Merge main into vr-utilities: the performance HUD alongside comfort, keyboard, panels and media

Also from review: a SteamVR build without the timing exports can't break status
(AttributeError), and the device test class runs when the file is run directly.

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

.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, shell } = require("electron");
 const { execFile, spawn } = require("child_process");
 const { promisify } = require("util");
 const fs = require("fs");
@@ -249,10 +249,26 @@ function fromUi(e) {
 
 ipcMain.handle("clipboard:read", (e) => fromUi(e) ? clipboard.readText() : "");
 ipcMain.handle("connection:setup", (e) => { if (fromUi(e)) setUpConnection(); });
+ipcMain.on("keys:capture", (e, on) => { if (fromUi(e)) win.webContents.setIgnoreMenuShortcuts(on === true); });
 ipcMain.handle("update:get", (e) => fromUi(e) ? publicUpdate() : null);
 ipcMain.handle("update:check", (e) => fromUi(e) ? checkForUpdate({ manual: true }).then(publicUpdate) : null);
 ipcMain.handle("update:install", (e) => { if (fromUi(e)) installUpdate(); });
 
+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 +391,7 @@ 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());

app/package.json

@@ -82,6 +82,16 @@
           "!**/__pycache__/**"
         ]
       },
+      {
+        "from": "../frame/kdeconnect",
+        "to": "frame/kdeconnect",
+        "filter": [
+          "packages.json",
+          "NOTICE.md",
+          "LICENSES/**/*",
+          "packages/*.pkg.tar.zst"
+        ]
+      },
       {
         "from": "../apk-catalog",
         "to": "apk-catalog",
@@ -104,6 +114,14 @@
         "filter": [
           "**/*"
         ]
+      },
+      {
+        "from": "../THIRD_PARTY_NOTICES.md",
+        "to": "THIRD_PARTY_NOTICES.md"
+      },
+      {
+        "from": "../LICENSE",
+        "to": "LICENSE"
       }
     ],
     "mac": {

app/preload.js

@@ -9,8 +9,11 @@
 const { contextBridge, ipcRenderer, webUtils } = require("electron");
 
 contextBridge.exposeInMainWorld("frameApp", {
+  notify: (message, request) => ipcRenderer.invoke("comfort:notify", message, request),
   readClipboard: () => ipcRenderer.invoke("clipboard:read"),
   setUpConnection: () => ipcRenderer.invoke("connection:setup"),
+  // While the keyboard-and-trackpad panel holds the keyboard, ⌘W, ⌘R and the rest go to the Frame.
+  captureKeys: (on) => ipcRenderer.send("keys:capture", !!on),
   pathForFile: (file) => { try { return webUtils.getPathForFile(file) || ""; } catch { return ""; } },
   // Updates (app/updater.js): the page shows a banner and an Update button.
   update: {

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

@@ -92,8 +92,11 @@ app bundles `ui/`, `scripts/`, `frame/android/`, Valve's `frame/devkit-utils/` a
 ([python-build-standalone](https://github.com/astral-sh/python-build-standalone))
 and `adb` from Google's platform-tools, so there's nothing else to install. It
 also bundles curl's copy of Mozilla's CA list, because Python on Windows only
-trusts root certificates already in the Windows store.
-`app/build/fetch-deps.js` downloads both, pinned by SHA-256.
+trusts root certificates already in the Windows store. And it bundles KDE
+Connect for the Frame (Valve's arm64 build and five libraries, 3.6 MB,
+[`frame/kdeconnect`](../frame/kdeconnect/NOTICE.md)), which it copies to the
+Frame for the keyboard and trackpad.
+`app/build/fetch-deps.js` downloads all of it, pinned by SHA-256.
 
 The server is Python stdlib only and listens on 127.0.0.1. It rejects requests
 with a non-local `Host` header, and any `/api/` request without a custom

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/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/panels.md

@@ -121,8 +121,165 @@ 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
 

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).
 
@@ -115,18 +116,149 @@ 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
@@ -170,3 +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-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).

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

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

@@ -0,0 +1,121 @@
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frame/kdeconnect/LICENSES/kcontacts/LGPL-2.0-or-later.txt

@@ -0,0 +1,446 @@
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frame/kdeconnect/LICENSES/kcontacts/MIT.txt

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frame/kdeconnect/LICENSES/kcontacts/Unicode-DFS-2016.txt

@@ -0,0 +1,49 @@
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frame/kdeconnect/LICENSES/kdeconnect/Apache-2.0.txt

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+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+
+distributed under the License is distributed on an "AS IS" BASIS,
+
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+See the License for the specific language governing permissions and
+
+limitations under the License.

