, we need to make restrictions that forbid distributors
+to deny you these rights or to ask you to surrender these rights. These restrictions
+translate to certain responsibilities for you if you distribute copies of
+the library or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You must
+make sure that they, too, receive or can get the source code. If you link
+other code with the library, you must provide complete object files to the
+recipients, so that they can relink them with the library after making changes
+to the library and recompiling it. And you must show them these terms so they
+know their rights.
+
+We protect your rights with a two-step method: (1) we copyright the library,
+and (2) we offer you this license, which gives you legal permission to copy,
+distribute and/or modify the library.
+
+To protect each distributor, we want to make it very clear that there is no
+warranty for the free library. Also, if the library is modified by someone
+else and passed on, the recipients should know that what they have is not
+the original version, so that the original author's reputation will not be
+affected by problems that might be introduced by others.
+
+Finally, software patents pose a constant threat to the existence of any free
+program. We wish to make sure that a company cannot effectively restrict the
+users of a free program by obtaining a restrictive license from a patent holder.
+Therefore, we insist that any patent license obtained for a version of the
+library must be consistent with the full freedom of use specified in this
+license.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License. This license, the GNU Lesser General Public License,
+applies to certain designated libraries, and is quite different from the ordinary
+General Public License. We use this license for certain libraries in order
+to permit linking those libraries into non-free programs.
+
+When a program is linked with a library, whether statically or using a shared
+library, the combination of the two is legally speaking a combined work, a
+derivative of the original library. The ordinary General Public License therefore
+permits such linking only if the entire combination fits its criteria of freedom.
+The Lesser General Public License permits more lax criteria for linking other
+code with the library.
+
+We call this license the "Lesser" General Public License because it does Less
+to protect the user's freedom than the ordinary General Public License. It
+also provides other free software developers Less of an advantage over competing
+non-free programs. These disadvantages are the reason we use the ordinary
+General Public License for many libraries. However, the Lesser license provides
+advantages in certain special circumstances.
+
+For example, on rare occasions, there may be a special need to encourage the
+widest possible use of a certain library, so that it becomes a de-facto standard.
+To achieve this, non-free programs must be allowed to use the library. A more
+frequent case is that a free library does the same job as widely used non-free
+libraries. In this case, there is little to gain by limiting the free library
+to free software only, so we use the Lesser General Public License.
+
+In other cases, permission to use a particular library in non-free programs
+enables a greater number of people to use a large body of free software. For
+example, permission to use the GNU C Library in non-free programs enables
+many more people to use the whole GNU operating system, as well as its variant,
+the GNU/Linux operating system.
+
+Although the Lesser General Public License is Less protective of the users'
+freedom, it does ensure that the user of a program that is linked with the
+Library has the freedom and the wherewithal to run that program using a modified
+version of the Library.
+
+The precise terms and conditions for copying, distribution and modification
+follow. Pay close attention to the difference between a "work based on the
+library" and a "work that uses the library". The former contains code derived
+from the library, whereas the latter must be combined with the library in
+order to run.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License Agreement applies to any software library or other program
+which contains a notice placed by the copyright holder or other authorized
+party saying it may be distributed under the terms of this Lesser General
+Public License (also called "this License"). Each licensee is addressed as
+"you".
+
+A "library" means a collection of software functions and/or data prepared
+so as to be conveniently linked with application programs (which use some
+of those functions and data) to form executables.
+
+The "Library", below, refers to any such software library or work which has
+been distributed under these terms. A "work based on the Library" means either
+the Library or any derivative work under copyright law: that is to say, a
+work containing the Library or a portion of it, either verbatim or with modifications
+and/or translated straightforwardly into another language. (Hereinafter, translation
+is included without limitation in the term "modification".)
+
+"Source code" for a work means the preferred form of the work for making modifications
+to it. For a library, complete source code means all the source code for all
+modules it contains, plus any associated interface definition files, plus
+the scripts used to control compilation and installation of the library.
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running a program
+using the Library is not restricted, and output from such a program is covered
+only if its contents constitute a work based on the Library (independent of
+the use of the Library in a tool for writing it). Whether that is true depends
+on what the Library does and what the program that uses the Library does.
+
+1. You may copy and distribute verbatim copies of the Library's complete source
+code as you receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice and disclaimer
+of warranty; keep intact all the notices that refer to this License and to
+the absence of any warranty; and distribute a copy of this License along with
+the Library.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Library or any portion of it,
+thus forming a work based on the Library, and copy and distribute such modifications
+or work under the terms of Section 1 above, provided that you also meet all
+of these conditions:
+
+      a) The modified work must itself be a software library.
+
+b) You must cause the files modified to carry prominent notices stating that
+you changed the files and the date of any change.
+
+c) You must cause the whole of the work to be licensed at no charge to all
+third parties under the terms of this License.
+
+d) If a facility in the modified Library refers to a function or a table of
+data to be supplied by an application program that uses the facility, other
+than as an argument passed when the facility is invoked, then you must make
+a good faith effort to ensure that, in the event an application does not supply
+such function or table, the facility still operates, and performs whatever
+part of its purpose remains meaningful.
+
+(For example, a function in a library to compute square roots has a purpose
+that is entirely well-defined independent of the application. Therefore, Subsection
+2d requires that any application-supplied function or table used by this function
+must be optional: if the application does not supply it, the square root function
+must still compute square roots.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Library, and can be reasonably
+considered independent and separate works in themselves, then this License,
+and its terms, do not apply to those sections when you distribute them as
+separate works. But when you distribute the same sections as part of a whole
+which is a work based on the Library, the distribution of the whole must be
+on the terms of this License, whose permissions for other licensees extend
+to the entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works based
+on the Library.
+
+In addition, mere aggregation of another work not based on the Library with
+the Library (or with a work based on the Library) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may opt to apply the terms of the ordinary GNU General Public License
+instead of this License to a given copy of the Library. To do this, you must
+alter all the notices that refer to this License, so that they refer to the
+ordinary GNU General Public License, version 2, instead of to this License.
+(If a newer version than version 2 of the ordinary GNU General Public License
+has appeared, then you can specify that version instead if you wish.) Do not
+make any other change in these notices.
+
+Once this change is made in a given copy, it is irreversible for that copy,
+so the ordinary GNU General Public License applies to all subsequent copies
+and derivative works made from that copy.
+
+This option is useful when you wish to copy part of the code of the Library
+into a program that is not a library.
+
+4. You may copy and distribute the Library (or a portion or derivative of
+it, under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you accompany it with the complete corresponding
+machine-readable source code, which must be distributed under the terms of
+Sections 1 and 2 above on a medium customarily used for software interchange.
+
+If distribution of object code is made by offering access to copy from a designated
+place, then offering equivalent access to copy the source code from the same
+place satisfies the requirement to distribute the source code, even though
+third parties are not compelled to copy the source along with the object code.
+
+5. A program that contains no derivative of any portion of the Library, but
+is designed to work with the Library by being compiled or linked with it,
+is called a "work that uses the Library". Such a work, in isolation, is not
+a derivative work of the Library, and therefore falls outside the scope of
+this License.
+
+However, linking a "work that uses the Library" with the Library creates an
+executable that is a derivative of the Library (because it contains portions
+of the Library), rather than a "work that uses the library". The executable
+is therefore covered by this License. Section 6 states terms for distribution
+of such executables.
+
+When a "work that uses the Library" uses material from a header file that
+is part of the Library, the object code for the work may be a derivative work
+of the Library even though the source code is not. Whether this is true is
+especially significant if the work can be linked without the Library, or if
+the work is itself a library. The threshold for this to be true is not precisely
+defined by law.
+
+If such an object file uses only numerical parameters, data structure layouts
+and accessors, and small macros and small inline functions (ten lines or less
+in length), then the use of the object file is unrestricted, regardless of
+whether it is legally a derivative work. (Executables containing this object
+code plus portions of the Library will still fall under Section 6.)
+
+Otherwise, if the work is a derivative of the Library, you may distribute
+the object code for the work under the terms of Section 6. Any executables
+containing that work also fall under Section 6, whether or not they are linked
+directly with the Library itself.
+
+6. As an exception to the Sections above, you may also combine or link a "work
+that uses the Library" with the Library to produce a work containing portions
+of the Library, and distribute that work under terms of your choice, provided
+that the terms permit modification of the work for the customer's own use
+and reverse engineering for debugging such modifications.
+
+You must give prominent notice with each copy of the work that the Library
+is used in it and that the Library and its use are covered by this License.
+You must supply a copy of this License. If the work during execution displays
+copyright notices, you must include the copyright notice for the Library among
+them, as well as a reference directing the user to the copy of this License.
+Also, you must do one of these things:
+
+a) Accompany the work with the complete corresponding machine-readable source
+code for the Library including whatever changes were used in the work (which
+must be distributed under Sections 1 and 2 above); and, if the work is an
+executable linked with the Library, with the complete machine-readable "work
+that uses the Library", as object code and/or source code, so that the user
+can modify the Library and then relink to produce a modified executable containing
+the modified Library. (It is understood that the user who changes the contents
+of definitions files in the Library will not necessarily be able to recompile
+the application to use the modified definitions.)
+
+b) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (1) uses at run time a copy of the library
+already present on the user's computer system, rather than copying library
+functions into the executable, and (2) will operate properly with a modified
+version of the library, if the user installs one, as long as the modified
+version is interface-compatible with the version that the work was made with.
+
+c) Accompany the work with a written offer, valid for at least three years,
+to give the same user the materials specified in Subsection 6a, above, for
+a charge no more than the cost of performing this distribution.
+
+d) If distribution of the work is made by offering access to copy from a designated
+place, offer equivalent access to copy the above specified materials from
+the same place.
+
+e) Verify that the user has already received a copy of these materials or
+that you have already sent this user a copy.
+
+For an executable, the required form of the "work that uses the Library" must
+include any data and utility programs needed for reproducing the executable
+from it. However, as a special exception, the materials to be distributed
+need not include anything that is normally distributed (in either source or
+binary form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component itself
+accompanies the executable.
+
+It may happen that this requirement contradicts the license restrictions of
+other proprietary libraries that do not normally accompany the operating system.
+Such a contradiction means you cannot use both them and the Library together
+in an executable that you distribute.
+
+7. You may place library facilities that are a work based on the Library side-by-side
+in a single library together with other library facilities not covered by
+this License, and distribute such a combined library, provided that the separate
+distribution of the work based on the Library and of the other library facilities
+is otherwise permitted, and provided that you do these two things:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities. This must be distributed
+under the terms of the Sections above.
+
+b) Give prominent notice with the combined library of the fact that part of
+it is a work based on the Library, and explaining where to find the accompanying
+uncombined form of the same work.
+
+8. You may not copy, modify, sublicense, link with, or distribute the Library
+except as expressly provided under this License. Any attempt otherwise to
+copy, modify, sublicense, link with, or distribute the Library is void, and
+will automatically terminate your rights under this License. However, parties
+who have received copies, or rights, from you under this License will not
+have their licenses terminated so long as such parties remain in full compliance.
+
+9. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Library or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the Library
+(or any work based on the Library), you indicate your acceptance of this License
+to do so, and all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+10. Each time you redistribute the Library (or any work based on the Library),
+the recipient automatically receives a license from the original licensor
+to copy, distribute, link with or modify the Library subject to these terms
+and conditions. You may not impose any further restrictions on the recipients'
+exercise of the rights granted herein. You are not responsible for enforcing
+compliance by third parties with this License.
+
+11. If, as a consequence of a court judgment or allegation of patent infringement
+or for any other reason (not limited to patent issues), conditions are imposed
+on you (whether by court order, agreement or otherwise) that contradict the
+conditions of this License, they do not excuse you from the conditions of
+this License. If you cannot distribute so as to satisfy simultaneously your
+obligations under this License and any other pertinent obligations, then as
+a consequence you may not distribute the Library at all. For example, if a
+patent license would not permit royalty-free redistribution of the Library
+by all those who receive copies directly or indirectly through you, then the
+only way you could satisfy both it and this License would be to refrain entirely
+from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system which is implemented by public license practices.
+Many people have made generous contributions to the wide range of software
+distributed through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing to
+distribute software through any other system and a licensee cannot impose
+that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+12. If the distribution and/or use of the Library is restricted in certain
+countries either by patents or by copyrighted interfaces, the original copyright
+holder who places the Library under this License may add an explicit geographical
+distribution limitation excluding those countries, so that distribution is
+permitted only in or among countries not thus excluded. In such case, this
+License incorporates the limitation as if written in the body of this License.
+
+13. The Free Software Foundation may publish revised and/or new versions of
+the Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library specifies
+a version number of this License which applies to it and "any later version",
+you have the option of following the terms and conditions either of that version
+or of any later version published by the Free Software Foundation. If the
+Library does not specify a license version number, you may choose any version
+ever published by the Free Software Foundation.
+
+14. If you wish to incorporate parts of the Library into other free programs
+whose distribution conditions are incompatible with these, write to the author
+to ask for permission. For software which is copyrighted by the Free Software
+Foundation, write to the Free Software Foundation; we sometimes make exceptions
+for this. Our decision will be guided by the two goals of preserving the free
+status of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+   NO WARRANTY
+
+15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
+STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE LIBRARY
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
+THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
+OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
+OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
+OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH
+HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Libraries
+
+If you develop a new library, and you want it to be of the greatest possible
+use to the public, we recommend making it free software that everyone can
+redistribute and change. You can do so by permitting redistribution under
+these terms (or, alternatively, under the terms of the ordinary General Public
+License).
+
+To apply these terms, attach the following notices to the library. It is safest
+to attach them to the start of each source file to most effectively convey
+the exclusion of warranty; and each file should have at least the "copyright"
+line and a pointer to where the full notice is found.
+
+< one line to give the library's name and an idea of what it does. >
+
+Copyright (C) < year > < name of author >
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 2.1 of the License, or (at your option)
+any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Also add information
+on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your school,
+if any, to sign a "copyright disclaimer" for the library, if necessary. Here
+is a sample; alter the names:
+
+Yoyodyne, Inc., hereby disclaims all copyright interest in
+
+the library `Frob' (a library for tweaking knobs) written
+
+by James Random Hacker.
+
+< signature of Ty Coon > , 1 April 1990
+
+Ty Coon, President of Vice
+
+That's all there is to it!
@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+This version of the GNU Lesser General Public License incorporates the terms
+and conditions of version 3 of the GNU General Public License, supplemented
+by the additional permissions listed below.
+
+   0. Additional Definitions.
+
+      
+
+As used herein, "this License" refers to version 3 of the GNU Lesser General
+Public License, and the "GNU GPL" refers to version 3 of the GNU General Public
+License.
+
+      
+
+"The Library" refers to a covered work governed by this License, other than
+an Application or a Combined Work as defined below.
+
+      
+
+An "Application" is any work that makes use of an interface provided by the
+Library, but which is not otherwise based on the Library. Defining a subclass
+of a class defined by the Library is deemed a mode of using an interface provided
+by the Library.
+
+      
+
+A "Combined Work" is a work produced by combining or linking an Application
+with the Library. The particular version of the Library with which the Combined
+Work was made is also called the "Linked Version".
+
+      
+
+The "Minimal Corresponding Source" for a Combined Work means the Corresponding
+Source for the Combined Work, excluding any source code for portions of the
+Combined Work that, considered in isolation, are based on the Application,
+and not on the Linked Version.
+
+      
+
+The "Corresponding Application Code" for a Combined Work means the object
+code and/or source code for the Application, including any data and utility
+programs needed for reproducing the Combined Work from the Application, but
+excluding the System Libraries of the Combined Work.
+
+   1. Exception to Section 3 of the GNU GPL.
+
+You may convey a covered work under sections 3 and 4 of this License without
+being bound by section 3 of the GNU GPL.
+
+   2. Conveying Modified Versions.
+
+If you modify a copy of the Library, and, in your modifications, a facility
+refers to a function or data to be supplied by an Application that uses the
+facility (other than as an argument passed when the facility is invoked),
+then you may convey a copy of the modified version:
+
+a) under this License, provided that you make a good faith effort to ensure
+that, in the event an Application does not supply the function or data, the
+facility still operates, and performs whatever part of its purpose remains
+meaningful, or
+
+b) under the GNU GPL, with none of the additional permissions of this License
+applicable to that copy.
+
+   3. Object Code Incorporating Material from Library Header Files.
+
+The object code form of an Application may incorporate material from a header
+file that is part of the Library. You may convey such object code under terms
+of your choice, provided that, if the incorporated material is not limited
+to numerical parameters, data structure layouts and accessors, or small macros,
+inline functions and templates (ten or fewer lines in length), you do both
+of the following:
+
+a) Give prominent notice with each copy of the object code that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the object code with a copy of the GNU GPL and this license document.
+
+   4. Combined Works.
+
+You may convey a Combined Work under terms of your choice that, taken together,
+effectively do not restrict modification of the portions of the Library contained
+in the Combined Work and reverse engineering for debugging such modifications,
+if you also do each of the following:
+
+a) Give prominent notice with each copy of the Combined Work that the Library
+is used in it and that the Library and its use are covered by this License.
+
+b) Accompany the Combined Work with a copy of the GNU GPL and this license
+document.
+
+c) For a Combined Work that displays copyright notices during execution, include
+the copyright notice for the Library among these notices, as well as a reference
+directing the user to the copies of the GNU GPL and this license document.
+
+      d) Do one of the following:
+
+0) Convey the Minimal Corresponding Source under the terms of this License,
+and the Corresponding Application Code in a form suitable for, and under terms
+that permit, the user to recombine or relink the Application with a modified
+version of the Linked Version to produce a modified Combined Work, in the
+manner specified by section 6 of the GNU GPL for conveying Corresponding Source.
+
+1) Use a suitable shared library mechanism for linking with the Library. A
+suitable mechanism is one that (a) uses at run time a copy of the Library
+already present on the user's computer system, and (b) will operate properly
+with a modified version of the Library that is interface-compatible with the
+Linked Version.
+
+e) Provide Installation Information, but only if you would otherwise be required
+to provide such information under section 6 of the GNU GPL, and only to the
+extent that such information is necessary to install and execute a modified
+version of the Combined Work produced by recombining or relinking the Application
+with a modified version of the Linked Version. (If you use option 4d0, the
+Installation Information must accompany the Minimal Corresponding Source and
+Corresponding Application Code. If you use option 4d1, you must provide the
+Installation Information in the manner specified by section 6 of the GNU GPL
+for conveying Corresponding Source.)
+
+   5. Combined Libraries.
+
+You may place library facilities that are a work based on the Library side
+by side in a single library together with other library facilities that are
+not Applications and are not covered by this License, and convey such a combined
+library under terms of your choice, if you do both of the following:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities, conveyed under the
+terms of this License.
+
+b) Give prominent notice with the combined library that part of it is a work
+based on the Library, and explaining where to find the accompanying uncombined
+form of the same work.
+
+   6. Revised Versions of the GNU Lesser General Public License.
+
+The Free Software Foundation may publish revised and/or new versions of the
+GNU Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library as you
+received it specifies that a certain numbered version of the GNU Lesser General
+Public License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that published version or of
+any later version published by the Free Software Foundation. If the Library
+as you received it does not specify a version number of the GNU Lesser General
+Public License, you may choose any version of the GNU Lesser General Public
+License ever published by the Free Software Foundation.
+
+If the Library as you received it specifies that a proxy can decide whether
+future versions of the GNU Lesser General Public License shall apply, that
+proxy's public statement of acceptance of any version is permanent authorization
+for you to choose that version for the Library.
@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3 of the license or (at your option) any later version
+that is accepted by the membership of KDE e.V. (or its successor
+approved by the membership of KDE e.V.), which shall act as a
+proxy as defined in Section 6 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
@@ -0,0 +1,47 @@
+# KDE Connect for the Steam Frame
+
+Frame Control's keyboard and trackpad work through KDE Connect running on the
+Frame. The Frame doesn't come with it, so Frame Control ships it: the six
+packages below, unchanged, exactly as Valve builds them for the Frame's
+SteamOS (aarch64, packaged by "GitLab CI Package Builder
+<ci-package-builder-1@steamos.cloud>"). On first use, Frame Control copies them
+to the Frame over SSH and unpacks them into
+`~/.local/share/frame-control/kdeconnect`.
+
+They are separate programs and libraries under their own licences, listed
+below; their licence texts are in `LICENSES/<package>/`. Frame Control itself
+is MIT-licensed. It doesn't link to or include any of this code: it starts
+`kdeconnectd` and talks to it over KDE Connect's network protocol, as a phone
+would.
+
+| Package | Version (Valve's build) | Licence | Complete source (Valve's source package) | Upstream |
+|---|---|---|---|---|
+| kdeconnect 24.02.2-1 | 24.02.2-1 | GPL-2.0-only or GPL-3.0-only or any later version accepted by KDE e.V. (LicenseRef-KDE-Accepted-GPL); some files LGPL-2.1/3.0, MIT, BSD-3-Clause, Apache-2.0, CC0-1.0 | [kdeconnect-24.02.2-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kdeconnect-24.02.2-1.src.tar.gz) | [KDE](https://download.kde.org/stable/release-service/24.02.2/src/kdeconnect-kde-24.02.2.tar.xz) |
+| kcontacts 6.1.0-1 | 1:6.1.0-1 | LGPL-2.0-or-later; some files MIT, BSD-3-Clause, CC0-1.0, Unicode-DFS-2016 | [kcontacts-6.1.0-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kcontacts-6.1.0-1.src.tar.gz) | [KDE](https://download.kde.org/stable/frameworks/6.1/kcontacts-6.1.0.tar.xz) |
+| kpeople 6.1.0-1 | 6.1.0-1 | LGPL-2.1-or-later; some files BSD-3-Clause, CC0-1.0 | [kpeople-6.1.0-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kpeople-6.1.0-1.src.tar.gz) | [KDE](https://download.kde.org/stable/frameworks/6.1/kpeople-6.1.0.tar.xz) |
+| modemmanager-qt 6.1.0-1 | 6.1.0-1 | LGPL-2.1-only or LGPL-3.0-only (or later accepted by KDE e.V.); some files BSD-3-Clause, CC0-1.0 | [modemmanager-qt-6.1.0-1.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/modemmanager-qt-6.1.0-1.src.tar.gz) | [KDE](https://download.kde.org/stable/frameworks/6.1/modemmanager-qt-6.1.0.tar.xz) |
+| pulseaudio-qt 1.4.0-3 | 1.4.0-3 | LGPL-2.1-only or LGPL-3.0-only (or later accepted by KDE e.V.) | [pulseaudio-qt-1.4.0-3.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/pulseaudio-qt-1.4.0-3.src.tar.gz) | [KDE](https://download.kde.org/stable/pulseaudio-qt/pulseaudio-qt-1.4.0.tar.xz) |
+| libfakekey 0.3-2 | 0.3-2 | LGPL-2.0-or-later (Copyright © 2004 OpenedHand) | [libfakekey-0.3-2.src.tar.gz](https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/libfakekey-0.3-2.src.tar.gz) | [Yocto Project git, tag 0.3](https://git.yoctoproject.org/libfakekey/tag/?h=0.3) |
+
+## Source code
+
+Each source package is Valve's, copied unchanged: the upstream release
+tarball (with its signature where upstream signs it), the PKGBUILD Valve built
+from, and the signing keys. None of them carry patches. Frame Control
+publishes them next to the binaries, in the
+[kdeconnect-frame-24.02.2-1 release](https://github.com/saphid/frame-control/releases/tag/kdeconnect-frame-24.02.2-1),
+so the source is available from the same place as the binaries for as long as
+Frame Control distributes them. `packages.json` pins each binary and source
+package by SHA-256.
+
+If a link ever stops working, open an issue at
+https://github.com/saphid/frame-control/issues and we'll send you the source.
+
+## Replacing them
+
+These are ordinary files in your home folder on the Frame: you may replace
+them with your own builds, and Frame Control will use whatever `kdeconnectd`
+is at `~/.local/share/frame-control/kdeconnect/root/usr/lib/kdeconnectd`
+(or the Frame's own `/usr/lib/kdeconnectd`, if SteamOS ever ships one).
+Deleting `root/.frame-control-packages` there makes Frame Control copy its
+bundled build back on next use.
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""Download the KDE Connect packages Frame Control ships for the Frame into
+frame/kdeconnect/packages, checking each against its pinned SHA-256
+(packages.json). Already-downloaded files that match are kept.
+
+ios/scripts/make_frame_bundle.py runs this; app/build/fetch-deps.js does the same
+in Node. Usage: python3 frame/kdeconnect/fetch.py
+"""
+import hashlib
+import json
+import sys
+import urllib.request
+from pathlib import Path
+
+HERE = Path(__file__).resolve().parent
+PACKAGES = HERE / "packages"
+
+
+def manifest():
+    return json.loads((HERE / "packages.json").read_text())
+
+
+def sha256(data):
+    return hashlib.sha256(data).hexdigest()
+
+
+def fetch():
+    m = manifest()
+    PACKAGES.mkdir(exist_ok=True)
+    for p in m["packages"]:
+        path = PACKAGES / p["file"]
+        if path.is_file() and sha256(path.read_bytes()) == p["sha256"]:
+            continue
+        url = m["release"] + p["file"]
+        with urllib.request.urlopen(url, timeout=120) as r:
+            data = r.read()
+        if sha256(data) != p["sha256"]:
+            raise SystemExit(f"checksum mismatch for {url}: {sha256(data)}")
+        tmp = path.with_suffix(".part")
+        tmp.write_bytes(data)
+        tmp.replace(path)
+    wanted = {p["file"] for p in m["packages"]}
+    for old in PACKAGES.iterdir():
+        if old.name not in wanted:
+            old.unlink()
+    return [PACKAGES / p["file"] for p in m["packages"]]
+
+
+if __name__ == "__main__":
+    for path in fetch():
+        print(path.relative_to(HERE.parent.parent), file=sys.stderr)
@@ -0,0 +1,86 @@
+{
+  "about": "KDE Connect for the Steam Frame, as Valve builds it for the Frame's SteamOS (aarch64), and the libraries it needs that the Frame lacks. See NOTICE.md.",
+  "release": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/",
+  "packages": [
+    {
+      "name": "kdeconnect",
+      "version": "24.02.2-1",
+      "file": "kdeconnect-24.02.2-1-aarch64.pkg.tar.zst",
+      "sha256": "4cd88498f3dcd9563009f84022aeb9b60344b8afbcd1d3c5aeddc4d09727ef9d",
+      "size": 1390996,
+      "licenses": [
+        "GPL-2.0-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kdeconnect-24.02.2-1.src.tar.gz",
+      "source_sha256": "6e4b8e51f71a5492178231fa94d6cb858d7e752c51ea2b02208179f370e0733d",
+      "upstream": "https://download.kde.org/stable/release-service/24.02.2/src/kdeconnect-kde-24.02.2.tar.xz"
+    },
+    {
+      "name": "kcontacts",
+      "version": "6.1.0-1",
+      "file": "kcontacts-6.1.0-1-aarch64.pkg.tar.zst",
+      "sha256": "247c9dd8f8b781e69f818c96170756556a0b0bb75187ad88627217a5f924f90a",
+      "size": 838848,
+      "licenses": [
+        "LGPL-2.0-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kcontacts-6.1.0-1.src.tar.gz",
+      "source_sha256": "b3a1058e0eb13f6221de23835a128b166885d3b5f2a2126deafd62e556853316",
+      "upstream": "https://download.kde.org/stable/frameworks/6.1/kcontacts-6.1.0.tar.xz"
+    },
+    {
+      "name": "kpeople",
+      "version": "6.1.0-1",
+      "file": "kpeople-6.1.0-1-aarch64.pkg.tar.zst",
+      "sha256": "68d1e680f1fa6b25bc1e8c9d9b2ab3bfe53a74c2b507da0f437a82c58a542942",
+      "size": 464354,
+      "licenses": [
+        "LGPL-2.1-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/kpeople-6.1.0-1.src.tar.gz",
+      "source_sha256": "3ad93d2709dbea0b3ca4fbcfbd6052f739aff3d6053de03347593d1261bd5268",
+      "upstream": "https://download.kde.org/stable/frameworks/6.1/kpeople-6.1.0.tar.xz"
+    },
+    {
+      "name": "modemmanager-qt",
+      "version": "6.1.0-1",
+      "file": "modemmanager-qt-6.1.0-1-aarch64.pkg.tar.zst",
+      "sha256": "8e918c0c2c84ed4bb2383f3de9288a2cf25cc52a26d749b63df962a3d2cc6d73",
+      "size": 627059,
+      "licenses": [
+        "LGPL-2.1-only",
+        "LGPL-3.0-only"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/modemmanager-qt-6.1.0-1.src.tar.gz",
+      "source_sha256": "4004dfe8d537399e6a7a0cea0b0ec8a4c995ab34cc75a15fb97a12c315555b09",
+      "upstream": "https://download.kde.org/stable/frameworks/6.1/modemmanager-qt-6.1.0.tar.xz"
+    },
+    {
+      "name": "pulseaudio-qt",
+      "version": "1.4.0-3",
+      "file": "pulseaudio-qt-1.4.0-3-aarch64.pkg.tar.zst",
+      "sha256": "b57b91b3cc2b6e80e69a80a7cd93ea0dc4f22b5d54a5ac25540c854e31de92ce",
+      "size": 303766,
+      "licenses": [
+        "LGPL-2.1-only",
+        "LGPL-3.0-only"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/pulseaudio-qt-1.4.0-3.src.tar.gz",
+      "source_sha256": "032490884260eeb5a66d98215926fa7ae7d678f6bf93cafe4be19c0cfa5459da",
+      "upstream": "https://download.kde.org/stable/pulseaudio-qt/pulseaudio-qt-1.4.0.tar.xz"
+    },
+    {
+      "name": "libfakekey",
+      "version": "0.3-2",
+      "file": "libfakekey-0.3-2-aarch64.pkg.tar.zst",
+      "sha256": "a7563b1dcc3702f9ab9c7c07587fdc312119461c545ae5aee693e6a829e8206a",
+      "size": 6804,
+      "licenses": [
+        "LGPL-2.0-or-later"
+      ],
+      "source": "https://github.com/saphid/frame-control/releases/download/kdeconnect-frame-24.02.2-1/libfakekey-0.3-2.src.tar.gz",
+      "source_sha256": "0e8e989660b80ec2fe2569bde5710102841bd76f981acdb1e4b72d4d8d2b4da3",
