Release 0.4.1

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.gitattributes

@@ -6,3 +6,8 @@
 *.json text eol=lf
 *.md text eol=lf
 *.bat text eol=crlf
+# Test fixtures are byte-exact (hashes, signatures): never convert line endings.
+tests/fixtures/** -text
+*.apk binary
+*.jar binary
+*.obb binary

.gitignore

@@ -6,3 +6,6 @@ compat-db/.env.lakebed.server
 compat-db/.lakebed/
 tests/smoke/results/
 mac/bin/
+
+# Downloaded at build time (frame/kdeconnect/fetch.py, app/build/fetch-deps.js)
+frame/kdeconnect/packages/

README.md

@@ -35,8 +35,8 @@ See what the headset sees, install games and Android apps, move files and text a
 <tr>
 <td width="50%" valign="top">
 
-**👓 Headset view**<br>
-Live video of what the lenses show (about 30 fps), or a still of both eyes. Zoom, pan, full screen, save as PNG.
+**👓 Headset view and Desktop**<br>
+Live video of what the lenses show, or of the app panel in use, flat and still however the wearer looks around. Turn on Control and tap or click right on it to use the Frame from your phone or computer.
 
 </td>
 <td width="50%" valign="top">
@@ -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>
@@ -90,9 +93,15 @@ SSH, SFTP, Steam Link, remote desktop, volume, sleep, restart and shut down.
 </tr>
 </table>
 
-Nothing is installed on the Frame for any of this: the app uses what SteamOS
+The optional [Family and comfort](docs/family-comfort.md) card adds session
+limits, breaks, local alerts and one-click casting. A session copies a small
+Frame Control worker into your headset user account.
+
+For the other features, nothing is installed on the Frame: the app uses what SteamOS
 already ships (sideloading a game copies Valve's own devkit scripts to
-`~/devkit-utils`, as Valve's Devkit Client does). [How each feature works](docs/frame-control.md).
+`~/devkit-utils`, as Valve's Devkit Client does). The optional
+[performance HUD](docs/vr-utilities.md) copies our own Python helpers into
+`~/.local/share/frame-control/vr/`. [How each feature works](docs/frame-control.md).
 
 ## Install
 
@@ -206,7 +215,7 @@ Frame's software fits together, all checked against a real headset and labelled
 | [Android apps (Lepton)](docs/apks.md) | Sideloading, the rated F-Droid catalogue, per-app instances |
 | [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 |
+| [VR comfort and HUD](docs/vr-utilities.md) · [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 |
 | [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 +260,7 @@ 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.

THIRD_PARTY_NOTICES.md

@@ -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.

app/build/fetch-deps.js

@@ -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); });

app/main.js

@@ -1,7 +1,7 @@
 // Frame Control as a desktop app (macOS, Windows, Linux): starts ui/server.py on
 // a free loopback port and shows it in a native window. The server does all the
 // work over the `frame` SSH alias; this file only hosts it.
-const { app, BrowserWindow, Menu, clipboard, dialog, ipcMain, shell } = require("electron");
+const { app, BrowserWindow, Menu, Notification, clipboard, dialog, ipcMain, nativeImage, shell } = require("electron");
 const { execFile, spawn } = require("child_process");
 const { promisify } = require("util");
 const fs = require("fs");
@@ -149,7 +149,7 @@ async function startServer() {
   const target = `http://127.0.0.1:${port}/`;
   for (let i = 0; i < 100; i++) {
     if (exited !== null) throw new Error(`The server exited (${exited}). See ${LOG}.`);
-    if (await ping(target)) { url = target; return; }
+    if (await ping(target)) { url = target; serverStarted = Date.now(); return; }
     await new Promise((r) => setTimeout(r, 100));
   }
   if (server === child) server = null;
@@ -159,51 +159,76 @@ async function startServer() {
 
 // Closing stdin lets server.py close its SSH connections and exit (the only clean
 // way on Windows); SIGTERM does the same elsewhere.
+// Resolves once it has exited (or after 20 s), so a replacement can take the server
+// lock: server.py allows one per user.
 function endServer(child) {
+  const gone = child.exitCode !== null || child.signalCode !== null ? Promise.resolve()
+    : new Promise((resolve) => child.once("exit", resolve));
   try { child.stdin.end(); } catch {}
   if (!IS_WIN) child.kill("SIGTERM");
-  setTimeout(() => { if (child.exitCode === null && child.signalCode === null) child.kill(); }, 5000).unref();
+  // server.py ignores a second SIGTERM while it shuts down, so the fallback is a hard kill.
+  setTimeout(() => { if (child.exitCode === null && child.signalCode === null) child.kill("SIGKILL"); }, 12000).unref();
+  return Promise.race([gone, new Promise((resolve) => setTimeout(resolve, 20000).unref())]);
 }
 
 function stopServer() {
   if (server) endServer(server);
 }
 
-function errorPage(message) {
+function errorPage(message, title = "Frame Control couldn't start") {
   const esc = (s) => s.replace(/[&<>]/g, (c) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;" }[c]));
   const html = `<!doctype html><meta charset="utf-8"><body style="margin:0;height:100vh;display:grid;
     place-items:center;background:${BG};color:#e6edf3;font:14px -apple-system,sans-serif">
-    <div style="max-width:560px;padding:32px;line-height:1.5"><h2>Frame Control couldn't start</h2>
-    <p>${esc(message)}</p><p style="color:#8b98a8">Fix it, then choose Frame → Restart Server.</p></div>`;
+    <div style="max-width:560px;padding:32px;line-height:1.5"><h2>${esc(title)}</h2>
+    <p>${esc(message)}</p>
+    <p><button onclick="this.disabled = true; frameApp.restartServer()" style="font:inherit;padding:6px 16px;
+      border-radius:6px;border:1px solid #30363d;background:#21262d;color:inherit;cursor:pointer">Try Again</button></p>
+    <p style="color:#8b98a8">Frame → Restart Server does the same.</p></div>`;
   return "data:text/html;charset=utf-8," + encodeURIComponent(html);
 }
 
+// A server that had been running starts again by itself (something stopped it: a
+// signal, a crash). One that stops again within a minute shows the error instead,
+// so a server that can't stay up doesn't restart forever.
+let serverStarted = 0;
 function serverDied(why) {
   url = null;
-  if (win) win.loadURL(errorPage(`The server stopped unexpectedly (${why}). See ${LOG}.`));
+  if (!win) return;
+  if (Date.now() - serverStarted > 60000) restartServer();
+  else win.loadURL(errorPage(`Its server stopped unexpectedly (${why}). See ${LOG}.`, "Frame Control stopped"));
 }
 
-async function restartServer() {
-  const old = server;
-  server = null;
-  url = null;
-  if (old) endServer(old);
-  await load();
+// Restarts that overlap share one: two could each start a server, and the one
+// that lost the lock would leave the app pointing at nothing.
+let restarting = null;
+function restartServer() {
+  if (!restarting) {
+    restarting = (async () => {
+      const old = server;
+      server = null;
+      url = null;
+      if (old) await endServer(old);
+      if (starting) await starting.catch(() => {});  // a start it cut short: then start afresh
+      await load();
+    })().finally(() => { restarting = null; });
+  }
+  return restarting;
 }
 
 // On macOS the page's sticky header becomes the title bar, clear of the traffic lights.
 const CHROME_CSS = IS_MAC && `
   header { padding-left: 92px !important; -webkit-app-region: drag; user-select: none; }
-  header a, header button, header input, header .chip { -webkit-app-region: no-drag; }
+  header a, header button, header input, header select, header .chip { -webkit-app-region: no-drag; }
 `;
 
 // Restart Server can start a new load while an older one is still waiting for
 // its server; only the newest load may touch the window.
 let loadGen = 0;
+let starting = null;  // loads that overlap share one server start
 async function load() {
   const gen = ++loadGen;
   try {
-    if (!url) await startServer();
+    if (!url) await (starting ||= startServer().finally(() => { starting = null; }));
     if (gen === loadGen && win) { await win.loadURL(url); firstRunCheck(); }
   } catch (e) {
     if (gen === loadGen && win) await win.loadURL(errorPage(e.message));
@@ -247,12 +272,81 @@ function fromUi(e) {
   } catch { return false; }
 }
 
+// The error page's Try Again button. The error page is the only data: page the window
+// shows (`url` can still be set then: the server answered but the page failed to load).
+ipcMain.handle("server:restart", (e) => {
+  if (win && e.sender === win.webContents && e.senderFrame && e.senderFrame.url.startsWith("data:")) restartServer();
+});
 ipcMain.handle("clipboard:read", (e) => fromUi(e) ? clipboard.readText() : "");
+// A PNG or JPEG (a screenshot) onto the clipboard as an image.
+ipcMain.handle("clipboard:writeImage", (e, bytes) => {
+  if (!fromUi(e) || !(bytes instanceof Uint8Array)) return false;
+  const img = nativeImage.createFromBuffer(Buffer.from(bytes));
+  if (img.isEmpty()) throw new Error("not an image");
+  clipboard.writeImage(img);
+  return true;
+});
 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(); });
 
+// The page reports the headsets it knows (the server's Devices tab), so the Frame
+// menu can switch between them. Only plain names and ids go into the menu.
+const ALIAS_RE = /^[A-Za-z0-9][A-Za-z0-9._-]{0,63}$/;
+let devices = [];
+ipcMain.on("devices:changed", (e, list) => {
+  if (!fromUi(e) || !Array.isArray(list)) return;
+  const next = list.slice(0, 20).filter(d => d && typeof d.id === "string" && ALIAS_RE.test(d.alias || ""))
+    .map(d => ({ id: d.id.slice(0, 80), name: String(d.name || d.alias).slice(0, 60), alias: d.alias, active: !!d.active }));
+  if (JSON.stringify(next) === JSON.stringify(devices)) return;
+  devices = next;
+  buildMenu();
+});
+const activeAlias = () => (devices.find(d => d.active) || {}).alias || FRAME;
+
+// SSH through the server, so it goes to the headset and address the app is using
+// (with its own pinned identity), and refuses when there's none.
+function openSsh() {
+  if (!url) return dialog.showErrorBox("Couldn't open SSH", "Frame Control's server isn't running.");
+  const body = JSON.stringify({ what: "terminal" });
+  const req = http.request(new URL("/api/open", url), {
+    method: "POST", timeout: 15000,
+    headers: { "Content-Type": "application/json", "X-Frame-UI": "1", "Content-Length": Buffer.byteLength(body) },
+  }, (res) => {
+    let data = "";
+    res.on("data", (c) => { data += c; });
+    res.on("end", () => {
+      if (res.statusCode === 200) return;
+      let why = `HTTP ${res.statusCode}`;
+      try { why = JSON.parse(data).error || why; } catch {}
+      dialog.showErrorBox("Couldn't open SSH", why);
+    });
+  });
+  req.on("error", (e) => dialog.showErrorBox("Couldn't open SSH", e.message));
+  req.on("timeout", () => req.destroy(new Error("the server didn't answer")));
+  req.end(body);
+}
+function showDevices() {
+  if (win && url) win.webContents.executeJavaScript('location.hash = "devices"').catch(() => {});
+}
+
+ipcMain.handle("comfort:notify", (e, message) => {
+  if (!fromUi(e) || typeof message !== "string" || message.length > 500) throw new Error("Invalid notification");
+  if (!Notification.isSupported()) throw new Error("System notifications are unavailable");
+  return new Promise((resolve, reject) => {
+    const notification = new Notification({title: "Frame Control", body: message});
+    const timer = setTimeout(() => reject(new Error("Notification delivery was not confirmed. Check system notification settings.")), 5000);
+    notification.once("show", () => { clearTimeout(timer); resolve(true); });
+    notification.once("failed", (_event, error) => {
+      clearTimeout(timer);
+      reject(new Error("Notification delivery failed. Check system notification settings: " + error));
+    });
+    notification.show();
+  });
+});
+
 // frame-control://install links from websites (docs/web-install.md). They can
 // arrive before the window or server exists (macOS open-url on a cold launch),
 // so they wait here until the page asks for them. The page checks the link with
@@ -375,7 +469,7 @@ function createWindow() {
     title: "Frame Control", backgroundColor: BG, show: false,
     ...(IS_MAC ? { titleBarStyle: "hiddenInset", trafficLightPosition: { x: 18, y: 26 } }
                : { icon: path.join(__dirname, "build", "icon.png") }),
-    webPreferences: { contextIsolation: true, nodeIntegration: false, sandbox: true,
+    webPreferences: { contextIsolation: true, nodeIntegration: false, sandbox: true, backgroundThrottling: false,
                       preload: path.join(__dirname, "preload.js") },
   });
   win.once("ready-to-show", () => win.show());
@@ -409,13 +503,14 @@ async function runInTerminal(argv) {
   }
 }
 
-async function setUpConnection() {
-  const alias = `FRAME_ALIAS=${FRAME}`;
+// Set Up Connection for the headset in use (or another alias, from the Devices tab).
+async function setUpConnection(name = activeAlias()) {
+  if (!ALIAS_RE.test(name)) return;
+  const alias = `FRAME_ALIAS=${name}`;
   if (IS_MAC) return runInTerminal(["env", alias, "zsh", path.join(SCRIPTS, "connect.sh")]);
   const py = python || await findPython({ ...process.env, PATH: await loginPath() });
-  const setup = [py || "python3", ...PY_FLAGS, path.join(ROOT, "ui", "frame_connect.py")];
-  // A new console inherits our environment on Windows; Linux terminals may not.
-  runInTerminal(IS_WIN ? setup : ["env", alias, ...setup]);
+  // --alias, since a new console on Windows (and some Linux terminals) doesn't get our environment.
+  runInTerminal([py || "python3", ...PY_FLAGS, path.join(ROOT, "ui", "frame_connect.py"), "--alias", name]);
 }
 
 function buildMenu() {
@@ -430,8 +525,15 @@ function buildMenu() {
     {
       label: "Frame",
       submenu: [
-        { label: "Set Up Connection…", click: setUpConnection },
-        { label: IS_MAC ? "Open SSH in Terminal" : "Open SSH in a Terminal", click: () => runInTerminal(["ssh", FRAME]) },
+        { label: "Set Up Connection…", click: () => setUpConnection() },
+        { label: IS_MAC ? "Open SSH in Terminal" : "Open SSH in a Terminal", click: openSsh },
+        { type: "separator" },
+        ...(devices.length > 1 ? [{
+          label: "Headset",
+          submenu: devices.map(d => ({ label: d.name, type: "radio", checked: d.active,
+                                       click: () => { if (win) win.webContents.send("use-device", d.id); } })),
+        }] : []),
+        { label: "Devices…", accelerator: "CmdOrCtrl+5", click: showDevices },
         { type: "separator" },
         { label: "Open in Browser", click: () => url && shell.openExternal(url) },
         { label: "Restart Server", click: () => win ? restartServer() : createWindow() },

app/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "frame-control",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "frame-control",
-      "version": "0.4.0",
+      "version": "0.4.1",
       "license": "MIT",
       "devDependencies": {
         "electron": "^44.4.5",

app/package.json

@@ -1,7 +1,7 @@
 {
   "name": "frame-control",
   "productName": "Frame Control",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "description": "Desktop app for managing a Valve Steam Frame over SSH",
   "private": true,
   "main": "main.js",
@@ -48,9 +48,18 @@
         "filter": [
           "*.py",
           "*.html",
+          "*.js",
           "telemetry.json"
         ]
       },
+      {
+        "from": "../ui/apk_sources",
+        "to": "ui/apk_sources",
+        "filter": [
+          "*.py",
+          "*.json"
+        ]
+      },
       {
         "from": "../scripts",
         "to": "scripts",
@@ -63,7 +72,16 @@
         "to": "frame/android",
         "filter": [
           "*.sh",
-          "*.py"
+          "*.py",
+          "*.js"
+        ]
+      },
+      {
+        "from": "../frame/openxr-compat",
+        "to": "frame/openxr-compat",
+        "filter": [
+          "XrApiLayer_FRAME_compat.json",
+          "prebuilt/**/*.so"
         ]
       },
       {
@@ -74,6 +92,16 @@
           "!**/__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 +124,14 @@
         "filter": [
           "**/*"
         ]
+      },
+      {
+        "from": "../THIRD_PARTY_NOTICES.md",
+        "to": "THIRD_PARTY_NOTICES.md"
+      },
+      {
+        "from": "../LICENSE",
+        "to": "LICENSE"
       }
     ],
     "mac": {

app/preload.js

@@ -2,15 +2,27 @@
 // to the Frame needs no pbpaste, PowerShell, xclip or wl-clipboard. Also tells
 // the page where a dropped file or folder lives, so a folder can be sideloaded
 // as a title without zipping it (the local server reads it from there).
-// It can open Set Up Connection when the headset can't be reached.
+// It can put a screenshot on the clipboard as an image, open Set Up Connection when
+// the headset can't be reached, and keeps the Frame menu's list of headsets up to date.
 // It also receives frame-control://install links (docs/web-install.md): only
 // what the link asked for, never an install; the page asks the user first.
 // And it passes update state both ways: see app/updater.js.
 const { contextBridge, ipcRenderer, webUtils } = require("electron");
 
 contextBridge.exposeInMainWorld("frameApp", {
+  notify: (message, request) => ipcRenderer.invoke("comfort:notify", message, request),
   readClipboard: () => ipcRenderer.invoke("clipboard:read"),
+  writeImage: (bytes) => ipcRenderer.invoke("clipboard:writeImage", bytes),
   setUpConnection: () => ipcRenderer.invoke("connection:setup"),
+  restartServer: () => ipcRenderer.invoke("server:restart"),  // the "couldn't start" page's Try Again
+  // The Frame menu's headset switcher: the page tells it the headsets, and hears picks.
+  devicesChanged: (list) => ipcRenderer.send("devices:changed", list),
+  onUseDevice: (cb) => {
+    ipcRenderer.removeAllListeners("use-device");
+    ipcRenderer.on("use-device", (_e, id) => cb(String(id)));
+  },
+  // 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: {

docs/agents.md

@@ -168,6 +168,43 @@ on this branch (run 36421345682).
 **Verified on the same Frame/build:** both Ctrl-C and SIGTERM close the dedicated
 browser profile and SSH tunnel and remove the profile and panel log.
 