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

@@ -0,0 +1,121 @@
+Creative Commons Legal Code
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+vii. other similar, equivalent or corresponding rights throughout the
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+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
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+    this CC0 or use of the Work.

frame/kdeconnect/LICENSES/kdeconnect/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
+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-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
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+
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+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
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+
+The hypothetical commands `show w' and `show c' should show the appropriate
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+or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your school,
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+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/>
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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/>
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frame/kdeconnect/LICENSES/kdeconnect/LGPL-2.1-only.txt

@@ -0,0 +1,467 @@
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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
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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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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

@@ -0,0 +1,121 @@
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frame/kdeconnect/LICENSES/kpeople/LGPL-2.1-or-later.txt

@@ -0,0 +1,468 @@
+GNU LESSER GENERAL PUBLIC LICENSE
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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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+
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+
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+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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frame/kdeconnect/LICENSES/modemmanager-qt/BSD-3-Clause.txt

@@ -0,0 +1,26 @@
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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 @@
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+Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
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+
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+(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
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+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
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+Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/>
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frame/kdeconnect/LICENSES/modemmanager-qt/LGPL-2.1-only.txt

@@ -0,0 +1,467 @@
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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 @@
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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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+
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+
+That's all there is to it!

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

@@ -0,0 +1,163 @@
+GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+This version of the GNU Lesser General Public License incorporates the terms
+and conditions of version 3 of the GNU General Public License, supplemented
+by the additional permissions listed below.
+
+   0. Additional Definitions.
+
+      
+
+As used herein, "this License" refers to version 3 of the GNU Lesser General
+Public License, and the "GNU GPL" refers to version 3 of the GNU General Public
+License.
+
+      
+
+"The Library" refers to a covered work governed by this License, other than
+an Application or a Combined Work as defined below.
+
+      
+
+An "Application" is any work that makes use of an interface provided by the
+Library, but which is not otherwise based on the Library. Defining a subclass
+of a class defined by the Library is deemed a mode of using an interface provided
+by the Library.
+
+      
+
+A "Combined Work" is a work produced by combining or linking an Application
+with the Library. The particular version of the Library with which the Combined
+Work was made is also called the "Linked Version".
+
+      
+
+The "Minimal Corresponding Source" for a Combined Work means the Corresponding
+Source for the Combined Work, excluding any source code for portions of the
+Combined Work that, considered in isolation, are based on the Application,
+and not on the Linked Version.
+
+      
+
+The "Corresponding Application Code" for a Combined Work means the object
+code and/or source code for the Application, including any data and utility
+programs needed for reproducing the Combined Work from the Application, but
+excluding the System Libraries of the Combined Work.
+
+   1. Exception to Section 3 of the GNU GPL.
+
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+
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+a) under this License, provided that you make a good faith effort to ensure
+that, in the event an Application does not supply the function or data, the
+facility still operates, and performs whatever part of its purpose remains
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+
+b) under the GNU GPL, with none of the additional permissions of this License
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+
+   3. Object Code Incorporating Material from Library Header Files.
+
+The object code form of an Application may incorporate material from a header
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+
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+
+0) Convey the Minimal Corresponding Source under the terms of this License,
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+version of the Combined Work produced by recombining or relinking the Application
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+
+   5. Combined Libraries.
+
+You may place library facilities that are a work based on the Library side
+by side in a single library together with other library facilities that are
+not Applications and are not covered by this License, and convey such a combined
+library under terms of your choice, if you do both of the following:
+
+a) Accompany the combined library with a copy of the same work based on the
+Library, uncombined with any other library facilities, conveyed under the
+terms of this License.
+
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+based on the Library, and explaining where to find the accompanying uncombined
+form of the same work.
+
+   6. Revised Versions of the GNU Lesser General Public License.
+
+The Free Software Foundation may publish revised and/or new versions of the
+GNU Lesser General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to address
+new problems or concerns.
+
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+received it specifies that a certain numbered version of the GNU Lesser General
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+as you received it does not specify a version number of the GNU Lesser General
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frame/kdeconnect/LICENSES/pulseaudio-qt/LicenseRef-KDE-Accepted-LGPL.txt

@@ -0,0 +1,12 @@
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3 of the license or (at your option) any later version
+that is accepted by the membership of KDE e.V. (or its successor
+approved by the membership of KDE e.V.), which shall act as a
+proxy as defined in Section 6 of version 3 of the license.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.