+      "upstream": "https://git.yoctoproject.org/libfakekey/tag/?h=0.3"
+    }
+  ]
+}
@@ -0,0 +1,2 @@
+# Preserve upstream headers byte-for-byte, including their existing whitespace.
+vendor/** -whitespace
@@ -0,0 +1 @@
+/build-*/
@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.22)
+project(FrameXrCompat LANGUAGES CXX)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+add_library(compat_logic INTERFACE)
+target_include_directories(compat_logic INTERFACE . vendor)
+if(ANDROID)
+  add_library(XrApiLayer_FRAME_compat SHARED layer.cpp)
+  target_link_libraries(XrApiLayer_FRAME_compat PRIVATE compat_logic log)
+  target_compile_definitions(XrApiLayer_FRAME_compat PRIVATE XR_USE_PLATFORM_ANDROID XR_NO_PROTOTYPES)
+  target_compile_options(XrApiLayer_FRAME_compat PRIVATE -O2 -fvisibility=hidden -Wall -Wextra -Werror)
+  target_link_options(XrApiLayer_FRAME_compat PRIVATE -Wl,-z,max-page-size=16384 -Wl,--no-undefined -Wl,--exclude-libs,ALL -Wl,-s)
+else()
+  enable_testing()
+  add_executable(compat_tests tests/compat_tests.cpp)
+  target_link_libraries(compat_tests PRIVATE compat_logic)
+  target_compile_options(compat_tests PRIVATE -Wall -Wextra -Werror)
+  add_test(NAME compat_logic COMMAND compat_tests)
+  add_executable(dispatch_tests tests/dispatch_tests.cpp)
+  target_link_libraries(dispatch_tests PRIVATE compat_logic)
+  target_include_directories(dispatch_tests PRIVATE tests/shims)
+  target_compile_definitions(dispatch_tests PRIVATE XR_USE_PLATFORM_ANDROID XR_NO_PROTOTYPES)
+  target_compile_options(dispatch_tests PRIVATE -Wall -Wextra -Werror)
+  add_test(NAME layer_dispatch COMMAND dispatch_tests)
+endif()
@@ -0,0 +1,254 @@
+# Frame OpenXR compatibility API layer
+
+`XR_APILAYER_FRAME_compat` is an APK-local implicit API layer for Steam Frame's
+OpenXR 1.0 Android runtime. It translates selected 1.1 functionality; it is not
+a conformant replacement for a complete 1.1 runtime. Device facts are in
+[../../docs/vr-apks.md](../../docs/vr-apks.md). No headset was contacted during
+implementation. Loading, Valve-layer coexistence, controller usability, and
+Wolvic startup/rendering on Lepton remain **unverified on device**.
+
+## Behavior
+
+- The negotiated `createApiLayerInstance` hook handles `xrCreateInstance`.
+  API requests >= 1.1 become `XR_API_VERSION_1_0` (1.0.63 with these headers),
+  rather than carrying an arbitrary application's patch into the 1.0 request.
+  Requests below 1.1 are unchanged. The loader may reject future API versions
+  before any layer runs.
+- Enumerate downstream extensions through the **next layer's** GIPA before
+  creation. Only advertised promoted extensions are added, with duplicates
+  removed. All other application extensions remain, except the two stubs below.
+  Log added, stubbed and missing extensions with tag `FrameXrCompat`.
+- Missing `XR_KHR_android_thread_settings` is advertised and accepted;
+  `xrSetAndroidApplicationThreadKHR` logs and returns success without changing
+  thread scheduling. Missing `XR_OCULUS_android_session_state_enable` is
+  advertised and accepted, with no commands or additional session behavior.
+  If downstream supports either extension, preserve it and its real commands.
+  Stubbing these capabilities is intentionally limited to accepting the app's
+  request; it does not provide Meta services.
+- The manifest's `instance_extensions` makes both stubs visible during the
+  loader's pre-instance enumeration and validation. The layer also exposes
+  an enumeration implementation with count/capacity handling. Before a next
+  dispatch is available it can enumerate only its own extensions; normal app
+  global enumeration is performed by the loader, merging runtime and manifest
+  entries. See [loader_core.cpp L106–145](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_core.cpp#L106)
+  and [manifest parsing L549–558](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L549).
+- Unknown missing extensions are never silently removed. Khronos may reject
+  them **before** entering the layer and name them in `OpenXR-Loader` logs
+  ([loader_instance.cpp L149–176](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_instance.cpp#L149)).
+  If they reach this layer, it logs their names and preserves them for the
+  downstream failure.
+- `xrLocateSpaces` dispatches to `xrLocateSpacesKHR` per session/instance.
+  This is the only command added in 1.1. The three relevant structure types
+  (`SPACES_LOCATE_INFO`, `SPACE_LOCATIONS`, `SPACE_VELOCITIES`) and their KHR
+  versions are **numeric aliases**, and the structs are typedef aliases in
+  these headers. Explicit type conversion of local input/output copies is
+  therefore an identity conversion; the velocity chain passes through without
+  mutating its types or linkage. Output arrays remain shared and receive the
+  runtime's results, including on error; caller struct headers remain intact.
+- With palm pose enabled, rewrite both hand paths ending in
+  `/input/grip_surface/pose` to `/input/palm_ext/pose` in `xrStringToPath` and
+  in binding suggestions (including paths obtained before this layer rewrote
+  them). Unknown paths are left alone.
+- `xrGetInstanceProperties` and unrelated commands pass through. The real
+  runtime's identity is not spoofed. Dispatch tables and session ownership are
+  locked, and removed after successful destruction. Downstream calls occur
+  outside the lock.
+
+## Spec basis and interaction profiles
+
+The pinned [1.1 promotions appendix, versions.adoc L16–156](https://github.com/KhronosGroup/OpenXR-Docs/blob/release-1.1.63/specification/sources/chapters/versions.adoc#L16)
+includes a generated promotion list. Its source is the
+[1.1.63 XML registry](https://github.com/KhronosGroup/OpenXR-Docs/blob/release-1.1.63/specification/registry/xr.xml),
+selecting `extension[@promotedto='XR_VERSION_1_1']`. The full list implemented:
+
+| Promoted extension | Handling |
+| --- | --- |
+| `XR_KHR_locate_spaces` | Enable if advertised; core command alias |
+| `XR_EXT_local_floor` | Enable if advertised; reference-space enum is an alias |
+| `XR_EXT_uuid` | Enable if advertised; type alias, no commands |
+| `XR_EXT_palm_pose` | Enable if advertised; rewrite grip-surface paths |
+| `XR_VARJO_quad_views` | Enable if advertised; view-configuration enum alias, support remains optional |
+| `XR_EXT_samsung_odyssey_controller` | Enable if advertised |
+| `XR_EXT_hp_mixed_reality_controller` | Enable if advertised |
+| `XR_HTC_vive_cosmos_controller_interaction` | Enable if advertised |
+| `XR_HTC_vive_focus3_controller_interaction` | Enable if advertised |
+| `XR_ML_ml2_controller_interaction` | Enable if advertised |
+| `XR_FB_touch_controller_pro` | Enable if advertised; old profile still usable |
+| `XR_META_touch_controller_plus` | Enable if advertised; old profile still usable |
+| `XR_BD_controller_interaction` | Enable if advertised |
+| `XR_KHR_maintenance1` | Enable if advertised (included in the pinned registry's promotion list) |
+
+`XR_EXT_hand_interaction` is **not** promoted to 1.1. Preserve it if requested;
+it is not auto-enabled merely because the runtime advertises it. The parent
+provided its availability; the device notes list extensions non-exhaustively.
+
+The registry's `XR_VERSION_1_1` feature introduces 13 profile paths. For
+Samsung Odyssey, HP mixed reality, HTC Cosmos/Focus3, ML2 and the three
+ByteDance Pico profiles, drop a whole suggestion call with success when the
+corresponding extension is absent. Keep it when the extension is enabled.
+Drop the five new Meta paths: `touch_pro_controller`, `touch_plus_controller`,
+`touch_controller_rift_cv1`, `touch_controller_quest_1_rift_s`, and
+`touch_controller_quest_2`. The verified runtime notes do not list these;
+Pro/Plus promotion also renames several components, so the old extension's
+presence alone does not prove support for the new profile. This layer does
+not implement those component conversions. Existing old Pro/Plus profile
+paths are passed through if the app uses them.
+
+Preserve the documented `oculus/touch_controller`, `khr/simple_controller`,
+`valve/frame_controller` and original PC profile paths. The notes' "usual PC
+controllers" is not a complete enumerated list: availability of promoted PC
+profiles is inferred from the runtime's extension advertisement, not invented
+from that phrase. OpenXR has no general profile enumeration API. Dropping
+suggestions prevents an unsupported 1.1 profile from aborting initialization;
+it does not create bindings, so the app must also suggest a supported fallback.
+
+## Headers and licensing
+
+The required public headers (`openxr.h`, `openxr_platform.h`,
+`openxr_platform_defines.h`) are unmodified from
+[OpenXR-SDK release-1.1.63](https://github.com/KhronosGroup/OpenXR-SDK/tree/release-1.1.63/include/openxr),
+commit [f2448a8](https://github.com/KhronosGroup/OpenXR-SDK/commit/f2448a8797c85814aa892efc1ab8707900fbcc78).
+The requested filename `loader_interfaces.h` no longer exists in 1.1 SDK
+releases: negotiation was ratified and moved to `openxr_loader_negotiation.h`
+in 1.0.33 ([spec history L166–186](https://github.com/KhronosGroup/OpenXR-Docs/blob/release-1.1.63/specification/sources/chapters/versions.adoc#L166)).
+To retain that requested interface filename, the layer uses the unmodified,
+ABI-compatible [last legacy header from SDK-Source release-1.0.32](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.0.32/src/common/loader_interfaces.h).
+Only these four headers are vendored. They offer Apache-2.0 OR MIT; this
+vendoring uses Apache-2.0, reproduced in [vendor/LICENSE](vendor/LICENSE).
+
+## Android discovery and coexistence
+
+**Minimum asset-discovery loader release: 1.0.25 (2022-09-02).** Its
+[release commit, 15c3d8e](https://github.com/KhronosGroup/OpenXR-SDK-Source/commit/15c3d8eb99994e5365d6b6f96eefaf4c51a65a9d)
+explicitly announces APK-packaged API layers;
+[manifest_file.cpp L665–723](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.0.25/src/loader/manifest_file.cpp#L665)
+implements discovery, and [L934–940](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.0.25/src/loader/manifest_file.cpp#L934)
+adds asset manifests after filesystem manifests. This is not a 1.1-only feature.
+
+**For an app requesting API 1.1, use a 1.1 loader (first release 1.1.36) or
+newer.** A 1.0 loader rejects the request before the layer can downgrade it;
+see [loader_core.cpp L217–230](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_core.cpp#L217).
+The runtime can remain 1.0.
+
+Source inspection at release-1.1.63 confirms:
+
+- [manifest_file.cpp L720–783](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L720)
+  uses the initialized Android asset manager and scans
+  `openxr/1/api_layers/implicit.d/` for JSON. The application must initialize
+  the loader with its Android context (`xrInitializeLoaderKHR`). In the APK,
+  the entry is `assets/openxr/1/api_layers/implicit.d/XrApiLayer_FRAME_compat.json`.
+- A bare `library_path`, as used here, is **not explicitly concatenated** with
+  `nativeLibraryDir`. [L878–900](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L878)
+  leaves a bare name for normal dynamic-linker search in the application's
+  namespace (including its native library directory). Relative paths with a
+  slash use [LocateLibraryInAssets L943–952](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L943),
+  which resolves against `GetAndroidNativeLibraryDir()`.
+  [loader_init_data.cpp L87–96](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/loader_init_data.cpp#L87)
+  obtains the asset manager and `ApplicationInfo.nativeLibraryDir` via JNI.
+  Wolvic's supplied manifest has `android:extractNativeLibs="true"`.
+- [android_utilities.cpp L267–322](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/android_utilities.cpp#L267)
+  handles runtime broker discovery, not APK layer discovery. Its
+  `native_lib_dir + so_filename` and `dlopen` refer to the runtime package.
+  They must not be confused with the app's layer library resolution.
+- [manifest_file.cpp L1008–1023](https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/release-1.1.63/src/loader/manifest_file.cpp#L1008)
+  retains filesystem manifests and then appends asset manifests. This leaves
+  `/vendor`'s `XR_APILAYER_VALVE_fdm_injection` discoverable. This layer advances
+  `nextInfo` exactly once, uses next-layer GIPA, preserves the rest of the
+  create-info chain and never opens `vrclient.so` directly. No environment
+  layer-list override or assumed ordering is needed.
+
+`DISABLE_FRAME_XR_COMPAT` is the manifest's disable environment variable.
+Leave it unset to activate the implicit layer. No `enable_environment` is
+required.
+
+## Rebuild and verify
+
+NDK **r30 / 30.0.16248370**, installed at
+`~/Library/Android/ndk/30.0.16248370`, was the latest stable/LTS package shown
+by the [Android download page](https://developer.android.com/ndk/downloads)
+on 2026-09-28. Downloaded
+[android-ndk-r30-darwin.dmg](https://dl.google.com/android/repository/android-ndk-r30-darwin.dmg)
+(1,072,970,961 bytes). The page publishes SHA-1, not SHA-256:
+
+```
+expected: 48591224b6657f46eebbc9d95d4af09bbed8d107
+actual:   48591224b6657f46eebbc9d95d4af09bbed8d107  (PASS)
+```
+
+Mounted read-only with `hdiutil`; copied
+`AndroidNDK16248370.app/Contents/NDK` into that version directory. Despite the
+`darwin-x86_64` toolchain directory name, clang is universal arm64/x86_64 and
+ran on this Apple Silicon Mac.
+
+```sh
+frame/openxr-compat/build.sh
+# Or set ANDROID_NDK_HOME to an installed NDK.
+cmake -S frame/openxr-compat -B frame/openxr-compat/build-host -G Ninja
+cmake --build frame/openxr-compat/build-host
+ctest --test-dir frame/openxr-compat/build-host --output-on-failure
+```
+
+The script produces arm64-v8a / android-24, C++17, `-O2`, static libc++, hidden
+internal symbols, stripped output, and `-Wl,-z,max-page-size=16384`.
+The committed prebuilt is `prebuilt/arm64-v8a/libXrApiLayer_FRAME_compat.so`.
+Its SHA-256 is recorded below with the APK checks.
+
+[Host test output](evidence/ctest.txt): two tests passed, covering pure logic
+and the actual layer with a fake next layer and host-only log/JNI shims.
+[Full llvm-readelf -d -s -l output](evidence/readelf.txt) records three LOAD
+segments aligned `0x4000`, only `xrNegotiateLoaderApiLayerInterface` exported,
+and only `libc.so`, `libm.so`, `libdl.so`, `liblog.so` as NEEDED libraries.
+All 46 undefined imports are versioned `@LIBC` except `__android_log_print`.
+There is no `libc++_shared.so` dependency and no unstripped `.symtab`.
+
+No independent model review was run: the task explicitly prohibits delegation.
+No `CODING_STANDARDS.md` exists in this worktree or the primary worktree.
+
+## Wolvic injection artifact (Mac only)
+
+Copied `/tmp/vrapk/wq-dec` to `/tmp/vrapk/wq-layer-dec`; retained its existing
+LAUNCHER fix and native-library extraction setting. Added only:
+
+```
+assets/openxr/1/api_layers/implicit.d/XrApiLayer_FRAME_compat.json
+lib/arm64-v8a/libXrApiLayer_FRAME_compat.so
+```
+
+Built using `/tmp/vrapk/jdk/Contents/Home/bin/java` and
+`/tmp/vrapk/apktool_3.0.3.jar`, then signed in place using
+`/tmp/vrapk/uber-apk-signer-1.3.0.jar --overwrite` (embedded debug certificate):
+
+```sh
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/apktool_3.0.3.jar \
+  b /tmp/vrapk/wq-layer-dec -o /tmp/vrapk/wolvic-quest-compat.apk
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/uber-apk-signer-1.3.0.jar \
+  -a /tmp/vrapk/wolvic-quest-compat.apk --overwrite
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/uber-apk-signer-1.3.0.jar \
+  -a /tmp/vrapk/wolvic-quest-compat.apk --onlyVerify
+```
+
+Final APK: `/tmp/vrapk/wolvic-quest-compat.apk` (not committed).
+The bundled `lib/arm64-v8a/libopenxr_loader.so` is byte-for-byte unchanged.
+Its strings include both `openxr/1/api_layers/implicit.d/` and
+`openxr/1/api_layers/explicit.d/`, `AddManifestFilesAndroid` error messages,
+and `xrLocateSpaces`. Thus it contains APK asset discovery and evidence of
+1.1 command support. Its exact upstream release number was not established
+from the binary; runtime execution of those paths remains unverified.
+
+Prebuilt library SHA-256:
+
+```
+479d31c374f137906e03f73209b581d65d7e6a41b8476e6425fa55a6aa40bd68
+```
+
+APK SHA-256:
+
+```
+355a681625e38b71563dcffecb031799eff27894d6ab910a659bace057e82c1f
+```
+
+Final `--onlyVerify` exited 0: zip alignment verified, v2/v3 signatures
+verified, one APK processed and zero errors. ZIP readback confirmed that the
+injected library and manifest match the committed inputs, the loader is
+unchanged, and the binary Android manifest retains the LAUNCHER category.
+See [APK verification evidence](evidence/apk-verification.txt).
@@ -0,0 +1,21 @@
+{
+  "file_format_version": "1.0.0",
+  "api_layer": {
+    "name": "XR_APILAYER_FRAME_compat",
+    "library_path": "libXrApiLayer_FRAME_compat.so",
+    "api_version": "1.1",
+    "implementation_version": "1",
+    "description": "Steam Frame OpenXR 1.1 to 1.0 compatibility",
+    "disable_environment": "DISABLE_FRAME_XR_COMPAT",
+    "instance_extensions": [
+      {
+        "name": "XR_KHR_android_thread_settings",
+        "extension_version": "6"
+      },
+      {
+        "name": "XR_OCULUS_android_session_state_enable",
+        "extension_version": "1"
+      }
+    ]
+  }
+}
@@ -0,0 +1,12 @@
+#!/bin/sh
+set -eu
+here=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+ndk=${ANDROID_NDK_HOME:-"$HOME/Library/Android/ndk/30.0.16248370"}
+cmake -S "$here" -B "$here/build-android" -G Ninja \
+  -DCMAKE_TOOLCHAIN_FILE="$ndk/build/cmake/android.toolchain.cmake" \
+  -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=android-24 \
+  -DANDROID_STL=c++_static -DCMAKE_BUILD_TYPE=Release
+cmake --build "$here/build-android"
+mkdir -p "$here/prebuilt/arm64-v8a"
+cp "$here/build-android/libXrApiLayer_FRAME_compat.so" "$here/prebuilt/arm64-v8a/"
+shasum -a 256 "$here/prebuilt/arm64-v8a/libXrApiLayer_FRAME_compat.so"
@@ -0,0 +1,88 @@
+#pragma once
+#include <openxr/openxr.h>
+#include <algorithm>
+#include <string>
+#include <vector>
+
+namespace frame {
+using Names = std::vector<std::string>;
+inline constexpr const char* layerName = "XR_APILAYER_FRAME_compat";
+inline constexpr const char* stubs[] = {"XR_KHR_android_thread_settings", "XR_OCULUS_android_session_state_enable"};
+// OpenXR-Docs release-1.1.63 registry: promotedto="XR_VERSION_1_1".
+inline constexpr const char* promotions[] = {
+    "XR_KHR_locate_spaces", "XR_EXT_local_floor", "XR_EXT_uuid", "XR_EXT_palm_pose",
+    "XR_VARJO_quad_views", "XR_EXT_samsung_odyssey_controller", "XR_EXT_hp_mixed_reality_controller",
+    "XR_HTC_vive_cosmos_controller_interaction", "XR_HTC_vive_focus3_controller_interaction",
+    "XR_ML_ml2_controller_interaction", "XR_FB_touch_controller_pro", "XR_META_touch_controller_plus",
+    "XR_BD_controller_interaction", "XR_KHR_maintenance1"};
+inline bool has(const Names& names, const std::string& n) {
+    return std::find(names.begin(), names.end(), n) != names.end();
+}
+inline bool downgrade(XrVersion v) { return v >= XR_MAKE_VERSION(1, 1, 0); }
+inline XrVersion runtimeVersion(XrVersion v) { return downgrade(v) ? XR_API_VERSION_1_0 : v; }
+struct ExtensionPlan { Names downstream, stubbed, missing, added; };
+inline ExtensionPlan extensions(const Names& requested, const Names& available, bool promote) {
+    ExtensionPlan p;
+    for (const auto& n : requested) {
+        if (!has(available, n) && (n == stubs[0] || n == stubs[1])) p.stubbed.push_back(n);
+        else {
+            if (!has(p.downstream, n)) p.downstream.push_back(n);
+            if (!has(available, n)) p.missing.push_back(n);
+        }
+    }
+    if (promote) for (auto n : promotions) if (has(available, n) && !has(p.downstream, n)) {
+        p.downstream.push_back(n); p.added.push_back(n);
+    }
+    return p;
+}
+// 1.1's grip_surface is XR_EXT_palm_pose's palm_ext renamed (same pose), not the grip pose.
+inline std::string rewritePath(std::string p, bool palm) {
+    const std::string suffix = "/input/grip_surface/pose";
+    if (palm && (p == "/user/hand/left" + suffix || p == "/user/hand/right" + suffix))
+        p.replace(p.size() - suffix.size(), suffix.size(), "/input/palm_ext/pose");
+    return p;
+}
+// Profiles added to 1.1. The three legacy Meta splits have no 1.0 extension.
+// The renamed Pro/Plus profiles have different component semantics; do not
+// claim the old extension implements the new profile merely because it exists.
+inline bool dropProfile(const std::string& p, const Names& enabled) {
+    for (auto name : {"touch_pro_controller", "touch_plus_controller", "touch_controller_rift_cv1",
+                      "touch_controller_quest_1_rift_s", "touch_controller_quest_2"})
+        if (p == std::string("/interaction_profiles/meta/") + name) return true;
+    const char* profiles[][2] = {
+        {"samsung/odyssey_controller", "XR_EXT_samsung_odyssey_controller"},
+        {"hp/mixed_reality_controller", "XR_EXT_hp_mixed_reality_controller"},
+        {"htc/vive_cosmos_controller", "XR_HTC_vive_cosmos_controller_interaction"},
+        {"htc/vive_focus3_controller", "XR_HTC_vive_focus3_controller_interaction"},
+        {"ml/ml2_controller", "XR_ML_ml2_controller_interaction"},
+        {"bytedance/pico_neo3_controller", "XR_BD_controller_interaction"},
+        {"bytedance/pico4_controller", "XR_BD_controller_interaction"},
+        {"bytedance/pico_g3_controller", "XR_BD_controller_interaction"}};
+    for (auto& entry : profiles) if (p == std::string("/interaction_profiles/") + entry[0])
+        return !has(enabled, entry[1]);
+    return false;
+}
+inline XrStructureType extensionType(XrStructureType t) {
+    switch (t) {
+    case XR_TYPE_SPACES_LOCATE_INFO: return XR_TYPE_SPACES_LOCATE_INFO_KHR;
+    case XR_TYPE_SPACE_LOCATIONS: return XR_TYPE_SPACE_LOCATIONS_KHR;
+    case XR_TYPE_SPACE_VELOCITIES: return XR_TYPE_SPACE_VELOCITIES_KHR;
+    default: return t;
+    }
+}
+inline XrResult locate(PFN_xrLocateSpacesKHR next, XrSession session,
+                       const XrSpacesLocateInfo* info, XrSpaceLocations* locations) {
+    if (!info || !locations) return XR_ERROR_VALIDATION_FAILURE;
+    static_assert(XR_TYPE_SPACE_VELOCITIES == XR_TYPE_SPACE_VELOCITIES_KHR);
+    static_assert(XR_TYPE_SPACE_LOCATIONS == XR_TYPE_SPACE_LOCATIONS_KHR);
+    static_assert(XR_TYPE_SPACES_LOCATE_INFO == XR_TYPE_SPACES_LOCATE_INFO_KHR);
+    auto in = *info;
+    auto out = *locations;
+    in.type = extensionType(in.type); out.type = extensionType(out.type);
+    // The enums and typedefs are exact aliases. All chained velocities,
+    // including unknown next structures, can be forwarded without mutation.
+    const auto result = next(session, &in, &out);
+    locations->locationCount = out.locationCount;
+    return result;
+}
+}
@@ -0,0 +1,29 @@
+2026-09-28, Mac only; no device connection.
+APK: /tmp/vrapk/wolvic-quest-compat.apk
+SHA-256: 355a681625e38b71563dcffecb031799eff27894d6ab910a659bace057e82c1f
+
+Command:
+/tmp/vrapk/jdk/Contents/Home/bin/java -jar /tmp/vrapk/uber-apk-signer-1.3.0.jar -a /tmp/vrapk/wolvic-quest-compat.apk --onlyVerify
+Exit status: 0
+Relevant output:
+- zipalign verified
+- signature verified [v2, v3]
+Successfully processed 1 APKs and 0 errors in 0.63 seconds.
+
+ZIP readback checks: PASS
+- Injected JSON identical to frame/openxr-compat/XrApiLayer_FRAME_compat.json.
+- Injected SO identical to prebuilt/arm64-v8a/libXrApiLayer_FRAME_compat.so.
+- Existing libopenxr_loader.so identical to /tmp/vrapk/wq-dec version.
+- Binary AndroidManifest.xml contains android.intent.category.LAUNCHER.
+
+Loader strings present:
+openxr/1/api_layers/implicit.d/
+openxr/1/api_layers/explicit.d/
+ApiLayerManifestFile::AddManifestFilesAndroid unable to open asset
+xrLocateSpaces
+
+NDK: 30.0.16248370 (r30)
+DMG size: 1072970961 bytes
+Download-page SHA-1: 48591224b6657f46eebbc9d95d4af09bbed8d107
+Measured SHA-1:      48591224b6657f46eebbc9d95d4af09bbed8d107
+SHA check: PASS
@@ -0,0 +1,9 @@
+Test project /Users/saphid/projects/steam-frame-xrlayer/frame/openxr-compat/build-host
+    Start 1: compat_logic
+1/2 Test #1: compat_logic .....................   Passed    0.01 sec
+    Start 2: layer_dispatch
+2/2 Test #2: layer_dispatch ...................   Passed    0.42 sec
+
+100% tests passed out of 2
+
+Total Test time (real) =   0.43 sec
@@ -0,0 +1,110 @@
+
+Elf file type is DYN (Shared object file)
+Entry point 0x0
+There are 9 program headers, starting at offset 64
+
+Program Headers:
+  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
+  PHDR           0x000040 0x0000000000000040 0x0000000000000040 0x0001f8 0x0001f8 R   0x8
+  LOAD           0x000000 0x0000000000000000 0x0000000000000000 0x0169e0 0x0169e0 R E 0x4000
+  LOAD           0x0169e0 0x000000000001a9e0 0x000000000001a9e0 0x000a90 0x001620 RW  0x4000
+  LOAD           0x017470 0x000000000001f470 0x000000000001f470 0x000068 0x000bc0 RW  0x4000
+  DYNAMIC        0x017048 0x000000000001b048 0x000000000001b048 0x0001c0 0x0001c0 RW  0x8
+  GNU_RELRO      0x0169e0 0x000000000001a9e0 0x000000000001a9e0 0x000a90 0x001620 R   0x1
+  GNU_EH_FRAME   0x004fb4 0x0000000000004fb4 0x0000000000004fb4 0x00070c 0x00070c R   0x4
+  GNU_STACK      0x000000 0x0000000000000000 0x0000000000000000 0x000000 0x000000 RW  0x0
+  NOTE           0x000238 0x0000000000000238 0x0000000000000238 0x0000bc 0x0000bc R   0x4
+
+ Section to Segment mapping:
+  Segment Sections...
+   00
+   01     .note.android.ident .note.gnu.build-id .dynsym .gnu.version .gnu.version_r .gnu.hash .dynstr .rela.dyn .rela.plt .gcc_except_table .rodata .eh_frame_hdr .eh_frame .text __lcxx_override .plt
+   02     .data.rel.ro .fini_array .init_array .dynamic .got .got.plt .relro_padding
+   03     .data .bss
+   04     .dynamic
+   05     .data.rel.ro .fini_array .init_array .dynamic .got .got.plt .relro_padding
+   06     .eh_frame_hdr
+   07
+   08     .note.android.ident .note.gnu.build-id
+   None   .comment .shstrtab
+Dynamic section at offset 0x17048 contains 28 entries:
+  Tag                Type           Name/Value
+  0x0000000000000001 (NEEDED)       Shared library: [liblog.so]
+  0x0000000000000001 (NEEDED)       Shared library: [libm.so]
+  0x0000000000000001 (NEEDED)       Shared library: [libdl.so]
+  0x0000000000000001 (NEEDED)       Shared library: [libc.so]
+  0x000000000000000e (SONAME)       Library soname: [libXrApiLayer_FRAME_compat.so]
+  0x000000000000001e (FLAGS)        BIND_NOW
+  0x000000006ffffffb (FLAGS_1)      NOW
+  0x0000000000000007 (RELA)         0xae8
+  0x0000000000000008 (RELASZ)       5424 (bytes)
+  0x0000000000000009 (RELAENT)      24 (bytes)
+  0x000000006ffffff9 (RELACOUNT)    225
+  0x0000000000000017 (JMPREL)       0x2018
+  0x0000000000000002 (PLTRELSZ)     1080 (bytes)
+  0x0000000000000003 (PLTGOT)       0x1b2f0
+  0x0000000000000014 (PLTREL)       RELA
+  0x0000000000000006 (SYMTAB)       0x2f8
+  0x000000000000000b (SYMENT)       24 (bytes)
+  0x0000000000000005 (STRTAB)       0x838
+  0x000000000000000a (STRSZ)        681 (bytes)
+  0x000000006ffffef5 (GNU_HASH)     0x818
+  0x0000000000000019 (INIT_ARRAY)   0x1b030
+  0x000000000000001b (INIT_ARRAYSZ) 24 (bytes)
+  0x000000000000001a (FINI_ARRAY)   0x1b020
+  0x000000000000001c (FINI_ARRAYSZ) 16 (bytes)
+  0x000000006ffffff0 (VERSYM)       0x778
+  0x000000006ffffffe (VERNEED)      0x7d8
+  0x000000006fffffff (VERNEEDNUM)   2
+  0x0000000000000000 (NULL)         0x0
+
+Symbol table '.dynsym' contains 48 entries:
+   Num:    Value          Size Type    Bind   Vis       Ndx Name
+     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT   UND
+     1: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __cxa_finalize@LIBC
+     2: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __cxa_atexit@LIBC
+     3: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND strcmp@LIBC
+     4: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __android_log_print
+     5: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __stack_chk_fail@LIBC
+     6: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND memmove@LIBC
+     7: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND strlen@LIBC
+     8: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND memcpy@LIBC
+     9: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __strcpy_chk@LIBC
+    10: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND memset@LIBC
+    11: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND memcmp@LIBC
+    12: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_mutex_lock@LIBC
+    13: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_mutex_unlock@LIBC
+    14: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __errno@LIBC
+    15: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND snprintf@LIBC
+    16: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_mutex_destroy@LIBC
+    17: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND strerror_r@LIBC
+    18: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND abort@LIBC
+    19: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_getspecific@LIBC
+    20: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_setspecific@LIBC
+    21: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_key_create@LIBC
+    22: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND syscall@LIBC
+    23: 0000000000000000     0 OBJECT  GLOBAL DEFAULT   UND __sF@LIBC
+    24: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND fwrite@LIBC
+    25: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND vfprintf@LIBC
+    26: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND fputc@LIBC
+    27: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND vasprintf@LIBC
+    28: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND android_set_abort_message@LIBC
+    29: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND openlog@LIBC
+    30: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND syslog@LIBC
+    31: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND closelog@LIBC
+    32: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND malloc@LIBC
+    33: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND free@LIBC
+    34: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND posix_memalign@LIBC
+    35: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND realloc@LIBC
+    36: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_once@LIBC
+    37: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_key_delete@LIBC
+    38: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND getauxval@LIBC
+    39: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND __system_property_get@LIBC
+    40: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND strncmp@LIBC
+    41: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND fprintf@LIBC
+    42: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND fflush@LIBC
+    43: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_rwlock_wrlock@LIBC
+    44: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_rwlock_unlock@LIBC
+    45: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND dl_iterate_phdr@LIBC
+    46: 0000000000000000     0 FUNC    GLOBAL DEFAULT   UND pthread_rwlock_rdlock@LIBC
+    47: 00000000000081a0   284 FUNC    GLOBAL DEFAULT    14 xrNegotiateLoaderApiLayerInterface
@@ -0,0 +1,289 @@
+#include "compat_logic.h"
+#include <loader_interfaces.h>
+#include <jni.h>
+#include <openxr/openxr_platform.h>
+#include <android/log.h>
+#include <cstring>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#define LOG(...) __android_log_print(ANDROID_LOG_INFO, "FrameXrCompat", __VA_ARGS__)
+#define GUARD_END catch (const std::bad_alloc&) { return XR_ERROR_OUT_OF_MEMORY; } catch (...) { return XR_ERROR_RUNTIME_FAILURE; }
+namespace {
+struct Dispatch {
+    PFN_xrGetInstanceProcAddr gipa{};
+    PFN_xrDestroyInstance destroy{};
+    PFN_xrCreateSession createSession{};
+    PFN_xrDestroySession destroySession{};
+    PFN_xrLocateSpacesKHR locate{};
+    PFN_xrStringToPath stringToPath{};
+    PFN_xrPathToString pathToString{};
+    PFN_xrSuggestInteractionProfileBindings suggest{};
+    PFN_xrSetAndroidApplicationThreadKHR thread{};
+    PFN_xrRequestDisplayRefreshRateFB refresh{};
+    frame::Names enabled, stubbed;
+    XrInstance instance{};
+    bool promote{}, palm{};
+};
+std::mutex mutex;
+std::unordered_map<XrInstance, std::shared_ptr<Dispatch>> instances;
+std::unordered_map<XrSession, std::shared_ptr<Dispatch>> sessions;
+// No runtime library is opened here: every call goes through the next layer.
+PFN_xrEnumerateInstanceExtensionProperties enumerateNext{};
+template<class T> T proc(PFN_xrGetInstanceProcAddr gipa, XrInstance i, const char* name) {
+    PFN_xrVoidFunction f{};
+    if (XR_FAILED(gipa(i, name, &f))) return nullptr;
+    return reinterpret_cast<T>(f);
+}
+std::shared_ptr<Dispatch> get(XrInstance i) {
+    std::lock_guard<std::mutex> lock(mutex);
+    auto it = instances.find(i); return it == instances.end() ? nullptr : it->second;
+}
+std::shared_ptr<Dispatch> get(XrSession s) {
+    std::lock_guard<std::mutex> lock(mutex);
+    auto it = sessions.find(s); return it == sessions.end() ? nullptr : it->second;
+}
+XrResult properties(PFN_xrEnumerateInstanceExtensionProperties fn,
+                    std::vector<XrExtensionProperties>& out) {
+    if (!fn) return XR_ERROR_FUNCTION_UNSUPPORTED;
+    for (int attempt = 0; attempt < 4; ++attempt) {
+        uint32_t n{};
+        auto r = fn(nullptr, 0, &n, nullptr);
+        if (XR_FAILED(r)) return r;
+        out.assign(n, {XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, 0});
+        if (!n) return XR_SUCCESS;
+        r = fn(nullptr, n, &n, out.data());
+        if (r == XR_ERROR_SIZE_INSUFFICIENT) continue;
+        if (XR_FAILED(r)) return r;
+        out.resize(n); return XR_SUCCESS;
+    }
+    return XR_ERROR_RUNTIME_FAILURE;
+}
+XrResult XRAPI_CALL enumerate(const char* layer, uint32_t capacity, uint32_t* count,
+                              XrExtensionProperties* output) try {
+    if (!count || (capacity && !output)) return XR_ERROR_VALIDATION_FAILURE;
+    const bool own = layer && std::strcmp(layer, frame::layerName) == 0;
+    PFN_xrEnumerateInstanceExtensionProperties next;
+    { std::lock_guard<std::mutex> lock(mutex); next = enumerateNext; }
+    if (layer && *layer && !own) return next ? next(layer, capacity, count, output) : XR_ERROR_API_LAYER_NOT_PRESENT;
+    std::vector<XrExtensionProperties> all;
+    if (!own && next) {
+        auto r = properties(next, all); if (XR_FAILED(r)) return r;
+    }
+    for (unsigned i = 0; i < 2; ++i) {
+        bool found = false;
+        for (auto& e : all) if (!std::strcmp(e.extensionName, frame::stubs[i])) found = true;
+        if (!found) {
+            XrExtensionProperties p{XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, i == 0 ? XR_KHR_android_thread_settings_SPEC_VERSION : 1u};
+            std::strcpy(p.extensionName, frame::stubs[i]); all.push_back(p);
+        }
+    }
+    *count = static_cast<uint32_t>(all.size());
+    LOG("enumerate extensions: %u (includes stubs)", *count);
+    if (!capacity) return XR_SUCCESS;
+    if (capacity < all.size()) return XR_ERROR_SIZE_INSUFFICIENT;
+    for (size_t i = 0; i < all.size(); ++i) {
+        if (output[i].type != XR_TYPE_EXTENSION_PROPERTIES) return XR_ERROR_VALIDATION_FAILURE;
+        std::strcpy(output[i].extensionName, all[i].extensionName);
+        output[i].extensionVersion = all[i].extensionVersion;
+    }
+    return XR_SUCCESS;
+} GUARD_END
+XrResult XRAPI_CALL destroyInstance(XrInstance i) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->destroy(i);
+    if (XR_SUCCEEDED(r)) {
+        std::lock_guard<std::mutex> lock(mutex);
+        for (auto it = sessions.begin(); it != sessions.end();) {
+            if (it->second == d) it = sessions.erase(it); else ++it;
+        }
+        instances.erase(i);
+        if (instances.empty()) enumerateNext = nullptr;
+    }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL createSession(XrInstance i, const XrSessionCreateInfo* info, XrSession* s) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->createSession(i, info, s);
+    if (XR_SUCCEEDED(r)) {
+        try { std::lock_guard<std::mutex> lock(mutex); sessions.emplace(*s, d); }
+        catch (...) { d->destroySession(*s); *s = XR_NULL_HANDLE; throw; }
+    }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL destroySession(XrSession s) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->destroySession(s);
+    if (XR_SUCCEEDED(r)) { std::lock_guard<std::mutex> lock(mutex); sessions.erase(s); }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL locateSpaces(XrSession s, const XrSpacesLocateInfo* in, XrSpaceLocations* out) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (!d->locate) return XR_ERROR_FUNCTION_UNSUPPORTED;
+    static std::once_flag logged;  // called every frame
+    std::call_once(logged, [] { LOG("xrLocateSpaces -> xrLocateSpacesKHR (core/KHR type aliases)"); });
+    return frame::locate(d->locate, s, in, out);
+} GUARD_END
+XrResult XRAPI_CALL threadSettings(XrSession s, XrAndroidThreadTypeKHR type, uint32_t tid) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (frame::has(d->stubbed, frame::stubs[0])) {
+        LOG("stub xrSetAndroidApplicationThreadKHR type=%d tid=%u -> XR_SUCCESS (no scheduling change)", type, tid);