+**Verified end to end on the same Frame/build (2026-09-29), with mutations:**
+a stdio MCP client started `ui/frame_mcp.py` in its default mode (private
+backend, no API key, no prestarted server) and a human approved or rejected
+each change in the approval page in a real Chrome window:
+
+| Tool | Result on the Frame |
+|---|---|
+| `send_file` | Approved; the file arrived in `~/Downloads` with identical contents |
+| `install` | Approved; `io.github.fizzyizzy05.binary` job finished in about 35 s |
+| `panel` | Approved; gamescope listed a new panel window, and `computer_state` reported the same window ID and PID. The app rendered in that window (below) |
+| `launch` | Approved; Keep Talking and Nobody Explodes (341800) started under Proton and `computer_state` reported it as the focused app |
+| `uninstall` | Approved; app and locale removed |
+| `power` | Rejected in the page. Unapproved retries, the same token used for `uninstall`, and a retry after rejection were all refused. Nothing was powered off |
+| `send_text` | Approved, then refused because the Plasma desktop was not open (documented requirement) |
+| `keep_awake` | `status` reports the script unavailable until PR #16 lands |
+
+A separate Claude Code CLI session, with only this server configured, read
+status, `computer_state` and a headset capture, and requested an install. It
+received an approval URL and did not execute anything.
+
+The assistant opened as a Frame panel through `scripts/assistant-on-frame.py`.
+Against a loopback stub model, a send without consent made zero requests. With
+consent it made exactly one, carrying the text and a fresh Frame screenshot.
+Consent unticked itself after sending. SIGTERM removed the panel, profile, log
+and tunnel.
+
+**Not verified while unworn:** every headset capture was a uniform dark frame,
+so SteamVR's rendered view of panels and the game could not be checked; window
+captures (`xwd`) were used instead. MCP can launch a game or panel but has no
+tool to stop one: the tester stopped them over SSH. Removing an app leaves any
+runtime it pulled in; Flatpak may also remove related extensions when that
+runtime is removed by hand.
+
+![Approval page showing the exact install action](img/mcp-approval-install.png)
+
+![The installed Flatpak rendering in its own gamescope panel window](img/mcp-panel-binary.png)
+
 ![Assistant in Frame Chromium, after an opted-in request to the local test endpoint](img/assistant-panel.png)
 
 ## Computer-use coverage

docs/apk-repos.md

@@ -0,0 +1,144 @@
+# APK repositories
+
+Frame Control supports **F-Droid-format repositories**, including F-Droid,
+F-Droid archive, IzzyOnDroid and user-provided HTTPS repositories. Repository
+indexes are authenticated before their apps appear. Search lists builds with
+Android API ≤30 and arm64-v8a or no native libraries, using the same streaming
+reducer as the existing catalogue. This does not guarantee an app works in Lepton.
+
+## Formats considered
+
+| Format | Users and purpose | Support in this source |
+|---|---|---|
+| F-Droid v2 | F-Droid, IzzyOnDroid, self-hosted fdroidserver repositories; consumed by F-Droid clients including Droid-ify and Neo Store | Preferred: signed `entry.jar` authenticates `entry.json`; its SHA-256 authenticates `index-v2.json`, which supplies APK SHA-256 hashes |
+| F-Droid v1 | Older F-Droid servers and clients | Fallback: verify `index-v1.jar`, then read its signed `index-v1.json` |
+| Obtainium configurations / exports | Obtainium users share app URLs plus source-specific filters and update settings; exports can contain a list of app configuration objects | Not imported here: configurations describe how to find releases, not one signed repository index |
+| SideQuest listings / custom feeds | SideQuest's own app discovery and installation service | No interoperable signed custom-repository specification was established from the public project documentation examined; SideQuest needs its own adapter |
+| GitHub release lists | Developers publish APK assets on release pages; community lists link to projects | Not a repository standard: asset naming, build selection and publisher verification vary; handled separately from this F-Droid source |
+| Minimal JSON list | A private list could contain package, title, APK URL and SHA-256 | Deliberately not introduced: unsigned hashes downloaded alongside files do not authenticate their publisher; another bespoke signing/update protocol would duplicate F-Droid |
+
+Research references (checked 2026-09-28):
+
+- [F-Droid APIs](https://f-droid.org/docs/All_our_APIs/) and
+  [repository setup](https://f-droid.org/docs/Setup_an_F-Droid_App_Repo/).
+- [F-Droid signing keys](https://f-droid.org/docs/Release_Channels_and_Signing_Keys/)
+  and [IzzyOnDroid's repository page and fingerprint](https://apt.izzysoft.de/fdroid/).
+- [Droid-ify](https://github.com/Droid-ify/client) and
+  [Neo Store](https://github.com/NeoApplications/Neo-Store).
+- [Obtainium](https://github.com/ImranR98/Obtainium), its
+  [configuration/deep-link format](https://wiki.obtainium.imranr.dev/deep_links/),
+  and [community app configurations](https://apps.obtainium.imranr.dev/).
+- [SideQuest's public client](https://github.com/SideQuestVR/SideQuest).
+  The absence of a specification in these materials is not proof that no
+  historical or private custom-feed format exists.
+
+## Add a repository in Frame Control
+
+From the Frame Control checkout, use its source-management CLI:
+
+```sh
+python3 ui/apk_sources/fdroid.py add 'https://example.org/fdroid/repo?fingerprint=YOUR_64_HEX_CERTIFICATE_FINGERPRINT' --name 'My apps'
+python3 ui/apk_sources/fdroid.py list
+python3 ui/apk_sources/fdroid.py search SOURCE_ID 'music'
+python3 ui/apk_sources/fdroid.py download SOURCE_ID org.example.app
+python3 ui/apk_sources/fdroid.py remove SOURCE_ID
+```
+
+Replace `SOURCE_ID` with the `id` printed by `add` or `list`. `--fingerprint`
+can also supply the pin. `fdroidrepos://example.org/fdroid/repo?fingerprint=…`
+links are accepted and converted to HTTPS. Conflicting fingerprints are refused.
+A URL must identify the repository directory, not its website or an index file.
+
+Adding fetches and validates the complete index **before saving** the source.
+Without a fingerprint, Frame Control verifies the JAR signature and remembers
+its signer: trust on first use (TOFU). This establishes continuity with the
+first server response, not independent publisher identity. Obtain the published
+fingerprint through a trusted channel when possible; the store's Add a source
+form shows the pinned one ("Trusted on first use: …") so you can compare it.
+Re-adding an existing URL preserves its pin; changing it requires deliberately
+removing and re-adding it.
+
+The API for the search/server integration is in `ui/apk_sources/fdroid.py`:
+`add_repo(url, fingerprint=None, name=None)`, `remove_repo(source_id)`,
+`set_enabled(source_id, enabled)`, and `user_repos()`. The module also exposes
+`sources`, `search`, `details`, and `download` from the shared source contract.
+This change supplies the CLI and API; the integrated source-management UI is
+separate work. Built-in sources can be disabled but cannot be removed.
+
+Settings and pins live in `frame_host.data_dir('apk-repos.json')`
+(`~/Library/Application Support/Frame Control/apk-repos.json` on macOS).
+Authenticated reduced indexes and APKs live under
+`frame_host.cache_dir('apk-sources')`; indexes refresh after 24 hours. An
+expired index is still served (marked stale in the store) while it refreshes in
+the background; a failed refresh is retried after 10 minutes.
+Only the running Frame Control app prunes cached APKs (at start and after store
+downloads); the command-line tools never do.
+The existing catalogue's unverified index cache is never treated as authenticated.
+
+Rollback protection: each repository's newest accepted signed index timestamp
+is kept in `apk-repo-state.json` next to the settings, and an older index is
+refused. Once a repository has served a v2 `entry.jar`, a missing `entry.jar`
+is an error rather than a reason to fall back to `index-v1.jar`. `entry.jar`
+must be signed with SHA-2 (SHA-1 is still accepted for legacy `index-v1.jar`).
+Removing a repository clears its state.
+
+## Publish your own repository
+
+Only publish free APKs you own or have the developer's permission to distribute.
+Do not publish paid app mirrors or bypass store licences. Check distribution
+terms before adding someone else's repository; this module does not infer legal
+permission from a signature or automatically audit a repository's terms.
+
+Install a current [fdroidserver](https://f-droid.org/docs/Installing_the_Server_and_Repo_Tools/)
+and its documented Android/Java dependencies on the publishing machine, then:
+
+```sh
+mkdir my-fdroid
+cd my-fdroid
+fdroid init
+# Set repo_url in config.yml to https://example.org/fdroid/repo
+# Also set repo_name and repo_description; keep the generated signing key safe.
+cp /path/to/your-free-app.apk repo/
+fdroid update --create-metadata
+# Review the generated metadata (name, summary, licence, source and website).
+fdroid update
+```
+
+Serve the generated **repo directory** at that HTTPS URL, including APKs,
+icons, `entry.jar`, `index-v2.json` and `index-v1.jar`. Do not publish the
+private signing keystore or configuration passwords. Configure fdroidserver's
+`serverwebroot` and run `fdroid deploy` for managed publication, or copy the
+public directory with your existing deployment tool. Publish the SHA-256
+repository certificate fingerprint displayed by fdroidserver in a link such as
+`https://example.org/fdroid/repo?fingerprint=…`.
+
+Keep the repository signing key backed up: changing it breaks existing pins.
+For updates, add the new APK, edit metadata as needed, run `fdroid update` and
+publish again. Test the published URL with Frame Control's `add`, `search` and
+`download` commands. The above publisher setup is documented from fdroidserver;
+it was not executed as part of this implementation.
+
+## Verification and limits
+
+The stdlib verifier supports one RSA PKCS#1 v1.5 JAR/CMS signer with a key of
+2048–8192 bits; SHA-256/384/512 and legacy SHA-1 digest encodings are
+recognized. It checks the signer certificate pin, the signature over `.SF`,
+the whole-manifest digest, and the manifest's digest of the JSON member.
+ECDSA, DSA, RSA-PSS, multiple signers and section-only `.SF` manifests are
+rejected. Certificates are pinned identities, not validated as Web PKI chains.
+HTTPS certificates are separately checked by Python's normal TLS validation.
+
+v1 fallback occurs only when `entry.jar` returns HTTP 404 or 410. Signature,
+fingerprint, index hash, TLS and server errors never trigger an unsigned
+fallback. APKs are cached by SHA-256 and checked again before reuse. Here,
+`verified: true` means the bytes match the signed repository's APK hash; it
+is not an independent APK publisher-signature or runtime compatibility verdict.
+There is no repository timestamp rollback/expiry policy or automated signing-key
+rotation yet. An old correctly signed index can still validate.
+
+Offline fixtures exercise v2, v1, TOFU, pin changes, disabled sources, cache
+reuse, URL rejection and corruption of every signature/hash layer. On the Mac,
+the real IzzyOnDroid repository was added with its published pin, searched for
+Tiny Music Player, and its 16,520-byte APK downloaded with SHA-256
+`d7bcb24d101b04beb3394b695b24be4e2c3d6ed702f1d0e06bc4dd707f64d86a`.
+No headset connection or installation was performed.

docs/apk-sources.md

@@ -0,0 +1,103 @@
+# Developer-consented APK sources
+
+Surveyed 2026-09-28. Free access is not proof of redistribution permission or
+Frame compatibility. These adapters fetch only public publisher releases or
+link to publisher pages. They do not acquire store entitlements, defeat access
+checks, install anything, or rehost APKs. See [VR compatibility](vr-apks.md).
+
+| Source | Developer consent and automated-access position | API/feed; VR coverage | Decision |
+|---|---|---|---|
+| [itch.io](https://itch.io/docs/legal/terms) | Publishers warrant distribution rights (§4). Users may access content through the service; this is not blanket scraping permission. Main robots excludes `/game/download/`; author subdomains exclude `/*/download/`. No challenge bypass. | Public free Android RSS for `openxr` and `oculus-quest`; substantial indie VR. Server API is mostly authenticated publisher/account functionality, not a general anonymous store-download API. | Implement RSS search, artwork and page links; `downloadable: False`. The supplied free-download script follows keyed download pages excluded by robots, so it is not shipped. |
+| [GitHub releases](https://docs.github.com/en/rest/releases/releases) | Maintainers publish assets; curated repositories below establish provenance. Public hosting or an open-source topic alone does not establish rights to every uploaded binary. Use supported REST API under [API terms](https://docs.github.com/en/site-policy/github-terms/github-terms-of-service#h-api-terms), not HTML crawling. | Releases API includes APK assets and sometimes SHA-256. Topic search finds OpenXR/Quest projects. 60 unauthenticated requests/hour; authenticated user limits are generally 5,000/hour, with separate search/secondary limits. | Implement curated downloads and explicit topic discovery. Unreviewed topic results are page-only. |
+| [Uptodown](https://www.uptodown.com/aboutus) | Developer distribution program exists, but that does not prove publisher authorization for every catalog item. [Privacy policy](https://www.uptodown.com/aboutus/privacy) explicitly describes protection against automated access. General automation permission was not established. | Broad Android catalog, limited VR focus; no supported public consumer-download API established in this survey. | Page links only; no downloader. Do not infer consent from an unchanged APK signature. |
+| [APKPure](https://apkpure.com/terms) | Third-party APK catalog; individual publisher consent and automation rights were not established. Terms request returned HTTP 403; no bypass attempted. | Broad Android coverage, incidental VR; internal endpoints are not permission to automate. | Exclude automatic indexing/downloading; user may open site. |
+| [APKMirror](https://www.apkmirror.com/faq/) | Publisher-signed files and a free-app policy are not a blanket developer-consent or automation grant. FAQ request returned HTTP 403, so current terms could not be confirmed. | General Android/version archive; APK bundles often need another installer; little VR focus. No supported consumer-download API established. | Page links only, no scraping or bundle conversion. |
+| [Aptoide](https://en.aptoide.com/company/legal) | Terms define an app supplier as developer, owner or authorized distributor; user stores still require per-item provenance. API availability alone does not settle third-party access rights. | API ecosystem and general Android catalog; weak VR focus. | Defer until a publisher-owned store and its API terms can be approved. No blanket community-store downloader. |
+| [Amazon Appstore](https://developer.amazon.com/docs/app-submission/understanding-submission.html) | Official developer submissions; store account, device and license rules apply. Publisher submission APIs do not authorize public binary extraction. | Fire-device distribution; Android-device Appstore support ended in 2025; little Quest relevance. | Official product links only; no account or entitlement extraction. |
+| [PICO / ByteDance store](https://developer.picoxr.com/document/distribute) | Official publisher channel with store/device entitlements. No public unauthenticated binary-download grant established; documentation request encountered a redirect error. | Strong standalone VR; PICO builds may depend on PICO services/extensions. | Store links only. A developer's independently published GitHub/itch build can qualify separately. |
+| [Meta Horizon Store / former App Lab](https://www.meta.com/experiences/) | Official developer submissions. A free store entitlement is still an entitlement; no license bypass or authenticated store extraction. App Lab was folded into the main store in 2024. | Strongest Quest coverage; no supported anonymous APK-download API established. | Store links only; independently distributed free builds use their publisher source. |
+| [Khronos samples](https://github.com/KhronosGroup/OpenXR-SDK-Source) | Official upstream, Apache-2.0 sample; developer-published release APKs. GitHub API terms apply. | `hello_xr` Vulkan/OpenGL ES APKs; excellent OpenXR diagnostics. | Included in GitHub curated list, Vulkan variant selected. |
+| [Meta OpenXR samples](https://github.com/meta-quest/Meta-OpenXR-SDK) | Official upstream; check each sample's license. Source availability does not imply a published APK, and some samples require Meta extensions/services. | Source/build examples, inconsistent ready-made APK releases. | Link to upstream; add specific free APKs only after release/provenance review. |
+| [Godot XR demos](https://github.com/GodotVR/godot-xr-tools) | Official project source and publisher demo pages; licenses and dependencies vary by demo. | OpenXR examples on GitHub/itch. Older Godot builds can fail on Lepton's missing clipboard service. | Covered by source discovery; no compatibility promise from an OpenXR tag. |
+
+The table distinguishes observed restrictions from unknown permission. An
+unverified policy is a reason to defer automation, not a claim that a site is
+unlawful. Only the two implemented source kinds are registered by their own
+`sources()` functions; the other rows are recommendations, not new UI entries.
+
+## Adapters
+
+`ui/apk_sources/github.py` uses `github_curated.json`: Khronos `hello_xr`,
+[Open Brush](https://github.com/icosa-foundation/open-brush), and
+[SuperTux 3D](https://github.com/SgtBilko76/SuperTux-3D). These have official
+OpenXR project/release evidence, not a blanket claim of headset compatibility.
+Open Brush's compatibility evidence is recorded in [vr-apks.md](vr-apks.md).
+Open Brush and SuperTux publish the selected builds as prereleases; curated
+opt-ins preserve that label in version records. Exact APK filename patterns
+avoid downloading desktop archives or alternate non-Quest builds.
+[OpenSaberPlus](https://github.com/arpruss/OpenSaberPlus) was examined but not
+curated: GitHub reports its license as `NOASSERTION`, and current OpenXR APK
+provenance was not established in this pass.
+
+Default GitHub search is offline against this small list. Queries
+`topic:openxr`, `topic:oculus-quest`, and `topic:quest` explicitly call repository
+search. Results outside the curated list stay page-only, even if a repository
+claims an open-source license. This prevents an arbitrary tagged mirror from
+becoming a trusted downloader. Extend the curated JSON after provenance review.
+
+Set optional `FRAME_GITHUB_TOKEN` in the process environment for a higher API
+quota. Tokens are sent only to `api.github.com`, never written to the cache,
+never sent to asset hosts, and removed on redirects. The adapter does not
+read `gh` credentials automatically. Metadata is cached for one hour under
+`frame_host.cache_dir('apk-sources', 'publisher')`. A cold details request
+fetches at most ten releases. Rate-limit errors are surfaced without retry
+loops. Asset IDs and release tags are not Android version codes: metadata
+leaves the latter unknown and rejects a requested `version_code` rather than
+silently fetching a different build.
+
+`itch.py` exposes separate OpenXR and Quest feed sources, so one feed's failure
+does not suppress the other at the aggregator level. Queries filter the current
+feed window locally: this is not an exhaustive historical itch search. Only
+explicit zero-price Android entries are returned. Covers are exposed in
+`images`; absent screenshots, APK version, ABI and minimum SDK stay unknown.
+Curated GitHub entries include publisher artwork and plain-language summaries.
+Repository image URLs are pinned to inspected commits. Open Brush screenshots
+come from its README-linked Steam listing; SuperTux uses the upstream gameplay
+preview embedded in the port's README (not a headset capture). The hello_xr
+sample has a launcher icon and GitHub social banner; no published screenshot
+was found in the inspected repository/README, so its screenshot list is empty.
+Uncurated topic results use the owner's avatar and GitHub's repository social
+preview. These are repository placeholders, not app screenshots. Itch's recorded
+RSS includes only covers, so screenshot lists remain empty without page scraping. VR is
+based on curated evidence or a VR-specific feed/topic, not a compatibility claim.
+
+Downloads stream to unique temporary files, require an APK manifest entry,
+restrict HTTPS origins and redirects, and enforce a 2 GiB ceiling. `verified`
+means the downloaded SHA-256 matches GitHub's published digest. Without such a
+digest, the computed SHA-256 is returned with `verified: False`; neither value
+claims publisher-signature validation. Installation must inspect the APK as
+usual. OBBs, split APKs, paid assets and external release-body download links
+are unsupported.
+
+## Evidence and limits
+
+On this Mac, Python 3.9 downloaded the real Khronos Vulkan 1.1.63 APK through
+the GitHub adapter, matched its published SHA-256
+`f24bbe8ba6f6339fca658628868ba8189cbc33390d6ac508f69d76fb67b5fa34`, and
+`python3 ui/frame_android.py info <apk>` exited 0: package
+`org.khronos.openxr.hello_xr.vulkan`, version code 1063, minimum API 24,
+arm64-v8a present, OpenXR detected. No Frame connection or installation occurred.
+
+The itch OpenXR RSS was fetched successfully and recorded as a fixture.
+Subsequent live adapter search encountered HTTP 429; it is not claimed as a
+successful live end-to-end search. Fixture search finds Off Nominal and parses
+nine Android entries from the ten-item feed (one has only an HTML platform).
+A real itch download and APK inspection were deliberately not performed:
+robots restrictions take precedence over that requested proof. No current
+policy text is claimed verified where the table records failed access.
+
+Tests use recorded, reduced API/RSS fixtures with network access blocked in
+the new test class. They cover selection, prereleases, unknown topic results,
+paid/non-Android exclusion, URL restrictions, redirect credential removal,
+caching, rate limits, checksum mismatch, non-APK rejection and partial-file
+cleanup. See `.claude/NOTES-more-sources.md` for commands and local evidence.

docs/apks.md

@@ -331,3 +331,11 @@ because gamescope scales Lepton's surface to fit the same panel. Also unverified
 whether the settings survive the app or its Lepton instance relaunching.
 Lepton Development rebuilds its Android data on exit, so there they probably
 don't.
+
+## Expansion files and save backups
+
+SideQuest-inspired CLI helpers install local OBB files into an already-running
+app instance and back up/restore a stopped instance's private app data. See
+[SideQuest features and limits](sidequest.md) for commands, archive scope and
+verification status. These paths have offline coverage; real Frame storage and
+permissions remain unverified. They do not change APK install or launch behavior.