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"
+    }
+  ]
+}

ios/FrameControl.xcodeproj/project.pbxproj

@@ -17,6 +17,7 @@
 		78427FC66780623F31E7501E /* FrameControlApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 93C8E0D7C3F4F628941B3D5A /* FrameControlApp.swift */; };
 		84423CB45629465420180A64 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 8F2CB550FC81C01E6BDD5A71 /* Assets.xcassets */; };
 		9657F7BC23E3352E5AB30777 /* SetupView.swift in Sources */ = {isa = PBXBuildFile; fileRef = DB544223FC60A59CC3E8EF5F /* SetupView.swift */; };
+		A0C5B00E257230A38DBD9E54 /* ComfortNotificationTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = E81218B75FEEE47B8D8BAE20 /* ComfortNotificationTests.swift */; };
 		A8C7AED25A6280682FCE45DC /* Citadel in Frameworks */ = {isa = PBXBuildFile; productRef = 6BA549B6CC0A0CB847126456 /* Citadel */; };
 		DC043FB74BE2D23F3A5826BF /* FrameControlTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1740B691F9C25E5FB6F9EFC3 /* FrameControlTests.swift */; };
 		E6898C714A92D3979F73B6E1 /* FrameFinder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2F288DF6636A417F0CA3A6CD /* FrameFinder.swift */; };
@@ -48,6 +49,7 @@
 		BF0FCA7117DA3ABA449B4EE0 /* InstallLink.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InstallLink.swift; sourceTree = "<group>"; };
 		D6C4E6C28315CA8729FCAAEA /* WebShell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WebShell.swift; sourceTree = "<group>"; };
 		DB544223FC60A59CC3E8EF5F /* SetupView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SetupView.swift; sourceTree = "<group>"; };
+		E81218B75FEEE47B8D8BAE20 /* ComfortNotificationTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ComfortNotificationTests.swift; sourceTree = "<group>"; };
 		EDC7BA8014DBC302D08FD397 /* HeadsetServer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HeadsetServer.swift; sourceTree = "<group>"; };
 		F3E2F5607DD877272483D64E /* FrameControl.app */ = {isa = PBXFileReference; includeInIndex = 0; lastKnownFileType = wrapper.application; path = FrameControl.app; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */
@@ -107,6 +109,7 @@
 		75A17B1C79C8C3C60FEABBA6 /* FrameControlTests */ = {
 			isa = PBXGroup;
 			children = (
+				E81218B75FEEE47B8D8BAE20 /* ComfortNotificationTests.swift */,
 				1740B691F9C25E5FB6F9EFC3 /* FrameControlTests.swift */,
 			);
 			path = FrameControlTests;
@@ -247,7 +250,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "mkdir -p \"${DERIVED_FILE_DIR}\"\npython3 \"${SRCROOT}/scripts/make_frame_bundle.py\" \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" > \"${DERIVED_FILE_DIR}/frame-bundle.version\"\nmkdir -p \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}\"\ncp \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.version\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/\"\n";
+			shellScript = "set -e\nmkdir -p \"${DERIVED_FILE_DIR}\"\n# Written aside and moved into place together, so a failed download can't leave a stale pair.\npython3 \"${SRCROOT}/scripts/make_frame_bundle.py\" \"${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz\" > \"${DERIVED_FILE_DIR}/frame-bundle.new.version\"\nmv \"${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\"\nmv \"${DERIVED_FILE_DIR}/frame-bundle.new.version\" \"${DERIVED_FILE_DIR}/frame-bundle.version\"\nmkdir -p \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}\"\ncp \"${DERIVED_FILE_DIR}/frame-bundle.tar.gz\" \"${DERIVED_FILE_DIR}/frame-bundle.version\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/\"\n";
 		};
 /* End PBXShellScriptBuildPhase section */
 
@@ -274,6 +277,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				A0C5B00E257230A38DBD9E54 /* ComfortNotificationTests.swift in Sources */,
 				DC043FB74BE2D23F3A5826BF /* FrameControlTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

ios/FrameControl/App/AppModel.swift

@@ -1,4 +1,5 @@
 import Citadel
+import CryptoKit
 import Foundation
 import SwiftUI
 import UIKit
@@ -33,6 +34,11 @@ final class AppModel: ObservableObject {
     }
 
     var deviceName: String { UIDevice.current.userInterfaceIdiom == .pad ? "iPad" : "iPhone" }
+    /// Stable per install: a hash of this device's SSH key, which is made once and kept in the Keychain.
+    var clientID: String {
+        let digest = SHA256.hash(data: Data(authorizedKeysLine.utf8))
+        return deviceName.lowercased() + "-" + digest.prefix(6).map { String(format: "%02x", $0) }.joined()
+    }
     private var hostKey: String? { UserDefaults.standard.string(forKey: Self.hostKeyKey) }
 
     // MARK: pairing
@@ -167,7 +173,7 @@ final class AppModel: ObservableObject {
             guard current() else { throw CancellationError() }
             step("Starting Frame Control on the headset")
             let key = Self.randomKey()
-            let server = try await HeadsetServer.start(in: dir, over: l, key: key, device: deviceName)
+            let server = try await HeadsetServer.start(in: dir, over: l, key: key, device: deviceName, client: clientID)
             guard current() else { throw CancellationError() }
             let f = try await PortForwarder.start(over: l, to: server.port)
             forwarder = f

ios/FrameControl/SSH/HeadsetServer.swift

@@ -80,8 +80,10 @@ final class HeadsetServer: @unchecked Sendable {
     }
 
     /// Starts the server in dir and waits for it to say which port it took.
-    static func start(in dir: String, over link: FrameLink, key: String, device: String) async throws -> HeadsetServer {
+    /// client is a stable id for this install (keyboard-and-trackpad pairing is kept per client).
+    static func start(in dir: String, over link: FrameLink, key: String, device: String, client: String) async throws -> HeadsetServer {
         let command = "cd \(dir) && FRAME_LOCAL=1 FRAME_UI_KEY=\(key) FRAME_DEVICE=\(shellQuote(device)) "
+            + "FRAME_CLIENT=\(shellQuote(client)) "
             + "exec python3 -I -u -B \"$PWD/ui/server.py\" --port 0 --exit-on-eof 2>&1"
         let stream = try await link.client.executeCommandStream(command)
         let box = PortWaiter()

ios/FrameControl/Web/WebShell.swift

@@ -1,6 +1,7 @@
 import SwiftUI
 import UIKit
 import WebKit
+import UserNotifications
 