+        return XR_SUCCESS;
+    }
+    return d->thread ? d->thread(s, type, tid) : XR_ERROR_FUNCTION_UNSUPPORTED;
+} GUARD_END
+// SteamVR offers only the current refresh rate; Quest apps ask for 72/90/120 Hz
+// and abort on the error, so keep the current rate and report success.
+XrResult XRAPI_CALL requestRefreshRate(XrSession s, float hz) try {
+    auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
+    auto r = d->refresh(s, hz);
+    if (r == XR_ERROR_DISPLAY_REFRESH_RATE_UNSUPPORTED_FB) {
+        LOG("xrRequestDisplayRefreshRateFB %.1f Hz unsupported; keeping the current rate", hz);
+        return XR_SUCCESS;
+    }
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL stringToPath(XrInstance i, const char* path, XrPath* out) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (!path) return XR_ERROR_VALIDATION_FAILURE;
+    auto rewritten = frame::rewritePath(path, d->palm);
+    if (rewritten != path) LOG("path %s -> %s", path, rewritten.c_str());
+    return d->stringToPath(i, rewritten.c_str(), out);
+} GUARD_END
+XrResult pathString(const Dispatch& d, XrPath path, std::string& out) {
+    uint32_t n{};
+    auto r = d.pathToString(d.instance, path, 0, &n, nullptr);
+    if (XR_FAILED(r)) return r;
+    std::vector<char> text(n);
+    r = d.pathToString(d.instance, path, n, &n, text.data());
+    if (XR_SUCCEEDED(r)) out.assign(text.data());
+    return r;
+}
+XrResult XRAPI_CALL suggest(XrInstance i, const XrInteractionProfileSuggestedBinding* info) try {
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    if (!info || (info->countSuggestedBindings && !info->suggestedBindings)) return XR_ERROR_VALIDATION_FAILURE;
+    std::string profile;
+    auto r = pathString(*d, info->interactionProfile, profile);
+    if (XR_FAILED(r)) return r;
+    if (d->promote && frame::dropProfile(profile, d->enabled)) {
+        LOG("drop unsupported 1.1 interaction profile %s (%u suggestions)", profile.c_str(), info->countSuggestedBindings);
+        return XR_SUCCESS;
+    }
+    auto copy = *info;
+    std::vector<XrActionSuggestedBinding> bindings;
+    for (uint32_t index = 0; index < info->countSuggestedBindings; ++index) {
+        auto b = info->suggestedBindings[index];
+        std::string path;
+        r = pathString(*d, b.binding, path); if (XR_FAILED(r)) return r;
+        auto rewritten = frame::rewritePath(path, d->palm);
+        if (rewritten != path) {
+            LOG("binding %s -> %s", path.c_str(), rewritten.c_str());
+            r = d->stringToPath(i, rewritten.c_str(), &b.binding); if (XR_FAILED(r)) return r;
+        }
+        bindings.push_back(b);
+    }
+    copy.suggestedBindings = bindings.data();
+    return d->suggest(i, &copy);
+} GUARD_END
+XrResult XRAPI_CALL gipa(XrInstance, const char*, PFN_xrVoidFunction*);
+XrResult XRAPI_CALL createLayer(const XrInstanceCreateInfo* info, const XrApiLayerCreateInfo* layer,
+                               XrInstance* instance) try {
+    if (!info || !instance || !layer || layer->structType != XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO ||
+        layer->structVersion != XR_API_LAYER_CREATE_INFO_STRUCT_VERSION || layer->structSize != sizeof(*layer) ||
+        !layer->nextInfo || layer->nextInfo->structType != XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO ||
+        layer->nextInfo->structVersion != XR_API_LAYER_NEXT_INFO_STRUCT_VERSION ||
+        layer->nextInfo->structSize != sizeof(XrApiLayerNextInfo) ||
+        !layer->nextInfo->nextGetInstanceProcAddr || !layer->nextInfo->nextCreateApiLayerInstance ||
+        (info->enabledExtensionCount && !info->enabledExtensionNames)) return XR_ERROR_INITIALIZATION_FAILED;
+    *instance = XR_NULL_HANDLE;
+    auto next = layer->nextInfo->nextGetInstanceProcAddr;
+    auto enumFn = proc<PFN_xrEnumerateInstanceExtensionProperties>(next, XR_NULL_HANDLE, "xrEnumerateInstanceExtensionProperties");
+    std::vector<XrExtensionProperties> available;
+    auto r = properties(enumFn, available); if (XR_FAILED(r)) { LOG("runtime extension enumeration failed: %d", r); return r; }
+    frame::Names requested, supported;
+    for (auto& p : available) supported.emplace_back(p.extensionName);
+    for (uint32_t n = 0; n < info->enabledExtensionCount; ++n) {
+        if (!info->enabledExtensionNames[n]) return XR_ERROR_VALIDATION_FAILURE;
+        requested.emplace_back(info->enabledExtensionNames[n]);
+    }
+    auto d = std::make_shared<Dispatch>();
+    d->promote = frame::downgrade(info->applicationInfo.apiVersion);
+    auto plan = frame::extensions(requested, supported, d->promote);
+    for (auto& n : plan.added) LOG("enable promoted extension %s", n.c_str());
+    for (auto& n : plan.stubbed) LOG("emulate missing extension %s; remove downstream", n.c_str());
+    for (auto& n : plan.missing) LOG("unsupported extension %s retained; runtime must reject", n.c_str());
+    auto copy = *info;
+    copy.applicationInfo.apiVersion = frame::runtimeVersion(info->applicationInfo.apiVersion);
+    if (d->promote) LOG("API %u.%u.%u -> 1.0.%u", unsigned(XR_VERSION_MAJOR(info->applicationInfo.apiVersion)),
+        unsigned(XR_VERSION_MINOR(info->applicationInfo.apiVersion)), unsigned(XR_VERSION_PATCH(info->applicationInfo.apiVersion)),
+        unsigned(XR_VERSION_PATCH(copy.applicationInfo.apiVersion)));
+    std::vector<const char*> names;
+    for (auto& n : plan.downstream) names.push_back(n.c_str());
+    copy.enabledExtensionCount = static_cast<uint32_t>(names.size()); copy.enabledExtensionNames = names.data();
+    auto chain = *layer; chain.nextInfo = layer->nextInfo->next;
+    r = layer->nextInfo->nextCreateApiLayerInstance(&copy, &chain, instance);
+    if (XR_FAILED(r)) { LOG("downstream xrCreateInstance -> %d", r); return r; }
+    d->gipa = next; d->instance = *instance;
+    d->destroy = proc<PFN_xrDestroyInstance>(next, *instance, "xrDestroyInstance");
+    // A successful runtime instance must expose xrDestroyInstance.
+    if (!d->destroy) {  // nothing could ever destroy it, so don't hand it out
+        LOG("invalid downstream: missing xrDestroyInstance"); *instance = XR_NULL_HANDLE; return XR_ERROR_INITIALIZATION_FAILED;
+    }
+    try {
+        d->enabled = std::move(plan.downstream); d->stubbed = std::move(plan.stubbed);
+        d->palm = frame::has(d->enabled, "XR_EXT_palm_pose");
+#define LOAD(field, name) d->field = proc<PFN_##name>(next, *instance, #name)
+        LOAD(createSession, xrCreateSession); LOAD(destroySession, xrDestroySession);
+        LOAD(stringToPath, xrStringToPath); LOAD(pathToString, xrPathToString);
+        LOAD(suggest, xrSuggestInteractionProfileBindings);
+        if (frame::has(d->enabled, "XR_KHR_locate_spaces")) LOAD(locate, xrLocateSpacesKHR);
+        if (frame::has(d->enabled, frame::stubs[0])) LOAD(thread, xrSetAndroidApplicationThreadKHR);
+        if (frame::has(d->enabled, "XR_FB_display_refresh_rate")) LOAD(refresh, xrRequestDisplayRefreshRateFB);
+#undef LOAD
+        if (!d->createSession || !d->destroySession || !d->stringToPath || !d->pathToString || !d->suggest) {
+            d->destroy(*instance); *instance = XR_NULL_HANDLE; return XR_ERROR_INITIALIZATION_FAILED;
+        }
+        std::lock_guard<std::mutex> lock(mutex);
+        instances.emplace(*instance, d); enumerateNext = enumFn;
+    } catch (...) { d->destroy(*instance); *instance = XR_NULL_HANDLE; throw; }
+    LOG("created instance; next-layer dispatch retained (Valve layer coexists)");
+    return r;
+} GUARD_END
+XrResult XRAPI_CALL gipa(XrInstance i, const char* name, PFN_xrVoidFunction* out) try {
+    if (!name || !out) return XR_ERROR_VALIDATION_FAILURE;
+    *out = nullptr;
+#define RETURN_PROC(n, fn) if (!std::strcmp(name, n)) { *out = reinterpret_cast<PFN_xrVoidFunction>(fn); return XR_SUCCESS; }
+    RETURN_PROC("xrGetInstanceProcAddr", gipa)
+    RETURN_PROC("xrCreateApiLayerInstance", createLayer)
+    RETURN_PROC("xrEnumerateInstanceExtensionProperties", enumerate)
+    auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
+    RETURN_PROC("xrDestroyInstance", destroyInstance)
+    RETURN_PROC("xrCreateSession", createSession)
+    RETURN_PROC("xrDestroySession", destroySession)
+    RETURN_PROC("xrStringToPath", stringToPath)
+    RETURN_PROC("xrSuggestInteractionProfileBindings", suggest)
+    if (d->locate && d->promote) { RETURN_PROC("xrLocateSpaces", locateSpaces) }
+    if (frame::has(d->stubbed, frame::stubs[0])) { RETURN_PROC("xrSetAndroidApplicationThreadKHR", threadSettings) }
+    if (d->refresh) { RETURN_PROC("xrRequestDisplayRefreshRateFB", requestRefreshRate) }
+#undef RETURN_PROC
+    // Includes xrGetInstanceProperties: report the actual runtime's identity.
+    return d->gipa(i, name, out);
+} GUARD_END
+} // namespace
+extern "C" __attribute__((visibility("default"))) XrResult XRAPI_CALL xrNegotiateLoaderApiLayerInterface(
+    const XrNegotiateLoaderInfo* loader, const char* name, XrNegotiateApiLayerRequest* request) {
+    if (!loader || !name || !request || std::strcmp(name, frame::layerName) ||
+        loader->structType != XR_LOADER_INTERFACE_STRUCT_LOADER_INFO ||
+        loader->structVersion != XR_LOADER_INFO_STRUCT_VERSION || loader->structSize != sizeof(*loader) ||
+        request->structType != XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST ||
+        request->structVersion != XR_API_LAYER_INFO_STRUCT_VERSION || request->structSize != sizeof(*request) ||
+        loader->minInterfaceVersion > 1 || loader->maxInterfaceVersion < 1 ||
+        loader->minApiVersion > XR_CURRENT_API_VERSION || loader->maxApiVersion < XR_MAKE_VERSION(1, 1, 0))
+        return XR_ERROR_INITIALIZATION_FAILED;
+    request->layerInterfaceVersion = 1;
+    request->layerApiVersion = std::min<XrVersion>(XR_CURRENT_API_VERSION, loader->maxApiVersion);
+    request->getInstanceProcAddr = gipa; request->createApiLayerInstance = createLayer;
+    LOG("negotiated interface 1, API 1.1");
+    return XR_SUCCESS;
+}
@@ -0,0 +1,70 @@
+#include "compat_logic.h"
+#include <cstdlib>
+#include <iostream>
+#include <type_traits>
+#define CHECK(expr) do { if (!(expr)) { std::cerr << __LINE__ << ": " #expr "\n"; std::exit(1); } } while (false)
+namespace {
+void* sentinel = reinterpret_cast<void*>(0x1234);
+XrResult XRAPI_CALL fakeLocate(XrSession, const XrSpacesLocateInfo* in, XrSpaceLocations* out) {
+    CHECK(in->type == XR_TYPE_SPACES_LOCATE_INFO_KHR);
+    CHECK(out->type == XR_TYPE_SPACE_LOCATIONS_KHR);
+    CHECK(in->next == sentinel);
+    auto* velocities = static_cast<XrSpaceVelocitiesKHR*>(out->next);
+    CHECK(velocities->type == XR_TYPE_SPACE_VELOCITIES_KHR);
+    CHECK(velocities->next == sentinel);
+    CHECK(in->spaceCount == 1 && in->time == 123);
+    out->locations[0].pose.position.x = 42;
+    velocities->velocities[0].linearVelocity.y = 7;
+    return XR_SUCCESS;
+}
+}
+int main() {
+    using namespace frame;
+    CHECK(!downgrade(XR_MAKE_VERSION(1, 0, 99)));
+    CHECK(runtimeVersion(XR_MAKE_VERSION(1, 0, 42)) == XR_MAKE_VERSION(1, 0, 42));
+    CHECK(runtimeVersion(XR_MAKE_VERSION(1, 1, 0)) == XR_API_VERSION_1_0);
+    CHECK(runtimeVersion(XR_MAKE_VERSION(1, 1, 999)) == XR_API_VERSION_1_0);
+    CHECK(runtimeVersion(XR_MAKE_VERSION(2, 0, 0)) == XR_API_VERSION_1_0);
+    Names available{"XR_KHR_locate_spaces", "XR_EXT_palm_pose", "XR_EXT_hand_interaction", "XR_VARJO_quad_views"};
+    Names requested{stubs[0], stubs[1], "XR_MISSING_test", "XR_EXT_palm_pose"};
+    auto p = extensions(requested, available, true);
+    CHECK(p.stubbed.size() == 2 && p.missing == Names{"XR_MISSING_test"});
+    CHECK(has(p.downstream, "XR_MISSING_test"));
+    CHECK(has(p.downstream, "XR_KHR_locate_spaces") && has(p.downstream, "XR_VARJO_quad_views"));
+    CHECK(!has(p.downstream, "XR_EXT_hand_interaction"));
+    CHECK(!has(p.downstream, "XR_EXT_local_floor"));
+    CHECK(std::count(p.downstream.begin(), p.downstream.end(), "XR_EXT_palm_pose") == 1);
+    available.push_back(stubs[0]);
+    CHECK(extensions(requested, available, true).stubbed == Names{stubs[1]});
+    CHECK(extensions({}, available, false).downstream.empty());
+    CHECK(rewritePath("/user/hand/left/input/grip_surface/pose", true) == "/user/hand/left/input/palm_ext/pose");
+    CHECK(rewritePath("/user/hand/right/input/grip_surface/pose", true) == "/user/hand/right/input/palm_ext/pose");
+    CHECK(rewritePath("/user/hand/left/input/grip_surface/pose", false) == "/user/hand/left/input/grip_surface/pose");
+    CHECK(rewritePath("/user/hand/left/input/grip_surface/pose/extra", true) == "/user/hand/left/input/grip_surface/pose/extra");
+    CHECK(rewritePath("/user/hand/left/input/grip/pose", true) == "/user/hand/left/input/grip/pose");
+    CHECK(dropProfile("/interaction_profiles/meta/touch_pro_controller", {}));
+    CHECK(dropProfile("/interaction_profiles/meta/touch_controller_quest_2", {}));
+    CHECK(dropProfile("/interaction_profiles/hp/mixed_reality_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/hp/mixed_reality_controller", {"XR_EXT_hp_mixed_reality_controller"}));
+    CHECK(!dropProfile("/interaction_profiles/oculus/touch_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/khr/simple_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/valve/frame_controller", {}));
+    CHECK(!dropProfile("/interaction_profiles/ext/hand_interaction_ext", {}));
+    CHECK(extensionType(XR_TYPE_SPACES_LOCATE_INFO) == XR_TYPE_SPACES_LOCATE_INFO_KHR);
+    CHECK(extensionType(XR_TYPE_SPACE_LOCATIONS) == XR_TYPE_SPACE_LOCATIONS_KHR);
+    CHECK(extensionType(XR_TYPE_SPACE_VELOCITIES) == XR_TYPE_SPACE_VELOCITIES_KHR);
+    CHECK(extensionType(XR_TYPE_INSTANCE_CREATE_INFO) == XR_TYPE_INSTANCE_CREATE_INFO);
+    static_assert(std::is_same_v<XrSpaceVelocities, XrSpaceVelocitiesKHR>);
+    XrSpace space{};
+    XrSpaceLocationData data{};
+    XrSpaceVelocityData velocity{};
+    XrSpaceVelocities velocities{XR_TYPE_SPACE_VELOCITIES, sentinel, 1, &velocity};
+    XrSpaceLocations locations{XR_TYPE_SPACE_LOCATIONS, &velocities, 1, &data};
+    XrSpacesLocateInfo info{XR_TYPE_SPACES_LOCATE_INFO, sentinel, XR_NULL_HANDLE, 123, 1, &space};
+    CHECK(locate(fakeLocate, XR_NULL_HANDLE, &info, &locations) == XR_SUCCESS);
+    CHECK(data.pose.position.x == 42 && velocity.linearVelocity.y == 7);
+    CHECK(info.next == sentinel && locations.next == &velocities && velocities.next == sentinel);
+    CHECK(info.type == XR_TYPE_SPACES_LOCATE_INFO && locations.type == XR_TYPE_SPACE_LOCATIONS && velocities.type == XR_TYPE_SPACE_VELOCITIES);
+    CHECK(locate(fakeLocate, XR_NULL_HANDLE, nullptr, &locations) == XR_ERROR_VALIDATION_FAILURE);
+    std::cout << "All version, extension, path/profile and locate-chain checks passed\n";
+}
@@ -0,0 +1,134 @@
+// Compile the actual layer with host-only JNI/logging shims, and a fake next
+// layer. This exercises ABI routing without a runtime or a headset.
+#include "../layer.cpp"
+#include <cstdlib>
+#include <iostream>
+#define CHECK(expr) do { if (!(expr)) { std::cerr << __LINE__ << ": " #expr "\n"; std::exit(1); } } while (false)
+namespace {
+uintptr_t serial = 100;
+frame::Names seenExtensions;
+XrVersion seenVersion{};
+XrApiLayerNextInfo* seenNext{};
+int suggestionCalls{}, locateCalls{}, realThreadCalls{};
+bool nativeThread{};
+std::unordered_map<XrPath, std::string> paths;
+XrResult XRAPI_CALL fakeEnumerate(const char*, uint32_t capacity, uint32_t* count, XrExtensionProperties* out) {
+    const char* extensions[] = {"XR_KHR_locate_spaces", "XR_EXT_palm_pose", frame::stubs[0]};
+    *count = nativeThread ? 3 : 2;
+    if (!capacity) return XR_SUCCESS;
+    if (capacity < *count) return XR_ERROR_SIZE_INSUFFICIENT;
+    for (uint32_t j = 0; j < *count; ++j) { std::strcpy(out[j].extensionName, extensions[j]); out[j].extensionVersion = 1; }
+    return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeCreate(const XrInstanceCreateInfo* in, const XrApiLayerCreateInfo* layer, XrInstance* i) {
+    seenVersion = in->applicationInfo.apiVersion; seenNext = layer->nextInfo;
+    seenExtensions.clear();
+    for (uint32_t j = 0; j < in->enabledExtensionCount; ++j) seenExtensions.emplace_back(in->enabledExtensionNames[j]);
+    if (frame::has(seenExtensions, "XR_MISSING_test")) return XR_ERROR_EXTENSION_NOT_PRESENT;
+    *i = reinterpret_cast<XrInstance>(++serial); return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeDestroy(XrInstance) { return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeCreateSession(XrInstance, const XrSessionCreateInfo*, XrSession* s) {
+    *s = reinterpret_cast<XrSession>(++serial); return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeDestroySession(XrSession) { return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeString(XrInstance, const char* text, XrPath* p) {
+    *p = ++serial; paths[*p] = text; return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakePath(XrInstance, XrPath p, uint32_t cap, uint32_t* count, char* out) {
+    if (!paths.count(p)) return XR_ERROR_PATH_INVALID;
+    *count = static_cast<uint32_t>(paths[p].size() + 1);
+    if (!cap) return XR_SUCCESS;
+    if (cap < *count) return XR_ERROR_SIZE_INSUFFICIENT;
+    std::strcpy(out, paths[p].c_str()); return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeSuggest(XrInstance, const XrInteractionProfileSuggestedBinding* info) {
+    ++suggestionCalls;
+    if (info->countSuggestedBindings) CHECK(paths[info->suggestedBindings[0].binding] == "/user/hand/left/input/palm_ext/pose");
+    return XR_SUCCESS;
+}
+XrResult XRAPI_CALL fakeLocate(XrSession, const XrSpacesLocateInfo*, XrSpaceLocations*) { ++locateCalls; return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeThread(XrSession, XrAndroidThreadTypeKHR, uint32_t) { ++realThreadCalls; return XR_TIMEOUT_EXPIRED; }
+XrResult XRAPI_CALL fakeProperties(XrInstance, XrInstanceProperties*) { return XR_SUCCESS; }
+XrResult XRAPI_CALL fakeGipa(XrInstance, const char* n, PFN_xrVoidFunction* out) {
+#define MAP(name, f) if (!std::strcmp(n, name)) { *out = reinterpret_cast<PFN_xrVoidFunction>(f); return XR_SUCCESS; }
+    MAP("xrEnumerateInstanceExtensionProperties", fakeEnumerate)
+    MAP("xrDestroyInstance", fakeDestroy)
+    MAP("xrCreateSession", fakeCreateSession) MAP("xrDestroySession", fakeDestroySession)
+    MAP("xrStringToPath", fakeString) MAP("xrPathToString", fakePath)
+    MAP("xrSuggestInteractionProfileBindings", fakeSuggest) MAP("xrLocateSpacesKHR", fakeLocate)
+    MAP("xrSetAndroidApplicationThreadKHR", fakeThread) MAP("xrGetInstanceProperties", fakeProperties)
+#undef MAP
+    *out = nullptr; return XR_ERROR_FUNCTION_UNSUPPORTED;
+}
+}
+int main() {
+    XrNegotiateLoaderInfo loader{XR_LOADER_INTERFACE_STRUCT_LOADER_INFO, 1, sizeof(XrNegotiateLoaderInfo), 1, 1,
+                                XR_MAKE_VERSION(1,0,0), XR_MAKE_VERSION(1,1023,4095)};
+    XrNegotiateApiLayerRequest request{};
+    request.structType = XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST; request.structVersion = 1; request.structSize = sizeof(request);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, frame::layerName, &request) == XR_SUCCESS);
+    CHECK(request.getInstanceProcAddr && request.createApiLayerInstance);
+    loader.maxApiVersion = XR_MAKE_VERSION(1,1,0);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, frame::layerName, &request) == XR_SUCCESS);
+    CHECK(request.layerApiVersion == loader.maxApiVersion);
+    loader.maxApiVersion = XR_MAKE_VERSION(1,0,99);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, frame::layerName, &request) == XR_ERROR_INITIALIZATION_FAILED);
+    loader.maxApiVersion = XR_MAKE_VERSION(1,1023,4095);
+    CHECK(xrNegotiateLoaderApiLayerInterface(&loader, "wrong", &request) == XR_ERROR_INITIALIZATION_FAILED);
+    XrApiLayerNextInfo tail{};
+    XrApiLayerNextInfo next{XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO, 1, sizeof(XrApiLayerNextInfo), {}, fakeGipa, fakeCreate, &tail};
+    XrApiLayerCreateInfo layer{XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO, 1, sizeof(XrApiLayerCreateInfo), nullptr, {}, &next};
+    XrInstanceCreateInfo info{XR_TYPE_INSTANCE_CREATE_INFO, nullptr, 0, {}, 0, nullptr, 2, frame::stubs};
+    info.applicationInfo.apiVersion = XR_MAKE_VERSION(1,1,999);
+    XrInstance a{}, b{};
+    CHECK(createLayer(&info, &layer, &a) == XR_SUCCESS);
+    CHECK(seenVersion == XR_API_VERSION_1_0 && info.applicationInfo.apiVersion == XR_MAKE_VERSION(1,1,999));
+    CHECK(seenNext == &tail && layer.nextInfo == &next);
+    CHECK(!frame::has(seenExtensions, frame::stubs[0]) && frame::has(seenExtensions, "XR_KHR_locate_spaces"));
+    XrSession sa{}, sb{};
+    CHECK(createSession(a, nullptr, &sa) == XR_SUCCESS);
+    CHECK(threadSettings(sa, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_SUCCESS);
+    nativeThread = true;
+    CHECK(createLayer(&info, &layer, &b) == XR_SUCCESS);
+    CHECK(frame::has(seenExtensions, frame::stubs[0]));
+    CHECK(createSession(b, nullptr, &sb) == XR_SUCCESS);
+    PFN_xrVoidFunction fn{};
+    CHECK(gipa(b, "xrSetAndroidApplicationThreadKHR", &fn) == XR_SUCCESS);
+    CHECK(reinterpret_cast<PFN_xrSetAndroidApplicationThreadKHR>(fn)(sb, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_TIMEOUT_EXPIRED);
+    CHECK(realThreadCalls == 1);
+    CHECK(threadSettings(sa, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_SUCCESS);
+    CHECK(gipa(a, "xrGetInstanceProperties", &fn) == XR_SUCCESS && fn == reinterpret_cast<PFN_xrVoidFunction>(fakeProperties));
+    CHECK(gipa(a, "xrLocateSpaces", &fn) == XR_SUCCESS);
+    XrSpacesLocateInfo locateInfo{XR_TYPE_SPACES_LOCATE_INFO, nullptr, XR_NULL_HANDLE, 1, 0, nullptr};
+    XrSpaceLocations locations{XR_TYPE_SPACE_LOCATIONS, nullptr, 0, nullptr};
+    CHECK(reinterpret_cast<PFN_xrLocateSpaces>(fn)(sa, &locateInfo, &locations) == XR_SUCCESS && locateCalls == 1);
+    XrPath binding{}, profile{};
+    CHECK(stringToPath(a, "/user/hand/left/input/grip_surface/pose", &binding) == XR_SUCCESS);
+    CHECK(paths[binding] == "/user/hand/left/input/palm_ext/pose");
+    fakeString(a, "/user/hand/left/input/grip_surface/pose", &binding); // preexisting path: rewrite in suggest too
+    fakeString(a, "/interaction_profiles/oculus/touch_controller", &profile);
+    XrActionSuggestedBinding action{XR_NULL_HANDLE, binding};
+    XrInteractionProfileSuggestedBinding suggested{XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING, nullptr, profile, 1, &action};
+    CHECK(suggest(a, &suggested) == XR_SUCCESS && suggestionCalls == 1);
+    CHECK(paths[action.binding] == "/user/hand/left/input/grip_surface/pose");
+    fakeString(a, "/interaction_profiles/meta/touch_pro_controller", &suggested.interactionProfile);
+    CHECK(suggest(a, &suggested) == XR_SUCCESS && suggestionCalls == 1);
+    uint32_t count{};
+    CHECK(enumerate(frame::layerName, 0, &count, nullptr) == XR_SUCCESS && count == 2);
+    XrExtensionProperties props[2]{{XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, 0}, {XR_TYPE_EXTENSION_PROPERTIES, nullptr, {}, 0}};
+    CHECK(enumerate(frame::layerName, 1, &count, props) == XR_ERROR_SIZE_INSUFFICIENT);
+    CHECK(enumerate(frame::layerName, 2, &count, props) == XR_SUCCESS && count == 2);
+    CHECK(enumerate(nullptr, 0, &count, nullptr) == XR_SUCCESS && count == 4);
+    const char* missing = "XR_MISSING_test";
+    info.enabledExtensionCount = 1; info.enabledExtensionNames = &missing;
+    XrInstance failed{};
+    CHECK(createLayer(&info, &layer, &failed) == XR_ERROR_EXTENSION_NOT_PRESENT && failed == XR_NULL_HANDLE);
+    CHECK(destroySession(sa) == XR_SUCCESS);
+    CHECK(threadSettings(sa, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, 1) == XR_ERROR_HANDLE_INVALID);
+    CHECK(destroyInstance(a) == XR_SUCCESS);
+    CHECK(get(sb) && !get(a));
+    CHECK(destroyInstance(b) == XR_SUCCESS && !get(sb));
+    CHECK(instances.empty() && sessions.empty() && enumerateNext == nullptr);
+    std::cout << "Negotiation, next-layer chaining, multi-instance dispatch, stubs, forwarding and cleanup passed\n";
+}
@@ -0,0 +1,9 @@
+#pragma once
+// Host-only logcat replacement. Android builds use the NDK header and liblog.
+#include <cstdarg>
+#include <cstdio>
+#define ANDROID_LOG_INFO 4
+inline int __android_log_print(int, const char*, const char* fmt, ...) {
+    va_list args; va_start(args, fmt); auto r = std::vfprintf(stderr, fmt, args);
+    va_end(args); std::fputc('\n', stderr); return r;
+}
@@ -0,0 +1,3 @@
+#pragma once
+// Only the opaque jobject declaration is needed by openxr_platform.h.
+typedef void* jobject;
@@ -0,0 +1,208 @@
+Apache License
+
+Version 2.0, January 2004
+
+http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION,
+AND DISTRIBUTION
+
+   1. Definitions.
+
+
+
+"License" shall mean the terms and conditions for use, reproduction, and distribution
+as defined by Sections 1 through 9 of this document.
+
+
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct
+or indirect, to cause the direction or management of such entity, whether
+by contract or otherwise, or (ii) ownership of fifty percent (50%) or more
+of the outstanding shares, or (iii) beneficial ownership of such entity.
+
+
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising permissions
+granted by this License.
+
+
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+
+
+"Object" form shall mean any form resulting from mechanical transformation
+or translation of a Source form, including but not limited to compiled object
+code, generated documentation, and conversions to other media types.
+
+
+
+"Work" shall mean the work of authorship, whether in Source or Object form,
+made available under the License, as indicated by a copyright notice that
+is included in or attached to the work (an example is provided in the Appendix
+below).
+
+
+
+"Derivative Works" shall mean any work, whether in Source or Object form,
+that is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative
+Works shall not include works that remain separable from, or merely link (or
+bind by name) to the interfaces of, the Work and Derivative Works thereof.
+
+
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative
+Works thereof, that is intentionally submitted to Licensor for inclusion in
+the Work by the copyright owner or by an individual or Legal Entity authorized
+to submit on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication
+sent to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor
+for the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently incorporated
+within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of this
+License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable copyright license to reproduce, prepare
+Derivative Works of, publicly display, publicly perform, sublicense, and distribute
+the Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of this License,
+each Contributor hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section) patent
+license to make, have made, use, offer to sell, sell, import, and otherwise
+transfer the Work, where such license applies only to those patent claims
+licensable by such Contributor that are necessarily infringed by their Contribution(s)
+alone or by combination of their Contribution(s) with the Work to which such
+Contribution(s) was submitted. If You institute patent litigation against
+any entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that the Work or a Contribution incorporated within the Work constitutes direct
+or contributory patent infringement, then any patent licenses granted to You
+under this License for that Work shall terminate as of the date such litigation
+is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the Work or
+Derivative Works thereof in any medium, with or without modifications, and
+in Source or Object form, provided that You meet the following conditions:
+
+(a) You must give any other recipients of the Work or Derivative Works a copy
+of this License; and
+
+(b) You must cause any modified files to carry prominent notices stating that
+You changed the files; and
+
+(c) You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source
+form of the Work, excluding those notices that do not pertain to any part
+of the Derivative Works; and
+
+(d) If the Work includes a "NOTICE" text file as part of its distribution,
+then any Derivative Works that You distribute must include a readable copy
+of the attribution notices contained within such NOTICE file, excluding those
+notices that do not pertain to any part of the Derivative Works, in at least
+one of the following places: within a NOTICE text file distributed as part
+of the Derivative Works; within the Source form or documentation, if provided
+along with the Derivative Works; or, within a display generated by the Derivative
+Works, if and wherever such third-party notices normally appear. The contents
+of the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works
+that You distribute, alongside or as an addendum to the NOTICE text from the
+Work, provided that such additional attribution notices cannot be construed
+as modifying the License.
+
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction,
+or distribution of Your modifications, or for any such Derivative Works as
+a whole, provided Your use, reproduction, and distribution of the Work otherwise
+complies with the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise, any
+Contribution intentionally submitted for inclusion in the Work by You to the
+Licensor shall be under the terms and conditions of this License, without
+any additional terms or conditions. Notwithstanding the above, nothing herein
+shall supersede or modify the terms of any separate license agreement you
+may have executed with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade names,
+trademarks, service marks, or product names of the Licensor, except as required
+for reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or agreed to
+in writing, Licensor provides the Work (and each Contributor provides its
+Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied, including, without limitation, any warranties
+or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR
+A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness
+of using or redistributing the Work and assume any risks associated with Your
+exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory, whether
+in tort (including negligence), contract, or otherwise, unless required by
+applicable law (such as deliberate and grossly negligent acts) or agreed to
+in writing, shall any Contributor be liable to You for damages, including
+any direct, indirect, special, incidental, or consequential damages of any
+character arising as a result of this License or out of the use or inability
+to use the Work (including but not limited to damages for loss of goodwill,
+work stoppage, computer failure or malfunction, or any and all other commercial
+damages or losses), even if such Contributor has been advised of the possibility
+of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing the Work
+or Derivative Works thereof, You may choose to offer, and charge a fee for,
+acceptance of support, warranty, indemnity, or other liability obligations
+and/or rights consistent with this License. However, in accepting such obligations,
+You may act only on Your own behalf and on Your sole responsibility, not on
+behalf of any other Contributor, and only if You agree to indemnify, defend,
+and hold each Contributor harmless for any liability incurred by, or claims
+asserted against, such Contributor by reason of your accepting any such warranty
+or additional liability. END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own identifying
+information. (Don't include the brackets!) The text should be enclosed in
+the appropriate comment syntax for the file format. We also recommend that
+a file or class name and description of purpose be included on the same "printed
+page" as the copyright notice for easier identification within third-party
+archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+
+you may not use this file except in compliance with the License.
+
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+
+distributed under the License is distributed on an "AS IS" BASIS,
+
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+See the License for the specific language governing permissions and
+
+limitations under the License.
@@ -0,0 +1,114 @@
+// Copyright (c) 2017-2023, The Khronos Group Inc.
+// Copyright (c) 2017 Valve Corporation
+// Copyright (c) 2017 LunarG, Inc.
+//
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+//
+// Initial Author: Mark Young <marky@lunarg.com>
+//
+
+#pragma once
+
+#include <openxr/openxr.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Forward declare.
+typedef struct XrApiLayerCreateInfo XrApiLayerCreateInfo;
+
+// Function pointer prototype for the xrCreateApiLayerInstance function used in place of xrCreateInstance.
+// This function allows us to pass special API layer information to each layer during the process of creating an Instance.
+typedef XrResult(XRAPI_PTR *PFN_xrCreateApiLayerInstance)(const XrInstanceCreateInfo *info,
+                                                          const XrApiLayerCreateInfo *apiLayerInfo, XrInstance *instance);
+
+// Loader/API Layer Interface versions
+//  1 - First version, introduces negotiation structure and functions
+#define XR_CURRENT_LOADER_API_LAYER_VERSION 1
+
+// Loader/Runtime Interface versions
+//  1 - First version, introduces negotiation structure and functions
+#define XR_CURRENT_LOADER_RUNTIME_VERSION 1
+
+// Version negotiation values
+typedef enum XrLoaderInterfaceStructs {
+    XR_LOADER_INTERFACE_STRUCT_UNINTIALIZED = 0,
+    XR_LOADER_INTERFACE_STRUCT_LOADER_INFO,
+    XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST,
+    XR_LOADER_INTERFACE_STRUCT_RUNTIME_REQUEST,
+    XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO,
+    XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO,
+} XrLoaderInterfaceStructs;
+
+#define XR_LOADER_INFO_STRUCT_VERSION 1
+typedef struct XrNegotiateLoaderInfo {
+    XrLoaderInterfaceStructs structType;  // XR_LOADER_INTERFACE_STRUCT_LOADER_INFO
+    uint32_t structVersion;               // XR_LOADER_INFO_STRUCT_VERSION
+    size_t structSize;                    // sizeof(XrNegotiateLoaderInfo)
+    uint32_t minInterfaceVersion;
+    uint32_t maxInterfaceVersion;
+    XrVersion minApiVersion;
+    XrVersion maxApiVersion;
+} XrNegotiateLoaderInfo;
+
+#define XR_API_LAYER_INFO_STRUCT_VERSION 1
+typedef struct XrNegotiateApiLayerRequest {
+    XrLoaderInterfaceStructs structType;  // XR_LOADER_INTERFACE_STRUCT_API_LAYER_REQUEST
+    uint32_t structVersion;               // XR_API_LAYER_INFO_STRUCT_VERSION
+    size_t structSize;                    // sizeof(XrNegotiateApiLayerRequest)
+    uint32_t layerInterfaceVersion;       // CURRENT_LOADER_API_LAYER_VERSION
+    XrVersion layerApiVersion;
+    PFN_xrGetInstanceProcAddr getInstanceProcAddr;
+    PFN_xrCreateApiLayerInstance createApiLayerInstance;
+} XrNegotiateApiLayerRequest;
+
+#define XR_RUNTIME_INFO_STRUCT_VERSION 1
+typedef struct XrNegotiateRuntimeRequest {
+    XrLoaderInterfaceStructs structType;  // XR_LOADER_INTERFACE_STRUCT_RUNTIME_REQUEST
+    uint32_t structVersion;               // XR_RUNTIME_INFO_STRUCT_VERSION
+    size_t structSize;                    // sizeof(XrNegotiateRuntimeRequest)
+    uint32_t runtimeInterfaceVersion;     // CURRENT_LOADER_RUNTIME_VERSION
+    XrVersion runtimeApiVersion;
+    PFN_xrGetInstanceProcAddr getInstanceProcAddr;
+} XrNegotiateRuntimeRequest;
+
+// Function used to negotiate an interface betewen the loader and an API layer.  Each library exposing one or
+// more API layers needs to expose at least this function.
+typedef XrResult(XRAPI_PTR *PFN_xrNegotiateLoaderApiLayerInterface)(const XrNegotiateLoaderInfo *loaderInfo,
+                                                                    const char *apiLayerName,
+                                                                    XrNegotiateApiLayerRequest *apiLayerRequest);
+
+// Function used to negotiate an interface betewen the loader and a runtime.  Each runtime should expose
+// at least this function.
+typedef XrResult(XRAPI_PTR *PFN_xrNegotiateLoaderRuntimeInterface)(const XrNegotiateLoaderInfo *loaderInfo,
+                                                                   XrNegotiateRuntimeRequest *runtimeRequest);
+
+// Forward declare.
+typedef struct XrApiLayerNextInfo XrApiLayerNextInfo;
+
+#define XR_API_LAYER_NEXT_INFO_STRUCT_VERSION 1
+struct XrApiLayerNextInfo {
+    XrLoaderInterfaceStructs structType;                      // XR_LOADER_INTERFACE_STRUCT_API_LAYER_NEXT_INFO
+    uint32_t structVersion;                                   // XR_API_LAYER_NEXT_INFO_STRUCT_VERSION
+    size_t structSize;                                        // sizeof(XrApiLayerNextInfo)
+    char layerName[XR_MAX_API_LAYER_NAME_SIZE];               // Name of API layer which should receive this info
+    PFN_xrGetInstanceProcAddr nextGetInstanceProcAddr;        // Pointer to next API layer's xrGetInstanceProcAddr
+    PFN_xrCreateApiLayerInstance nextCreateApiLayerInstance;  // Pointer to next API layer's xrCreateApiLayerInstance
+    XrApiLayerNextInfo *next;                                 // Pointer to the next API layer info in the sequence
+};
+
+#define XR_API_LAYER_MAX_SETTINGS_PATH_SIZE 512
+#define XR_API_LAYER_CREATE_INFO_STRUCT_VERSION 1