docs/devices.md

@@ -0,0 +1,180 @@
+# Headsets, addresses and the connection
+
+Frame Control can manage more than one Steam Frame, and each headset can be
+reached at more than one address: a LAN IP at home, another at the office, its
+mDNS name (`frame.local`), its Tailscale IP or MagicDNS name. The **Devices**
+tab (key 5) lists them, and the connection pill in the header shows what the
+app is doing to reach the one in use, step by step, as it happens.
+
+The code is in three modules, all stdlib-only Python on your computer:
+
+| Module | What it does |
+|---|---|
+| `ui/frame_devices.py` | The registry: headsets, their addresses, networks; importing and updating `~/.ssh/config`; pinned host keys |
+| `ui/frame_network.py` | Which network this computer is on, and Tailscale's state |
+| `ui/frame_link.py` | The connector: finds the headset, keeps the SSH connection, publishes each stage; the Devices API |
+
+## Headsets
+
+Each headset keeps its own SSH alias, as Set Up Connection has always written
+it: the first is `frame`, the next `frame-2`, and so on. Terminal's
+`ssh frame-2` and the helper scripts (`FRAME_ALIAS=frame-2 scripts/push.sh …`)
+work for each one.
+
+- **Nothing to migrate by hand.** On first start, the app imports every
+  `# >>> steam-frame (ALIAS) >>>` block in `~/.ssh/config` as a headset, with
+  the block's HostName as its first address. It also copies the host key your
+  `known_hosts` already trusts for that address into the headset's own
+  known_hosts file, `~/.ssh/frame-control-hosts/<id>`, so nobody is asked to trust it again.
+- **Add a headset** runs Set Up Connection (`scripts/connect.sh` on macOS,
+  `ui/frame_connect.py --alias NAME` elsewhere) in a terminal with a new alias.
+  When it writes its block, the app picks the headset up by itself. If Set Up
+  Connection runs again and finds a headset somewhere new, that address is added
+  at the top of its list.
+- **Use this headset** (or the switcher in the header, or the app's
+  **Frame → Headset** menu) moves the whole app to another headset; every panel
+  reloads from it. From that moment no command goes to the previous headset, even
+  if the new one never answers. It waits while an install is running, since an
+  install reads the SSH settings step by step.
+- **Remove** forgets a headset. Its `~/.ssh/config` block stays unless you tick
+  the box; either way it isn't imported again unless Set Up Connection changes it.
+- A plain `FRAME_ALIAS` that Set Up Connection never configured still works: the
+  app shows it as not set up and lets ssh's own config decide where it goes.
+
+## Addresses
+
+Each address has a kind (LAN, mDNS, Tailscale or Other, guessed from the address
+and changeable), an optional label, the networks it has worked on, and when it
+last worked with its round-trip time.
+
+When connecting, the app **tries all addresses at once** (TCP to the SSH port)
+and ranks them:
+
+1. addresses that worked on the network this computer is on now;
+2. mDNS names;
+3. Tailscale addresses, if Tailscale is running here;
+4. addresses not tried on this network yet;
+5. addresses that only ever worked on other networks;
+6. Tailscale addresses while Tailscale is off.
+
+Your order on the Devices tab breaks ties. The best-ranked address that answers
+wins; one that answers first waits up to 0.35 s for a better-ranked one that is
+still trying. If SSH to the winner fails in a way another address could fix
+(a different device answered there, or the link dropped), the next one that
+answered is tried. Every success records the network on that address, so next
+time on that network it's tried first.
+
+**Test now** probes every address and tries SSH on each one that answers, without
+disturbing the connection in use: "SSH works", "answered as a different
+headset", "refused this computer's key", or why it didn't answer. **Find on
+Tailscale** lists your tailnet's devices (likely headsets first, from `tailscale
+status --json`, including the Mac app's own CLI) with buttons to add their
+MagicDNS name or IP. **Find on this network** asks mDNS for SteamOS devkit
+services and checks `ALIAS.local` and `frame.local`.
+
+## Networks
+
+A network is told apart by its default gateway: the router's IP address plus its
+hardware (MAC) address, read with `route`/`arp` (macOS), `ip route`/`ip neigh`
+(Linux) or `route print`/`arp -a` (Windows). That works on wired networks, and
+on macOS 14 and later, which hides the Wi-Fi name from apps without Location
+permission. Where the system does share the Wi-Fi name, it's shown, and you can
+name any network yourself ("Home Wi-Fi") on the Devices tab.
+
+The app rereads the gateway every 5 seconds and Tailscale's state every
+30 seconds. Changing networks reconnects.
+
+## The connection, stage by stage
+
+The connector runs in the server (`frame_link.Link`) and moves through:
+
+1. **Checking this computer's network**: gateway, Wi-Fi, this computer's IP, Tailscale.
+2. **Finding the headset**: each address resolving, trying, answered in N ms,
+   no answer, refused, or can't be found.
+3. **Opening SSH** to the address that answered.
+4. **Checking the headset's identity**: the host key must match the one pinned
+   for this headset.
+5. **Logging in** as the headset's user.
+6. **Connected** via network N, address A, round trip T; or **failed** at a stage
+   with the reason in plain words and a countdown to the next try (5, 10, 20,
+   then every 30 seconds). Retry now skips the wait.
+
+Stages 3 to 5 come from following `ssh -v` as it runs. On macOS and Linux the
+connection is an SSH ControlMaster that every command shares; when it dies (the
+headset slept or left the network) the connector notices and starts again. On
+Windows, where OpenSSH can't share a connection, the same handshake runs once
+and each command then connects on its own; a command that can't reach the
+headset makes the connector start again.
+
+Once connected, every `ssh`, `scp` and `rsync` the app runs gets
+`-o HostName=<address> -o HostKeyAlias=frame-control-<id>
+-o UserKnownHostsFile=~/.ssh/frame-control-hosts/<id> -o HashKnownHosts=no -o User=… -o Port=…`. The
+alias's block in `~/.ssh/config` is also updated to the last address that
+worked (and to the user and port you set), so Terminal's `ssh frame` and the
+scripts follow. Edits to `~/.ssh/config` take a lock file
+(`~/.ssh/config.frame-control.lock`) that Set Up Connection takes too, and never
+write over a change someone else made since the app last read the file.
+
+**Host keys are pinned per headset, not per address.** Your own `known_hosts`
+is keyed by address, so a different device answering at a remembered IP (a DHCP
+lease that moved) would look like a new host there. The app keeps one known_hosts
+file per headset instead, so saving or forgetting one headset's key never touches
+another's: a different device answering at one of its
+addresses is refused, and the pill says so. A headset's first connection trusts
+the key it shows, as Set Up Connection does. After reinstalling SteamOS the
+headset has a new key; **Forget identity** on the Devices tab lets the next
+connection save the new one.
+
+## One server at a time
+
+Only one Frame Control server runs per user (a lock file, `server.lock`, in the app's
+data folder). Two would each connect, reconnect and edit the headsets on their own, and
+one could move the other's install to a different headset. A second one, say
+`scripts/frame-ui.sh` while the app is open, exits with "Frame Control is already
+running". `FRAME_CONTROL_DATA_DIR` gives a separate one, with its own headsets.
+
+## API
+
+All under the usual `/api/` guards (loopback `Host`, `X-Frame-UI` header).
+
+| Request | Returns |
+|---|---|
+| `GET /api/connection` | The connection state: `phase` (connecting, connected, failed), `device`, `network`, `stages`, `probes`, `via`, `error`, `retry_at`, `tests`, `version` |
+| `GET /api/connection/events` | The same as server-sent events, one each time it changes (the page reads it with `fetch`, since `EventSource` can't send the header) |
+| `GET /api/devices` | Headsets, the current network, known networks, the next free alias |
+| `GET /api/devices/tailscale?id=` | Tailscale peers, likely headsets first |
+| `GET /api/devices/mdns?id=` | Headsets found on this network |
+| `POST /api/devices` | `{"action": ...}`: `use`, `update` (name, user, port), `remove`, `address-add`, `address-update`, `address-remove`, `address-move`, `test`, `forget-identity`, `name-network`, `setup` (alias, optional host), `retry` |
+
+Every host, alias and user is checked against strict patterns before it's
+stored, because they end up in ssh arguments and `~/.ssh/config`; nothing goes
+through a shell.
+
+## The registry file
+
+`devices.json` in the app's data folder (`~/Library/Application Support/Frame
+Control` on macOS, `%APPDATA%\Frame Control` on Windows,
+`~/.local/share/frame-control` on Linux). It's plain JSON so the iPhone app can
+share the format later (it still connects to one host; see
+[iphone.md](iphone.md)):
+
+```json
+{"version": 1, "active": "f67f8b7e",
+ "devices": [{"id": "f67f8b7e", "name": "Steam Frame", "alias": "frame", "user": "steamos", "port": 22,
+              "identity_files": ["~/.ssh/id_ed25519_frame"],
+              "addresses": [{"host": "frame.local", "kind": "mdns", "label": "",
+                             "networks": ["n-e0998baa61"], "last_ok": 1790593550.4, "last_rtt_ms": 0.9}]}],
+ "networks": {"n-e0998baa61": {"name": "Home Wi-Fi", "ssid": null, "gateway": "192.168.1.1",
+                               "gateway_mac": "b4:fb:e4:b5:67:55", "wifi": true, "last_seen": 1790593550.0}}}
+```
+
+A network id is `n-` and the first 10 hex digits of SHA-1 of `gateway|mac`.
+
+## Tests
+
+`tests/test_devices.py`, `tests/test_network.py` and `tests/test_link.py` run
+with the other unit tests. They use a stand-in `ssh` (`tests/fakessh/ssh`) that
+prints what `ssh -v` prints and plays a ControlMaster, real sockets on this
+computer for the addresses, and temporary folders for `~/.ssh`
+(`FRAME_CONTROL_SSH_DIR`) and the app data (`FRAME_CONTROL_DATA_DIR`), so they
+never touch yours.

docs/evidence/linux-vr/2026-09-29.txt

@@ -0,0 +1,29 @@
+Locked real-Frame repeat, 2026-09-29
+SteamOS 0.4.1, BUILD_ID 20260925.6191901; aarch64.
+mkdir /tmp/frame-test.lock succeeded before installs/launches; rmdir issued after cleanup.
+Preflight battery 44%, charging; before WiVRn 46%, before ALVR 47%, cleanup 47%.
+Original Steam PID 49823 and vrserver PID 49571 present after cleanup.
+Same unmodified upstream release APKs and SHA-256s as 2026-09-28.txt.
+Installer functions loaded from a613735 before checkout was fast-forwarded to current main.
+No compatibility layer injected. Per-app immersive Lepton instances, Steam shortcut launches.
+Headset unworn. No Linux gaming host. No pairing or streaming session reached.
+
+WIVRN: selected journal lines (local +1000 prefix, Android timestamps UTC).
+Sep 29 11:03:15 frame lepton-steamlaunch-2817846116[1967]: 09-29 01:03:15.202  1153  1181 E OpenXR-Loader: Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+Sep 29 11:03:15 frame lepton-steamlaunch-2817846116[1967]: 09-29 01:03:15.210  1153  1181 I WiVRn   : [2026-09-29 01:03:15.210] [WiVRn] [info] Failed to create OpenXR instance version 1.1.58: XR_ERROR_EXTENSION_NOT_PRESENT
+Sep 29 11:03:15 frame lepton-steamlaunch-2817846116[1967]: 09-29 01:03:15.248  1153  1181 E OpenXR-Loader: Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+Sep 29 11:03:15 frame lepton-steamlaunch-2817846116[1967]: 09-29 01:03:15.256  1153  1181 I WiVRn   : [2026-09-29 01:03:15.256] [WiVRn] [info] Failed to create OpenXR instance version 1.0.58: XR_ERROR_EXTENSION_NOT_PRESENT
+Sep 29 11:03:15 frame lepton-steamlaunch-2817846116[1967]: 09-29 01:03:15.257  1153  1181 E WiVRn   : [2026-09-29 01:03:15.257] [WiVRn] [error] Error during initialization: Failed to create OpenXR instance: XR_ERROR_EXTENSION_NOT_PRESENT
+Screenshot API exit 0; 1920x1080 uniformly dark image; no client scene visible.
+
+ALVR: selected journal lines (local +1000 prefix, Android timestamps UTC).
+Sep 29 11:03:36 frame lepton-steamlaunch-2831623938[1967]: 09-29 01:03:35.553  1139  1167 E OpenXR-Loader: Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+Sep 29 11:03:36 frame lepton-steamlaunch-2831623938[1967]: 09-29 01:03:35.553  1139  1165 I RustStdoutStderr: Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+Sep 29 11:03:36 frame lepton-steamlaunch-2831623938[1967]: 09-29 01:03:35.611  1139  1167 E [ALVR NATIVE-RUST]: panicked at alvr/client_openxr/src/lib.rs:220:10:
+Sep 29 11:03:36 frame lepton-steamlaunch-2831623938[1967]: 09-29 01:03:35.611  1139  1167 E [ALVR NATIVE-RUST]: called `Result::unwrap()` on an `Err` value: ERROR_EXTENSION_NOT_PRESENT
+Screenshot API exit 0; 1920x1080 uniformly dark image; no client scene visible.
+
+Cleanup: both test app directories, compatdata, shadercache, containers and shortcuts absent.
+Capture output directory removed. No global settings changed; Steam/SteamVR not stopped.
+The shared lock was subsequently acquired by another thread (new directory timestamp 11:03:49 +1000).
+Native clients and Valve host streaming not exercised: no native build or Linux gaming host available.

docs/evidence/vr-utilities/device.json

@@ -0,0 +1,53 @@
+{
+  "date": "2026-09-28",
+  "os": {
+    "version": "0.4.1",
+    "build": "20260925.6191901",
+    "variant": "vr"
+  },
+  "performance": {
+    "compositorFps": 72.0,
+    "frameMs": 13.89,
+    "appFps": null,
+    "gpuMs": 3.07,
+    "compositorCpuMs": 0.61,
+    "cpuPercent": 40.6,
+    "gpuMHz": 903.0
+  },
+  "batteryPercent": 16,
+  "maxTempC": 73.5,
+  "ownership": [
+    {
+      "id": 1009850,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 1173510,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 1068820,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 908520,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    },
+    {
+      "id": 1494460,
+      "owned": false,
+      "installed": false,
+      "frame": 0
+    }
+  ],
+  "hudLifecycle": "open, duplicate-open, close passed before control-test pause; overlay probe removal verified",
+  "comfort": "Initial 1cm seated probe restored exactly. Later commits/readback disagreed while Frame in use; Alex paused control tests. No controls shipped."
+}

docs/evidence/vr-utilities/review.md

@@ -0,0 +1,58 @@
+# Independent review attempts — 2026-09-28
+
+Target: the implementation and evidence in
+[3fb541d](https://github.com/saphid/frame-control/commit/3fb541d) and
+[6a63a5a](https://github.com/saphid/frame-control/commit/6a63a5a), supplied as a
+frozen diff before those commits were made. No executable code changed after
+the final review snapshot.
+
+Requested model: **SWE-2 Max**, explicitly selected with `--model swe-2-max`.
+No completed verdict or model self-identification was returned. This is not a
+passed review, and there is no "no actionable findings" claim.
+
+## First attempt
+
+Launcher:
+
+```sh
+devin -p --model swe-2-max --permission-mode auto --respect-workspace-trust false --prompt-file /tmp/frame-vr-review-prompt.txt
+```
+
+The prompt required read-only review, no delegation, no edits and no Frame
+access. The reviewer inspected surrounding code, then stopped while checking
+the public OpenVR header. The tool runner reported:
+
+> warning: rejected a tool call that requires confirmation. Running in non-interactive mode.
+
+The real launcher exit status was **0**, but no verdict was returned. A zero
+process status here is not evidence that the review completed.
+
+## Tool-free retry
+
+Launcher:
+
+```sh
+devin -p --model swe-2-max --permission-mode auto --respect-workspace-trust false --prompt-file /tmp/frame-vr-review-final-prompt.txt
+```
+
+The self-contained prompt supplied the complete frozen changes, surrounding
+code, standards and locally fetched authoritative OpenVR header excerpts. It
+explicitly prohibited tools, edits, delegation and device access. This avoided
+the first attempt's permission boundary without escalating permissions.
+
+No output or verdict arrived within the fifteen-minute review window. The
+process was sent SIGTERM at 918 seconds; the shell recorded real exit status
+**143**. Findings are unavailable. Review must be completed before considering
+this partial draft ready; playspace feasibility is also still paused.
+
+## Other validation
+
+- 166 Python unit tests passed locally.
+- 8 website tests and UI JavaScript syntax passed locally.
+- Desktop and phone-width attached-preview checks passed using live telemetry;
+  paid optional install buttons were disabled, and unavailable metrics cleared.
+- [Fake-Frame CI](https://github.com/saphid/frame-control/actions/runs/36423548487/job/108931878908)
+  passed, as did Windows/Linux server tests and the main checks job. Docker was
+  unavailable locally. macOS/iOS jobs were still queued at this handoff.
+- Real-device evidence and the paused-control limitation are in
+  [VR utilities](../../vr-utilities.md).

docs/family-comfort.md

@@ -0,0 +1,122 @@
+# Family and comfort
+
+Frame Control's Home tab has a **Family and comfort** card, on desktop and
+on iPhone. No third-party notification or parental-control app is needed.
+This is Frame Control code using Python, Steam and SteamVR already on the Frame.
+
+![Family and comfort controls in the desktop app](img/comfort-desktop.png)
+
+## Sessions
+
+Set a limit of 1–240 minutes, optional break and check-in intervals, then
+**Start session**. Break and check-in intervals of 0 turn those reminders off.
+**Cancel session** cancels the timer and monitoring without changing the game.
+Cancel before starting a session with different settings.
+
+The Frame shows a one-minute warning, then opens Steam Home in its dashboard.
+**Games stay running**: save and pause before the limit. Some games pause when
+the dashboard opens; others do not. There is no kill, power-off, Steam restart,
+account restriction or parental lock. The wearer can return to the game.
+
+**Documented implementation:** the timer is a single, opt-in Python worker in
+the Frame user's account. Desktop and iPhone share its state. It keeps going
+when the companion disconnects, closes or is suspended. It exits after
+completion or cancellation (normally within five seconds). Cancellation waits
+for any in-flight SteamVR action to finish within its timeout; it is not a boot
+service. A Frame reboot invalidates the session. Suspend counts toward the
+limit, using Linux's boot-time clock. If a warning was delayed by suspend or a
+SteamVR failure, Home waits until at least a full minute after a successful
+warning. A failed Home transition remains active and retries, with an error
+shown in the companion. A stale worker is reported as unverified enforcement.
+
+## Alerts and breaks
+
+During a session, battery, overheating and check-in alerts go to connected
+companions. Break reminders and session warnings also appear on the headset.
+
+- **Low battery:** 15% or below while discharging. One alert until charging or
+  recovery to 20%, so values around 15% do not produce repeated notifications.
+- **Overheating:** a thermal zone reaches its own kernel-reported hot/critical
+  trip, or the battery reports `Overheat`. Missing sensors mean unknown, not
+  safe. These are status alerts, not medical advice or an extra thermal governor.
+- **Check in:** an alert after the chosen number of active minutes.
+- **Breaks:** a SteamVR reminder and companion notification at the chosen interval.
+
+**Inferred:** SteamVR activity levels 1 and 2 are a useful proxy for use, not
+proof someone is wearing the headset. Inactive readings reset continuous use;
+missing readings add no time. Long gaps count at most 30 seconds. Breaks and
+check-ins are distinct from the elapsed-time session limit.
+
+Click **Enable / test notifications** on each companion. iOS asks for permission;
+macOS, Windows and Linux follow their notification settings. The page also shows
+recent events and errors. Keep Frame Control open and connected for companion
+alerts. **Phone alerts are local, not push notifications:** iOS suspension,
+force-quit or a lost SSH connection prevents live delivery. Old alerts are not
+replayed as a notification burst on reconnect. Headset warnings and the session
+limit continue without the phone. A physical iPhone's background delivery has
+not been verified and is not guaranteed.
+
+## Casting
+
+**Cast headset view** starts the existing headset Live view and requests full
+screen where supported. Show that screen to people in the room, or use the
+computer/phone's own screen mirroring. It creates no new stream transport,
+public URL or LAN server. iPhone uses the inline viewer if full screen is not
+available. The image includes private content visible to the wearer.
+
+## What is installed
+
+The shared authenticated `/api/comfort` endpoint copies three bundled Python
+files to `~/.cache/frame-control/comfort/<content-hash>/`. Session state and
+locks live in `~/.local/state/frame-control/comfort/`, with a private directory
+and 0600 state file. There is no network listener or system service. Cancel a
+session before removing these directories. The iPhone's normal server still
+exits on disconnect; the explicitly started comfort worker is the exception.
+
+## Verification
+
+**Verified 2026-09-28**, SteamOS 0.4.1, build `20260925.6191901`: shipped
+`/opt/steamvr/bin/linuxarm64/vrcmd --notify TEXT` reported success for a custom
+reminder. Steam's CDP `SteamUIStore.Navigate('/library/home')` and
+`SteamClient.OpenVR.VROverlay.ShowDashboard('valve.steam.gamepadui.main')`
+opened Home while the running app ID stayed unchanged. Prior page and dashboard
+visibility were restored. Kernel hot/critical trips and SteamVR activity were
+read from the real device. No temperature or battery fault was induced.
+
+**Verified locally:** deterministic fake-Frame tests cover late warnings,
+failed warnings/Home actions, cancellation, activity gaps, thresholds, duplicate
+suppression, reboot invalidation, shared session state and the exact Home
+JavaScript. `python3 -m unittest discover -s tests` runs them. The iOS Simulator
+build tests notification content and bounds. Physical iPhone delivery and
+wearer-perceived headset notification visibility remain unverified.
+
+**Verified end to end on the same Frame:** a two-minute session with no companion
+connection for 135 seconds emitted its warning, break and check-in, then opened
+Home. The running app ID was unchanged; the test restored the previous page and
+dashboard visibility and confirmed the worker exited. Casting through the Home
+shortcut decoded the existing headset stream at 30 fps.
+
+**Verified on the iOS 26.5 Simulator:** connected to the real Frame, approved the
+notification prompt, and saw the native Frame Control test banner. Seven iOS
+tests passed.
+
+![Native test notification in the iOS Simulator](img/comfort-notification-ios.png)
+
+Desktop and 390-pixel phone layouts had no horizontal overflow.
+On macOS the development Electron app's real notification attempt was denied
+(`UNErrorDomain` 1); the bridge now returns that failure instead of reporting
+success. Successful macOS/Windows/Linux notification display remains unverified.
+
+**Verified on the real Frame:** its naturally discharging 15% battery produced
+one low-battery event during a short session; the test then cancelled the
+session. Overheating alerts use fake sensor samples in tests: the shared
+headset was not deliberately overheated.
+
+**Verified 2026-09-29 on the same Frame:** a fresh one-minute session opened
+Home more than 60 seconds after the successful warning. The test restored the
+previous page and dashboard visibility. Local regression coverage now includes
+slow notification delivery, a total Home-action timeout, failed worker startup,
+unreadable saved state, malformed activity samples and notification UX: 173
+Python tests passed. Desktop and 390-pixel layouts were checked again; system
+notification-denial guidance stayed visible across polls. Initial event history
+did not replay notifications, and only the latest new event was announced.