 /// The Frame Control page, served by the server on the headset, in a web view.
 /// window.frameApp (the same bridge the desktop app's preload.js provides) lets
@@ -48,6 +49,7 @@ struct WebShell: UIViewRepresentable {
       let installCb = null;
       window.frameApp = {
         platform: "ios",
+        notify: (message, request) => call("notify", { message, request }),
         readClipboard: () => call("readClipboard"),
         setUpConnection: () => call("setUpConnection"),
         open: (what) => call("open", what),
@@ -58,13 +60,31 @@ struct WebShell: UIViewRepresentable {
     })();
     """
 
-    final class Coordinator: NSObject, WKScriptMessageHandlerWithReply, WKNavigationDelegate, WKUIDelegate {
+    final class Coordinator: NSObject, WKScriptMessageHandlerWithReply, WKNavigationDelegate, WKUIDelegate, UNUserNotificationCenterDelegate {
         let model: AppModel
         weak var web: WKWebView?
         var loaded: URL?
         private var installReady = false
 
-        init(model: AppModel) { self.model = model }
+        init(model: AppModel) {
+            self.model = model
+            super.init()
+            UNUserNotificationCenter.current().delegate = self
+        }
+
+        func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification,
+                                    withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+            completionHandler([.banner, .sound, .list])
+        }
+
+        static func notificationContent(_ message: String) -> UNMutableNotificationContent? {
+            guard !message.isEmpty, message.count <= 500 else { return nil }
+            let content = UNMutableNotificationContent()
+            content.title = "Frame Control"
+            content.body = message
+            content.sound = .default
+            return content
+        }
 
         // MARK: bridge
 
@@ -76,6 +96,28 @@ struct WebShell: UIViewRepresentable {
             }
             let arg = body["arg"]
             switch name {
+            case "notify":
+                guard message.frameInfo.isMainFrame,
+                      message.frameInfo.securityOrigin.host == "127.0.0.1",
+                      let args = arg as? [String: Any], let text = args["message"] as? String,
+                      let content = Self.notificationContent(text) else {
+                    return replyHandler(nil, "Invalid notification")
+                }
+                let center = UNUserNotificationCenter.current()
+                let send: (Bool, Error?) -> Void = { allowed, error in
+                    guard allowed else {
+                        return replyHandler(nil, error?.localizedDescription ?? "Notifications are off. Enable them in iOS Settings.")
+                    }
+                    let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: nil)
+                    center.add(request) { error in replyHandler(error == nil, error?.localizedDescription) }
+                }
+                if args["request"] as? Bool == true {
+                    center.requestAuthorization(options: [.alert, .sound], completionHandler: send)
+                } else {
+                    center.getNotificationSettings { settings in
+                        send(settings.authorizationStatus == .authorized || settings.authorizationStatus == .provisional, nil)
+                    }
+                }
             case "readClipboard":
                 replyHandler(UIPasteboard.general.string ?? "", nil)
             case "setUpConnection":

ios/FrameControlTests/ComfortNotificationTests.swift

@@ -0,0 +1,14 @@
+import XCTest
+import UserNotifications
+@testable import Frame_Control
+
+final class ComfortNotificationTests: XCTestCase {
+    func testNotificationContentAndBounds() {
+        let content = WebShell.Coordinator.notificationContent("Time for a break")
+        XCTAssertEqual(content?.title, "Frame Control")
+        XCTAssertEqual(content?.body, "Time for a break")
+        XCTAssertNotNil(content?.sound)
+        XCTAssertNil(WebShell.Coordinator.notificationContent(""))
+        XCTAssertNil(WebShell.Coordinator.notificationContent(String(repeating: "x", count: 501)))
+    }
+}

ios/project.yml

@@ -52,8 +52,12 @@ targets:
       - name: Pack the Frame bundle
         # The server, headset helpers and catalogue, as the app copies them to the Frame.
         script: |
+          set -e
           mkdir -p "${DERIVED_FILE_DIR}"
-          python3 "${SRCROOT}/scripts/make_frame_bundle.py" "${DERIVED_FILE_DIR}/frame-bundle.tar.gz" > "${DERIVED_FILE_DIR}/frame-bundle.version"
+          # Written aside and moved into place together, so a failed download can't leave a stale pair.
+          python3 "${SRCROOT}/scripts/make_frame_bundle.py" "${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz" > "${DERIVED_FILE_DIR}/frame-bundle.new.version"
+          mv "${DERIVED_FILE_DIR}/frame-bundle.new.tar.gz" "${DERIVED_FILE_DIR}/frame-bundle.tar.gz"
+          mv "${DERIVED_FILE_DIR}/frame-bundle.new.version" "${DERIVED_FILE_DIR}/frame-bundle.version"
           mkdir -p "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
           cp "${DERIVED_FILE_DIR}/frame-bundle.tar.gz" "${DERIVED_FILE_DIR}/frame-bundle.version" "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/"
         basedOnDependencyAnalysis: false