+typedef struct XrApiLayerCreateInfo {
+    XrLoaderInterfaceStructs structType;                               // XR_LOADER_INTERFACE_STRUCT_API_LAYER_CREATE_INFO
+    uint32_t structVersion;                                            // XR_API_LAYER_CREATE_INFO_STRUCT_VERSION
+    size_t structSize;                                                 // sizeof(XrApiLayerCreateInfo)
+    void *loaderInstance;                                              // Pointer to the LoaderInstance class
+    char settings_file_location[XR_API_LAYER_MAX_SETTINGS_PATH_SIZE];  // Location to the found settings file (or empty '\0')
+    XrApiLayerNextInfo *nextInfo;                                      // Pointer to the next API layer's Info
+} XrApiLayerCreateInfo;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
@@ -0,0 +1,819 @@
+#ifndef OPENXR_PLATFORM_H_
+#define OPENXR_PLATFORM_H_ 1
+
+/*
+** Copyright 2017-2026 The Khronos Group Inc.
+**
+** SPDX-License-Identifier: Apache-2.0 OR MIT
+*/
+
+/*
+** This header is generated from the Khronos OpenXR XML API Registry.
+**
+*/
+
+#include "openxr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_android_thread_settings is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_android_thread_settings 1
+#define XR_KHR_android_thread_settings_SPEC_VERSION 6
+#define XR_KHR_ANDROID_THREAD_SETTINGS_EXTENSION_NAME "XR_KHR_android_thread_settings"
+
+typedef enum XrAndroidThreadTypeKHR {
+    XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR = 1,
+    XR_ANDROID_THREAD_TYPE_APPLICATION_WORKER_KHR = 2,
+    XR_ANDROID_THREAD_TYPE_RENDERER_MAIN_KHR = 3,
+    XR_ANDROID_THREAD_TYPE_RENDERER_WORKER_KHR = 4,
+    XR_ANDROID_THREAD_TYPE_MAX_ENUM_KHR = 0x7FFFFFFF
+} XrAndroidThreadTypeKHR;
+typedef XrResult (XRAPI_PTR *PFN_xrSetAndroidApplicationThreadKHR)(XrSession session, XrAndroidThreadTypeKHR threadType, uint32_t threadId);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrSetAndroidApplicationThreadKHR(
+    XrSession                                   session,
+    XrAndroidThreadTypeKHR                      threadType,
+    uint32_t                                    threadId);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_android_surface_swapchain is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_android_surface_swapchain 1
+#define XR_KHR_android_surface_swapchain_SPEC_VERSION 4
+#define XR_KHR_ANDROID_SURFACE_SWAPCHAIN_EXTENSION_NAME "XR_KHR_android_surface_swapchain"
+typedef XrResult (XRAPI_PTR *PFN_xrCreateSwapchainAndroidSurfaceKHR)(XrSession session, const XrSwapchainCreateInfo* info, XrSwapchain* swapchain, jobject* surface);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateSwapchainAndroidSurfaceKHR(
+    XrSession                                   session,
+    const XrSwapchainCreateInfo*                info,
+    XrSwapchain*                                swapchain,
+    jobject*                                    surface);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_android_create_instance is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_android_create_instance 1
+#define XR_KHR_android_create_instance_SPEC_VERSION 3
+#define XR_KHR_ANDROID_CREATE_INSTANCE_EXTENSION_NAME "XR_KHR_android_create_instance"
+// XrInstanceCreateInfoAndroidKHR extends XrInstanceCreateInfo
+typedef struct XrInstanceCreateInfoAndroidKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS          applicationVM;
+    void* XR_MAY_ALIAS          applicationActivity;
+} XrInstanceCreateInfoAndroidKHR;
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_KHR_vulkan_swapchain_format_list is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_vulkan_swapchain_format_list 1
+#define XR_KHR_vulkan_swapchain_format_list_SPEC_VERSION 5
+#define XR_KHR_VULKAN_SWAPCHAIN_FORMAT_LIST_EXTENSION_NAME "XR_KHR_vulkan_swapchain_format_list"
+// XrVulkanSwapchainFormatListCreateInfoKHR extends XrSwapchainCreateInfo
+typedef struct XrVulkanSwapchainFormatListCreateInfoKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    uint32_t                    viewFormatCount;
+    const VkFormat*             viewFormats;
+} XrVulkanSwapchainFormatListCreateInfoKHR;
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_GRAPHICS_API_OPENGL
+
+// XR_KHR_opengl_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_opengl_enable 1
+#define XR_KHR_opengl_enable_SPEC_VERSION 12
+#define XR_KHR_OPENGL_ENABLE_EXTENSION_NAME "XR_KHR_opengl_enable"
+#ifdef XR_USE_PLATFORM_WIN32
+// XrGraphicsBindingOpenGLWin32KHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLWin32KHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    HDC                         hDC;
+    HGLRC                       hGLRC;
+} XrGraphicsBindingOpenGLWin32KHR;
+#endif // XR_USE_PLATFORM_WIN32
+
+#ifdef XR_USE_PLATFORM_XLIB
+// XrGraphicsBindingOpenGLXlibKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLXlibKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    Display*                    xDisplay;
+    uint32_t                    visualid;
+    GLXFBConfig                 glxFBConfig;
+    GLXDrawable                 glxDrawable;
+    GLXContext                  glxContext;
+} XrGraphicsBindingOpenGLXlibKHR;
+#endif // XR_USE_PLATFORM_XLIB
+
+#ifdef XR_USE_PLATFORM_XCB
+// XrGraphicsBindingOpenGLXcbKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLXcbKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    xcb_connection_t*           connection;
+    uint32_t                    screenNumber;
+    xcb_glx_fbconfig_t          fbconfigid;
+    xcb_visualid_t              visualid;
+    xcb_glx_drawable_t          glxDrawable;
+    xcb_glx_context_t           glxContext;
+} XrGraphicsBindingOpenGLXcbKHR;
+#endif // XR_USE_PLATFORM_XCB
+
+#ifdef XR_USE_PLATFORM_WAYLAND
+// XrGraphicsBindingOpenGLWaylandKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLWaylandKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    struct wl_display*          display;
+} XrGraphicsBindingOpenGLWaylandKHR;
+#endif // XR_USE_PLATFORM_WAYLAND
+
+typedef struct XrSwapchainImageOpenGLKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    uint32_t              image;
+} XrSwapchainImageOpenGLKHR;
+
+typedef struct XrGraphicsRequirementsOpenGLKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrVersion             minApiVersionSupported;
+    XrVersion             maxApiVersionSupported;
+} XrGraphicsRequirementsOpenGLKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetOpenGLGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsOpenGLKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetOpenGLGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsOpenGLKHR*            graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_OPENGL */
+
+#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
+
+// XR_KHR_opengl_es_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_opengl_es_enable 1
+#define XR_KHR_opengl_es_enable_SPEC_VERSION 10
+#define XR_KHR_OPENGL_ES_ENABLE_EXTENSION_NAME "XR_KHR_opengl_es_enable"
+#ifdef XR_USE_PLATFORM_ANDROID
+// XrGraphicsBindingOpenGLESAndroidKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingOpenGLESAndroidKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    EGLDisplay                  display;
+    EGLConfig                   config;
+    EGLContext                  context;
+} XrGraphicsBindingOpenGLESAndroidKHR;
+#endif // XR_USE_PLATFORM_ANDROID
+
+typedef struct XrSwapchainImageOpenGLESKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    uint32_t              image;
+} XrSwapchainImageOpenGLESKHR;
+
+typedef struct XrGraphicsRequirementsOpenGLESKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrVersion             minApiVersionSupported;
+    XrVersion             maxApiVersionSupported;
+} XrGraphicsRequirementsOpenGLESKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetOpenGLESGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsOpenGLESKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetOpenGLESGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsOpenGLESKHR*          graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_OPENGL_ES */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_KHR_vulkan_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_vulkan_enable 1
+#define XR_KHR_vulkan_enable_SPEC_VERSION 10
+#define XR_KHR_VULKAN_ENABLE_EXTENSION_NAME "XR_KHR_vulkan_enable"
+// XrGraphicsBindingVulkanKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingVulkanKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    VkInstance                  instance;
+    VkPhysicalDevice            physicalDevice;
+    VkDevice                    device;
+    uint32_t                    queueFamilyIndex;
+    uint32_t                    queueIndex;
+} XrGraphicsBindingVulkanKHR;
+
+typedef struct XrSwapchainImageVulkanKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    VkImage               image;
+} XrSwapchainImageVulkanKHR;
+
+typedef struct XrGraphicsRequirementsVulkanKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrVersion             minApiVersionSupported;
+    XrVersion             maxApiVersionSupported;
+} XrGraphicsRequirementsVulkanKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanInstanceExtensionsKHR)(XrInstance instance, XrSystemId systemId, uint32_t bufferCapacityInput, uint32_t* bufferCountOutput, char* buffer);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanDeviceExtensionsKHR)(XrInstance instance, XrSystemId systemId, uint32_t bufferCapacityInput, uint32_t* bufferCountOutput, char* buffer);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsDeviceKHR)(XrInstance instance, XrSystemId systemId, VkInstance vkInstance, VkPhysicalDevice* vkPhysicalDevice);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanInstanceExtensionsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    uint32_t                                    bufferCapacityInput,
+    uint32_t*                                   bufferCountOutput,
+    char*                                       buffer);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanDeviceExtensionsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    uint32_t                                    bufferCapacityInput,
+    uint32_t*                                   bufferCountOutput,
+    char*                                       buffer);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsDeviceKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    VkInstance                                  vkInstance,
+    VkPhysicalDevice*                           vkPhysicalDevice);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsVulkanKHR*            graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_GRAPHICS_API_D3D11
+
+// XR_KHR_D3D11_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_D3D11_enable 1
+#define XR_KHR_D3D11_enable_SPEC_VERSION  11
+#define XR_KHR_D3D11_ENABLE_EXTENSION_NAME "XR_KHR_D3D11_enable"
+// XrGraphicsBindingD3D11KHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingD3D11KHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    ID3D11Device*               device;
+} XrGraphicsBindingD3D11KHR;
+
+typedef struct XrSwapchainImageD3D11KHR {
+     XrStructureType      type;
+    void* XR_MAY_ALIAS    next;
+    ID3D11Texture2D*      texture;
+} XrSwapchainImageD3D11KHR;
+
+typedef struct XrGraphicsRequirementsD3D11KHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    LUID                  adapterLuid;
+    D3D_FEATURE_LEVEL     minFeatureLevel;
+} XrGraphicsRequirementsD3D11KHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetD3D11GraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsD3D11KHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetD3D11GraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsD3D11KHR*             graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_D3D11 */
+
+#ifdef XR_USE_GRAPHICS_API_D3D12
+
+// XR_KHR_D3D12_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_D3D12_enable 1
+#define XR_KHR_D3D12_enable_SPEC_VERSION  11
+#define XR_KHR_D3D12_ENABLE_EXTENSION_NAME "XR_KHR_D3D12_enable"
+// XrGraphicsBindingD3D12KHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingD3D12KHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    ID3D12Device*               device;
+    ID3D12CommandQueue*         queue;
+} XrGraphicsBindingD3D12KHR;
+
+typedef struct XrSwapchainImageD3D12KHR {
+     XrStructureType      type;
+    void* XR_MAY_ALIAS    next;
+    ID3D12Resource*       texture;
+} XrSwapchainImageD3D12KHR;
+
+typedef struct XrGraphicsRequirementsD3D12KHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    LUID                  adapterLuid;
+    D3D_FEATURE_LEVEL     minFeatureLevel;
+} XrGraphicsRequirementsD3D12KHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetD3D12GraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsD3D12KHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetD3D12GraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsD3D12KHR*             graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_D3D12 */
+
+#ifdef XR_USE_GRAPHICS_API_METAL
+
+// XR_KHR_metal_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_metal_enable 1
+#define XR_KHR_metal_enable_SPEC_VERSION  3
+#define XR_KHR_METAL_ENABLE_EXTENSION_NAME "XR_KHR_metal_enable"
+// XrGraphicsBindingMetalKHR extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingMetalKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS          commandQueue;
+} XrGraphicsBindingMetalKHR;
+
+typedef struct XrSwapchainImageMetalKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS    texture;
+} XrSwapchainImageMetalKHR;
+
+typedef struct XrGraphicsRequirementsMetalKHR {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS    metalDevice;
+} XrGraphicsRequirementsMetalKHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrGetMetalGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsMetalKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetMetalGraphicsRequirementsKHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsMetalKHR*             graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_METAL */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_KHR_win32_convert_performance_counter_time is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_win32_convert_performance_counter_time 1
+#define XR_KHR_win32_convert_performance_counter_time_SPEC_VERSION 1
+#define XR_KHR_WIN32_CONVERT_PERFORMANCE_COUNTER_TIME_EXTENSION_NAME "XR_KHR_win32_convert_performance_counter_time"
+typedef XrResult (XRAPI_PTR *PFN_xrConvertWin32PerformanceCounterToTimeKHR)(XrInstance instance, const LARGE_INTEGER* performanceCounter, XrTime* time);
+typedef XrResult (XRAPI_PTR *PFN_xrConvertTimeToWin32PerformanceCounterKHR)(XrInstance instance, XrTime time, LARGE_INTEGER* performanceCounter);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertWin32PerformanceCounterToTimeKHR(
+    XrInstance                                  instance,
+    const LARGE_INTEGER*                        performanceCounter,
+    XrTime*                                     time);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimeToWin32PerformanceCounterKHR(
+    XrInstance                                  instance,
+    XrTime                                      time,
+    LARGE_INTEGER*                              performanceCounter);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_TIMESPEC
+
+// XR_KHR_convert_timespec_time is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_convert_timespec_time 1
+#define XR_KHR_convert_timespec_time_SPEC_VERSION 1
+#define XR_KHR_CONVERT_TIMESPEC_TIME_EXTENSION_NAME "XR_KHR_convert_timespec_time"
+typedef XrResult (XRAPI_PTR *PFN_xrConvertTimespecTimeToTimeKHR)(XrInstance instance, const struct timespec* timespecTime, XrTime* time);
+typedef XrResult (XRAPI_PTR *PFN_xrConvertTimeToTimespecTimeKHR)(XrInstance instance, XrTime time, struct timespec* timespecTime);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimespecTimeToTimeKHR(
+    XrInstance                                  instance,
+    const struct timespec*                      timespecTime,
+    XrTime*                                     time);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimeToTimespecTimeKHR(
+    XrInstance                                  instance,
+    XrTime                                      time,
+    struct timespec*                            timespecTime);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_TIMESPEC */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_KHR_loader_init_android is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_loader_init_android 1
+#define XR_KHR_loader_init_android_SPEC_VERSION 1
+#define XR_KHR_LOADER_INIT_ANDROID_EXTENSION_NAME "XR_KHR_loader_init_android"
+typedef struct XrLoaderInitInfoAndroidKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    void* XR_MAY_ALIAS          applicationVM;
+    void* XR_MAY_ALIAS          applicationContext;
+} XrLoaderInitInfoAndroidKHR;
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_KHR_vulkan_enable2 is a preprocessor guard. Do not pass it to API calls.
+#define XR_KHR_vulkan_enable2 1
+#define XR_KHR_vulkan_enable2_SPEC_VERSION 4
+#define XR_KHR_VULKAN_ENABLE2_EXTENSION_NAME "XR_KHR_vulkan_enable2"
+typedef XrFlags64 XrVulkanInstanceCreateFlagsKHR;
+
+// Flag bits for XrVulkanInstanceCreateFlagsKHR
+
+typedef XrFlags64 XrVulkanDeviceCreateFlagsKHR;
+
+// Flag bits for XrVulkanDeviceCreateFlagsKHR
+
+typedef struct XrVulkanInstanceCreateInfoKHR {
+    XrStructureType                   type;
+    const void* XR_MAY_ALIAS          next;
+    XrSystemId                        systemId;
+    XrVulkanInstanceCreateFlagsKHR    createFlags;
+    PFN_vkGetInstanceProcAddr         pfnGetInstanceProcAddr;
+    const VkInstanceCreateInfo*       vulkanCreateInfo;
+    const VkAllocationCallbacks*      vulkanAllocator;
+} XrVulkanInstanceCreateInfoKHR;
+
+typedef struct XrVulkanDeviceCreateInfoKHR {
+    XrStructureType                 type;
+    const void* XR_MAY_ALIAS        next;
+    XrSystemId                      systemId;
+    XrVulkanDeviceCreateFlagsKHR    createFlags;
+    PFN_vkGetInstanceProcAddr       pfnGetInstanceProcAddr;
+    VkPhysicalDevice                vulkanPhysicalDevice;
+    const VkDeviceCreateInfo*       vulkanCreateInfo;
+    const VkAllocationCallbacks*    vulkanAllocator;
+} XrVulkanDeviceCreateInfoKHR;
+
+typedef XrGraphicsBindingVulkanKHR XrGraphicsBindingVulkan2KHR;
+
+typedef struct XrVulkanGraphicsDeviceGetInfoKHR {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    XrSystemId                  systemId;
+    VkInstance                  vulkanInstance;
+} XrVulkanGraphicsDeviceGetInfoKHR;
+
+typedef XrSwapchainImageVulkanKHR XrSwapchainImageVulkan2KHR;
+
+typedef XrGraphicsRequirementsVulkanKHR XrGraphicsRequirementsVulkan2KHR;
+
+typedef XrResult (XRAPI_PTR *PFN_xrCreateVulkanInstanceKHR)(XrInstance instance, const XrVulkanInstanceCreateInfoKHR* createInfo, VkInstance* vulkanInstance, VkResult* vulkanResult);
+typedef XrResult (XRAPI_PTR *PFN_xrCreateVulkanDeviceKHR)(XrInstance instance, const XrVulkanDeviceCreateInfoKHR* createInfo, VkDevice* vulkanDevice, VkResult* vulkanResult);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsDevice2KHR)(XrInstance instance, const XrVulkanGraphicsDeviceGetInfoKHR* getInfo, VkPhysicalDevice* vulkanPhysicalDevice);
+typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsRequirements2KHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateVulkanInstanceKHR(
+    XrInstance                                  instance,
+    const XrVulkanInstanceCreateInfoKHR*        createInfo,
+    VkInstance*                                 vulkanInstance,
+    VkResult*                                   vulkanResult);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateVulkanDeviceKHR(
+    XrInstance                                  instance,
+    const XrVulkanDeviceCreateInfoKHR*          createInfo,
+    VkDevice*                                   vulkanDevice,
+    VkResult*                                   vulkanResult);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsDevice2KHR(
+    XrInstance                                  instance,
+    const XrVulkanGraphicsDeviceGetInfoKHR*     getInfo,
+    VkPhysicalDevice*                           vulkanPhysicalDevice);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsRequirements2KHR(
+    XrInstance                                  instance,
+    XrSystemId                                  systemId,
+    XrGraphicsRequirementsVulkanKHR*            graphicsRequirements);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_PLATFORM_EGL
+
+// XR_MNDX_egl_enable is a preprocessor guard. Do not pass it to API calls.
+#define XR_MNDX_egl_enable 1
+#define XR_MNDX_egl_enable_SPEC_VERSION   2
+#define XR_MNDX_EGL_ENABLE_EXTENSION_NAME "XR_MNDX_egl_enable"
+typedef PFN_xrVoidFunction (*PFN_xrEglGetProcAddressMNDX)(const char *name);
+// XrGraphicsBindingEGLMNDX extends XrSessionCreateInfo
+typedef struct XrGraphicsBindingEGLMNDX {
+    XrStructureType                type;
+    const void* XR_MAY_ALIAS       next;
+    PFN_xrEglGetProcAddressMNDX    getProcAddress;
+    EGLDisplay                     display;
+    EGLConfig                      config;
+    EGLContext                     context;
+} XrGraphicsBindingEGLMNDX;
+
+#endif /* XR_USE_PLATFORM_EGL */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_MSFT_perception_anchor_interop is a preprocessor guard. Do not pass it to API calls.
+#define XR_MSFT_perception_anchor_interop 1
+#define XR_MSFT_perception_anchor_interop_SPEC_VERSION 1
+#define XR_MSFT_PERCEPTION_ANCHOR_INTEROP_EXTENSION_NAME "XR_MSFT_perception_anchor_interop"
+typedef XrResult (XRAPI_PTR *PFN_xrCreateSpatialAnchorFromPerceptionAnchorMSFT)(XrSession session, IUnknown* perceptionAnchor, XrSpatialAnchorMSFT* anchor);
+typedef XrResult (XRAPI_PTR *PFN_xrTryGetPerceptionAnchorFromSpatialAnchorMSFT)(XrSession session, XrSpatialAnchorMSFT anchor, IUnknown** perceptionAnchor);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateSpatialAnchorFromPerceptionAnchorMSFT(
+    XrSession                                   session,
+    IUnknown*                                   perceptionAnchor,
+    XrSpatialAnchorMSFT*                        anchor);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrTryGetPerceptionAnchorFromSpatialAnchorMSFT(
+    XrSession                                   session,
+    XrSpatialAnchorMSFT                         anchor,
+    IUnknown**                                  perceptionAnchor);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_MSFT_holographic_window_attachment is a preprocessor guard. Do not pass it to API calls.
+#define XR_MSFT_holographic_window_attachment 1
+#define XR_MSFT_holographic_window_attachment_SPEC_VERSION 1
+#define XR_MSFT_HOLOGRAPHIC_WINDOW_ATTACHMENT_EXTENSION_NAME "XR_MSFT_holographic_window_attachment"
+#ifdef XR_USE_PLATFORM_WIN32
+// XrHolographicWindowAttachmentMSFT extends XrSessionCreateInfo
+typedef struct XrHolographicWindowAttachmentMSFT {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    IUnknown*                   holographicSpace;
+    IUnknown*                   coreWindow;
+} XrHolographicWindowAttachmentMSFT;
+#endif // XR_USE_PLATFORM_WIN32
+
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_FB_android_surface_swapchain_create is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_android_surface_swapchain_create 1
+#define XR_FB_android_surface_swapchain_create_SPEC_VERSION 1
+#define XR_FB_ANDROID_SURFACE_SWAPCHAIN_CREATE_EXTENSION_NAME "XR_FB_android_surface_swapchain_create"
+typedef XrFlags64 XrAndroidSurfaceSwapchainFlagsFB;
+
+// Flag bits for XrAndroidSurfaceSwapchainFlagsFB
+static const XrAndroidSurfaceSwapchainFlagsFB XR_ANDROID_SURFACE_SWAPCHAIN_SYNCHRONOUS_BIT_FB = 0x00000001;
+static const XrAndroidSurfaceSwapchainFlagsFB XR_ANDROID_SURFACE_SWAPCHAIN_USE_TIMESTAMPS_BIT_FB = 0x00000002;
+
+#ifdef XR_USE_PLATFORM_ANDROID
+// XrAndroidSurfaceSwapchainCreateInfoFB extends XrSwapchainCreateInfo
+typedef struct XrAndroidSurfaceSwapchainCreateInfoFB {
+    XrStructureType                     type;
+    const void* XR_MAY_ALIAS            next;
+    XrAndroidSurfaceSwapchainFlagsFB    createFlags;
+} XrAndroidSurfaceSwapchainCreateInfoFB;
+#endif // XR_USE_PLATFORM_ANDROID
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_PLATFORM_ML
+
+// XR_ML_compat is a preprocessor guard. Do not pass it to API calls.
+#define XR_ML_compat 1
+#define XR_ML_compat_SPEC_VERSION         1
+#define XR_ML_COMPAT_EXTENSION_NAME       "XR_ML_compat"
+typedef struct XrCoordinateSpaceCreateInfoML {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    MLCoordinateFrameUID        cfuid;
+    XrPosef                     poseInCoordinateSpace;
+} XrCoordinateSpaceCreateInfoML;
+
+typedef XrResult (XRAPI_PTR *PFN_xrCreateSpaceFromCoordinateFrameUIDML)(XrSession session, const XrCoordinateSpaceCreateInfoML *createInfo, XrSpace* space);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrCreateSpaceFromCoordinateFrameUIDML(
+    XrSession                                   session,
+    const XrCoordinateSpaceCreateInfoML *       createInfo,
+    XrSpace*                                    space);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ML */
+
+#ifdef XR_USE_PLATFORM_WIN32
+
+// XR_OCULUS_audio_device_guid is a preprocessor guard. Do not pass it to API calls.
+#define XR_OCULUS_audio_device_guid 1
+#define XR_OCULUS_audio_device_guid_SPEC_VERSION 1
+#define XR_OCULUS_AUDIO_DEVICE_GUID_EXTENSION_NAME "XR_OCULUS_audio_device_guid"
+#define XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS 128
+typedef XrResult (XRAPI_PTR *PFN_xrGetAudioOutputDeviceGuidOculus)(XrInstance instance, wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+typedef XrResult (XRAPI_PTR *PFN_xrGetAudioInputDeviceGuidOculus)(XrInstance instance, wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrGetAudioOutputDeviceGuidOculus(
+    XrInstance                                  instance,
+    wchar_t                                     buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrGetAudioInputDeviceGuidOculus(
+    XrInstance                                  instance,
+    wchar_t                                     buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_WIN32 */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_FB_foveation_vulkan is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_foveation_vulkan 1
+#define XR_FB_foveation_vulkan_SPEC_VERSION 1
+#define XR_FB_FOVEATION_VULKAN_EXTENSION_NAME "XR_FB_foveation_vulkan"
+// XrSwapchainImageFoveationVulkanFB extends XrSwapchainImageVulkanKHR
+typedef struct XrSwapchainImageFoveationVulkanFB {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    VkImage               image;
+    uint32_t              width;
+    uint32_t              height;
+} XrSwapchainImageFoveationVulkanFB;
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_FB_swapchain_update_state_android_surface is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_swapchain_update_state_android_surface 1
+#define XR_FB_swapchain_update_state_android_surface_SPEC_VERSION 1
+#define XR_FB_SWAPCHAIN_UPDATE_STATE_ANDROID_SURFACE_EXTENSION_NAME "XR_FB_swapchain_update_state_android_surface"
+#ifdef XR_USE_PLATFORM_ANDROID
+typedef struct XrSwapchainStateAndroidSurfaceDimensionsFB {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    uint32_t              width;
+    uint32_t              height;
+} XrSwapchainStateAndroidSurfaceDimensionsFB;
+#endif // XR_USE_PLATFORM_ANDROID
+
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
+
+// XR_FB_swapchain_update_state_opengl_es is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_swapchain_update_state_opengl_es 1
+#define XR_FB_swapchain_update_state_opengl_es_SPEC_VERSION 1
+#define XR_FB_SWAPCHAIN_UPDATE_STATE_OPENGL_ES_EXTENSION_NAME "XR_FB_swapchain_update_state_opengl_es"
+#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
+typedef struct XrSwapchainStateSamplerOpenGLESFB {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    EGLenum               minFilter;
+    EGLenum               magFilter;
+    EGLenum               wrapModeS;
+    EGLenum               wrapModeT;
+    EGLenum               swizzleRed;
+    EGLenum               swizzleGreen;
+    EGLenum               swizzleBlue;
+    EGLenum               swizzleAlpha;
+    float                 maxAnisotropy;
+    XrColor4f             borderColor;
+} XrSwapchainStateSamplerOpenGLESFB;
+#endif // XR_USE_GRAPHICS_API_OPENGL_ES
+
+#endif /* XR_USE_GRAPHICS_API_OPENGL_ES */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_FB_swapchain_update_state_vulkan is a preprocessor guard. Do not pass it to API calls.
+#define XR_FB_swapchain_update_state_vulkan 1
+#define XR_FB_swapchain_update_state_vulkan_SPEC_VERSION 1
+#define XR_FB_SWAPCHAIN_UPDATE_STATE_VULKAN_EXTENSION_NAME "XR_FB_swapchain_update_state_vulkan"
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+typedef struct XrSwapchainStateSamplerVulkanFB {
+    XrStructureType         type;
+    void* XR_MAY_ALIAS      next;
+    VkFilter                minFilter;
+    VkFilter                magFilter;
+    VkSamplerMipmapMode     mipmapMode;
+    VkSamplerAddressMode    wrapModeS;
+    VkSamplerAddressMode    wrapModeT;
+    VkComponentSwizzle      swizzleRed;
+    VkComponentSwizzle      swizzleGreen;
+    VkComponentSwizzle      swizzleBlue;
+    VkComponentSwizzle      swizzleAlpha;
+    float                   maxAnisotropy;
+    XrColor4f               borderColor;
+} XrSwapchainStateSamplerVulkanFB;
+#endif // XR_USE_GRAPHICS_API_VULKAN
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_GRAPHICS_API_VULKAN
+
+// XR_META_vulkan_swapchain_create_info is a preprocessor guard. Do not pass it to API calls.
+#define XR_META_vulkan_swapchain_create_info 1
+#define XR_META_vulkan_swapchain_create_info_SPEC_VERSION 1
+#define XR_META_VULKAN_SWAPCHAIN_CREATE_INFO_EXTENSION_NAME "XR_META_vulkan_swapchain_create_info"
+// XrVulkanSwapchainCreateInfoMETA extends XrSwapchainCreateInfo
+typedef struct XrVulkanSwapchainCreateInfoMETA {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    VkImageCreateFlags          additionalCreateFlags;
+    VkImageUsageFlags           additionalUsageFlags;
+} XrVulkanSwapchainCreateInfoMETA;
+
+#endif /* XR_USE_GRAPHICS_API_VULKAN */
+
+#ifdef XR_USE_PLATFORM_ANDROID
+
+// XR_ANDROID_anchor_sharing_export is a preprocessor guard. Do not pass it to API calls.
+#define XR_ANDROID_anchor_sharing_export 1
+#define XR_ANDROID_anchor_sharing_export_SPEC_VERSION 1
+#define XR_ANDROID_ANCHOR_SHARING_EXPORT_EXTENSION_NAME "XR_ANDROID_anchor_sharing_export"
+typedef struct XrAnchorSharingInfoANDROID {
+    XrStructureType             type;
+    const void* XR_MAY_ALIAS    next;
+    XrSpace                     anchor;
+} XrAnchorSharingInfoANDROID;
+
+typedef struct XrAnchorSharingTokenANDROID {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    struct AIBinder*      token;
+} XrAnchorSharingTokenANDROID;
+
+// XrSystemAnchorSharingExportPropertiesANDROID extends XrSystemProperties
+typedef struct XrSystemAnchorSharingExportPropertiesANDROID {
+    XrStructureType       type;
+    void* XR_MAY_ALIAS    next;
+    XrBool32              supportsAnchorSharingExport;
+} XrSystemAnchorSharingExportPropertiesANDROID;
+
+typedef XrResult (XRAPI_PTR *PFN_xrShareAnchorANDROID)(XrSession session, const XrAnchorSharingInfoANDROID* sharingInfo, XrAnchorSharingTokenANDROID* anchorToken);
+typedef XrResult (XRAPI_PTR *PFN_xrUnshareAnchorANDROID)(XrSession session, XrSpace anchor);
+
+#ifndef XR_NO_PROTOTYPES
+#ifdef XR_EXTENSION_PROTOTYPES
+XRAPI_ATTR XrResult XRAPI_CALL xrShareAnchorANDROID(
+    XrSession                                   session,
+    const XrAnchorSharingInfoANDROID*           sharingInfo,
+    XrAnchorSharingTokenANDROID*                anchorToken);
+
+XRAPI_ATTR XrResult XRAPI_CALL xrUnshareAnchorANDROID(
+    XrSession                                   session,
+    XrSpace                                     anchor);
+#endif /* XR_EXTENSION_PROTOTYPES */
+#endif /* !XR_NO_PROTOTYPES */
+#endif /* XR_USE_PLATFORM_ANDROID */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -0,0 +1,114 @@
+/*
+** Copyright (c) 2017-2026 The Khronos Group Inc.
+**
+** SPDX-License-Identifier: Apache-2.0 OR MIT
+*/
+
+#ifndef OPENXR_PLATFORM_DEFINES_H_
+#define OPENXR_PLATFORM_DEFINES_H_ 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Platform-specific calling convention macros.
+ *
+ * Platforms should define these so that OpenXR clients call OpenXR functions
+ * with the same calling conventions that the OpenXR implementation expects.
+ *
+ * XRAPI_ATTR - Placed before the return type in function declarations.
+ *              Useful for C++11 and GCC/Clang-style function attribute syntax.
+ * XRAPI_CALL - Placed after the return type in function declarations.
+ *              Useful for MSVC-style calling convention syntax.
+ * XRAPI_PTR  - Placed between the '(' and '*' in function pointer types.
+ *
+ * Function declaration:  XRAPI_ATTR void XRAPI_CALL xrFunction(void);
+ * Function pointer type: typedef void (XRAPI_PTR *PFN_xrFunction)(void);
+ */
+#if defined(_WIN32)
+#define XRAPI_ATTR
+// On Windows, functions use the stdcall convention
+#define XRAPI_CALL __stdcall
+#define XRAPI_PTR XRAPI_CALL
+#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7
+#error "API not supported for the 'armeabi' NDK ABI"
+#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE)
+// On Android 32-bit ARM targets, functions use the "hardfloat"
+// calling convention, i.e. float parameters are passed in registers. This
+// is true even if the rest of the application passes floats on the stack,
+// as it does by default when compiling for the armeabi-v7a NDK ABI.
+#define XRAPI_ATTR __attribute__((pcs("aapcs-vfp")))
+#define XRAPI_CALL
+#define XRAPI_PTR XRAPI_ATTR
+#else
+// On other platforms, use the default calling convention
+#define XRAPI_ATTR
+#define XRAPI_CALL
+#define XRAPI_PTR
+#endif
+
+#include <stddef.h>
+
+#if !defined(XR_NO_STDINT_H)
+#if defined(_MSC_VER) && (_MSC_VER < 1600)
+typedef signed __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef signed __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef signed __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef signed __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#else
+#include <stdint.h>
+#endif
+#endif  // !defined( XR_NO_STDINT_H )
+
+// XR_PTR_SIZE (in bytes)
+#if (defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined(_M_IA64) || defined(__aarch64__) || defined(__powerpc64__))
+#define XR_PTR_SIZE 8
+#else
+#define XR_PTR_SIZE 4
+#endif
+
+// Needed so we can use clang __has_feature portably.
+#if !defined(XR_COMPILER_HAS_FEATURE)
+#if defined(__clang__)
+#define XR_COMPILER_HAS_FEATURE(x) __has_feature(x)
+#else
+#define XR_COMPILER_HAS_FEATURE(x) 0
+#endif
+#endif
+
+// Identifies if the current compiler has C++11 support enabled.
+// Does not by itself identify if any given C++11 feature is present.
+#if !defined(XR_CPP11_ENABLED) && defined(__cplusplus)
+#if defined(__GNUC__) && defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define XR_CPP11_ENABLED 1
+#elif defined(_MSC_VER) && (_MSC_VER >= 1600)
+#define XR_CPP11_ENABLED 1
+#elif (__cplusplus >= 201103L) // 201103 is the first C++11 version.
+#define XR_CPP11_ENABLED 1
+#endif
+#endif
+
+// Identifies if the current compiler supports C++11 nullptr.
+#if !defined(XR_CPP_NULLPTR_SUPPORTED)
+#if defined(XR_CPP11_ENABLED) &&                                              \
+    ((defined(__clang__) && XR_COMPILER_HAS_FEATURE(cxx_nullptr)) ||          \
+     (defined(__GNUC__) && (((__GNUC__ * 1000) + __GNUC_MINOR__) >= 4006)) || \
+     (defined(_MSC_VER) && (_MSC_VER >= 1600)) ||                             \
+     (defined(__EDG_VERSION__) && (__EDG_VERSION__ >= 403)))
+#define XR_CPP_NULLPTR_SUPPORTED 1
+#endif
+#endif
+
+#if !defined(XR_CPP_NULLPTR_SUPPORTED)
+#define XR_CPP_NULLPTR_SUPPORTED 0
+#endif  // !defined(XR_CPP_NULLPTR_SUPPORTED)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -247,7 +247,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "mkdir -p \"${DERIVED_FILE_DIR}\"\npython3 \"${SRCROOT}/scripts/make_frame_bundle.py\" \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" > \"${DERIVED_FILE_DIR}/frame-bundle.version\"\nmkdir -p \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}\"\ncp \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.version\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/\"\n";
+			shellScript = "set -e\nmkdir -p \"${DERIVED_FILE_DIR}\"\n# Written aside and moved into place together, so a failed download can't leave a stale pair.\npython3 \"${SRCROOT}/scripts/make_frame_bundle.py\" \"${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz\" > \"${DERIVED_FILE_DIR}/frame-bundle.new.version\"\nmv \"${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\"\nmv \"${DERIVED_FILE_DIR}/frame-bundle.new.version\" \"${DERIVED_FILE_DIR}/frame-bundle.version\"\nmkdir -p \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}\"\ncp \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.version\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/\"\n";
 		};
 /* End PBXShellScriptBuildPhase section */