docs/frame-control.md

@@ -17,13 +17,16 @@ python3 ui/server.py         # anywhere: then open http://127.0.0.1:47810
 
 ## Features
 
-The window has four tabs: **Home** (headset view, status, screenshots),
+The window has five tabs: **Home** (headset view, status, screenshots),
 **Games** (installed games, sideloaded titles, getting games), **Android** (apps,
-the catalogue, display settings, reports) and **Tools** (sending files and text,
-Flatpaks, remote and power). Keys 1–4 switch between them. Files can be dropped
-anywhere in the window. When the Frame can't be reached, one banner says why in
-plain words and the app retries every few seconds, filling everything in once it
-answers. Flatpak and Android installs run in the background; the bottom bar
+the catalogue, display settings, reports), **Tools** (sending files and text,
+Flatpaks, remote and power) and **Devices** (your headsets and their addresses).
+Keys 1–5 switch between them. Files can be dropped anywhere in the window. A
+connection pill in the header always shows which headset, which network this
+computer is on, the address in use or being tried, and each step of connecting
+as it happens; click it for the whole timeline. When the Frame can't be
+reached, a banner says why in plain words, what was tried, and counts down to
+the next try, filling everything in once it answers. Flatpak and Android installs run in the background; the bottom bar
 counts them while they run.
 
 - **Headset view**: what the lenses show, as SteamVR composites it (the room,
@@ -78,10 +81,20 @@ counts them while they run.
   an SSH tunnel; see [mac-in-headset.md](mac-in-headset.md).
 - **Flatpaks**: install and remove them (quick picks: Moonlight, Firefox, VLC,
   Remmina).
+- **Devices**: several headsets, each with several addresses (LAN IPs per
+  network, its `.local` mDNS name, its Tailscale IP or MagicDNS name). The app
+  tries them all at once and learns which worked on which network. Add, edit,
+  reorder and test addresses, find a headset on Tailscale or on this network,
+  name your networks, and switch headsets. See [devices.md](devices.md).
 - **One-click tools**: SSH or SFTP in a terminal window, Steam Link, and remote
   desktop (Windows App on macOS, Remote Desktop on Windows, Remmina or FreeRDP on
-  Linux). Sleep, restart and shut down open a terminal window because SteamOS
-  asks for the sudo password over SSH.
+  Linux). Remote desktop first checks that the Frame's xrdp answers on port
+  3389 (Developer Mode turns it on). On Windows it opens a connection file for
+  user `steamos`, because `mstsc /v:` alone offers your Windows account, which
+  xrdp turns away. Accept the warning about the Frame's own certificate, then
+  sign in with the Developer Mode password. Sleep, restart and
+  shut down open a terminal window because SteamOS asks for the sudo password
+  over SSH.
 
 ## How it works
 
@@ -92,13 +105,18 @@ 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
 header, so other websites can't drive it or read captures. Everything reaches
-the headset through the `frame` SSH alias. On macOS and Linux it keeps one
+the headset through its SSH alias (`frame` for the first one), pointed at the
+address that answered with `-o HostName=` (`ui/frame_link.py`, described in
+[devices.md](devices.md)). On macOS and Linux it keeps one
 multiplexed SSH connection open, so status and each capture take about 0.3 s.
 Windows' OpenSSH can't share a connection, so there each request connects on
 its own and the app is a little slower. What differs between the three

docs/how-the-frame-works.md

@@ -38,6 +38,11 @@ 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 has its own input injection.** An EIS socket at `/run/user/1000/gamescope-0-ei` (libei 1.4.1 is on the image) offers "Gamescope Virtual Input": relative and absolute pointer, buttons, scroll, keyboard. It drives the panel that has focus in the headset, on either X display. Focus moves only with the controller's laser (or to a new panel when none has it); `gamescopectl focus_info` prints the focus state to the journal. **Verified 2026-09-29.** | [streaming.md](streaming.md#live-view-and-control-watch-a-panel-and-tap-on-it) |
+| **A panel's own pixels:** `ffmpeg -f x11grab -window_id <window> -i :<display>` captures one window (x11grab of the root is black under gamescope). Panels live on `:0` (Steam's UI, windows tagged by `panel-on-frame.sh`) or `:1` (apps Steam starts). **Verified 2026-09-29.** | Frame Control's Desktop view |
+| **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` |

docs/iphone.md

@@ -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
@@ -25,7 +26,10 @@ as its transport too), so the desktop and phone share one code path. Android
 display settings use `podman exec` into each Lepton container instead of adb,
 which the Frame doesn't have.
 
-Nothing is left running on the Frame after the phone disconnects; the copied
+The app server stops after the phone disconnects. An explicitly started
+[comfort session](family-comfort.md) keeps its timer and headset reminders running
+until the session ends or is cancelled; phone notifications require the app to
+remain connected and running. The copied
 files stay in `~/.cache/frame-control` (delete it any time).
 
 ## Pairing
@@ -107,3 +111,11 @@ running), a real sleep/restart/shut down on the Frame, and a physical iPhone.
 Debug builds have Simulator test hooks (`FRAME_TEST_HOST`, `FRAME_TEST_PAGE`,
 `FRAME_TEST_JS`, and the tunnel URL in the app's Caches folder); release builds
 don't.
+
+## Family and comfort
+
+The shared Home card sets session limits, breaks and check-ins, and offers
+**Cast headset view**. **Enable / test notifications** requests iOS notification
+permission and sends a local test. These are local notifications, not APNs push;
+iOS background suspension can interrupt phone alerts. The headset timer still
+runs. See [the behavior and verification limits](family-comfort.md).

docs/linux-vr-streaming.md

@@ -38,6 +38,33 @@ after its container exited. No headset was worn and no host was connected.
 All test app files, compatdata, shortcuts and containers were removed afterwards.
 SteamVR's original process remained running. No global settings changed.
 
+### Locked repeat, 2026-09-29 (verified)
+
+Acquired `/tmp/frame-test.lock` before installing or launching anything and
+released it after cleanup. Battery was 44% and charging at preflight, 46–47%
+during the launches, and 47% at cleanup. The SteamOS version/build was unchanged.
+
+Reinstalled and launched both original APKs in immersive Lepton instances.
+WiVRn again failed at OpenXR 1.1 and 1.0 with the missing timespec extension;
+ALVR again panicked on `ERROR_EXTENSION_NOT_PRESENT`. This repeats the
+unmodified-client test, not the newer installer's automatic compatibility-layer
+path. Neither reached a session that could be paired or exercised further.
+Fresh [journal excerpts and cleanup evidence](evidence/linux-vr/2026-09-29.txt)
+record the failures.
+
+SteamVR's screenshot API returned a 1920×1080 headset capture after each
+launch. Both are uniformly dark: [WiVRn](evidence/linux-vr/2026-09-29-wivrn.png)
+and [ALVR](evidence/linux-vr/2026-09-29-alvr.png). These images do **not** prove
+rendering or a working client. The headset was unworn; visibility, controllers,
+frame rate and motion-to-photon latency could not be judged. The explicit
+OpenXR errors, rather than the dark captures, establish the client blocker.
+
+Both test installs, app data, shader caches, shortcuts, containers and temporary
+capture files were removed. The original Steam and SteamVR process IDs were
+unchanged. No reboot, power action or global setting change was used. Native
+clients remain untested, and no Linux gaming host was available for Valve's
+streaming path. The recommendation below is unchanged.
+
 ### Relation to the VR APK branch
 
 **Documented from source:** [PR #20](https://github.com/saphid/frame-control/pull/20)

docs/mac-in-headset.md

@@ -468,3 +468,18 @@ versus on, medians of the runs, ms):
   window to the front first.
 - Ctrl stays Ctrl. On the Mac, copy is ⌘C, so use Meta+C on a keyboard paired
   with the Frame.
+
+## Switching panels and workspace limits
+
+**Tools → Panel switcher** lists open SteamVR panels, including Mac viewers.
+Use **Show** to request focus or **Open in headset** for Frame Control's own
+switcher panel. It uses SteamVR/gamescope and Chromium, with no third-party
+overlay app. [Device checks and limits](panels.md#frame-controls-panel-switcher)
+include the difference between a panel surviving a scene launch and staying
+visible over it.
+
+Saved spatial layouts are blocked on this build: the public OpenVR transform
+setter denies access to gamescope-owned panels. Reconnecting an existing viewer
+is supported; restoring its room position after a reboot is not. We do not
+save short-lived Mac window IDs or viewer access keys as if they were a durable
+workspace. See [the feasibility evidence](panels.md#saved-spatial-layouts-blocked-on-the-current-panel-route).

docs/open-questions.md

@@ -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
 

docs/panels.md

@@ -121,5 +121,171 @@ a limit on the number of floating panels.
   script needed.
 - **Inside the desktop panel**: KWin tiling (Meta+arrow keys with a Bluetooth
   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.
+- **Optional overlay tools:** Desktop+, OVR Toolkit and similar software are
+  separate from Frame Control. Public reports describe some Proton support;
+  Windows-only does not by itself prove a Frame app cannot run. Local status
+  and sources are in [VR utilities](vr-utilities.md).
+- **Our performance HUD:** Home → VR comfort and performance → Open HUD in
+  headset creates its own gamescope panel using built-in tools. It needs no
+  third-party overlay app. [Metrics and verification](vr-utilities.md).
+
+## Frame Control's panel switcher
+
+**Verified 2026-09-28**, SteamOS 0.4.1, BUILD_ID `20260925.6191901`,
+SteamVR 2.18.1: **Tools → Panel switcher** lists SteamVR's open main panels,
+including panels that are currently hidden. **Show** asks SteamVR to bring one
+forward. **Open in headset** opens the same switcher as its own panel; choose
+it again from Steam's dashboard after switching away. Refresh updates the list.
+This is a list, not thumbnail Exposé.
+
+![Frame Control's switcher rendered on the Frame](img/panel-switcher.png)
+
+This is our own Python/HTML implementation (`ui/frame_panels.py`), using the
+Frame's shipped `vrcmd` OpenVR client and gamescope. The headset page uses
+Chromium (Chromium XR when present, then system Chromium, then the existing
+Chromium Flatpak). No XSOverlay, OVR Toolkit, WayVR or other overlay application
+is needed. This dependency boundary also applies to future layout and panel
+persistence work: platform APIs and bundled libraries are fine; another app
+must not implement the feature for us.
+
+The companion runs the helper over SSH. Opening it in the headset installs a
+copy under `~/.local/share/frame-control/panels/` and starts a loopback HTTP
+server and an isolated Chromium profile. There is no startup service or global
+setting change. Close the switcher to stop its server and browser. Other
+Chromium profiles, Steam and SteamVR are left alone. If the window or runtime
+closes, use **Open in headset** again.
+
+The page carries a random, per-process access key in its URL fragment, removes
+it from the address bar, keeps it in tab session storage for page reloads, and
+sends it in a header. Panel lists and actions need
+that key; Host and Origin checks reject other sites. The key permits only
+listing panels, requesting focus and closing this switcher. Like Mac viewer
+launch tickets, it is initially readable by another process running as the
+same Frame user. Panel titles are rendered as text, never HTML. The companion
+retains its existing request guards. No Mac capture credentials cross this API.
+
+**Verified:** the real headset page rendered its panel list (image above), its
+HTTP focus request changed `GAMESCOPE_FOCUSED_APP` to `2000999030`, a request
+without the key returned HTTP 403, and Close stopped the helper and its browser.
+Opening an already running switcher requests its focus rather than creating a
+second one. The companion uses the same list/focus helper. **Unverified:** laser
+selection while wearing the headset, physical placement, and non-XR Chromium.
+The API reports that focus was *requested*: another action can take focus before
+we observe the result. Closed panels are rejected after re-enumeration.
+
+### Shared-device recheck, 2026-09-29
+
+**Verified:** the follow-up's atomic `mkdir /tmp/frame-test.lock` attempts
+failed because another thread held the lock. The existing lock was left alone;
+no applications were installed, launched or stopped in this follow-up. The last
+read-only battery check showed 62%, charging. The 180 Python and 8 website tests
+passed again locally.
+
+**Unverified in this follow-up:** the prepared browser-button test (Refresh,
+selection, reload and Close) and repeated OpenXR transition could not run under
+the shared lock. The device results elsewhere in this page are the earlier
+2026-09-28 observations, not results from this blocked recheck. In particular,
+HTTP focus is not evidence of worn-headset laser input. Follow the
+[shared-device test procedure](testing.md#headset-smoke-test) for the next run.
+
+## Saved spatial layouts: blocked on the current panel route
+
+**Verified 2026-09-28**, same build, using a temporary xterm panel with
+`STEAM_GAME=2000999031` and `FnTable:IVROverlay_028` from
+`/opt/steamvr/bin/linuxarm64/libopenvr_api.so`:
+
+| OpenVR call | Result |
+|---|---|
+| `FindOverlay("valve.steam.desktopgame.2000999031")` | Success |
+| `GetOverlayWidthInMeters` | Success, 2.67 m |
+| `SetOverlayWidthInMeters` (same width) | Success |
+| `GetOverlayTransformType` | Success, type 5 (`VROverlayTransform_DashboardTab`) |
+| `GetOverlayTransformAbsolute` | 18 (`WrongTransformType`) |
+| `SetOverlayTransformAbsolute` (identity rotation, 1.2 m up, 1.5 m forward) | 12 (`PermissionDenied`); type remained 5 |
+
+The public interface names type 5 **DashboardTab**; SteamVR's dashboard code
+places these panels through its scene graph. It owns the frame/docking
+transforms. A successful width setter does not grant permission to restore the
+position. `vrcmd --dock-overlay world <key>` dispatched a docking request but
+the dashboard logged `Failed to get SGTransform in setInitialTransformForLocation.
+Invalid transform ID`. This does not establish working world placement.
+
+**Inferred:** saving X11 pixel rectangles or Mac window IDs would not restore
+this spatial arrangement. Mac window IDs also change when an application
+reopens; viewer tickets and reconnect keys must not go into a layout file.
+The base Mac stream reconnects after a network break, but that is different
+from recreating windows and their room positions after a reboot.
+
+There is consequently no Save/Restore control yet. A durable layout needs a
+working transform restore path, stable source identity, and a fresh capture
+permission/ticket flow. The tested gamescope-owned overlay route denies that
+transform operation. A future Frame Control-owned overlay renderer, or a
+supported platform API for dashboard frame transforms, needs its own device
+proof before building layout UI. This is a blocker for the current approach,
+not a claim that all possible implementations are impossible. Reboot recovery
+was not tested: the shared headset was not rebooted.
+
+## Panels during an immersive session
+
+**Verified 2026-09-28**, same build: our Chromium switcher panel remained in
+OpenVR's overlay list before, during and after the Frame's shipped `helloxr -g
+Vulkan` sample. During the test `vrcmd --stats` identified
+`system.generated.openxr.helloxr.helloxr`, with 242 frame submissions. The test
+ended only its own sample process; no SteamVR, Steam, power or global settings
+were changed. The switcher was still selectable afterwards.
+
+This proves survival of that panel across an OpenXR scene session, **not** that
+it stayed visibly composited over the scene: OpenVR reported it `not_visible`
+before, during and after. **Verified:** calling `ShowOverlay` on our
+*gamescope-owned* switcher overlay returns 12 (`PermissionDenied`). A helper
+cannot force that panel visible using the public overlay call. Use the
+switcher/dashboard to request access to it; we do not fight the runtime with a
+repeated force-focus loop.
+
+**Verified in a second controlled run:** a live H.264 test-pattern stream from
+this checkout's Mac helper, through its own SSH tunnel and a temporary Chromium
+profile, survived the same OpenXR sample (257 scene-frame submissions). Its
+panel `2000999032` changed from `visible` before launch to `not_visible` during
+and after the scene. The Mac helper still reported the same `test` stream;
+captured frames increased from 35 to 232, with 29.5 decoded/drawn fps afterwards.
+The test did not capture personal Mac windows or inject Mac input. The sample,
+viewer, temporary profile, tunnel and Mac helper were cleaned up. This proves
+stream survival, and also shows why it must not be advertised as always visible.
+
+**Unverified:** persistent visible placement while playing a Steam-launched VR
+game, Plasma desktop and real Mac-window behavior during that launch, and worn
+headset input. Other threads were launching games and changing the runtime on
+the shared device, so those transitions were not treated as controlled evidence.
+A runtime/X-server restart can destroy the viewer windows; a network reconnect
+cannot recreate them. No “always visible during games” guarantee is shipped.
+
+## Keyboard passthrough feasibility
+
+**Verified 2026-09-28**, same build, using `FnTable:IVRTrackedCamera_006`:
+`HasCamera(0)` returned success and true. `GetCameraFrameSize` returned 100
+(`OperationFailed`), with zero dimensions, for all three public frame types
+(distorted, undistorted and maximum-undistorted), including after acquiring the
+video service. Acquisition returned success and a handle; release returned 101
+(`InvalidHandle`). The probe shut down its OpenVR client afterwards. No camera
+frames were captured and no camera settings were changed.
+
+**Documented:** the public OpenVR camera interface provides camera frame sizes,
+intrinsics, projections and streaming handles; these are prerequisites for a
+spatially aligned camera cutout. See Valve's
+[OpenVR C API](https://github.com/ValveSoftware/openvr/blob/master/headers/openvr_capi.h).
+
+**Inferred:** camera presence alone does not establish access to camera pixels.
+The failed frame-size path blocks a keyboard cutout in our current panel
+implementation. We have not established a keyboard detector or a calibrated
+camera-to-panel mapping. Built-in full-room passthrough is not proof of a
+public, selectively masked camera stream. No keyboard cutout is offered, and
+no third-party camera/overlay app is substituted for it.
+
+## 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.

docs/privacy.md

@@ -103,9 +103,18 @@ privately to Frame Control's PostHog project as a `problem_report` event, the
 same way as the analytics above, so only the maintainer can read it and
 nothing is published. It works whatever the analytics settings are, because
 the person sends it deliberately. The report has the kind, title and text you
-wrote, how to reach you if you gave it, a short reference shown after sending,
-and the diagnostics below. It has its own random id, so it isn't linked to
-your analytics events.
+wrote, a short reference shown after sending, and the diagnostics below. Your
+email address goes with it only if you tick **The maintainer may contact me
+with follow-up questions** (the report then carries `contact_followup: true`);
+it's filled in from **Contact email** below when you've agreed there. It has its own random id, so it isn't linked to
+your analytics events. With that box ticked, the address also becomes your
+**Contact email** below with follow-up questions ticked, so you remove it there
+like any other. If it's a different address from the one saved there, it
+replaces it, and update notices stop until you turn them on again (they were
+agreed for the old address); the form says so before you send. The report then also
+carries this copy's contact id and change number (`contact_id`, `contact_rev`,
+see below), so removing or changing the address later takes back the
+follow-up permission given with the report too.
 