ios/scripts/make_frame_bundle.py

@@ -1,6 +1,8 @@
 #!/usr/bin/env python3
 """Pack what Frame Control's server needs to run on the Frame itself (the files the
-desktop app ships, plus ui/local-bin) into one reproducible .tar.gz.
+desktop app ships, plus ui/local-bin) into one reproducible .tar.gz. That includes
+KDE Connect for the keyboard and trackpad (frame/kdeconnect), downloaded first and
+checked against its pinned SHA-256s.
 
 The iPhone app copies it to ~/.cache/frame-control/<version> on the Frame and
 starts ui/server.py there. <version> is the SHA-256 of the archive, so a new
@@ -17,7 +19,9 @@ from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[2]
 PATTERNS = ["ui/*.py", "ui/*.html", "ui/local-bin/*", "scripts/*.sh", "frame/android/*.sh", "frame/android/*.py",
-            "frame/devkit-utils/**/*", "apk-catalog/*.py", "apk-catalog/pins.json", "apk-catalog/site/apps.js"]
+            "frame/devkit-utils/**/*", "apk-catalog/*.py", "apk-catalog/pins.json", "apk-catalog/site/apps.js",
+            "frame/kdeconnect/packages.json", "frame/kdeconnect/NOTICE.md", "frame/kdeconnect/LICENSES/*/*",
+            "frame/kdeconnect/packages/*.pkg.tar.zst", "LICENSE", "THIRD_PARTY_NOTICES.md"]
 
 
 def files():
@@ -47,6 +51,9 @@ def build():
 if __name__ == "__main__":
     if len(sys.argv) != 2:
         sys.exit(__doc__)
+    sys.path.insert(0, str(ROOT / "frame" / "kdeconnect"))
+    import fetch
+    fetch.fetch()
     data = build()
     Path(sys.argv[1]).write_bytes(data)
     print(hashlib.sha256(data).hexdigest()[:16])

tests/e2e/test_device.py

@@ -83,5 +83,27 @@ class Device(harness.FrameTestCase):
         self.assertEqual(state()['steam']['pages'][0]['title'], 'Hades on Steam')
 
 
+class VRUtilities(harness.FrameTestCase):
+    def test_missing_vr_runtime_is_unavailable_not_zero_fps(self):
+        data = ok('GET', '/api/status')
+        self.assertIsNone(data['performance']['compositorFps'])
+        self.assertIsNone(data['performance']['appFps'])
+        self.assertEqual(data['temp'], 41.5)
+        self.assertEqual(data['battery']['percent'], 76)
+
+    def test_optional_paid_utilities_are_not_installed(self):
+        # The fake library contains games but none of these paid software titles.
+        for appid in (1009850, 1173510, 1068820, 908520):
+            code, body, _ = api('POST', '/api/steam', {'action': 'install', 'appid': appid})
+            self.assertEqual(code, 502, body)
+            self.assertIn('not owned', body['error'])
+        self.assertEqual(launches('install'), [])
+
+    def test_unverified_controls_are_not_exposed(self):
+        for action in ('recenter', 'adjust', 'restore'):
+            code, body, _ = api('POST', '/api/vr', {'action': action, 'origin': 'seated', 'y': .1})
+            self.assertEqual(code, 400, body)
+
+
 if __name__ == '__main__':
     unittest.main()

tests/fakeframe/rootfs/usr/local/lib/fakeframe/cef_shim.js

@@ -27,7 +27,7 @@ function newShortcutId(steam) {
 function build(steam) {
   const findShortcut = id => steam.shortcuts.find(s => s.appid === Number(id));
   const gameOverview = a => ({
-    appid: a.appid, display_name: a.display_name, sort_as: a.display_name, app_type: 1,
+    appid: a.appid, display_name: a.display_name, sort_as: a.display_name, app_type: a.app_type ?? 1,
     steam_hw_compat_category_packed: a.packed || 0, vr_supported: !!a.vr, vr_only: !!a.vr_only,
     size_on_disk: String(a.installed ? a.size : 0), minutes_playtime_forever: a.minutes || 0,
     rt_last_time_played: a.last_played || 0,