@@ -1,4 +1,5 @@
 import Citadel
+import CryptoKit
 import Foundation
 import SwiftUI
 import UIKit
@@ -33,6 +34,11 @@ final class AppModel: ObservableObject {
    }

    var deviceName: String { UIDevice.current.userInterfaceIdiom == .pad ? "iPad" : "iPhone" }
+    /// Stable per install: a hash of this device's SSH key, which is made once and kept in the Keychain.
+    var clientID: String {
+        let digest = SHA256.hash(data: Data(authorizedKeysLine.utf8))
+        return deviceName.lowercased() + "-" + digest.prefix(6).map { String(format: "%02x", $0) }.joined()
+    }
    private var hostKey: String? { UserDefaults.standard.string(forKey: Self.hostKeyKey) }

    // MARK: pairing
@@ -167,7 +173,7 @@ final class AppModel: ObservableObject {
            guard current() else { throw CancellationError() }
            step("Starting Frame Control on the headset")
            let key = Self.randomKey()
-            let server = try await HeadsetServer.start(in: dir, over: l, key: key, device: deviceName)
+            let server = try await HeadsetServer.start(in: dir, over: l, key: key, device: deviceName, client: clientID)
            guard current() else { throw CancellationError() }
            let f = try await PortForwarder.start(over: l, to: server.port)
            forwarder = f
@@ -80,8 +80,10 @@ final class HeadsetServer: @unchecked Sendable {
    }