 With **Include diagnostics** ticked (the default), the report adds:
 
@@ -128,11 +137,67 @@ The maintainer reads reports on the Frame Control dashboard in PostHog, or
 with `python3 ui/frame_report.py inbox [days]`, which uses the same personal
 API key as `frame_compat_db.py sync`.
 
+## Contact email (optional)
+
+Frame Control never needs an email address. If you'd like to leave one, there
+are two separate choices, both off until you tick them:
+
+| Choice | What it's for |
+|---|---|
+| **Email me about Frame Control updates** | Occasional notices about new releases and updates |
+| **The maintainer may contact me with follow-up questions** | Questions about problem reports you send, mostly |
+
+You're asked once, in a bar at the top of the page, after the Frame has
+connected for the first time, and never in the same visit as the first-run
+privacy notice. **No thanks** hides it for good, and it isn't
+shown again even if you ignore it. **Contact email** in **Privacy & updates**
+is where you add, change or remove the address and either choice at any time.
+
+**What's sent, and where.** The address and the two choices go privately to
+Frame Control's PostHog project, the same place as problem reports, as a
+`contact_consent` event with `email`, `updates`, `followup`, `action` (`set`
+or `withdraw`) and the common properties above. Only the maintainer can read
+that project, and nothing in it is published or shared. It's sent only when
+you save, or when you send a problem report with follow-up questions ticked,
+whatever the analytics settings are, because you chose to. With a report, the
+address and choices are saved before the report is sent and stay saved if it
+fails; like any change, they're sent as soon as PostHog can be reached. It
+carries its own random contact id, not the analytics id, so it isn't linked
+to your usage events, and a `rev` number that goes up with each change, so
+the newest choice always wins. Like everything else sent, it's listed under
+**Show what's been sent**. On this computer the address and choices are kept in
+`contact/contact.json` in Frame Control's data folder. An address is only
+kept with at least one choice ticked.
+
+**Removing it.** **Remove my email** (or clearing the address and saving)
+deletes it from this computer, including from the **Show what's been sent**
+log (in earlier contact events and problem reports), and sends a `withdraw`
+event with no address in it. The maintainer's list only uses the newest event from each copy, so from
+then on the address isn't listed for either choice. Unticking one choice
+works the same way for that choice. This also covers problem reports you sent
+from this copy with follow-up questions ticked: if your newest choice since the
+report (by change number, not the clock) no longer agrees to follow-up
+questions at that address, the maintainer's inbox shows the permission as
+withdrawn and leaves the address out. If you're offline, the change waits on
+this computer and is sent when PostHog can be reached. The earlier event
+stays in PostHog until its data retention removes it; to have it deleted
+sooner, ask the maintainer (for example in a problem report).
+
+Nothing sends email yet: this only records who agreed to what. The
+maintainer lists the addresses with
+`python3 ui/frame_report.py contacts [updates|followup]`, which uses the same
+personal API key as `inbox`.
+
 ## Turning it all off
 
 Untick the boxes, or set `DO_NOT_TRACK=1` or `FRAME_CONTROL_TELEMETRY=0` in
 the environment that starts Frame Control. A copy run from a source checkout
-never sends anything unless `FRAME_CONTROL_TELEMETRY=1` is set.
+never sends analytics unless `FRAME_CONTROL_TELEMETRY=1` is set.
+
+These switches cover the analytics above. A problem report or a contact email
+is sent only because you pressed its Send or Save button, so those still go
+when you choose to send them (a contact change saved while offline is sent
+by itself once PostHog can be reached); if you don't, nothing is sent.
 
 ## Update checks
 

docs/scripts.md

@@ -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` |

docs/sidequest.md

@@ -0,0 +1,142 @@
+# SideQuest and Frame Control
+
+Researched 2026-09-28. SideQuest is both a Quest discovery website and a desktop
+sideloading/device-management app. Its Quest labels are **not** evidence that a
+game works on Lepton: inspect the APK for arm64/OpenXR, Android API requirements,
+VrApi and Meta services (see [VR APKs](vr-apks.md)).
+
+## Features worth borrowing
+
+Desktop evidence is the public [SideQuest source at af2ac70](https://github.com/SideQuestVR/SideQuest/tree/af2ac7043db122bca3c8db18f2b58f1660e9befb),
+especially [ADB operations](https://github.com/SideQuestVR/SideQuest/blob/af2ac7043db122bca3c8db18f2b58f1660e9befb/desktop-app/src/app/adb-client.service.ts),
+[drag and drop](https://github.com/SideQuestVR/SideQuest/blob/af2ac7043db122bca3c8db18f2b58f1660e9befb/desktop-app/src/app/drag-and-drop.service.ts),
+and the [legacy repository index](https://github.com/SideQuestVR/SideQuest/blob/af2ac7043db122bca3c8db18f2b58f1660e9befb/desktop-app/src/app/packages/package.service.ts).
+Website evidence: [SideQuest](https://sidequestvr.com/) and its public Angular
+bundle `main-4MMXZRXL.js`, inspected locally without browser automation.
+No SideQuest implementation code was copied.
+
+| SideQuest feature | Frame Control before this change | Borrow? / effort |
+|---|---|---|
+| Store descriptions, screenshots, banners, trailers, ratings | F-Droid names, icons, compatibility verdicts and reports; no equivalent rich VR store | Yes, from authorised sources; medium. Search and library workers own presentation/artwork. |
+| OBB expansion-file install | APK-only install | **Implemented helper and CLI**, medium. Essential for games whose assets are separate from the APK. |
+| App-data backup/restore | Persistent instances and optional keep-data uninstall, no portable save archive | **Implemented private-data helper and CLI**, medium. Back up before updates or experiments. |
+| File manager (list, upload, download, remove) | General Send to Frame, no Android file browser | Useful later, medium; requires clear instance selection and scoped paths. |
+| Installed-app management (launch, uninstall, backup) | List, launch, stop, remove, probe | Already mostly covered. Backup added here. |
+| Update notices / account library | Compatible-version lookup; no source-aware installed update notices | Useful later, medium; needs original version code and source identity recorded on install. |
+| Custom repositories | Built-in F-Droid catalogue and compatible-version indexes | Separate user-repos worker. Legacy SideQuest source has a fixed SideQuestRepos index; arbitrary current custom-repo support was not verified. |
+| Drag-and-drop APK/OBB install | APK drag-and-drop already works | OBB backend added here; future UI can call it. UI drop wiring is not included. |
+| Tags, price, headset filters, reviews | Text search and Lepton verdicts, not Quest headset metadata | Useful, medium; search worker owns filters. Keep source headset claims distinct from tested Frame compatibility. |
+| Screenshot/video capture and streaming | Frame screenshots/VR capture already present | Reuse existing tools; do not port Quest capture commands. |
+| Device settings and ADB utilities | Frame/Android display settings, SSH and own-instance tools | Borrow selectively; Quest CPU/GPU presets and wireless-ADB setup do not map directly to Lepton. |
+
+Priority: expansion files, then save backup/restore. Rich discovery and update
+notices follow once a permitted metadata source and source/version persistence
+are available. This patch deliberately exposes CLI/backend operations, leaving
+shared UI, install(), Steam artwork and launch behavior to sibling work.
+
+## SideQuest as a source: page-only
+
+[Terms](https://sidequestvr.com/terms), “Prohibited Activities”, (i) prohibits
+copying/distributing/disclosing the Service including automated or non-automated
+“scraping”; (xi) prohibits content access through means other than those provided
+or authorised by the Service; (xii) prohibits bypassing access restrictions.
+The terms describe downloading developer-posted games through the Service, but
+do not establish permission for this third-party API integration.
+
+[robots.txt](https://sidequestvr.com/robots.txt) requests a three-second crawl
+delay and disallows `/search/`, `/user/*` and `/sideload/*`. Robots permission
+would not override the terms. The API host's robots request returned HTTP 403;
+a request for the first shared website JS chunk also returned 403. No bypass,
+account token, cookies, browser session or private endpoint was used.
+
+The homepage publishes `https://api.sidequestvr.com` and
+`https://cdn.sidequestvr.com`. The website bundle calls `searchApps(...)` and
+`getApp(id, null)`; their actual HTTP search/detail routes could not be established
+from the retrieved bundle. Do not invent endpoints. The open-source desktop
+[install flow](https://github.com/SideQuestVR/SideQuest/blob/af2ac7043db122bca3c8db18f2b58f1660e9befb/electron/app.ts)
+POSTs `{token: ...}` to `/install-from-key`. It consumes
+`data.apps[].urls[]`, with `provider` values including `APK`, `OBB`,
+`Github Release` and `Mod`, and `link_url`. This is a website-issued install-key
+flow, not evidence of an anonymous download API. It is not implemented here.
+
+`ui/apk_sources/sidequest.py` implements the shared interface conservatively:
+
+- `sources()` marks SideQuest `page_only` and explains why.
+- `search()` raises a user-readable `SourceError` with the browse URL (zero
+  limit returns no rows). It does not invent app results or report a false
+  “no matching games”. The aggregate search UI should surface this source error.
+- `details()` accepts a numeric listing id and returns its canonical page link,
+  `downloadable: False`, empty versions/tags/headsets and the `images` shape
+  `{icon: None, banner: None, screenshots: []}`. Name is explicitly a listing id;
+  unknown facts, including free/VR status, stay `None`.
+- `download()` refuses with that page link. Paid/external listings cannot be
+  downloaded by this adapter either. No downloads means no verification claim.
+
+The JSON fixture records policy evidence, **not a purported live app response**.
+No listing metadata, artwork URLs, or OBB download URLs were scraped.
+The requested real SideQuest → OpenXR APK → `frame_android.py info` test is
+**blocked by the terms**, and was not performed. No alternate source is silently
+substituted. A future integration needs SideQuest's permission or an expressly
+supported third-party API, plus recorded search/detail/download fixtures,
+free/direct-download classification, and size/hash verification. A calculated
+local SHA-256 alone must not be called publisher verification.
+
+## OBB files
+
+```sh
+python3 ui/frame_android.py install-obb org.example.game main.42.org.example.game.obb
+python3 ui/frame_android.py install-obb org.example.game main.42.org.example.game.obb patch.42.org.example.game.obb
+```
+
+Install the APK first. The named instance must already be running; the helper
+never launches an app or uses Lepton Development. It requires standard
+`main|patch.<versionCode>.<package>.obb` filenames and nonempty files, validates
+the entire batch before transfer, streams each file through SSH into that
+instance, checks its SHA-256 **inside Android**, then renames it into
+`/sdcard/Android/obb/<package>/`. `verified: True` here means transfer integrity
+against the local input, not publisher authentication. Publication is atomic per
+file, not for the whole batch; retry after a partial batch failure. Existing OBBs
+with different version codes remain. The filename version must match the game;
+the current install metadata does not expose its version code for comparison.
+Restart the game yourself after the transfer if it cached missing expansion data.
+
+Both read-only SSH attempts to the Frame timed out. Therefore the exact
+host-side `/sdcard` mapping and persistence of expansion data were **not verified**.
+`compatdata/<instance>/internal/<package>` is documented as `/data/data/<package>`;
+it must not be mistaken for `/sdcard`. Using Android's path avoids guessing a
+host layout, but device verification across restart/update is still required.
+No OBB file was installed on the Frame during this work.
+
+## Private app-data backups
+
+```sh
+python3 ui/frame_android.py stop org.example.game
+python3 ui/frame_android.py backup-data org.example.game ./game-save.tar.gz
+python3 ui/frame_android.py restore-data org.example.game ./game-save.tar.gz
+```
+
+Keep the instance stopped throughout either operation; do not launch it from
+Steam concurrently. The remote guard fails if Podman cannot enumerate containers
+or reports that instance running. The helpers use `podman unshare` to read/write
+Android's mapped ownership without changing the live data's permissions.
+
+The archive covers **only** `compatdata/<instance>/internal/<package>`, not the
+APK, external `/sdcard/Android/data`, OBBs, keystore, or the full Android snapshot.
+It contains a package/instance manifest and regular files/directories. Backups
+are private (0600), validated before publication, and never overwrite an existing
+backup. Keep them safe: app data can contain credentials and is not encrypted.
+
+Restore checks the package and instance, rejects absolute/traversing/duplicate
+paths, links and devices, caps files at 100,000 and content at 20 GiB, and validates
+again on the Frame. It extracts into a separate directory, preserves numeric
+ownership, ordinary modes and timestamps, then swaps the private-data directory.
+Setuid/setgid bits are not restored. The previous directory remains beside it as
+`.<package>.before-restore-<timestamp>`; the returned `previous` path identifies
+it. This is an additional recovery copy, not an automatic deletion policy.
+
+Locally verified: archive round trip including recovery copy, malformed archive
+rejection, transfer command construction and failure handling. Not verified:
+real Frame UID mappings/permissions, Android app-level recovery, live FUSE OBB
+writes or persistence. Backups reject symlinks/special files; an app requiring
+those needs a separately designed backup format. These CLI features still need
+a real-device acceptance pass before being exposed as a polished UI workflow.

docs/steam-games.md

@@ -110,3 +110,11 @@ returns nothing without `cc`, so Frame Control takes the country from
 - Installing when there's more than one library folder, such as a microSD card.
 - Uninstalling. `steam://uninstall/<appid>` should open a confirmation in the
   headset.
+
+## Optional VR software
+
+The [VR utilities list](vr-utilities.md#optional-software) is separate from our
+controls and HUD. It checks software ownership as well as games; paid utilities
+are installable only when already in the loaded Frame account library. No
+purchase flow is added. Public reports, local results and ownership are shown
+separately, and untested tools remain untested.

docs/streaming.md

@@ -8,6 +8,7 @@ This covers three directions, plus input:
 - **PC VR from Linux**: [feasibility and options](linux-vr-streaming.md),
   including Valve's streaming and USB support. No Linux host tested yet.
 - **Input**: type and point in the Frame from the Mac or iPhone.
+- **Live view and Control**: watch a panel flat and tap on it to use it.
 
 The confidence labels are the same as in [ssh.md](ssh.md).
 
@@ -24,6 +25,20 @@ The confidence labels are the same as in [ssh.md](ssh.md).
 documents it. Use Windows App (RDP) when you want a proper Linux desktop on the
 Mac with keyboard, mouse, and clipboard.
 
+**Verified 2026-09-30** (Frame BUILD_ID 20260925.6191901, Windows 11 25H2,
+Remote Desktop Connection): signing in to xrdp as `steamos` with the Developer
+Mode password opens a Plasma (X11) desktop within about 6 seconds.
+
+- xrdp has no NLA, so the client shows a certificate warning (xrdp's own
+  `www.xrdp.org` certificate) and then xrdp's own login box. Frame Control
+  fills in `steamos` there on Windows, Remmina and FreeRDP.
+- The desktop is a separate login session (Xorg on display `:10`), not the
+  headset's view. It uses about 1.3 GB of the Frame's memory.
+- Closing the client leaves the session running, and the next login
+  reconnects to it. To end it over SSH, find it with `loginctl list-sessions`
+  and run `loginctl terminate-session <id>`. That doesn't touch the headset's
+  gamescope or SteamVR session.
+
 ## B. Show the Mac's desktop inside the Frame
 
 The Frame's VR streaming uses **SteamVR** on the host. Linux hosts had
@@ -45,8 +60,10 @@ 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 +130,149 @@ 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.
+- Typing through KDE Connect lands in a Chromium panel on `:1` (seen in the
+  panel's own capture, 2026-09-29). It **can't reach panels on `:0`** (Frame
+  Control's own panels, Steam's UI) and, since XTest positions are clamped to
+  `:1`'s 1280×720 root, can't reach beyond that in a bigger window. Control on
+  the live view (below) has neither limit.
+- **Not yet tested:** 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.
+
+## Live view and Control: watch a panel and tap on it
+
+**Built: Home → Desktop / Headset view → Control.** The live view has two
+sources:
+
+- **Headset view**: what the lenses show (SteamVR's mirror, `/dev/video99`). It
+  moves with the wearer's head, so Control makes the view a trackpad: drag to
+  move the pointer, tap to click, press and hold to right-click, two fingers to
+  scroll. With a mouse, moving over the view moves the pointer.
+- **Desktop**: the app panel in use in the headset, from its own window, so it
+  stays still however the wearer looks around. Control makes taps and clicks
+  land exactly where you put them. Dragging is a mouse drag, press and hold is a
+  right-click, two fingers scroll, and on a computer the mouse, wheel and
+  keyboard work directly on it (⌘ is sent as Ctrl on a Mac). A picker shows any
+  other panel, view only.
+
+Below the view, a text field and key buttons type on the Frame from a phone.
+
+How (**verified 2026-09-29**, SteamOS 0.4.1, build 20260925.6191901):
+
+- **Input goes through gamescope's own injection.** gamescope serves an EIS
+  socket (`/run/user/1000/gamescope-0-ei`; Steam feeds Remote Play input through
+  it), and `libei` 1.4.1 is on the image. [`ui/frame_touch.py`](../ui/frame_touch.py)
+  talks to it with `ctypes`: nothing to install. gamescope offers one device,
+  "Gamescope Virtual Input", with relative and absolute pointer, buttons,
+  scroll and keyboard (Linux key codes; no text capability, so the text field
+  types printable ASCII on a US layout). Its absolute region is unbounded; the
+  pointer uses the focused panel's display coordinates, and gamescope fits each
+  window to its display, so a 1920×1080 window on the 1280×720 `:1` takes
+  positions at two thirds scale. Taps on a 1280×720 page landed on the exact
+  pixel.
+- **It reaches the panel that has focus** (`GAMESCOPE_FOCUSED_WINDOW` on `:0`'s
+  root), on either X display. In the OpenVR backend focus moves only on SteamVR
+  overlay events (the controller's laser entering or clicking a panel), or to a
+  new panel when none holds it (read from gamescope's `OpenVRBackend.cpp`, seen
+  with `gamescopectl focus_info`, which writes to the journal). Neither
+  `GAMESCOPECTRL_BASELAYER_WINDOW`/`_APPID` nor X focus moves it, and no
+  gamescope command does. So Control follows the wearer: whatever they last
+  used is what your taps reach. A window without a Steam app id (`STEAM_GAME`)
+  gets a connector of its own and doesn't hold focus.
+- **Keys in a burst can arrive out of order**, so the helper paces them (8 ms
+  apart).
+- **Known limit:** if focus moves to another panel in the middle of a drag, the
+  release goes to the panel that has focus then. Whether gamescope hands it to
+  the window that got the press isn't known yet. When the session ends, the
+  helper lets go of every button and key it still holds.
+- **The Desktop picture is the window's own pixels**: `ffmpeg -f x11grab
+  -window_id <window> -i :<display>` works on gamescope's redirected windows,
+  while grabbing the root gives black. It streams as H.264 like the headset view
+  (about 30 fps at 720p).
+- Tested from the iPhone app (Simulator): a tap on the Desktop view focused a
+  text box in the panel and the text field typed into it; a trackpad move went
+  exactly (+40, +25).
+
+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:

docs/testing.md

@@ -104,6 +104,20 @@ switch while SSH is down:
 