tests/page/ctrl_gestures.mjs

@@ -0,0 +1,244 @@
+// Control on the live view (tap, drag, hold, scroll, type), run in node against the real
+// functions from ui/index.html with a fake canvas and a fake server.
+import { readFileSync } from "fs";
+const src = readFileSync(new URL("../../ui/index.html", import.meta.url), "utf8");
+const grab = name => {
+  const one = src.match(new RegExp(`\\n((?:async )?function ${name}\\(.*\\}\\n)`));  // one-line function
+  if (one) return one[1];
+  const m = src.match(new RegExp(`(?:\\nconst ${name} = [^\\n]*\\n)|((?:async )?function ${name}\\([\\s\\S]*?\\n}\\n)`));
+  if (!m) throw new Error("not found: " + name);
+  return m[0];
+};
+const NAMES = ["panelKey", "ctrlAimedAt", "ctrlSameTarget", "isMoveEvent", "isRelease", "ctrlKeepable", "TAP_MOVE", "ctrlAim", "ctrlKeyEvent", "ctrlTouchCancel", "ctrlSend", "ctrlFlush", "ctrlMoveTo", "ctrlMoveBy", "ctrlSchedule",
+  "ctrlFlushMoves", "ctrlButton", "ctrlClick", "ctrlRelease", "ctrlFraction", "ctrlTouchDown", "centroid",
+  "ctrlTouchMove", "ctrlTouchUp", "ctrlTap", "ctrlText"];
+const code = NAMES.map(grab).join("");
+const fail = msg => { console.log("FAIL " + msg); process.exit(1); };
+const tick = (ms = 0) => new Promise(r => setTimeout(r, ms));
+
+function page({ mode = "abs", rect = { left: 0, top: 0, width: 640, height: 360 }, api } = {}) {
+  const target = { panel: { window: 42, display: ":1" } };
+  const ctrl = { on: true, queue: [], sending: false, state: "ready", message: "", move: null, rel: [0, 0], raf: 0,
+                 held: new Set(), keys: new Set(), pointers: new Map(), g: null, retry: null };
+  const sent = [];
+  const canvas = { width: 1280, height: 720, getBoundingClientRect: () => rect };
+  const env = {
+    ctrl, $: () => canvas, ctrlMode: () => mode, ctrlShow: () => {}, toast: () => {},
+    ctrlTarget: () => (mode !== "abs" ? { ok: true } : target.panel ? { ok: true, panel: target.panel } : { why: "gone" }),
+    api: api || (async (path, body) => { sent.push(...body.events); return { state: "ready", sent: true }; }),
+    requestAnimationFrame: cb => { setTimeout(cb, 0); return 1; },
+    navigator: {},
+  };
+  const fns = new Function(...Object.keys(env), `let ctrlWarned = false;\n${code}
+    return { ctrlTouchDown, ctrlTouchMove, ctrlTouchUp, ctrlTouchCancel, ctrlSend, ctrlText, ctrlButton, ctrlKeyEvent, ctrlRelease, ctrlFlushMoves };`)(...Object.values(env));
+  const at = (id, x, y) => ({ pointerId: id, clientX: x, clientY: y });
+  return { ctrl, sent, target, ...fns, at };
+}
+
+// A tap lands where it was tapped: pointer there first, then the click.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 320, 90)); p.ctrlTouchUp(p.at(1, 320, 90));
+  await tick(10);
+  const [move, down, up] = p.sent;
+  if (!(move.fx === 0.5 && Math.abs(move.fy - 0.25) < 1e-9 && move.window === 42 && move.display === ":1")) fail("tap position " + JSON.stringify(move));
+  if (!(down.window === 42 && down.display === ":1")) fail("a press names its panel " + JSON.stringify(down));
+  if (!(down.button === "left" && down.down && up.button === "left" && up.down === false && p.sent.length === 3))
+    fail("tap click " + JSON.stringify(p.sent));
+}
+// The panel is letterboxed in a taller view: taps map inside it, taps on the bars do nothing.
+{
+  const p = page({ rect: { left: 0, top: 0, width: 640, height: 480 } });  // 640x360 picture, 60px bars
+  p.ctrlTouchDown(p.at(1, 320, 150)); p.ctrlTouchUp(p.at(1, 320, 150));
+  p.ctrlTouchDown(p.at(2, 320, 10)); p.ctrlTouchUp(p.at(2, 320, 10));
+  await tick(10);
+  if (!(p.sent.length === 3 && Math.abs(p.sent[0].fy - 0.25) < 1e-9)) fail("letterbox " + JSON.stringify(p.sent));
+}
+// A drag is a mouse drag: down where it started, moves, up at the end.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.ctrlTouchMove(p.at(1, 140, 100)); await tick(5);
+  p.ctrlTouchMove(p.at(1, 200, 120)); await tick(5);
+  p.ctrlTouchUp(p.at(1, 200, 120)); await tick(10);
+  const kinds = p.sent.map(e => "fx" in e ? "move" : `${e.button}-${e.down ? "down" : "up"}`);
+  if (!(kinds[0] === "move" && kinds[1] === "left-down" && kinds.at(-1) === "left-up" && kinds.includes("move", 2)))