    /// Starts the server in dir and waits for it to say which port it took.
-    static func start(in dir: String, over link: FrameLink, key: String, device: String) async throws -> HeadsetServer {
+    /// client is a stable id for this install (keyboard-and-trackpad pairing is kept per client).
+    static func start(in dir: String, over link: FrameLink, key: String, device: String, client: String) async throws -> HeadsetServer {
        let command = "cd \(dir) && FRAME_LOCAL=1 FRAME_UI_KEY=\(key) FRAME_DEVICE=\(shellQuote(device)) "
+            + "FRAME_CLIENT=\(shellQuote(client)) "
            + "exec python3 -I -u -B \"$PWD/ui/server.py\" --port 0 --exit-on-eof 2>&1"
        let stream = try await link.client.executeCommandStream(command)
        let box = PortWaiter()
@@ -52,8 +52,12 @@ targets:
      - name: Pack the Frame bundle
        # The server, headset helpers and catalogue, as the app copies them to the Frame.
        script: |
+          set -e
          mkdir -p "${DERIVED_FILE_DIR}"
-          python3 "${SRCROOT}/scripts/make_frame_bundle.py" "${DERIVED_FILE_DIR}/frame-bundle.tar.gz" > "${DERIVED_FILE_DIR}/frame-bundle.version"
+          # Written aside and moved into place together, so a failed download can't leave a stale pair.
+          python3 "${SRCROOT}/scripts/make_frame_bundle.py" "${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz" > "${DERIVED_FILE_DIR}/frame-bundle.new.version"
+          mv "${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz" "${DERIVED_FILE_DIR}/frame-bundle.tar.gz"
+          mv "${DERIVED_FILE_DIR}/frame-bundle.new.version" "${DERIVED_FILE_DIR}/frame-bundle.version"
          mkdir -p "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
          cp "${DERIVED_FILE_DIR}/frame-bundle.tar.gz" "${DERIVED_FILE_DIR}/frame-bundle.version" "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/"
        basedOnDependencyAnalysis: false
@@ -1,6 +1,8 @@
 #!/usr/bin/env python3
 """Pack what Frame Control's server needs to run on the Frame itself (the files the
-desktop app ships, plus ui/local-bin) into one reproducible .tar.gz.
+desktop app ships, plus ui/local-bin) into one reproducible .tar.gz. That includes
+KDE Connect for the keyboard and trackpad (frame/kdeconnect), downloaded first and
+checked against its pinned SHA-256s.