 ## Headset smoke test
 
+**Documented shared-device procedure:** before a test installs, launches or
+stops an application, acquire `ssh frame 'mkdir /tmp/frame-test.lock'`. If it
+fails, leave that lock alone and continue offline work. Only the thread that
+acquired it releases it with `ssh frame 'rmdir /tmp/frame-test.lock'`, after
+cleanup. Keep each device session to a few minutes.
+
+Check battery capacity and charging state under `/sys/class/power_supply`
+before and after; keep capacity above 20%. Stop only processes started by the
+test, remove temporary installs and profiles, and restore the prior dashboard
+state. Leave Steam and SteamVR running. Do not reboot or change global settings.
+Record the build, actual interaction results, cleanup and any unworn-headset
+limits alongside screenshots or logs. These are caller responsibilities; the
+smoke script below does not acquire this shared lock itself.
+
 ```sh
 scripts/frame-smoke.sh           # needs `ssh frame` to work without a password
 scripts/frame-smoke.sh --pair    # also pairs a throwaway key: approve it in the headset
@@ -149,6 +163,20 @@ 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.
 
+## 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
@@ -156,3 +184,29 @@ assistant against an in-process HTTP endpoint with canned responses (no keys or
 external calls). `tests/e2e/test_agents.py` runs the MCP/HTTP/SSH path against the
 fake Frame for approved installs, clipboard and file transfer. Headset Chromium
 rendering and real screenshots still need a device; see [agent evidence](agents.md#evidence-and-limits).
+
+## Family and comfort
+
+`tests/test_comfort.py` uses an injected clock, fake headset sensor readings and
+actions, plus a Node fake of Steam's Home API. It covers warnings before Home,
+late/suspended sessions, cancellation, failed actions, duplicate alerts, reboot
+invalidation, per-zone thermal trips and shared on-headset state. The server
+guards reject invalid session settings before SSH. See
+[real-device evidence and limits](family-comfort.md#verification).
+
+## Panel switcher
+
+`tests/test_panels.py` supplies fake-Frame `vrcmd --overlays` output, checks
+main-panel filtering (including hidden panels), revalidates closed panels before
+focus, and drives the headset helper's real loopback HTTP server to test access
+keys, Host/Origin guards, malformed requests, offline errors and Close. It runs
+in the normal unit suite without OpenVR or a headset. The fixture format comes
+from SteamVR 2.18.1, BUILD_ID `20260925.6191901`; it does not simulate rendering.
+
+On the Frame, run `python3 -` over SSH with `ui/frame_panels.py` on stdin to
+list panels. `--focus <key>` rechecks the list and requests focus. In Frame
+Control, **Tools → Panel switcher → Open in headset** exercises installation,
+Chromium rendering and the same helper through HTTP. Close the switcher after
+testing. [The recorded device checks](panels.md#frame-controls-panel-switcher)
+cover actual focus, HTTP guards and an OpenXR sample transition, and separately
+identify the unverified Steam-game, spatial layout, reboot and laser behaviors.

docs/vr-apks.md

@@ -0,0 +1,274 @@
+# 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`.
+
+## In the Steam library
+
+Every successful APK install goes through the same mandatory artwork writer:
+CLI (including `scripts/install-apk.sh`), upload, catalogue, version finder,
+web download and source modules calling `frame_android.install`. Native
+Linux/Windows sideloads also use it, preserving their devkit runtime wiring.
+A new shortcut is rolled back if artwork fails; failure is never reported as
+an installed app with a blank tile.
+
+Artwork preference is **SteamGridDB → source images → generated fallback**.
+Set the optional free key in Frame Control's **Library artwork settings**, or
+`STEAMGRIDDB_API_KEY` (`FRAME_STEAMGRIDDB_API_KEY` also works). Environment
+settings override the saved key. Without a key there are no provider calls or
+warnings. Saved keys stay in host app data, mode 0600 on POSIX, and are never
+returned by the settings API or copied to the headset. Exact title matches
+(including a trailing “VR” variant) use the highest-scored returned static,
+non-NSFW image in each slot. Provider failures use the next source.
+
+Sources pass `install(apk_path, artwork={...})`: keys are `grid`, `wide`,
+`hero`, `logo`, `icon`, `banner`, `feature_graphic`, `screenshot`, or a list
+`screenshots`. Values are PNG/JPEG bytes or HTTP(S) URLs (12 MiB and
+4096×4096 pixels maximum; any PNG depth or interlace, since the Frame's
+Chromium decodes them). URLs must resolve to public addresses, follow at most
+three redirects and share one deadline per install. Any source that fails,
+for any reason, becomes a warning and generated art. Banners and feature graphics supply hero/wide art;
+screenshots are the next fallback. Source images are cached for refresh.
+All images are fitted to 600×900 portrait, 920×430 wide, 3840×1240 hero,
+1280×480 logo and 256×256 icon. Explicit logos retain transparency.
+Photo-based portrait, wide and hero slots are JPEG: Steam takes at most
+12 MiB per slot, and on the Frame (2026-09-28) a noise-heavy 3840×1240 hero
+came to more than 12 MiB as PNG, 3.7 MB as JPEG (2.7 s to render); a
+landscape photo hero 5.6 MB as PNG, 0.76 MB as JPEG (0.75 s). A render that
+still fails is retried once with generated art. Steam keeps a slot's `.png`
+and `.jpg` side by side, so each slot is cleared before it is set.
+
+Generated art uses the APK icon, a dominant-colour gradient, a blurred
+backdrop and large foreground icon with shadow. Steam's Chromium canvas and
+Motiva Sans render real text consistently regardless of the host OS; no
+Pillow, host font installation or bitmap font is needed. The hero has no
+title; the generated logo is a transparent title. APKs with no usable icon
+get a typographic monogram. The desktop package includes the renderer.
+
+Backfill installed Android apps without reinstalling or stopping them:
+
+```sh
+python3 ui/frame_android.py refresh-art org.godotengine.open_saber_plus
+python3 ui/frame_android.py refresh-art --all
+```
+
+Devkit titles installed by Frame Control have the same command,
+`python3 ui/frame_titles.py refresh-art ID|--all`. The settings panel's
+refresh covers both. The API is `POST /api/android` with
+`{"action":"refresh-art","all":true}` (apps and titles) or a `package`, and
+`POST /api/titles` with `{"action":"refresh-art","id":…}`; each returns a
+background job. Batch results retain per-item errors, and the CLIs exit
+nonzero if any failed. Apps and titles without complete artwork show **Add
+artwork** and `list` prints the command. Only entries marked `art_pending` at
+install (a title Steam registered after an install made while it wasn't
+running) are backfilled automatically, when Frame Control lists them with
+Steam running (at most every five minutes), and that backfill only fills
+slots Steam has no art for: names, icons, flags and any art the user set are
+kept. Older installs without the flag are refreshed only on request.
+
+Steam's app overviews carry no `devkit_gameid` (checked 2026-09-28, build
+20260925.6191901, on every non-Steam shortcut). A title's shortcut is found by
+its saved id, or by an executable or start folder inside
+`~/devkit-game/<id>/`, read from `appDetailsStore`; never by display name.
+That the devkit shortcut's exe/start folder sit inside the title folder is
+inferred from `docs/sideloading.md` (`proton waitforexitandrun
+"/home/steamos/devkit-game/<id>/<exe>"`), not yet seen in app details.
+Devkit titles keep the VR flag Steam gave them.
+
+**Verified on build 20260925.6191901, SteamVR 2.18.1 (2026-09-28):** both
+Open Saber Plus and SuperTux were backfilled. Steam's cached portrait, wide,
+hero and logo PNGs have the dimensions above; each shortcut points at its
+256×256 icon. This Frame client mishandles custom-art type 4 (documented as
+Icon), overwriting the wide capsule; the implementation uses custom types
+0–3 and **SetShortcutIcon** separately.
+
+Steam accepts display name, executable/start directory, icon, VR flag and
+sort-as name. Android apps join **Android**, immersive apps also **Android
+VR**; native sideloads join **Sideloaded**. Existing collection members and
+unrelated collections are preserved (both games retained **Played**).
+Dynamic/read-only collection conflicts produce warnings. The native notes
+API supports a managed **Installation details** note (package, version and
+source) while preserving other notes. Notes are keyed by sanitized shortcut
+name, so Steam itself cannot distinguish equal-name shortcut notes. No
+supported shortcut description/store-page, developer/publisher, release
+metadata or custom achievement API was found; these are not fabricated.
+
+The launcher supervises Lepton and handles TERM/INT/HUP and normal exit by
+stopping its own container and child process group. A lock refuses duplicate launches;
+a container still running while the lock is free was orphaned by a killed
+launcher and is stopped before the new launch. Lepton doesn't inherit the
+lock. Orphan recovery only stops the app's own, deterministically named
+container; a Lepton host process whose launcher was killed before it created
+the container may linger briefly. Removing an app or title still deletes its files when Steam isn't
+running; tidying Steam's collections and artwork is best effort. Steam Stop uses `TerminateApp` with the exact
+64-bit game ID string. Frame Control's Stop additionally has a direct-container
+fallback. The stable instance ID and compatdata paths remain unchanged.
+
+Lepton normally forwards the instance `SteamAppId` to Android, causing
+SteamVR to associate the scene with a different, artwork-less app. The
+launcher uses Lepton's supported `LEPTON_ENV_SteamAppId` passthrough to send
+the actual shortcut ID to Android while retaining the stable container ID.
+**Verified:** Open Saber was alive 22 seconds after Steam Play, SteamVR
+identified `steam.app.3346865537`, and its scene appeared in the headset
+capture without the previous blank Resume tile. Steam Stop then removed its
+tracked process and stopped the container. An earlier 32-second session was
+also tracked until Steam Stop. No global standby or dashboard overrides were
+installed; wear detection and other user-opened overlays still apply.
+
+**SuperTux limitation:** Steam launched and tracked it, but SDL crashed during
+activity creation because Lepton lacks `ClipboardManager`. Its container
+cleaned up on exit after about 17 seconds. Consequently sustained SuperTux
+Play/Stop and its VR scene could not be verified. This is an APK/runtime
+compatibility failure, separate from library presentation.
+
+Evidence is under `/tmp/vrlib-evidence/` on the development Mac: final artwork
+preview and three design passes, `steam-cache-final.log`,
+`steam-details-targets.json`, `opensaber-identity-session.log`,
+`opensaber-identity-headset.png`, and `supertux-lepton.log`. The preview is
+rendered artwork, not a Steam UI screenshot; CDP screenshot capture timed
+out. Authenticated SteamGridDB, Windows/Linux packaged builds and the sibling
+source-search endpoint remain unverified (the public install seam is tested).
+
+## 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.

docs/vr-utilities.md

@@ -0,0 +1,139 @@
+# VR comfort and performance
+
+Frame Control owns its HUD and telemetry. They use SteamVR/OpenVR, gamescope,
+Python and xterm already on the Frame, plus the Frame's sensors. No feature
+requires fpsVR, OVR Advanced Settings, XSOverlay or another third-party app.
+The software list is a separate, optional convenience.
+
+This is **part of [#25](https://github.com/saphid/frame-control/issues/25)**,
+not completion of the issue. Playspace controls remain blocked on the device
+checks below. The PR stays draft.
+
+## Our performance HUD
+
+On **Home → VR comfort and performance**, the app shows a timestamped sample
+with each status refresh (30 seconds, or Refresh). **Open HUD in headset**
+starts our text HUD as a gamescope panel, refreshed every two seconds. In the
+SteamVR dashboard, select **Frame Control HUD**, then Float in World or dock
+it to a controller. **Close HUD**, or closing its terminal, ends it. Opening
+it twice reuses the existing process.
+
+| Value | Meaning and source |
+|---|---|
+| Compositor FPS / period | Differences between two `IVRCompositor_029::GetFrameTiming` frame indices and monotonic compositor timestamps, sampled 200 ms apart. Output cadence, not game FPS or a long-term average. |
+| Application FPS | Reciprocal of OpenVR's client frame interval. Unavailable if there is no positive interval; not inferred from refresh rate. |
+| Render GPU time | OpenVR total render GPU milliseconds, not GPU utilisation. |
+| Compositor CPU | OpenVR compositor render CPU milliseconds, not game CPU time. |
+| System CPU | `/proc/stat` busy-time delta across the sample, with guest time counted once and iowait treated as idle. |
+| GPU clock | `3d00000.gpu/cur_freq`, converted from Hz to MHz; frequency is not load. |
+| Hottest sensor / battery | Existing thermal-zone and battery sysfs reads from `frame_status.py`. |
+
+OpenVR uses background application mode, which does not start SteamVR or keep
+it running. This mode also returned live timing in a read-only device probe.
+
+Missing sensors, a stopped or incompatible SteamVR runtime, and non-advancing
+frame indices display **Unavailable**, never invented zero FPS. Failed status
+refreshes clear the HUD card rather than keeping a stale live-looking sample.
+The HUD itself adds CPU/GPU work; it is a diagnostic, not a zero-overhead benchmark.
+
+**Verified 2026-09-28**, SteamOS 0.4.1, build `20260925.6191901`, SteamVR
+2.18.1: the exact OpenVR interface and 192-byte timing layout returned advancing
+frame indices and live GPU/CPU timing. Sensor reads, creation of overlay
+`valve.steam.desktopgame.2000250025`, duplicate-open handling, and closing the
+HUD passed. The temporary probe overlay disappeared after its process closed.
+[Sanitized device sample](evidence/vr-utilities/device.json).
+
+**Unverified:** visual placement while wearing the headset, controller docking,
+and overhead during gameplay. The companion card was checked in the attached
+preview using live Frame data. Creating an overlay does not establish that it
+was visible to the wearer.
+
+The optional HUD copies only `frame_status.py` and `frame_vr.py` into
+`~/.local/share/frame-control/vr/`. It tags only the window whose X11 PID matches
+its own xterm, avoiding other threads' windows. Stop checks both PID and Linux
+process start time before sending SIGTERM. It does not stop Steam or SteamVR,
+edit their settings, install a service, or need sudo.
+
+## Playspace, seated height and recenter: paused
+
+**Verified 2026-09-28:** SteamVR exposes `IVRChaperoneSetup_006` and
+`IVRChaperone_004`. An initial 1 cm seated zero-pose translation committed,
+read back and restored numerically. A later trial, while the shared Frame was
+in use, changed universe IDs after commits and returned transforms that did
+not match the requested write or restore. Journal entries reported
+`CommitWorkingCopy`, `VREvent_ChaperoneUniverseHasChanged` and
+`VREvent_ChaperoneRoomSetupCommitted`. The collision-bound arrays and play-area
+size matched in the saved before/after records, but the origin matrices did not.
+
+Alex confirmed the headset was in use and asked to pause control tests. No
+further playspace writes were made. The exploratory control implementation was
+removed from the shipping API; `recenter`, `adjust` and `restore` are rejected.
+This is an **unresolved feasibility check**, not evidence that OpenVR controls
+cannot work. Concurrent use and the Frame driver's coordinate-system handling
+still need to be separated.
+
+The probe's original and last-read poses remain in the Frame's
+`~/.local/share/frame-control/vr/comfort.json` for investigation. This draft
+neither reads nor applies that baseline. Do not blindly replay it into a room
+that may have changed. No recenter test was reached in the later trial.
+
+Before adding controls, on an idle Frame:
+
+1. Establish current room and tracking state, and inspect the retained probe
+   evidence before considering any restoration.
+2. Prove seated and standing height/move operations in the Frame driver's
+   current coordinates, including delayed readback, coordinate rebasing and
+   recovery. Show that the physical safety boundary stays correct.
+3. Verify recenter independently, and test a full apply/restore cycle plus a
+   concurrent room-change refusal. Add a fake OpenVR test for those contracts.
+4. Check the apparent result in a seated and a standing app before exposing UI.
+
+**Documented:** seated and standing are tracking origins selected by an app;
+changing a seated origin cannot force every game to support seated play.
+
+**Inferred from the installed SteamVR defaults:** there is no generic snap-turn
+or locomotion-vignette setting. `dashboard.verticalOffsetCm_2` and
+`steamvr.panelMaskVignette` affect panels, not the player's height or game
+locomotion. The app gives game-setting hints for snap-turn, teleport movement
+and movement vignette instead of writing these unrelated settings.
+
+## Optional software
+
+**Verified 2026-09-28 (same build):** a read-only query of Steam's loaded
+`appStore.allApps` found none of these five apps on the Frame account. The query
+includes software, which the existing games-only library filter excludes.
+Steam's public app-details API listed only Desktop+ as free. No software was
+purchased, installed or launched during these ownership checks.
+
+| Utility | Local Frame status | Public evidence / optional source |
+|---|---|---|
+| OVR Advanced Settings (1009850) | **Untested**, not owned | Steam edition is paid. Developer's [free source and releases](https://github.com/OpenVR-Advanced-Settings/OpenVR-AdvancedSettings). No verified Frame result in this work. |
+| XSOverlay (1173510) | **Untested**, not owned | Supplied research attributes Proton support with tweaks to [Road to VR](https://www.roadtovr.com/valve-steam-frame-review/). This is a public report, not our verification. |
+| OVR Toolkit (1068820) | **Untested**, not owned | Same [public Frame report](https://www.roadtovr.com/valve-steam-frame-review/); no local verification. |
+| fpsVR (908520) | **Untested**, not owned | [Steam listing](https://store.steampowered.com/app/908520/). No Frame-specific result established in the supplied research. General PC VR reviews do not verify Frame support. |
+| Desktop+ (1494460) | **Untested**, free | [Developer source](https://github.com/elvissteinjr/DesktopPlus). No verified Frame result in this work. |
+
+**Documented (supplied research):** the XSOverlay/OVR Toolkit claims are kept as
+attributed leads. **Verified source check 2026-09-28:** fetching the linked
+review returned HTTP 200 and the expected review title, but neither utility name
+appeared in the fetched HTML or extracted text. The claims could not be
+corroborated from that page; this is not proof of incompatibility. They do not make those apps dependencies or mark them
+locally verified. No paid utility is auto-acquired. A server-side check blocks
+installation through the Steam endpoint if the paid utility is absent from the
+loaded Frame library; an empty/unavailable library fails closed. Desktop+ uses
+the existing free Steam install flow, which may need a license confirmation in
+the headset. None is advertised as known-good without local evidence.
+
+Compatibility reports reuse the existing `compat-db` storage and validation
+with `package: "steam:<appid>"`, rather than colliding with Android package IDs.
+The optional list shows the latest `works`, `issues` or `broken` report with its
+date, build and notes, separately from public sources and ownership. With no
+report the status stays **untested**. No shared database schema change or
+production deployment is needed; no reports were published by this work.
+
+## Validation and review
+
+166 unit tests and 8 website tests passed locally. The new fake-Frame cases
+passed in GitHub CI (Docker was unavailable locally). Desktop and phone-width
+preview checks passed. The two independent review attempts did not produce a
+verdict; [commands, real exit statuses and limitations](evidence/vr-utilities/review.md).

docs/vr-video.md

@@ -1,81 +1,176 @@
-# 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 end to end, 2026-09-29** (same build; headset unworn): uploads
+through the HTTP API, the web UI and `scripts/push-vr-video.sh`, all played by
+the owned player. Our generated test files:
+
+| Case | Result |
+|---|---|
+| H.264 half-SBS 1920×1080 with AAC, theatre | 240/240 frames in 8.09 s; audio stream "Frame Control Media" in PulseAudio |
+| H.265 half-OU 1920×1080 | 180/180 frames in 6.03 s; red left eye, cyan right |
+| H.264 full-SBS 3840×1080, `stereo_mode=left_right` only | Detected from metadata; 150/150 frames in 5.03 s |
+| H.264 1280×720, explicit 2D | 150/150 frames in 5.02 s |
+| SBS PNG, OU JPEG (theatre) | Correct eye in each capture |
+| 3,000-Gaussian `.splat` | Rendered in about 5 s, then held until Stop |
+| 2D file on Auto, `_SBS_OU` file, HEIC, VP9 | Refused with the documented message |
+| Second Play while one runs | Refused: "Stop the current media…" |
+
+Stop always left the unit inactive, and no player process remained.
+