+    fail("drag " + kinds.join(","));
+  if (Math.abs(p.sent[0].fx - 100 / 640) > 1e-9) fail("drag starts where the finger went down");
+  if (p.ctrl.held.size) fail("drag left the button held");
+}
+// Press and hold is a right-click where the finger is.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 64, 36));
+  await tick(620);
+  p.ctrlTouchUp(p.at(1, 64, 36)); await tick(10);
+  const buttons = p.sent.filter(e => "button" in e).map(e => `${e.button}-${e.down}`);
+  if (buttons.join() !== "right-true,right-false") fail("hold " + buttons.join());
+  if (!(p.sent[0].fx === 0.1)) fail("hold position " + JSON.stringify(p.sent[0]));
+}
+// Two fingers scroll, and the content follows them (fingers up scrolls down).
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 200)); p.ctrlTouchDown(p.at(2, 200, 200));
+  p.ctrlTouchMove(p.at(1, 100, 180)); p.ctrlTouchMove(p.at(2, 200, 180));
+  p.ctrlTouchUp(p.at(1, 100, 180)); p.ctrlTouchUp(p.at(2, 200, 180));
+  await tick(10);
+  const dy = p.sent.filter(e => e.scroll).reduce((a, e) => a + e.scroll[1], 0);
+  if (!(dy === 40 && !p.sent.some(e => "button" in e))) fail("scroll " + JSON.stringify(p.sent));
+}
+// On the headset view it's a trackpad: drags move the pointer, taps click where it is.
+{
+  const p = page({ mode: "rel" });
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.ctrlTouchMove(p.at(1, 110, 100)); p.ctrlTouchMove(p.at(1, 120, 105));
+  p.ctrlTouchUp(p.at(1, 120, 105)); await tick(10);
+  p.ctrlTouchDown(p.at(1, 50, 50)); p.ctrlTouchUp(p.at(1, 50, 50)); await tick(10);
+  const moved = p.sent.filter(e => "dx" in e).reduce((a, e) => [a[0] + e.dx, a[1] + e.dy], [0, 0]);
+  if (!(moved[0] === 32 && moved[1] === 8)) fail("trackpad move " + JSON.stringify(moved));
+  if (p.sent.some(e => "fx" in e)) fail("trackpad sent an absolute position");
+  if (p.sent.filter(e => e.button === "left").length !== 2) fail("trackpad tap " + JSON.stringify(p.sent));
+}
+// Text: plain ASCII only, in chunks the server takes.
+{
+  const p = page();
+  p.ctrlText("héllo " + "x".repeat(600));
+  await tick(10);
+  const text = p.sent.map(e => e.text).join("");
+  if (!(text === "hllo " + "x".repeat(600) && p.sent.every(e => e.text.length <= 500))) fail("text " + text.length);
+}
+// Not connected yet: clicks and keys wait with their position. The request fails: only releases wait.
+{
+  let calls = 0;
+  const p = page({ api: async () => { calls++; if (calls === 1) return { state: "starting", sent: false }; throw new Error("offline"); } });
+  p.ctrlSend([{ fx: 0.1, fy: 0.1, window: 42 }, { button: "left", down: true }, { key: 30, down: true }]);
+  await tick(5);
+  const q = p.ctrl.queue;
+  if (!(q.length === 3 && "fx" in q[0] && q[1].button === "left" && q[2].key === 30)) fail("kept while starting " + JSON.stringify(q));
+  clearTimeout(p.ctrl.retry);
+  p.ctrl.queue = []; p.ctrl.retryAt = 0;
+  p.ctrlSend([{ button: "left", down: false }, { key: 31, down: true }, { dx: 3, dy: 1 }]);
+  await tick(5);
+  if (!(p.ctrl.queue.length === 1 && p.ctrl.queue[0].button === "left" && p.ctrl.queue[0].down === false))
+    fail("release kept on failure " + JSON.stringify(p.ctrl.queue));
+  if (calls !== 2) fail("retried in a tight loop: " + calls + " requests");
+  clearTimeout(p.ctrl.retry);
+}
+// Turning Control off (or the view losing focus) lets go of anything held.
+{
+  const p = page();
+  p.ctrlButton("left", true);
+  p.ctrlRelease(); await tick(10);
+  if (!(p.sent.at(-1).button === "left" && p.sent.at(-1).down === false && !p.ctrl.held.size)) fail("release " + JSON.stringify(p.sent));
+}
+// Keys held on the Frame are let go too.
+{
+  const p = page();
+  p.ctrlKeyEvent(42, true);
+  p.ctrlRelease(); await tick(10);
+  if (!(p.sent.at(-1).key === 42 && p.sent.at(-1).down === false && !p.ctrl.keys.size)) fail("key release " + JSON.stringify(p.sent));
+}
+// A long queue sheds moves and old scrolls, never a release.
+{
+  const p = page({ api: () => new Promise(() => {}) });  // stuck request
+  p.ctrlSend([{ dx: 1, dy: 1 }]);
+  p.ctrlSend([{ button: "left", down: false }]);
+  for (let i = 0; i < 320; i++) p.ctrlSend([{ scroll: [0, 1] }]);