 The iPhone app copies it to ~/.cache/frame-control/<version> on the Frame and
 starts ui/server.py there. <version> is the SHA-256 of the archive, so a new
@@ -17,7 +19,9 @@ from pathlib import Path

 ROOT = Path(__file__).resolve().parents[2]
 PATTERNS = ["ui/*.py", "ui/*.html", "ui/local-bin/*", "scripts/*.sh", "frame/android/*.sh", "frame/android/*.py",
-            "frame/devkit-utils/**/*", "apk-catalog/*.py", "apk-catalog/pins.json", "apk-catalog/site/apps.js"]
+            "frame/devkit-utils/**/*", "apk-catalog/*.py", "apk-catalog/pins.json", "apk-catalog/site/apps.js",
+            "frame/kdeconnect/packages.json", "frame/kdeconnect/NOTICE.md", "frame/kdeconnect/LICENSES/*/*",
+            "frame/kdeconnect/packages/*.pkg.tar.zst", "LICENSE", "THIRD_PARTY_NOTICES.md"]


 def files():
@@ -47,6 +51,9 @@ def build():
 if __name__ == "__main__":
    if len(sys.argv) != 2:
        sys.exit(__doc__)
+    sys.path.insert(0, str(ROOT / "frame" / "kdeconnect"))
+    import fetch
+    fetch.fetch()
    data = build()
    Path(sys.argv[1]).write_bytes(data)
    print(hashlib.sha256(data).hexdigest()[:16])
@@ -26,3 +26,5 @@
 - (instancetype)initWithDescriptor:(CGVirtualDisplayDescriptor *)descriptor;
 - (BOOL)applySettings:(CGVirtualDisplaySettings *)settings;
@end
+
+#include "../../../desktop/controller.h"
@@ -1,234 +1,45 @@
-// Adapts each stream to its network, latency first. The viewer acknowledges
-// every frame as it arrives ("rx"); from those acks the controller knows how
-// long frames take to get through and how fast the link delivers them.
-//
-// - The gate: a new frame is sent only while the oldest unacknowledged one is
-//   younger than the path's usual round trip plus a little slack. So frames
-//   never queue up in SSH, TCP or the Wi-Fi driver; while the link is stuck
-//   the newest picture waits and goes out as soon as it moves again.
-// - The bitrate: when frames start queueing (the round trip grows) or the
-//   gate has to hold frames back, it drops to a bit under what the link
-//   actually delivered; once things are clear it probes up again slowly, never
-//   above the quality setting's bitrate (the ceiling).
-// - The tier: as the bitrate falls, fewer frames per second (60, 45, 30), then
-//   a smaller picture (75%, then 50% of the panel's pixels).
-// See docs/mac-in-headset.md ("Adapting to the network"). Thread-safe.
+// Thin, serialized binding to the same controller used by the PC host.
+// Algorithm and bounded state live in desktop/controller.c.
 import Foundation

 final class RateController {
-    struct Tier: Equatable {
-        let fps: Int
-        let scale: Double  // of the picture's long side
-    }
-
-    static let tiers = [Tier(fps: 60, scale: 1), Tier(fps: 45, scale: 1), Tier(fps: 30, scale: 1),
-                        Tier(fps: 30, scale: 0.75), Tier(fps: 30, scale: 0.5)]
-    /// A tier is used while the target bitrate is at least this share of the ceiling.
-    static let floors = [0.45, 0.28, 0.16, 0.08, 0]
    static let enabled = ProcessInfo.processInfo.environment["FRAME_MAC_VIEW_ADAPT"] != "0"
-
    let maxFps: Int
    private let lock = NSLock()
-    private var ceiling = 0  // bits/s at full size and frame rate
-    private(set) var target = 0
-    private(set) var tier = 0
-    private var unacked: [(seq: UInt32, sent: Int64, bytes: Int)] = []
-    /// Round trips (send -> ack arrives here), for the baseline: the lowest
-    /// in the last 10 s is the path without any queue.
-    private var rtts: [(t: Int64, v: Int64)] = []
-    private var acked: [(t: Int64, bytes: Int)] = []  // the last second
-    private var sentLog: [(t: Int64, bytes: Int)] = []
-    private var captures: [Int64] = []  // the last second
-    private var frameBytes = 0  // average recent frame, kept while the gate holds everything back
-    private var held = 0  // frames the gate held back since the last update
-    private var lastSignal = false
-    private var sawAck = false
-    private var lastDecrease: Int64 = 0
-    private var lastIncrease: Int64 = 0
-    private var belowSince: Int64 = 0, aboveSince: Int64 = 0
-    /// What changed, for the timeline: (time, event).
-    private(set) var events: [(Int64, String)] = []
-
-    init(maxFps: Int) { self.maxFps = maxFps }
-
+    private let core: OpaquePointer
+    private var events: [[String: Any]] = []
+    init(maxFps: Int) {
+        self.maxFps = maxFps
+        core = fc_new(Int32(maxFps), Self.enabled ? 1 : 0)!
+    }
+    deinit { fc_free(core) }
    private func locked<T>(_ f: () -> T) -> T { lock.lock(); defer { lock.unlock() }; return f() }
-
-    /// The quality setting's bitrate at full size; the first call also starts there.
-    func setCeiling(_ bps: Int) {
-        locked {
-            if target == 0 || target > bps { target = bps }
-            ceiling = bps
-        }
-    }
-
-    var fps: Int { locked { fpsLocked } }
-    private var fpsLocked: Int { min(maxFps, RateController.tiers[tier].fps) }
-    var scale: Double { locked { RateController.tiers[tier].scale } }
-    var baseRtt: Int64 { locked { baseline() } }
-
-    private func baseline() -> Int64 { rtts.map(\.v).min() ?? 0 }
-
-    /// How late a frame may be before the gate holds the next one: one frame
-    /// interval, plus room for the jitter this link normally has (1.5 times
-    /// its recent spread), so ordinary Wi-Fi jitter doesn't cost frames but a
-    /// real queue does. Updated in update().
-    private var slack: Int64 = 40_000
-
-    /// Whether a frame may be sent now without queueing behind earlier ones.
-    /// `counts`: a held frame is a sign of congestion (not when merely
-    /// re-checking whether a held frame can go yet).
-    func maySend(now: Int64, counts: Bool = true) -> Bool {
-        locked {
-            guard RateController.enabled, sawAck else { return true }  // not heard from the viewer yet
-            // Unacknowledged for 2 s: gone with a reconnection, not in a queue.
-            unacked.removeAll { now - $0.sent > 2_000_000 }
-            guard let oldest = unacked.first else { return true }
-            // Age is what bounds latency. The count only stops a burst, and it
-            // allows a full round trip of frames, so a long but clear path
-            // (100 ms away) still gets every frame.
-            let interval = Int64(1_000_000 / max(1, fpsLocked))
-            let window = max(3, Int((baseline() + slack) / interval) + 1)
-            if unacked.count < window, now - oldest.sent <= baseline() + slack { return true }
-            if counts { held += 1 }
-            return false
-        }
-    }
-
-    /// A picture was captured (sent or not): with the frame sizes, what this
-    /// stream would send if the link allowed.
-    func captured(at t: Int64) {
-        locked {
-            captures.append(t)
-            if captures.count > 256 { captures.removeFirst(captures.count - 256) }
-        }
-    }
-
-    func sent(seq: UInt32, bytes: Int, at t: Int64) {
-        locked {
-            // Bounded even if the viewer never acknowledges (an old viewer, or
-            // the controller is off).
-            unacked.append((seq, t, bytes))
-            if unacked.count > 512 { unacked.removeFirst(unacked.count - 512) }
-            sentLog.append((t, bytes))
-            if sentLog.count > 1024 { sentLog.removeFirst(sentLog.count - 1024) }
-        }
-    }
-
-    /// The viewer has frame `seq`. Returns true if that may let a held frame go.
-    func acked(seq: UInt32, at now: Int64) -> Bool {
-        locked {
-            sawAck = true
-            guard let i = unacked.firstIndex(where: { $0.seq == seq }) else { return false }
-            let f = unacked[i]
-            unacked.removeSubrange(0...i)  // TCP delivers in order: earlier ones arrived too
-            rtts.append((now, now - f.sent))
-            acked.append((now, f.bytes))
-            return true
-        }
-    }
-
-    /// Called every 100 ms. Returns the new bitrate target, or nil if the
-    /// controller is off.
+    private func value(_ field: Int32) -> Int { Int(fc_value(core, field)) }
+    var target: Int { locked { value(0) } }
+    var tier: Int { locked { value(2) } }
+    var fps: Int { locked { value(3) } }
+    var scale: Double { locked { Double(value(4)) / 100 } }
+    var baseRtt: Int64 { locked { fc_value(core, 5) } }
+    func setCeiling(_ bps: Int) { locked { fc_ceiling(core, Int32(bps)) } }
+    func maySend(now: Int64, counts: Bool = true) -> Bool { locked { fc_gate(core, now, counts ? 1 : 0) != 0 } }
+    func captured(at t: Int64) { locked { fc_capture(core, t) } }
+    func sent(seq: UInt32, bytes: Int, at t: Int64) { locked { fc_sent(core, seq, Int32(bytes), t) } }
+    func acked(seq: UInt32, at t: Int64) -> Bool { locked { fc_ack(core, seq, t) != 0 } }
    func update(now: Int64) -> Int? {
        locked {
-            rtts.removeAll { now - $0.t > 10_000_000 }
-            acked.removeAll { now - $0.t > 500_000 }
-            sentLog.removeAll { now - $0.t > 500_000 }
-            unacked.removeAll { now - $0.sent > 2_000_000 }
-            captures.removeAll { now - $0 > 1_000_000 }
-            guard RateController.enabled, ceiling > 0 else { return nil }
-            let base = baseline()
-            let spread = rtts.filter { now - $0.t < 2_000_000 }.map(\.v).sorted()
-            let jitter = spread.isEmpty ? 0 : spread[spread.count * 9 / 10] - base
-            let interval = Int64(1_000_000 / max(1, fpsLocked))
-            slack = interval + min(max(jitter * 3 / 2, 25_000), 80_000)
-            let recent = rtts.filter { now - $0.t < 300_000 }.map(\.v).sorted()
-            let queueing = recent.isEmpty ? 0 : recent[recent.count / 2] - base
-            let oldestAge = unacked.first.map { now - $0.sent } ?? 0
-            let stuck = oldestAge > base + 100_000
-            let delivered = acked.reduce(0) { $0 + $1.bytes } * 16  // bits/s over the last half second
-            let sending = sentLog.reduce(0) { $0 + $1.bytes } * 16
-            // Demand: captures per second (up to the tier's rate) times the
-            // average frame. A test card or a mostly still window wants far
-            // less than its budget; when the link hiccups, cutting its bitrate
-            // can't help, and it would only look link-limited afterwards.
-            if !sentLog.isEmpty { frameBytes = sentLog.reduce(0) { $0 + $1.bytes } / sentLog.count }
-            let demand = min(captures.count, fpsLocked) * frameBytes * 8
-            // Delay alone isn't our queue: Wi-Fi jitters by itself. It only
-            // counts while this stream uses a good part of its budget (so its
-            // own data could be what's queueing). Frames the gate had to hold,
-            // or one stuck in flight, show demand the link isn't carrying
-            // whatever was sent (the gate itself keeps what's sent low).
-            let busy = sending >= target / 2
-            // Twice in a row (200 ms), so one late ack doesn't count.
-            let signal = (busy && queueing > 40_000) || held >= 3 || stuck
-            let congested = signal && lastSignal
-            lastSignal = signal
-            let heldNow = held
-            held = 0
-            let floorBps = 300_000
-            if congested, now - lastDecrease > 300_000 {
-                // Down to a bit under what got through: at least a fifth off, at
-                // most half (a stall delivers nothing, but the link is still there).
-                let measured = Int(Double(delivered) * 0.9)
-                var next = max(floorBps, min(target * 4 / 5, max(measured, target / 2)))
-                // App-limited (it wants about half its budget or less): never
-                // below twice what it wants, however many cuts in a row. The
-                // extra quarter is hysteresis, so frame sizes wobbling at the
-                // floor don't switch the protection off.
-                if demand > 0, demand * 2 <= target * 5 / 4 { next = max(next, min(target, demand * 2)) }
-                target = next
-                lastDecrease = now
-                events.append((now, "down to \(target / 1000) kbit/s: queue \(queueing / 1000) ms, held \(heldNow), "
-                                    + "oldest \(oldestAge / 1000) ms, base \(base / 1000) ms, sent \(sending / 1000) got \(delivered / 1000) "
-                                    + "wants \(demand / 1000)"))
-            } else if !congested, now - lastDecrease > 1_000_000, now - lastIncrease > 250_000, target < ceiling,
-                      sending > target * 6 / 10 || now - lastDecrease > 3_000_000 {
-                // Clear for a second and using what it has: probe up.
-                target = min(ceiling, Int(Double(target) * 1.1) + 50_000)
-                lastIncrease = now
+            let old = value(0), tier = value(2)
+            let result = Int(fc_update(core, now))
+            if value(0) < old || value(2) != tier {
+                events.append(["t": now, "e": "target \(value(0)) bit/s; tier \(value(2))"])
+                if events.count > 200 { events.removeFirst() }
            }
-            // Fewer frames or pixels only help a stream that fills its budget;
-            // a small one (a still window, a test card) keeps its tier.
-            retier(now: now, linkLimited: sending >= target * 7 / 10)
-            if events.count > 200 { events.removeFirst(events.count - 200) }
-            return target
+            return result == 0 ? nil : result
        }
    }
-
-    /// Steps down quickly, straight to the tier the bitrate supports, and back
-    /// up one tier at a time only when there's clearly room (hysteresis).
-    private func retier(now: Int64, linkLimited: Bool) {
-        let share = Double(target) / Double(max(ceiling, 1))
-        if tier < RateController.tiers.count - 1, share < RateController.floors[tier], linkLimited {
-            if belowSince == 0 { belowSince = now }
-            if now - belowSince > 500_000 {
-                tier = RateController.floors.firstIndex { share >= $0 } ?? RateController.tiers.count - 1
-                belowSince = 0
-                events.append((now, "tier \(tier)"))
-            }
-        } else {
-            belowSince = 0
-        }
-        if tier > 0, share > RateController.floors[tier - 1] * 1.25 {
-            if aboveSince == 0 { aboveSince = now }
-            if now - aboveSince > 2_000_000 {
-                tier -= 1
-                aboveSince = 0
-                events.append((now, "tier \(tier)"))
-            }
-        } else {
-            aboveSince = 0
-        }
-    }
-
    func state() -> [String: Any] {
-        locked {
-            ["target": target, "ceiling": ceiling, "tier": tier, "fps": min(maxFps, RateController.tiers[tier].fps),
-             "scale": RateController.tiers[tier].scale, "baseRtt": Double(baseline()) / 1000,
-             "inFlight": unacked.count, "slack": Double(slack) / 1000, "adapt": RateController.enabled]
-        }
+        locked { ["target": value(0), "ceiling": value(1), "tier": value(2), "fps": value(3),
+                  "scale": Double(value(4)) / 100, "baseRtt": Double(value(5)) / 1000,
+                  "inFlight": value(6), "slack": Double(value(7)) / 1000, "adapt": Self.enabled] }
    }
-
-    func eventList() -> [[String: Any]] { locked { events.map { ["t": $0.0, "e": $0.1] } } }
+    func eventList() -> [[String: Any]] { locked { events } }
 }
@@ -5,7 +5,10 @@ set -eu
 here=$(cd "$(dirname "$0")" && pwd)
 out=${1:-$here/../bin/frame-mac-view}
 mkdir -p "$(dirname "$out")"
+obj=$(mktemp /tmp/frame-controller.XXXXXX)
+trap 'rm -f "$obj"' EXIT
+xcrun clang -O2 -target arm64-apple-macos14.0 -c "$here/../../desktop/controller.c" -o "$obj"
 xcrun swiftc -O -swift-version 5 -target arm64-apple-macos14.0 \
  -import-objc-header "$here/Sources/CGVirtualDisplay.h" \
-  -o "$out" "$here"/Sources/*.swift
+  -o "$out" "$here"/Sources/*.swift "$obj"
 echo "built $out"
@@ -55,6 +55,7 @@ from urllib.parse import quote, urlencode  # %20, not +: the agent's URLComponen
 ROOT = Path(__file__).resolve().parent.parent
 sys.path.insert(0, str(ROOT / "ui"))
 import frame_macview  # noqa: E402
+import frame_pcview  # noqa: E402

 RESULTS = ROOT / "bench" / "results"
 PAGES = ROOT / "bench" / "pages"
@@ -254,7 +255,10 @@ class LabView(frame_macview.MacView):

 def ssh_runner(base):
    def run(remote, stdin=None, timeout=30):
-        r = subprocess.run([*base, remote], input=stdin, capture_output=True, text=True, timeout=timeout)
+        r = subprocess.run([*base, remote], input=stdin.encode("utf-8") if stdin is not None else None,
+                           capture_output=True, timeout=timeout)
+        r.stdout = r.stdout.decode("utf-8", errors="replace")
+        r.stderr = r.stderr.decode("utf-8", errors="replace")
        if r.returncode:
            e = RuntimeError((r.stderr or r.stdout).strip())
            e.stdout = r.stdout
@@ -381,7 +385,11 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
    if args.browser_flag is not None:
        mv.browser_flags = [f for f in args.browser_flag if f]
    chrome = None
-    src = "test"
+    src = args.source or "test"
+    cpu = None
+    if args.pc:
+        mv.host = "windows" if sys.platform == "win32" else "linux"
+        mv.viewer_profile = "pc-view"
    try:
        if scenario in ("scroll", "type"):
            chrome = chrome_window(f"{scenario}.html")
@@ -405,9 +413,10 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
        since = max([f["s"] for f in first["frames"]] or [0])
        captured_before = first["captured"]
        start_mac_us = mv.call("/stats", id=stream["id"])["now"]
-        agent_pid = int(subprocess.run(["pgrep", "-f", "Frame Mac View Lab.app/Contents/MacOS/frame-mac-view"],
-                                       capture_output=True, text=True).stdout.split()[0])
-        cpu = CpuSampler(frame_ssh, agent_pid)
+        if not args.pc:
+            agent_pid = int(subprocess.run(["pgrep", "-f", "Frame Mac View Lab.app/Contents/MacOS/frame-mac-view"],
+                                           capture_output=True, text=True).stdout.split()[0])
+            cpu = CpuSampler(frame_ssh, agent_pid)
        if relay:
            relay.begin()
        expected = 0  # input events the harness asked the viewer for
@@ -443,7 +452,8 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
        if not streams:
            raise SystemExit(f"{scenario}: the stream ended during the run (did the Frame go to sleep?)")
        data = streams[0]
-        cpu.stop()
+        if cpu:
+            cpu.stop()
        if args.raw:
            Path(f"{args.raw}-{scenario}.json").write_text(json.dumps(data))
        result = summarize(scenario, data, start_mac_us, end_mac_us, args, relay, schedule, expected)
@@ -452,7 +462,7 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
                            for e in data.get("events", []) if e["t"] >= start_mac_us]
        result["captured"] = (captured_end if captured_end is not None else data["captured"]) - captured_before
        result["source_fps"] = round(result["captured"] / max(result["duration_s"], 1), 1)
-        result["cpu"] = cpu.summary()
+        result["cpu"] = cpu.summary() if cpu else {"host": "not sampled"}
        result["viewer"] = data["summary"].get("decoder", "")
        result["show_s"] = show_s
        result["panel"] = shown.get("panel")
@@ -460,6 +470,8 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
        result["route"] = mv.route
        return result
    finally:
+        if cpu:
+            cpu.stop()
        try:
            mv.stop(src)
        except Exception:  # noqa: BLE001 - best effort
@@ -670,6 +682,8 @@ def fmt(v):

 def add_run_args(r):
    r.add_argument("--scenario", default="test,scroll,type")
+    r.add_argument("--pc", action="store_true", help="run the bundled PC host; use --scenario test or capture")
+    r.add_argument("--source", default="", help="PC source: window:ID, display:ID, or choose (Linux portal)")
    r.add_argument("--duration", type=float, default=20)
    r.add_argument("--warmup", type=float, default=3)
    r.add_argument("--quality", default="balanced", choices=list(frame_macview.QUALITY))
@@ -717,7 +731,7 @@ def frame_ssh_for(args):


 def run_suite(args, frame_ssh, quiet=False):
-    agent_port, token = lab_agent()
+    agent_port, token = (args.pc_view.port, args.pc_view.token) if args.pc else lab_agent()
    results = []
    for sc in args.scenario.split(","):
        if not quiet:
@@ -744,11 +758,12 @@ def document(args, frame_ssh, results, **extra):
    commit = git("rev-parse", "--short", "HEAD") + ("+dirty" if git("status", "--porcelain", "--", "mac", "ui") else "")
    return {
        "label": args.label or args.cmd, "date": datetime.datetime.now().isoformat(timespec="seconds"), "commit": commit,
-        "config": {"quality": args.quality, "mode": args.mode, "net": args.net or "none", "delay_ms": args.delay,
+        "config": {"quality": args.quality, "mode": "native" if args.pc else args.mode, "net": args.net or "none", "delay_ms": args.delay,
                   "buffer_ms": args.buffer, "host": args.host or args.frame, "usb": args.usb, "ssh_opts": args.ssh_opt,
                   "encoder": os.environ.get("FRAME_MAC_VIEW_ENCODER", ""), "duration_s": args.duration,
                   "browser_flags": args.browser_flag if args.browser_flag is not None else frame_macview.BROWSER_FLAGS},
-        "frame_build": build.strip().partition("=")[2], "mac": platform.mac_ver()[0], "headset": standby[-40:],
+        "frame_build": build.strip().partition("=")[2], "mac": platform.mac_ver()[0],
+        "host_platform": platform.platform(), "source": args.source, "pc_host": args.pc, "headset": standby[-40:],
        "scenarios": results, **extra,
    }

@@ -819,19 +834,46 @@ def main():
            print("\nworse:\n  " + "\n  ".join(regs))
        sys.exit(1 if regs else 0)