+**Standby (verified):** an unworn Frame turns its displays off a few seconds
+after it wakes. `SetOverlayRaw` then returns `RequestFailed` (23). The
+first run's movie died there. The player now drops frames while the headset
+is in standby, keeps the audio and its clock going, and resumes the picture
+when the headset wakes. The 8 s movie above dropped 40 frames and finished.
+Stills and the theatre surround are re-sent after waking. Five minutes
+without an accepted frame is reported as an error. Headset-view captures
+taken during standby show a flat dark frame, not our screen.
+
+![Media panel in Frame Control while a photo plays on the Frame](img/media-ui-panel.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.

frame/android/app-data.py

@@ -0,0 +1,168 @@
+"""Private-data archives, run under podman unshare on the Frame. Stdlib only."""
+import contextlib
+import json
+import os
+from pathlib import Path, PurePosixPath
+import shutil
+import sys
+import tarfile
+import tempfile
+import time
+
+MAX_BYTES = 20 * 1024 ** 3
+MAX_FILES = 100000
+MAX_MANIFEST = 1024 * 1024
+
+
+def inspect_archive(path, package, instance):
+    names, total, manifest = set(), 0, None
+    with tarfile.open(path, 'r:gz') as archive:
+        for member in archive:
+            name = member.name
+            parts = PurePosixPath(name).parts
+            if (not parts or name.startswith('/') or '..' in parts or
+                    name != '/'.join(parts) or name in names or '\\' in name):
+                raise ValueError('unsafe or duplicate archive path')
+            if name == 'data' and not member.isdir():
+                raise ValueError('data root must be a directory')
+            names.add(name)
+            if len(names) > MAX_FILES or not (member.isdir() or member.isfile()):
+                raise ValueError('archive has too many files, links or special files')
+            if member.uid < 0 or member.gid < 0 or member.uid > 65535 or member.gid > 65535:
+                raise ValueError('archive owner outside Android user namespace')
+            total += member.size
+            if total > MAX_BYTES:
+                raise ValueError('archive exceeds 20 GiB')
+            if name == 'manifest.json' and member.isfile() and member.size <= MAX_MANIFEST:
+                manifest = json.load(archive.extractfile(member))
+            elif parts[0] != 'data':
+                raise ValueError('unexpected archive member')
+        if (not isinstance(manifest, dict) or manifest.get('format') != 1 or
+                manifest.get('package') != package or manifest.get('instance') != instance or
+                'data' not in names):
+            raise ValueError('backup does not match this package and instance')
+    return {'files': len(names) - 1, 'bytes': total, 'package': package, 'instance': instance,
+            'skipped_links': manifest.get('skipped_link_count', 0)}
+
+
+def backup(root, package, instance, output):
+    import io
+    source = root / package
+    if source.is_symlink() or not source.is_dir():
+        raise ValueError('private app data does not exist or is a symlink')
+    count, total, links, skipped = 0, 0, [], 0
+
+    def checked(member):
+        nonlocal count, total, skipped
+        if member.issym():  # never followed or restored; listed in the manifest instead
+            skipped += 1
+            if len(links) < 1000:
+                links.append({'path': member.name[:512], 'target': member.linkname[:256]})
+            return None
+        if member.islnk():  # a second name for a file already archived: store its content again
+            member.type, member.linkname = tarfile.REGTYPE, ''
+            member.size = os.lstat(str(source / member.name[len('data/'):])).st_size
+        count += 1
+        total += member.size
+        if not (member.isdir() or member.isfile()) or count > MAX_FILES or total > MAX_BYTES:
+            raise ValueError('private data contains special files or exceeds backup limits')
+        return member
+
+    with tarfile.open(fileobj=output, mode='w|gz', dereference=False) as archive:
+        archive.add(str(source), arcname='data', filter=checked)
+        # Written last so that it can list what was skipped.
+        manifest = json.dumps({'format': 1, 'package': package, 'instance': instance,
+                               'skipped_links': links, 'skipped_link_count': skipped}).encode()
+        member = tarfile.TarInfo('manifest.json')
+        member.size, member.mode = len(manifest), 0o600
+        archive.addfile(member, io.BytesIO(manifest))
+
+
+def restore(root, package, instance, input_stream):
+    source = root / package
+    if source.is_symlink() or not source.is_dir():
+        raise ValueError('private app data does not exist or is a symlink')
+    with tempfile.TemporaryDirectory(prefix='.frame-restore-', dir=str(root)) as work:
+        work = Path(work)
+        archive_path = work / 'backup.tar.gz'
+        with archive_path.open('wb') as output:
+            size = 0
+            while True:
+                chunk = input_stream.read(1024 * 1024)
+                if not chunk:
+                    break
+                size += len(chunk)
+                if size > MAX_BYTES:
+                    raise ValueError('compressed backup exceeds 20 GiB')
+                output.write(chunk)
+        result = inspect_archive(archive_path, package, instance)
+        stage = work / 'stage'
+        stage.mkdir(mode=0o700)
+        with tarfile.open(archive_path, 'r:gz') as archive:
+            directories = []
+            for member in archive:
+                if member.name == 'manifest.json':
+                    continue
+                target = stage / member.name
+                if member.isdir():
+                    target.mkdir(parents=True, exist_ok=True)
+                    directories.append((target, member))
+                else:
+                    target.parent.mkdir(parents=True, exist_ok=True)
+                    with archive.extractfile(member) as src, target.open('xb') as dst:
+                        shutil.copyfileobj(src, dst, 1024 * 1024)
+                    apply_metadata(target, member)
+            for target, member in reversed(directories):
+                apply_metadata(target, member)
+        with package_lock(root, package):  # another restore of this package must not delete our copy
+            previous = root / ('.' + package + '.before-restore-' + str(time.time_ns()))
+            source.rename(previous)
+            try:
+                (stage / 'data').rename(source)
+            except BaseException:
+                previous.rename(source)
+                raise
+            # Keep only the newest pre-restore copy of this package's data.
+            for old in root.glob('.' + package + '.before-restore-*'):
+                if old != previous and not old.is_symlink():
+                    shutil.rmtree(str(old), ignore_errors=True)
+        result['previous'] = str(previous)
+        return result
+
+
+@contextlib.contextmanager
+def package_lock(root, package):
+    import fcntl
+    fd = os.open(str(root / ('.' + package + '.restore.lock')), os.O_RDWR | os.O_CREAT | os.O_NOFOLLOW, 0o600)
+    try:
+        fcntl.flock(fd, fcntl.LOCK_EX)
+        yield
+    finally:
+        os.close(fd)  # releases the lock
+
+
+def apply_metadata(path, member):
+    os.chown(str(path), member.uid, member.gid)
+    os.chmod(str(path), member.mode & 0o777)
+    os.utime(str(path), (member.mtime, member.mtime))
+
+
+def main():
+    action, package, instance = sys.argv[1:]
+    instance = int(instance)
+    root = Path.home() / '.local/share/Steam/steamapps/compatdata' / str(instance) / 'internal'
+    if root.is_symlink() or root.resolve() != root.absolute():
+        raise ValueError('private-data directory traverses a symlink')
+    if action == 'backup':
+        backup(root, package, instance, sys.stdout.buffer)
+    elif action == 'restore':
+        print(json.dumps(restore(root, package, instance, sys.stdin.buffer)))
+    else:
+        raise ValueError('unknown app-data action')
+
+
+if __name__ == '__main__':
+    try:
+        main()
+    except (OSError, ValueError, tarfile.TarError) as error:
+        sys.exit(str(error))

frame/android/lepton-app.sh

@@ -19,6 +19,25 @@ done
 
 # A number that isn't a real Steam app; it names this app's Lepton context.
 export SteamAppId="$(cat "$DIR/instance.id")"
+[[ "$SteamAppId" =~ ^[0-9]+$ ]] || { echo "invalid instance.id" >&2; exit 1; }
+# Keep the stable Lepton context, but identify the Android VR client as its
+# actual Steam shortcut. Lepton applies LEPTON_ENV_* after its own passthrough.
+if [[ -f "$DIR/shortcut.id" ]]; then
+  shortcut="$(cat "$DIR/shortcut.id")"
+  [[ "$shortcut" =~ ^[0-9]+$ ]] || { echo "invalid shortcut.id" >&2; exit 1; }
+  export LEPTON_ENV_SteamAppId="$shortcut"
+fi
+exec 9>"$DIR/launch.lock"
+flock -n 9 || { echo "Android app is already running" >&2; exit 1; }
+CONTAINER="lepton-steamlaunch-$SteamAppId"
+# Holding the lock means no launcher owns a running container: it was orphaned
+# (this script SIGKILLed), so stop it rather than refuse every later Play. The
+# name is this app's alone. A Lepton host process whose launcher was killed
+# before it made the container may linger briefly; nothing else is killed.
+if [[ "$(podman inspect --format '{{.State.Running}}' "$CONTAINER" 2>/dev/null || true)" == true ]]; then
+  echo "Stopping orphaned $CONTAINER" >&2
+  podman stop -t 5 "$CONTAINER" >/dev/null 2>&1 || true
+fi
 export STEAM_COMPAT_INSTALL_PATH="$DIR"
 # Must be under ~/.local/share/Steam: only that tree is mounted in the container.
 export STEAM_COMPAT_DATA_PATH="$HOME/.local/share/Steam/steamapps/compatdata/$SteamAppId"
@@ -29,4 +48,29 @@ mkdir -p "$STEAM_COMPAT_DATA_PATH" "$STEAM_FOSSILIZE_DUMP_PATH"
 # Lepton's setpgid --foreground re-exec needs a terminal that Steam shortcuts
 # and SSH don't have; give it its own session instead.
 export IS_PARENT=true
-exec setsid --wait "$LEPTON" waitforexitandrun -- "$DIR/app.apk"
+# Keep this shell in Steam's process tree; setsid alone has no container cleanup.
+child=""
+cleanup() {
+  trap '' TERM INT HUP
+  if [[ -n "$child" ]]; then
+    kill -TERM -- "-$child" 2>/dev/null || true
+    kill -TERM "$child" 2>/dev/null || true
+  fi
+  podman stop -t 5 "$CONTAINER" >/dev/null 2>&1 || true
+  if [[ -n "$child" ]]; then
+    kill -KILL -- "-$child" 2>/dev/null || true
+    kill -KILL "$child" 2>/dev/null || true
+    wait "$child" 2>/dev/null || true
+  fi
+}
+trap cleanup EXIT
+trap 'exit 143' TERM
+trap 'exit 130' INT
+trap 'exit 129' HUP
+# 9>&-: the lock is this launcher's alone; Lepton's tree mustn't keep it held.
+setsid --wait "$LEPTON" waitforexitandrun -- "$DIR/app.apk" 9>&- &
+child=$!
+rc=0
+wait "$child" || rc=$?
+child=""
+exit "$rc"

frame/android/library_artwork.js

@@ -0,0 +1,146 @@
+// Runs in Steam's Chromium context: identical fonts/rendering from every host OS.
+async function renderLibraryArtwork(input) {
+  const sizes = {grid:[600,900], wide:[920,430], hero:[3840,1240], logo:[1280,480], icon:[256,256]};
+  const label = String(input.label || 'Untitled').trim().slice(0,180);
+  const font = '"Motiva Sans", "Noto Sans", Arial, sans-serif';
+  await document.fonts.load(`800 120px ${font}`, label);
+  const images = {}, warnings = [];
+  for (const [slot, item] of Object.entries(input.images || {})) {
+    try {
+      const img = new Image();
+      img.src = `data:image/${item[0]};base64,${item[1]}`;
+      await img.decode();
+      if (!img.width || !img.height || img.width*img.height > 16777216) throw Error('dimensions');
+      images[slot] = img;
+    } catch (_) { warnings.push(`${slot} could not be decoded; generated art used`); }
+  }
+  let icon = images.icon;
+  if (icon) {
+    // Remove only a near-black matte connected to the outside of an opaque icon.
+    const cut=document.createElement('canvas');cut.width=icon.width;cut.height=icon.height;
+    const c=cut.getContext('2d');c.drawImage(icon,0,0);
+    const pixels=c.getImageData(0,0,cut.width,cut.height), d=pixels.data, w=cut.width,h=cut.height;
+    const corners=[0,w-1,(h-1)*w,h*w-1];
+    if(corners.every(i=>d[i*4+3]>250 && Math.max(d[i*4],d[i*4+1],d[i*4+2])<24)) {
+      const seen=new Uint8Array(w*h), queue=corners.slice();
+      for(let q=0;q<queue.length;q++) {
+        const i=queue[q];if(seen[i])continue;seen[i]=1;
+        if(Math.max(d[i*4],d[i*4+1],d[i*4+2])>24)continue;
+        d[i*4+3]=0;
+        if(i%w)queue.push(i-1);if(i%w<w-1)queue.push(i+1);
+        if(i>=w)queue.push(i-w);if(i<w*(h-1))queue.push(i+w);
+      }
+      c.putImageData(pixels,0,0);icon=cut;
+    }
+  }
+  // Quantized, saturated dominant colors avoid white/black icon margins.
+  let colors = [[48,91,137], [24,36,63]];
+  if (icon) {
+    const sample = document.createElement('canvas'); sample.width=48; sample.height=48;
+    const s=sample.getContext('2d'); s.drawImage(icon,0,0,48,48);
+    const data=s.getImageData(0,0,48,48).data, bins=new Map();
+    for (let i=0;i<data.length;i+=4) {
+      const rgb=[data[i],data[i+1],data[i+2]], hi=Math.max(...rgb), lo=Math.min(...rgb);
+      if (data[i+3]<150 || hi<45 || lo>220 || hi-lo<25) continue;
+      const key=rgb.map(v=>Math.round(v/32)*32).join(',');
+      bins.set(key,(bins.get(key)||0)+1);
+    }
+    const ranked=[...bins].sort((a,b)=>b[1]-a[1]);
+    if (ranked.length) {
+      colors[0]=ranked[0][0].split(',').map(Number);
+      colors[1]=(ranked.find(([key])=>key.split(',').reduce((n,v,i)=>n+Math.abs(Number(v)-colors[0][i]),0)>170)||ranked[0])[0].split(',').map(Number);
+    }
+  }
+  // Preserve hue while lifting muted icon colors into a richer background palette.
+  colors=colors.map(c=>{const low=Math.min(...c),range=Math.max(...c)-low||1;
+    return c.map(v=>45+(v-low)/range*165);});
+  const rgb=(c,a=1)=>`rgba(${c.map(v=>Math.min(255,Math.round(v))).join(',')},${a})`;
+  function image(ctx,img,x,y,w,h,cover=false) {
+    const scale=cover?Math.max(w/img.width,h/img.height):Math.min(w/img.width,h/img.height);
+    const dw=img.width*scale,dh=img.height*scale;
+    ctx.save(); ctx.beginPath(); ctx.rect(x,y,w,h); ctx.clip();
+    ctx.drawImage(img,x+(w-dw)/2,y+(h-dh)/2,dw,dh); ctx.restore();
+  }
+  function title(ctx,w,h,top,bottom,maxSize) {
+    let lines=[],size=maxSize;
+    const maxWidth=w*.84;
+    for (;size>=18;size-=2) {
+      ctx.font=`800 ${size}px ${font}`;
+      lines=[]; let line='';
+      for (const word of label.split(/\s+/)) {
+        const next=line?line+' '+word:word;
+        if (line && ctx.measureText(next).width>maxWidth) {lines.push(line);line=word;} else line=next;
+      }
+      lines.push(line);
+      if (lines.length*size*1.08<=bottom-top && lines.every(l=>ctx.measureText(l).width<=maxWidth)) break;
+    }
+    if(lines.length===2) {
+      const words=lines[0].split(' ');
+      if(words.length>1) {
+        const first=words.slice(0,-1).join(' '), second=words.slice(-1)[0]+' '+lines[1];
+        if(ctx.measureText(second).width<=maxWidth &&
+           Math.abs(ctx.measureText(first).width-ctx.measureText(second).width)<
+           Math.abs(ctx.measureText(lines[0]).width-ctx.measureText(lines[1]).width)) lines=[first,second];
+      }
+    }
+    // A long unbroken label is still fitted, including scripts without spaces.
+    ctx.textAlign='center'; ctx.textBaseline='middle'; ctx.fillStyle='#fff';
+    ctx.shadowColor='rgba(0,0,0,.45)'; ctx.shadowBlur=size*.28; ctx.shadowOffsetY=size*.06;
+    let y=top+(bottom-top-lines.length*size*1.08)/2+size*.54;
+    for (const line of lines) {ctx.fillText(line,w/2,y,maxWidth); y+=size*1.08;}
+    ctx.shadowBlur=0; ctx.shadowOffsetY=0;
+  }
+  const result={};
+  for (const [slot,[w,h]] of Object.entries(sizes)) {
+    const canvas=document.createElement('canvas'); canvas.width=w; canvas.height=h;
+    const ctx=canvas.getContext('2d'); ctx.imageSmoothingQuality='high';
+    const direct=images[slot];
+    const feature=images.feature_graphic||images.banner;
+    const scene=direct || ((slot==='hero'||slot==='wide') && (feature||images.screenshot));
+    if (scene) {
+      if (slot==='logo'||slot==='icon') image(ctx,scene,0,0,w,h);
+      else image(ctx,scene,0,0,w,h,true);
+    } else if (slot==='logo') {
+      title(ctx,w,h,h*.08,h*.92,150);
+    } else {
+      const gradient=ctx.createLinearGradient(0,0,w,h);
+      gradient.addColorStop(0,rgb(colors[0].map(v=>v*.68)));
+      gradient.addColorStop(.6,rgb(colors[1].map(v=>v*.32)));
+      gradient.addColorStop(1,'#080c16'); ctx.fillStyle=gradient;ctx.fillRect(0,0,w,h);
+      if (icon) {
+        ctx.save();ctx.globalAlpha=.16;ctx.filter=`blur(${Math.round(w*.055)}px) saturate(1.4)`;
+        image(ctx,icon,-w*.15,-h*.15,w*1.3,h*1.3,true);ctx.restore();
+      }
+      const glow=ctx.createRadialGradient(w*.5,h*.32,0,w*.5,h*.32,w*.8);
+      glow.addColorStop(0,rgb(colors[0],.27));glow.addColorStop(1,rgb(colors[1],0));
+      ctx.fillStyle=glow;ctx.fillRect(0,0,w,h);
+      const vignette=ctx.createLinearGradient(0,h*.25,0,h);
+      vignette.addColorStop(0,'rgba(0,0,0,0)');vignette.addColorStop(1,'rgba(0,0,0,.56)');
+      ctx.fillStyle=vignette;ctx.fillRect(0,0,w,h);
+      const box=slot==='grid'?[w*.12,h*.14,w*.76,w*.76]:
+                slot==='wide'?[w*.36,h*.06,w*.28,h*.59]:
+                slot==='hero'?[w*.365,h*.12,w*.27,h*.78]:[w*.08,h*.08,w*.84,h*.84];
+      if (icon) {
+        ctx.save();ctx.shadowColor='rgba(0,0,0,.65)';ctx.shadowBlur=Math.min(w,h)*.055;
+        ctx.shadowOffsetY=Math.min(w,h)*.022;
+        // Opaque square icons read as deliberate app tiles, not pasted rectangles.
+        const [x,y,bw,bh]=box, side=Math.min(bw,bh);
+        if(slot!=='hero' && icon===images.icon) {
+          ctx.beginPath();ctx.roundRect(x+(bw-side)/2,y+(bh-side)/2,side,side,side*.14);ctx.clip();
+        }
+        image(ctx,icon,...box);ctx.restore();
+      } else if (slot !== 'hero') {
+        // A typographic monogram when the APK contains no usable image.
+        ctx.font=`800 ${Math.min(w,h)*.48}px ${font}`;ctx.fillStyle='rgba(255,255,255,.94)';
+        ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText([...label][0]||'A',w/2,h*.38);
+      }
+      if (slot==='grid') title(ctx,w,h,h*.7,h*.93,66);
+      if (slot==='wide') title(ctx,w,h,h*.69,h*.92,52);
+      // Hero intentionally has no title: Steam overlays the transparent logo.
+    }
+    // Photos as PNG can pass Steam's 12 MiB limit at hero size; the logo keeps its transparency.
+    const jpeg=scene && slot!=='logo' && slot!=='icon';
+    result[slot]=[jpeg?'jpg':'png', canvas.toDataURL(jpeg?'image/jpeg':'image/png',.9).split(',')[1]];
+  }
+  return {images:result,warnings,font};
+}

frame/android/steam_shortcuts.py

@@ -5,9 +5,11 @@ Python stdlib only; the Mac runs it with `ssh frame python3 - <args> < this`.
 
   steam_shortcuts.py add NAME EXE START_DIR [ICON]  -> prints the shortcut app id
   steam_shortcuts.py list                           -> JSON [{appid, name, exe}]
+  steam_shortcuts.py configure APPID NAME EXE START_DIR ICON VR ARTWORK_JSON
+  steam_shortcuts.py stop APPID
   steam_shortcuts.py remove APPID
 """
-import base64, json, os, socket, struct, sys, urllib.request
+import base64, glob, json, os, re, socket, struct, sys, urllib.request
 
 DEVTOOLS = 'http://127.0.0.1:8080/json'
 
@@ -22,10 +24,10 @@ def target_ws():
 class WS:
     """Just enough RFC 6455 for one CDP request/response on loopback."""
 
-    def __init__(self, url):
+    def __init__(self, url, timeout=20):
         host_port, path = url[len('ws://'):].split('/', 1)
         host, port = host_port.split(':')
-        self.s = socket.create_connection((host, int(port)), timeout=20)
+        self.s = socket.create_connection((host, int(port)), timeout=timeout)
         key = base64.b64encode(os.urandom(16)).decode()
         self.s.sendall((f'GET /{path} HTTP/1.1\r\nHost: {host_port}\r\nUpgrade: websocket\r\n'
                         f'Connection: Upgrade\r\nSec-WebSocket-Key: {key}\r\n'
@@ -69,8 +71,8 @@ class WS:
                 return msg.decode()
 
 
-def evaluate(js):
-    ws = WS(target_ws())
+def evaluate(js, timeout=20):
+    ws = WS(target_ws(), timeout)
     ws.send(json.dumps({'id': 1, 'method': 'Runtime.evaluate', 'params': {
         'expression': js, 'awaitPromise': True, 'returnByValue': True}}))
     while True:
@@ -83,6 +85,206 @@ def evaluate(js):
     return res.get('result', {}).get('value')
 
 
+# Steam's ELibraryAssetType (Capsule, Hero, Logo, Header, Icon).
+ASSETS = {'grid': 0, 'hero': 1, 'logo': 2, 'wide': 3, 'icon': 4}
+
+
+def collections_js(appid, wanted=()):
+    wanted = list(wanted)
+    return f'''async function syncCollections() {{
+      const wanted = {json.dumps(wanted)};
+      if (typeof collectionStore === "undefined" ||
+          typeof collectionStore.GetUserCollectionsByName !== "function" ||
+          typeof collectionStore.NewUnsavedCollection !== "function" ||
+          typeof collectionStore.SaveCollection !== "function")
+        return ["Steam collections API unavailable"];
+      const app = {{appid: {appid}}};
+      const warnings = [];
+      for (const name of ["Android", "Android VR", "Sideloaded"]) {{
+        const matches = collectionStore.GetUserCollectionsByName(name);
+        let collection = matches.find(c => !c.bIsDynamic && c.bAllowsDragAndDrop);
+        if (wanted.includes(name)) {{
+          if (!collection && matches.length) {{
+            warnings.push(name + " is an existing dynamic or read-only collection");
+            continue;
+          }}
+          if (!collection) {{
+            collection = collectionStore.NewUnsavedCollection(name, undefined, [app]);
+          }} else {{
+            collection.AsDragDropCollection().AddApps([app]);
+          }}
+          await collectionStore.SaveCollection(collection);
+        }} else if (collection) {{
+          collection.AsDragDropCollection().RemoveApps([app]);
+          await collectionStore.SaveCollection(collection);
+        }}
+      }}
+      return warnings;
+    }}'''
+
+
+
+def notes_js(name, details):
+    filename = 'notes_shortcut_' + re.sub(r'[!-/:-@ \[\\\]\^`]', '_', name.strip())
+    content = '\n'.join(str(details[k]) for k in ('package', 'version', 'source') if details.get(k))
+    return f'''if (SteamClient.GameNotes && typeof SteamClient.GameNotes.GetNotes === "function" &&
+                   typeof SteamClient.GameNotes.SaveNotes === "function") {{
+      try {{
+        const file = {json.dumps(filename)};
+        const previous = await SteamClient.GameNotes.GetNotes(file, file + "_images/");
+        if (previous.result !== 1 && previous.result !== 9) throw Error("read " + previous.result);
+        const data = previous.result === 1 ? JSON.parse(previous.notes) : {{notes: [], shortcut_name: {json.dumps(name)}}};
+        if (!Array.isArray(data.notes)) throw Error("unexpected notes format");
+        const id = "frame-control-library", now = Math.floor(Date.now()/1000);
+        const old = data.notes.find(n => n.id === id);
+        const note = {{id, shortcut_name: {json.dumps(name)}, title: "Installation details",
+                      content: {json.dumps(content)}, ordinal: old ? old.ordinal : data.notes.length,
+                      time_created: old ? old.time_created : now, time_modified: now}};
+        data.notes = data.notes.filter(n => n.id !== id).concat([note]);
+        const result = await SteamClient.GameNotes.SaveNotes(file, JSON.stringify(data));
+        if (result !== 1) throw Error("save " + result);
+      }} catch (e) {{ warnings.push("Steam notes: " + String(e)); }}
+    }}'''
+
+
+MAX_ART = 12 * 1024 * 1024  # Steam's custom artwork limit per slot
+
+
+def render(plan):
+    with open(plan) as f:
+        source = json.load(f)
+    images = {}
+    for slot, path in source['images'].items():
+        ext = os.path.splitext(path)[1][1:]
+        with open(path, 'rb') as f:
+            data = f.read(MAX_ART + 1)
+        if len(data) > MAX_ART:
+            raise ValueError('source artwork too large')
+        images[slot] = [ext, base64.b64encode(data).decode()]
+    renderer = globals().get('ART_RENDERER')
+    if renderer is None:
+        with open(os.path.join(os.path.dirname(__file__), 'library_artwork.js')) as f:
+            renderer = f.read()
+    try:
+        return _render(plan, renderer, source['label'], images)
+    except (ValueError, OSError, EOFError, SystemExit) as e:
+        # Generated art from the icon alone always fits; a photo that didn't must not fail the install.
+        result = _render(plan, renderer, source['label'], {k: v for k, v in images.items() if k == 'icon'})
+        result['warnings'].insert(0, 'Source artwork could not be rendered (' + str(e)[:120] + '); generated art used')
+        return result
+
+
+def _render(plan, renderer, label, images):
+    # A 4K photo takes seconds to decode and encode on the Frame; allow well beyond that.
+    result = evaluate(renderer + '\nrenderLibraryArtwork(' + json.dumps({'label': label, 'images': images}) + ')',
+                      timeout=75)
+    if not isinstance(result, dict) or set(result.get('images', {})) != set(ASSETS):
+        raise ValueError('incomplete artwork render')
+    paths = {}
+    for slot, (ext, encoded) in result['images'].items():
+        data = base64.b64decode(encoded, validate=True)
+        signature = {'png': b'\x89PNG\r\n\x1a\n', 'jpg': b'\xff\xd8\xff'}.get(ext)
+        if not signature or not data.startswith(signature) or len(data) > MAX_ART:
+            raise ValueError(slot + ' render is ' + str(len(data)) + ' bytes of ' + str(ext))
+        paths[slot] = os.path.join(os.path.dirname(plan), slot + '.' + ext)
+        with open(paths[slot] + '.tmp', 'wb') as f:
+            f.write(data)
+    for slot, path in paths.items():
+        os.replace(path + '.tmp', path)
+        for stale in ('png', 'jpg'):
+            other = os.path.join(os.path.dirname(plan), slot + '.' + stale)
+            if other != path and os.path.exists(other):
+                os.remove(other)
+    return {'paths': paths, 'warnings': list(result.get('warnings', []))}
+
+
+# Steam's own file for each custom-art type in userdata/*/config/grid/.
+GRID_FILES = {0: 'p', 1: '_hero', 2: '_logo', 3: ''}
+
+
+def custom_art(appid):
+    """The custom-art types this shortcut already has in Steam, for any local user."""
+    found = set()
+    for kind, suffix in GRID_FILES.items():
+        pattern = os.path.expanduser(f'~/.local/share/Steam/userdata/*/config/grid/{int(appid)}{suffix}.*')
+        if any(os.path.splitext(p)[1].lower() in ('.png', '.jpg', '.jpeg') for p in glob.glob(pattern)):
+            found.add(kind)
+    return found
+
+
+def configure(appid, name, exe, start_dir, icon, vr, artwork, options=None):
+    """options: category, details, fill_only (only empty slots and a missing icon; name and flags untouched)."""
+    options = options or {}
+    category = options.get('category', 'Android')
+    fill = bool(options.get('fill_only'))
+    existing = custom_art(appid) if fill else set()
+    if set(artwork) != set(ASSETS):
+        raise ValueError('all five Steam artwork slots are required')
+    images = []
+    for slot, path in artwork.items():
+        if slot not in ASSETS:
+            raise ValueError('unknown artwork slot')
+        ext = os.path.splitext(path)[1][1:]
+        if ext not in ('png', 'jpg'):
+            raise ValueError('artwork must be PNG or JPEG')
+        with open(path, 'rb') as f:
+            data = f.read(MAX_ART + 1)
+        if len(data) > MAX_ART:
+            raise ValueError('artwork is too large')
+        # Frame's custom-art API maps type 4 to Header; use SetShortcutIcon.
+        if slot != 'icon' and ASSETS[slot] not in existing:
+            images.append([ASSETS[slot], ext, base64.b64encode(data).decode()])
+    return evaluate(f'''(async () => {{
+      const id = {int(appid)}, warnings = [], fill = {json.dumps(fill)};
+      const overview = appStore.GetAppOverviewByAppID(id);
+      if (!fill) {{
+        SteamClient.Apps.SetShortcutName(id, {json.dumps(name)});
+        if ({json.dumps(exe)}) SteamClient.Apps.SetShortcutExe(id, {json.dumps(exe)});
+        if ({json.dumps(start_dir)}) SteamClient.Apps.SetShortcutStartDir(id, {json.dumps(start_dir)});
+        if (typeof SteamClient.Apps.SetShortcutSortAs === "function")
+          SteamClient.Apps.SetShortcutSortAs(id, {json.dumps(name)});
+      }}
+      if (!fill || !(overview && overview.icon_data)) SteamClient.Apps.SetShortcutIcon(id, {json.dumps(icon)});
+      // null (devkit titles) or filling gaps: leave the VR flag as Steam has it.
+      if ({json.dumps(vr)} !== null && !fill) {{
+        if (typeof SteamClient.Apps.SetShortcutIsVR === "function")
+          SteamClient.Apps.SetShortcutIsVR(id, {json.dumps(vr)});
+        else warnings.push("Steam VR shortcut flag API unavailable");
+      }}
+      if (typeof SteamClient.Apps.SetCustomArtworkForApp === "function") {{
+        for (const [type, ext, data] of {json.dumps(images)}) {{
+          // Steam keeps a slot's PNG and JPEG side by side; clear it so a stale one can't win.
+          if (!fill && typeof SteamClient.Apps.ClearCustomArtworkForApp === "function")
+            try {{ await SteamClient.Apps.ClearCustomArtworkForApp(id, type); }} catch (e) {{}}
+          await SteamClient.Apps.SetCustomArtworkForApp(id, data, ext, type);
+        }}
+      }} else throw new Error("Steam artwork API unavailable; installation is incomplete");
+      {collections_js(int(appid), [category] + (['Android VR'] if vr and category == 'Android' else []))}
+      try {{ warnings.push(...await syncCollections()); }}
+      catch (e) {{ warnings.push("Steam collections: " + String(e)); }}
+      {notes_js(name, options.get('details', {}))}
+      return {{warnings}};
+    }})()''', timeout=60)
+
+
+def remove(appid):
+    # Collections and artwork are tidy-up: only a missing RemoveShortcut may fail the removal.
+    return evaluate(f'''(async () => {{
+      const id = {int(appid)}, warnings = [];
+      {collections_js(int(appid))}
+      try {{ warnings.push(...await syncCollections()); }}
+      catch (e) {{ warnings.push("Steam collections: " + String(e)); }}
+      if (typeof SteamClient.Apps.ClearCustomArtworkForApp === "function") {{
+        for (const type of [0, 1, 2, 3]) {{
+          try {{ await SteamClient.Apps.ClearCustomArtworkForApp(id, type); }}
+          catch (e) {{ warnings.push("Steam artwork " + type + ": " + String(e)); }}
+        }}
+      }} else warnings.push("Steam artwork removal API unavailable");
+      SteamClient.Apps.RemoveShortcut(id);
+      return {{warnings}};
+    }})()''')
+
+
 def main():
     cmd, args = sys.argv[1], sys.argv[2:]
     if cmd == 'add':
@@ -97,12 +299,30 @@ def main():
         }})()'''
         print(evaluate(js))
     elif cmd == 'list':
-        js = '''(() => appStore.allApps.filter(a => a.app_type === 1073741824)
-                  .map(a => ({appid: a.appid, name: a.display_name})))()'''
+        # Overviews carry no exe or devkit id (checked 2026-09-28); app details do, once registered.
+        js = '''(async () => Promise.all(appStore.allApps.filter(a => a.app_type === 1073741824).map(async a => {
+          let d = typeof appDetailsStore !== "undefined" && appDetailsStore.GetAppDetails(a.appid);
+          if (!d && typeof SteamClient.Apps.RegisterForAppDetails === "function") d = await new Promise(ok => {
+            let reg;
+            const timer = setTimeout(() => { if (reg) reg.unregister(); ok(null); }, 3000);
+            reg = SteamClient.Apps.RegisterForAppDetails(a.appid, x => {
+              clearTimeout(timer); setTimeout(() => reg && reg.unregister()); ok(x); });
+          });
+          return {appid: a.appid, name: a.display_name, devkit_gameid: a.devkit_gameid,
+                  exe: d ? d.strShortcutExe || "" : "", start_dir: d ? d.strShortcutStartDir || "" : ""};
+        })))()'''
         print(json.dumps(evaluate(js)))
+    elif cmd == 'render':
+        print(json.dumps(render(args[0])))
+    elif cmd == 'configure':
+        vr = {'1': True, '0': False}.get(args[5])  # '' leaves Steam's VR flag alone
+        print(json.dumps(configure(int(args[0]), *args[1:5], vr, json.loads(args[6]),
+                                   json.loads(args[7]) if len(args) > 7 else None)))
+    elif cmd == 'stop':
+        evaluate(f'SteamClient.Apps.TerminateApp({json.dumps(str((int(args[0]) << 32) | 0x02000000))}, false)')
+        print('stopping')
     elif cmd == 'remove':
-        evaluate(f'SteamClient.Apps.RemoveShortcut({int(args[0])})')
-        print('removed')
+        print(json.dumps(remove(int(args[0]))))
     else:
         sys.exit(__doc__)
 

frame/kdeconnect/LICENSES/kcontacts/BSD-3-Clause.txt

@@ -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.

frame/kdeconnect/LICENSES/kcontacts/CC0-1.0.txt

@@ -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
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frame/kdeconnect/LICENSES/kcontacts/LGPL-2.0-or-later.txt

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frame/kdeconnect/LICENSES/kcontacts/MIT.txt

@@ -0,0 +1,19 @@
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frame/kdeconnect/LICENSES/kcontacts/Unicode-DFS-2016.txt

@@ -0,0 +1,49 @@
+UNICODE, INC. LICENSE AGREEMENT - DATA FILES AND SOFTWARE
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frame/kdeconnect/LICENSES/kdeconnect/Apache-2.0.txt

@@ -0,0 +1,208 @@
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frame/kdeconnect/LICENSES/kdeconnect/BSD-3-Clause.txt

@@ -0,0 +1,26 @@
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frame/kdeconnect/LICENSES/kdeconnect/CC0-1.0.txt

@@ -0,0 +1,121 @@
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frame/kdeconnect/LICENSES/kdeconnect/GPL-2.0-only.txt

@@ -0,0 +1,319 @@
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+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.

frame/kdeconnect/LICENSES/kdeconnect/GPL-2.0-or-later.txt

@@ -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.

frame/kdeconnect/LICENSES/kdeconnect/GPL-3.0-only.txt

@@ -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
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frame/kdeconnect/LICENSES/kdeconnect/GPL-3.0-or-later.txt

@@ -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
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+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.
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+
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+
+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.
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+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.
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+
+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.
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+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.
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+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.
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+Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary.
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+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.
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+
+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.
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+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.
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+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.
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+     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.
+
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+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.
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+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.
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+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:
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+     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
+
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+
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+
+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.
+
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+
+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>.

frame/kdeconnect/LICENSES/kdeconnect/LGPL-2.1-only.txt

@@ -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.
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+
+We protect your rights with a two-step method: (1) we copyright the library,
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+Most GNU software, including some libraries, is covered by the ordinary GNU
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+applies to certain designated libraries, and is quite different from the ordinary
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+
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+That's all there is to it!

frame/kdeconnect/LICENSES/kdeconnect/LGPL-3.0-only.txt

@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
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frame/kdeconnect/LICENSES/kdeconnect/LicenseRef-KDE-Accepted-GPL.txt

@@ -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
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+GNU General Public License for more details.

frame/kdeconnect/LICENSES/kdeconnect/LicenseRef-KDE-Accepted-LGPL.txt

@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
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+GNU General Public License for more details.

frame/kdeconnect/LICENSES/kdeconnect/MIT.txt

@@ -0,0 +1,9 @@
+MIT License
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frame/kdeconnect/LICENSES/kpeople/BSD-3-Clause.txt

@@ -0,0 +1,11 @@
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frame/kdeconnect/LICENSES/kpeople/CC0-1.0.txt

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frame/kdeconnect/LICENSES/kpeople/LGPL-2.1-or-later.txt

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+
+That's all there is to it!

frame/kdeconnect/LICENSES/libfakekey/COPYRIGHT.txt

@@ -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
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+License as published by the Free Software Foundation; either
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+
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+
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+License along with this library; if not, write to the
+Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.

frame/kdeconnect/LICENSES/libfakekey/LGPL-2.0-or-later.txt

@@ -0,0 +1,446 @@
+GNU LIBRARY GENERAL PUBLIC LICENSE
+
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+
+signature of Ty Coon, 1 April 1990
+
+Ty Coon, President of Vice
+
+That's all there is to it!

frame/kdeconnect/LICENSES/modemmanager-qt/BSD-3-Clause.txt

@@ -0,0 +1,26 @@
+Copyright (c) <year> <owner>. All rights reserved.
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frame/kdeconnect/LICENSES/modemmanager-qt/CC0-1.0.txt

@@ -0,0 +1,121 @@
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frame/kdeconnect/LICENSES/modemmanager-qt/GPL-2.0-only.txt

@@ -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
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+the source code for all modules it contains, plus any associated interface
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+operating system on which the executable runs, unless that component itself
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+
+If distribution of executable or object code is made by offering access to
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+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.

frame/kdeconnect/LICENSES/modemmanager-qt/GPL-3.0-only.txt

@@ -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.
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frame/kdeconnect/LICENSES/modemmanager-qt/LGPL-2.1-only.txt

@@ -0,0 +1,467 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 2.1, February 1999
+
+Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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frame/kdeconnect/LICENSES/modemmanager-qt/LGPL-3.0-only.txt

@@ -0,0 +1,163 @@
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frame/kdeconnect/LICENSES/modemmanager-qt/LicenseRef-KDE-Accepted-GPL.txt

@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
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frame/kdeconnect/LICENSES/modemmanager-qt/LicenseRef-KDE-Accepted-LGPL.txt

@@ -0,0 +1,12 @@
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frame/kdeconnect/LICENSES/pulseaudio-qt/LGPL-2.1-only.txt

@@ -0,0 +1,467 @@
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frame/kdeconnect/LICENSES/pulseaudio-qt/LGPL-3.0-only.txt

@@ -0,0 +1,163 @@
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frame/kdeconnect/LICENSES/pulseaudio-qt/LicenseRef-KDE-Accepted-LGPL.txt

@@ -0,0 +1,12 @@
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+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.

frame/kdeconnect/NOTICE.md

@@ -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.

frame/kdeconnect/fetch.py

@@ -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)

frame/kdeconnect/packages.json

@@ -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"
+    }
+  ]
+}

frame/openxr-compat/.gitattributes

@@ -0,0 +1,2 @@
+# Preserve upstream headers byte-for-byte, including their existing whitespace.
+vendor/** -whitespace

frame/openxr-compat/.gitignore

@@ -0,0 +1 @@
+/build-*/

frame/openxr-compat/CMakeLists.txt

@@ -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()

frame/openxr-compat/README.md

@@ -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).

frame/openxr-compat/XrApiLayer_FRAME_compat.json

@@ -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"
+      }
+    ]
+  }
+}

frame/openxr-compat/build.sh

@@ -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"

frame/openxr-compat/compat_logic.h

@@ -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;
+}
+}

frame/openxr-compat/evidence/apk-verification.txt

@@ -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

frame/openxr-compat/evidence/ctest.txt

@@ -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

frame/openxr-compat/evidence/readelf.txt

@@ -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

frame/openxr-compat/layer.cpp

@@ -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;
+}

frame/openxr-compat/tests/compat_tests.cpp

@@ -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";
+}

frame/openxr-compat/tests/dispatch_tests.cpp

@@ -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";
+}

frame/openxr-compat/tests/shims/android/log.h

@@ -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;
+}