-    lab_agent()
+    if args.pc and (args.cmd == "ab" or args.scenario not in ("test", "capture")):
+        p.error("PC runs use --scenario test or --scenario capture; Mac automation is not portable")
+    if args.pc and args.scenario == "capture" and not args.source:
+        p.error("capture needs --source window:ID, display:ID, or choose")
+    if not args.pc:
+        lab_agent()
    frame_ssh = frame_ssh_for(args)
    # Keep the Mac's screen awake: virtual displays aren't removed while it sleeps.
    runs = 1 if args.cmd == "run" else args.repeat * len(args.arm)
-    awake = subprocess.Popen(["caffeinate", "-d", "-u", "-t", str(int(runs * (args.duration * 4 + 60) + 120))])
+    awake = subprocess.Popen(["caffeinate", "-d", "-u", "-t", str(int(runs * (args.duration * 4 + 60) + 120))]) if sys.platform == "darwin" else None
+    args.pc_view = None
    try:
+        if args.pc:
+            args.pc_view = frame_pcview.PCView(frame_ssh[:-1], ssh_runner(frame_ssh), frame_ssh[-1])
+            args.pc_view.ensure_agent()
+            if args.source == "choose":
+                args.pc_view.call("/permissions", method="POST")
+                print("Choose a window or screen in your desktop's sharing dialog.", flush=True)
+                deadline = time.monotonic()+125
+                while time.monotonic() < deadline:
+                    state = args.pc_view.call("/status")
+                    if not state.get("selecting"):
+                        sources = args.pc_view.call("/windows")["windows"]
+                        if not sources:
+                            raise SystemExit(state.get("selectionError") or "Nothing was shared")
+                        args.source = sources[-1]["src"]
+                        break
+                    time.sleep(.5)
+                else:
+                    raise SystemExit("Sharing dialog timed out")
        if args.cmd == "ab":
            arm_runs, table = ab(args, frame_ssh)
            write(document(args, frame_ssh, [], arms=args.arm, runs=arm_runs, table=table), args)
            return
        results = run_suite(args, frame_ssh)
    finally:
-        awake.terminate()
+        if args.pc_view:
+            args.pc_view.shutdown()
+        if awake:
+            awake.terminate()
    doc = document(args, frame_ssh, results)
    write(doc, args)
    bad = [f"{r['scenario']} {k}" for r in results for k, v in r["grades"].items() if v in ("bad", "missing")]
@@ -1,65 +1,8 @@
 #!/usr/bin/env zsh
-# Mac-side: upload VR videos to the Steam Frame so DeoVR can play them in 3D.
-#
-# Files go to ~/Videos/VR on the Frame. The script links that folder into
-# DeoVR's Proton prefix as C:\users\steamuser\Videos\VR, so DeoVR's file
-# browser finds it under Videos. (It's also reachable as Z:\home\steamos\Videos\VR.)
-# Uploads resume if interrupted.
-#
-# Name files so DeoVR picks the projection: include _180 or _360 (or _fisheye190,
-# _mkx200, _rf52 ...) plus the stereo layout (_LR / _SBS side by side, _TB over-
-# under), e.g. "beach_180_LR.mp4". You can also change it in DeoVR's player.
-#
-# Usage:
-#   scripts/push-vr-video.sh FILE_OR_DIR...       # upload
-#   scripts/push-vr-video.sh --launch FILE...     # upload, then start DeoVR
-#   scripts/push-vr-video.sh --launch             # just start DeoVR
-#   scripts/push-vr-video.sh --list               # what's on the Frame
+# Upload media for Frame Control's own OpenVR player (no external player).
+# Usage: scripts/push-vr-video.sh [--launch] [--layout auto|mono|sbs|ou|full-sbs|full-ou] [--theatre] FILE...
+#        scripts/push-vr-video.sh --list | --stop
+# Files go to ~/Videos/FrameControl/<id>/; --launch accepts exactly one file.
+# Directories, automatic DeoVR launching and Proton-prefix links are no longer used.
 set -euo pipefail
-
-FRAME_ALIAS=${FRAME_ALIAS:-frame}
-DEOVR_APPID=837380
-REMOTE_DIR="Videos/VR"
-PREFIX_VIDEOS=".local/share/Steam/steamapps/compatdata/$DEOVR_APPID/pfx/drive_c/users/steamuser/Videos"
-
-launch=0 list=0
-while (( $# )); do
-  case "$1" in
-    -h|--help) sed -n '2,17p' "$0"; exit 0 ;;
-    --launch)  launch=1; shift ;;
-    --list)    list=1; shift ;;
-    --)        shift; break ;;
-    -*)        print -u2 "push-vr-video: unknown option $1"; exit 2 ;;
-    *)         break ;;
-  esac
-done
-(( $# || launch || list )) || { sed -n '2,17p' "$0" >&2; exit 2; }
-
-for f in "$@"; do
-  [[ -e "$f" ]] || { print -u2 "push-vr-video: no such file: $f"; exit 2; }
-done
-
-# Create the folder and link it into DeoVR's prefix (the prefix exists once
-# DeoVR has run). Refresh a stale link, but never replace a real directory.
-if (( $# || launch )); then
-  ssh "$FRAME_ALIAS" "mkdir -p ~/$REMOTE_DIR
-p=~/$PREFIX_VIDEOS
-if [ -d \"\$p\" ] && { [ -L \"\$p/VR\" ] || [ ! -e \"\$p/VR\" ]; }; then ln -sfn ~/$REMOTE_DIR \"\$p/VR\"
-elif [ -d \"\$p/VR\" ]; then echo \"warning: \$p/VR is a real folder, so uploads won't show under DeoVR's Videos; browse Z:\\\\home\\\\steamos\\\\Videos\\\\VR instead\" >&2; fi
-[ -d \"\$p\" ] || echo 'note: DeoVR has not run yet; use Z:\\home\\steamos\\Videos\\VR or run this again after starting it once' >&2"
-fi
-
-if (( $# )); then
-  # -L: send what a symlink points at; a Mac-side link would dangle on the Frame
-  rsync -aL --partial --progress -- "$@" "$FRAME_ALIAS:$REMOTE_DIR/"
-fi
-
-if (( list )); then
-  ssh "$FRAME_ALIAS" "cd ~/$REMOTE_DIR && ls -lhR"
-fi
-
-if (( launch )); then
-  ssh "$FRAME_ALIAS" "command -v steam >/dev/null || { echo 'steam not found on the Frame' >&2; exit 1; }
-steam steam://rungameid/$DEOVR_APPID </dev/null >/dev/null 2>&1 &"
-  print "DeoVR starting on the Frame. Open Local files / the file browser → Videos → VR."
-fi
+exec python3 "${0:A:h}/../ui/frame_media_cli.py" "$@"
@@ -0,0 +1,21 @@
+"""Media transfer through the real HTTP/SSH path; the fake has no VR renderer."""
+import harness
+from harness import ok, ssh
+
+harness.require()
+
+
+class Media(harness.FrameTestCase):
+    def test_upload_and_list_without_launching_a_viewer(self):
+        # The transfer endpoint doesn't decode. Rendering belongs to the real
+        # headset smoke checks documented in docs/vr-video.md.
+        self.assertEqual(ssh('stat -c "%U:%G %a" ~/.local/share').strip(), 'steamos:steamos 755')
+        result = ok('POST', '/api/upload', raw=b'fake-media', headers={
+            'X-Mode': 'media', 'X-Filename': 'test_SBS.png'})
+        identity = result['id']
+        try:
+            files = ok('POST', '/api/media', {'action': 'list'})['files']
+            self.assertIn(identity, [f['id'] for f in files])
+            self.assertEqual(ssh('cat ~/Videos/FrameControl/'+identity), 'fake-media')
+        finally:
+            ssh('rm -rf ~/Videos/FrameControl/'+identity.split('/')[0])
@@ -231,6 +231,13 @@ def sysfs(state):

 def runtimes(state):
    """Installed compat tools as Steam app manifests, and the Lepton launcher itself."""
+    # Verified 2026-09-28, BUILD_ID 20260925.6191901: both parents are
+    # steamos:steamos 0755. The root supervisor must not leave them root-owned
+    # when creating Steam's fake manifests; user-account app installs need them.
+    for directory in (HOME + '/.local', HOME + '/.local/share'):
+        os.makedirs(directory, mode=0o755, exist_ok=True)
+        chown(directory)
+        os.chmod(directory, 0o755)
    apps = fs.STEAM_ROOT + '/steamapps'
    for alias, installed in state['runtimes'].items():
        acf = f'{apps}/appmanifest_{fs.RUNTIME_APPIDS[alias]}.acf'
@@ -0,0 +1,48 @@
+// The page's input queue, run in node against the real functions from ui/index.html.
+import { readFileSync } from "fs";
+const src = readFileSync(new URL("../../ui/index.html", import.meta.url), "utf8");
+const grab = name => src.match(new RegExp(`(?:const ${name} = [^\\n]*\\n)|((?:async )?function ${name}\\([\\s\\S]*?\\n}\\n)`))[0];
+const code = ["isMove", "padSend", "padKeep", "padFlush"].map(grab).join("");
+const fail = msg => { console.log("FAIL " + msg); process.exit(1); };
+
+function page(api) {
+  const pad = { state: "ready", queue: [], sending: false };
+  const shown = [];
+  const fns = new Function("pad", "api", "padShow", code + "; return { padSend, padFlush };")(pad, api, s => { shown.push(s); pad.state = s.state; });
+  return { pad, shown, ...fns };
+}
+
+// While a request is in flight, events queue by these rules.
+{
+  const { pad, padSend } = page(() => new Promise(() => {}));  // a request that never returns
+  const send = (state, e) => { pad.state = state; padSend(e); };
+  send("ready", { singlehold: true });     // goes out, and stays in flight
+  send("error", { dx: 3 });                // dropped: a stale move while broken
+  send("error", { singlerelease: true });  // kept
+  send("off", { singlerelease: true });    // off: nothing was held
+  send("pairing", { key: "a" });           // kept while reconnecting
+  send("pairing", { dx: 1 });              // dropped
+  for (let i = 0; i < 250; i++) send("pairing", { key: "x" });
+  send("pairing", { singlerelease: true }); // kept past the 200 cap
+  const q = pad.queue;
+  if (!(q[0].singlerelease && q[1].key === "a" && q.at(-1).singlerelease && !q.some(e => "dx" in e)
+        && q.filter(e => e.singlerelease).length === 2)) fail("queueing " + JSON.stringify(q.slice(0, 3)) + " len " + q.length);
+}
+
+// A request that fails, or reaches a link that had dropped, keeps its keys and releases.
+for (const [label, api] of [["request failed", async () => { throw new Error("offline"); }],
+                            ["not sent", async () => ({ state: "starting", sent: false })]]) {
+  const { pad, padSend, shown } = page(api);
+  padSend({ dx: 5 });  // sent and lost: a move, fine to drop
+  await new Promise(r => setTimeout(r, 0));
+  pad.state = "ready";
+  padSend({ singlerelease: true });
+  padSend({ dx: 7 });  // queued while that request is in flight: stale once it fails
+  padSend({ key: "b" });
+  await new Promise(r => setTimeout(r, 0));
+  const q = pad.queue;
+  if (!(q.some(e => e.singlerelease) && q.some(e => e.key === "b") && !q.some(e => "dx" in e)))
+    fail(label + ": " + JSON.stringify(q));
+  if (!shown.length || shown.at(-1).state === "ready") fail(label + ": state not shown");
+}
+console.log("queue rules ok");
Author	SHA1	Message	Date
saphid	3cb3defaa7	Record blocked shared-Frame verification and portal limits	2026-09-29 11:13:08 +10:00
saphidandClaude Opus 5.5	a992f6d896	PC host: review fixes (idle watchdog, controller close race, malformed input, loader path) - The 10 s watchdog no longer ends idle sessions. PipeWire and WGC deliver frames only on damage; fail only when a frame entered the encoder and never came out, or the pipeline never produced its initial frame. - Controller.state/call/update are inert after close(), so a /status poll racing Stop cannot dereference the freed native controller. - Malformed viewer fields drop the event instead of ending the session. - PATH/LD_LIBRARY_PATH prepends add no empty (current directory) entry. - portal.c: document fd ownership. pipewiresrc dups the fd it is given (gstpipewirecore.c, F_DUPFD_CLOEXEC), so the portal closing its own fd is correct; clear it after close. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 10:44:12 +10:00
saphidandClaude Opus 5.5	d9d538690e	Merge origin/main into pc-in-headset Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 10:38:37 +10:00
Alex Southwell	ef56025ad1	Merge pull request #19 from saphid/frame-input Keyboard and trackpad for the Frame, through its own KDE Connect	2026-09-29 10:33:35 +10:00
Alex Southwell	697452e5a9	Merge pull request #42 from saphid/theatre-media Add owned Frame-side theatre and stereo media previews	2026-09-29 10:27:40 +10:00
saphidandClaude Opus 5.5	4bb7a1ee86	Merge main into frame-input: keyboard and trackpad alongside analytics, the Mac view and MCP Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 10:25:26 +10:00
saphid	ae7f733b90	Merge remote-tracking branch 'origin/main' into theatre-media # Conflicts: # ui/server.py	2026-09-29 10:21:27 +10:00
saphidandClaude Opus 5.5	b00db2484d	Keep the backslash upload-name test POSIX-only Windows treats the backslash as a separator, so that name can't occur there. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 10:15:37 +10:00
Alex Southwell	363497fdd5	Merge pull request #20 from saphid/vr-apks Run Quest and other VR APKs on the Frame: VR detection, launcher fix, OpenXR 1.1 compatibility layer	2026-09-29 10:13:11 +10:00
Alex Southwell	ff52f50c0c	Merge pull request #22 from saphid/mac-in-headset Mac in the headset: Mac windows as panels, measured and adapting to the network	2026-09-29 10:12:46 +10:00
saphid	b0d6039eec	Merge remote-tracking branch 'origin/main' into theatre-media # Conflicts: # docs/testing.md # ui/server.py	2026-09-29 10:08:45 +10:00
saphidandClaude Opus 5.5	86b8ab1d82	Assert the start-failure test reaches systemd-run Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 10:01:17 +10:00
saphidandClaude Opus 5.5	e288946b81	Merge main into vr-apks: VR installs report through install_hooks like every other install Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 09:58:55 +10:00
saphidandClaude Opus 5.5	020e3386e1	Make media stop race-free and cover start failures Stop always calls systemctl and treats exit 5 (unit already collected) as done, so there is no is-active/stop race. Cleanup never masks the copy error, the play ssh timeout covers the remote worst case, and tests cover stop exit codes and systemd-run stderr reporting. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 09:30:03 +10:00
saphidandClaude Opus 5.5	f81f70ed5d	Fix media stop, upload cleanup and review findings - Stop is a no-op when the collected player unit is already gone (raw systemctl stop exits 5 on the Frame; verified 2026-09-29). - Surface systemd-run stderr when the player can't start. - Keep the copy error if the cleanup ssh also fails; reject upload names that the play path can never accept. - Allow 60 s for play (ffprobe 30 s + systemd-run 15 s remote). - Docs: four-hour cap is unconditional; no delete action yet; fix a garbled timing sentence. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 09:22:22 +10:00
saphid	391ecbeac5	Record final local test coverage and desktop verification limits	2026-09-28 23:14:36 +10:00
saphid	1dc2a99617	Map the exported PipeWire video adapter factory	2026-09-28 23:13:19 +10:00
saphid	d6f3d7c380	Set Windows DPI coordinates before native plugin initialization	2026-09-28 23:10:00 +10:00
saphid	838eaa4e6b	Cover the available PipeWire converter and its D-Bus support	2026-09-28 23:09:04 +10:00
saphid	6104c3f192	Refuse window input when Windows cannot focus its target	2026-09-28 23:07:38 +10:00
saphid	da5c954ce4	Retain the final idle-window update while the stream gate is closed	2026-09-28 23:05:23 +10:00
saphid	2466c5aa14	Include and smoke-test PipeWire video adapter factories	2026-09-28 23:00:13 +10:00
saphid	060cf9cd57	Bundle PipeWire client modules and record the real Frame probe	2026-09-28 22:58:41 +10:00
saphid	cd202433bb	Verify shared adaptation and harden PC stream lifecycle	2026-09-28 22:50:58 +10:00
saphid	4d4e45f622	Pin fake Frame data directory modes	2026-09-28 22:46:00 +10:00
saphid	6ecd0cea39	Match fake Frame user data ownership to the headset	2026-09-28 22:44:14 +10:00
saphid	c335cd5130	Fix media test portability and e2e discovery	2026-09-28 22:37:28 +10:00
saphid	0d448ab510	Add owned OpenVR media playback and stereo previews	2026-09-28 22:33:50 +10:00
saphid	c5fc552c60	Add native PC capture adapters behind the shared panel viewer	2026-09-28 22:29:34 +10:00
saphid	559caa2dd0	Share the desktop stream rate controller across host platforms	2026-09-28 22:23:10 +10:00
saphidandClaude Opus 5.5	41f08ac9a2	Bundled KDE Connect: one safety net for every launch failure Any unexpected error while launching clears the launch and reports it, so the pad can always be started again; the temporary stderr file is made inside the handled path and a failure reading it is tolerated. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 22:01:09 +10:00
saphidandClaude Opus 5.5	98a5ec45bb	Bundled KDE Connect: tidying up can't leave the pad stuck starting discard() swallows OSError as well as Failure, so a launch that fails and can't remove its copy still reports the error and can be started again. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:56:00 +10:00
saphidandClaude Opus 5.5	e4421d966a	Bundled KDE Connect: the server owns a copy until its agent speaks The agent holds its copy from its first status line on and tidies it up however it ends. Before that (a launch error, or stopped before the agent ran) the server removes the copy itself. discard() only ever removes incoming copies, never the iPhone bundle's own. The retry race test waits for both contenders' decisions instead of sleeping. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:51:02 +10:00
saphidandClaude Opus 5.5	efffd72c52	Bundled KDE Connect: no copy left behind by a stop or a local read error - A start turned off while copying removes the copy instead of starting an agent that would be killed before it could tidy up. - A local read error while copying removes the partial copy too. - The retry race test holds the new start until the retry has decided, so it fails every time without the fix (checked 3/3), not by luck. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:44:02 +10:00
saphidandClaude Opus 5.5	d5e8193ce5	Bundled KDE Connect: tidy the copied packages however a start ends - Each start keeps its copy (holding a lock on it) until it ends, however it ends, then removes it; a restart can still unpack it. - The server removes a partial copy when copying fails. - Other copies are removed only when unlocked and over an hour old. - Tests: a start racing the need-packages retry (one agent, not two), a restart that must unpack its copy, a held copy surviving the sweep. Both regression tests fail without their fix. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:36:22 +10:00
saphidandClaude Opus 5.5	6765fbcb20	Bundled KDE Connect: close the races the second review found - The need-packages retry only runs if no start() has taken over, so two agents can't end up running for one session. - Each copy goes to its own incoming folder; the agent removes its own once connected (and any a cancelled start left over an hour ago), so a stopped start can't delete files another is copying or still needs. - A missing package folder means need-packages, not an error. - Tests keep fake agents running, so they check ready and which agent owns the session, plus a bounded retry and the tidy rule. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:28:10 +10:00
saphidandClaude Opus 5.5	75b2478a55	Bundled KDE Connect: fixes from review - iPhone build fails if the bundle can't be made, instead of shipping a stale archive with an empty version. - A different build that another device is using right now is left running and replaced once nobody is, rather than stopped under them. - If what's installed changed after the server looked, the agent asks for the packages (need-packages) and the server copies them and starts again. - The installed-build check sends bytes, so Windows' CRLF can't break it. - Starting again while a stopped start is still copying launches anew; concurrent copies use their own temporary names. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:18:56 +10:00
saphidandClaude Opus 5.5	5bf1268c82	Ship KDE Connect inside Frame Control instead of downloading it on the Frame The keyboard and trackpad no longer fetch KDE Connect from Valve's package repository on the Frame. The desktop apps and the iPhone app's Frame bundle carry Valve's arm64 build of kdeconnect 24.02.2-1 and the five libraries it links (kcontacts, kpeople, modemmanager-qt, pulseaudio-qt, libfakekey), pinned by SHA-256 in frame/kdeconnect/packages.json and downloaded at build time from the kdeconnect-frame-24.02.2-1 release, which also holds Valve's complete source package for each. On first use the computer copies them over its SSH connection (the iPhone bundle already has them on the Frame); the agent checks each SHA-256, unpacks them and stamps which build it is, so later starts copy nothing. No internet on the Frame, 3.6 MB instead of 8 MB, 18 MB unpacked instead of 82 MB (ModemManager and friends were packaging-only dependencies). GPL/LGPL compliance: frame/kdeconnect/NOTICE.md names each exact version, licence and source; per-project licence texts in frame/kdeconnect/LICENSES; THIRD_PARTY_NOTICES.md; an About and licences dialog in the app. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:07:20 +10:00
saphidandClaude Opus 5.5	038dcd48cd	Treat bare activity names as package-relative when matching the alias target Third review follow-up (PackageParser.buildClassName). Confirmed the targetActivity resource id 0x01010202 in Open Saber Plus's manifest. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 21:04:55 +10:00
saphidandClaude Opus 5.5	9e9e5950d0	Patch the activity the launcher alias targets, not the first MAIN filter Second review follow-up: with several activities (e.g. a splash activity ahead of the game), the alias fallback now prefers the real activity named by the alias's android:targetActivity. Reads targetActivity by resource id, updates the error text and docs/vr-apks.md. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 20:55:56 +10:00
saphidandClaude Opus 5.5	268afccf05	APK sources: shared interface for source modules Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 20:52:30 +10:00
saphidandClaude Opus 5.5	e1c0ac983c	Repair alias-only launchers for flat apps too; never fail on a VR alias Review follow-up. inspect() now returns 'repairable' and the filters it can patch: the real activity's VR MAIN filter, or, when LAUNCHER/VR sits only on an <activity-alias>, any real MAIN filter with a category to copy. install() and patch() repair on 'repairable' instead of 'vr_activity', so a flat Godot 4 export is fixed and a VR category only on the alias no longer aborts install. Tests cover both shapes, an already-launchable activity with an alias, and an end-to-end patch. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 20:40:16 +10:00
saphidandClaude Opus 5.5	077eab2b79	Add LAUNCHER to the real VR activity when only an activity-alias has it Lepton's apk-info-extractor ignores <activity-alias>, and Godot 4 exports put LAUNCHER only on an alias (com.godot.game.GodotAppLauncher). Open Saber Plus 0.7.67 installed but Lepton exited with 'APP_ACTIVITY is empty'. Count only real activities as launchable and patch the activity's VR intent filter. Verified on the Frame: Open Saber Plus launches and renders. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 20:19:38 +10:00
saphid	35ef3af54b	Merge remote-tracking branch 'origin/main' into vr-apks # Conflicts: # ui/frame_android.py # ui/index.html	2026-09-28 17:49:47 +10:00
saphidandClaude Opus 5.5	f10282294d	Fix the cross-provider review's findings on VR APK support patch() turns corrupt-manifest struct/index errors into FrameError; a missing layer build says so; the signing key falls back to a rename where hard links aren't supported and explains how to recover from a bad cached key; the layer nulls an instance it can't destroy and logs xrLocateSpaces once. Not changed: the 1.1 Meta profile names match xr.xml's promoted names (meta/touch_pro_controller, meta/touch_plus_controller), and grip_surface is palm_ext renamed, so the rewrite stays (now commented). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 17:47:35 +10:00
saphid	6217b5f2fa	Merge remote-tracking branch 'origin/main' into frame-input	2026-09-28 17:43:27 +10:00
saphidandClaude Opus 5.5	b9e31178f3	Keyboard and trackpad for the Frame, through its own KDE Connect Home → Keyboard and trackpad, in every version of Frame Control (Mac, Windows, Linux, iPhone, iPad) with nothing to install on the device in your hand. On a phone: a trackpad (drag, tap, two-finger scroll and right-click) and a field that types on the Frame. On a computer: click the pad to pass the mouse and keyboard through; Esc to stop. First-party route: ui/frame_input_agent.py runs on the Frame and talks KDE Connect's LAN protocol (v7) to kdeconnectd as if it were a phone. KDE Connect isn't on the image, but Valve's package repository has it; the agent fetches it and four libraries into ~ (no root, survives updates), starts it, pairs by itself (accepting over D-Bus), and stops it again when the last device disconnects. Each device has its own identity; a stuck KDE Connect is restarted once. Verified against the real Frame (SteamOS 0.4.1): first-time install, pairing, pointer moves from the Mac's server and the iPhone app (Simulator), Mac and iPhone at once, two installs at once, a frozen daemon replaced, and the daemon stopping when the app quits. Reviewed by GPT-6 Astra (xhigh) over seven rounds; all findings fixed except per-event delivery acknowledgement (documented known limit). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 17:42:19 +10:00
saphidandClaude Opus 5.5	50d5e14539	Inject the OpenXR compatibility layer into VR APKs on install VR apps with an arm64 OpenXR loader get frame/openxr-compat's layer unless --no-xr-compat; the app bundle ships the layer. Verified on the Frame: Wolvic's Quest build gets through OpenXR start-up, Open Brush still reaches FOCUSED. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 16:33:14 +10:00
saphid	fd15f1de4c	Merge branch 'openxr-compat' into vr-apks	2026-09-28 16:29:11 +10:00
saphidandClaude Opus 5.5	064cf95f6d	VR APK notes: Lepton's missing clipboard also stops the Godot XR Tools demo Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 16:29:11 +10:00
saphidandClaude Opus 5.5	8d75ede0ab	OpenXR compat layer: keep the current refresh rate when SteamVR refuses a request Quest apps ask for 72/90/120/144 Hz; SteamVR offers only the current rate and Wolvic aborted on XR_ERROR_DISPLAY_REFRESH_RATE_UNSUPPORTED_FB. Verified on the Frame: Wolvic's Quest build now reaches XR_SESSION_STATE_SYNCHRONIZED. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 16:29:06 +10:00
saphid	0dbe18d824	Add APK-local OpenXR 1.1 compatibility layer for Frame	2026-09-28 16:24:27 +10:00
saphid	a1bc6522c3	Detect VR APKs and repair launchers with pure Python v2 signing	2026-09-28 16:16:56 +10:00
saphidandClaude Opus 5.5	724b020e93	Document what it takes to run VR and Quest APKs in Lepton Verified on the headset: hello_xr and Open Brush's Quest build run immersively unmodified; Wolvic's Quest build needs a LAUNCHER category and fails on SteamVR's Android runtime being OpenXR 1.0 only. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-28 15:56:53 +10:00