+  if (!p.ctrl.queue.some(e => e.button === "left" && e.down === false)) fail("trim dropped a release");
+  if (p.ctrl.queue.length > 300) fail("trim kept " + p.ctrl.queue.length);
+}
+// Broken on the Frame side: no hammering, and only releases wait.
+{
+  let calls = 0;
+  const p = page({ api: async () => { calls++; return { state: "error", sent: false }; } });
+  p.ctrlSend([{ button: "left", down: true }, { button: "left", down: false }]);
+  await tick(50);
+  if (calls !== 1) fail("error response reposted " + calls + " times");
+  if (!(p.ctrl.queue.length === 1 && p.ctrl.queue[0].down === false)) fail("error kept " + JSON.stringify(p.ctrl.queue));
+  clearTimeout(p.ctrl.retry);
+}
+// Connecting: a tap keeps its position, so it lands where it was made.
+{
+  const p = page({ api: async () => ({ state: "starting", sent: false }) });
+  p.ctrlTouchDown(p.at(1, 320, 90)); p.ctrlTouchUp(p.at(1, 320, 90));
+  await tick(10);
+  const q = p.ctrl.queue;
+  if (!("fx" in q[0] && q[1].button === "left")) fail("connecting tap " + JSON.stringify(q));
+  clearTimeout(p.ctrl.retry);
+}
+// Lifting one of two scrolling fingers doesn't jump the scroll or start a drag.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 200)); p.ctrlTouchDown(p.at(2, 300, 200));
+  p.ctrlTouchUp(p.at(1, 100, 200));
+  p.ctrlTouchMove(p.at(2, 300, 199));
+  p.ctrlTouchUp(p.at(2, 300, 199)); await tick(10);
+  if (p.sent.length) fail("one finger left after scrolling " + JSON.stringify(p.sent));
+}
+// A cancelled touch isn't a tap.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 100)); p.ctrlTouchCancel(p.at(1, 100, 100)); await tick(10);
+  if (p.sent.length) fail("cancel clicked " + JSON.stringify(p.sent));
+}
+// Press and hold on the bars around the picture does nothing.
+{
+  const p = page({ rect: { left: 0, top: 0, width: 640, height: 480 } });
+  p.ctrlTouchDown(p.at(1, 320, 10)); await tick(620); p.ctrlTouchUp(p.at(1, 320, 10)); await tick(10);
+  if (p.sent.length) fail("hold on the bars " + JSON.stringify(p.sent));
+}
+// Taps only reach the panel in use, and only once its picture is the one on screen.
+{
+  const fns = ["panelKey", "deskPanel", "ctrlTarget"].map(grab).join("");
+  const check = (desk, live = true) => new Function("desk", "live", "ctrlMode", fns + "; return ctrlTarget();")(desk, live, () => "abs");
+  const a = { display: ":1", window: 5 }, b = { display: ":0", window: 5 };
+  const base = { panels: [a, b], loaded: true, pick: "", focus: ":1/5", shown: ":1/5" };
+  if (!check(base).ok) fail("target: shown and in use");
+  if (check({ ...base, shown: ":0/5" }).ok) fail("target: the picture is another panel with the same id");
+  if (!/Capture or Live/.test(check({ ...base, shown: null }, false).why)) fail("target: stale picture message");
+  if (check({ ...base, pick: ":0/5", shown: ":0/5" }).ok) fail("target: a watched panel that isn't in use");
+  if (check({ ...base, focus: null }).ok) fail("target: nothing in use");
+}
+// Focus moves to another panel mid-gesture: the tap or hold does nothing.
+{
+  const p = page();
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.target.panel = { window: 43, display: ":1" };
+  p.ctrlTouchUp(p.at(1, 100, 100)); await tick(10);
+  p.target.panel = { window: 42, display: ":1" };
+  p.ctrlTouchDown(p.at(1, 100, 100));
+  p.target.panel = null;
+  await tick(620); p.ctrlTouchUp(p.at(1, 100, 100)); await tick(10);
+  if (p.sent.some(e => "button" in e)) fail("gesture outlived its panel " + JSON.stringify(p.sent));
+}
+// Trimming keeps a click together with its position.
+{
+  const p = page({ api: () => new Promise(() => {}) });
+  p.ctrlSend([{ dx: 1, dy: 0 }]);  // in flight forever
+  for (let i = 0; i < 100; i++) p.ctrlSend([{ scroll: [0, 1] }]);
+  p.ctrlSend([{ fx: 0.5, fy: 0.5, window: 42, display: ":1" }, { button: "left", down: true }, { button: "left", down: false }]);
+  for (let i = 0; i < 198; i++) p.ctrlSend([{ scroll: [0, 1] }]);
+  const q = p.ctrl.queue, i = q.findIndex(e => e.button === "left" && e.down);
+  if (i < 1 || !("fx" in q[i - 1])) fail("trim split a click from its position");
+}
+// Backing off holds for new input too.
+{
+  let calls = 0;
+  const p = page({ api: async () => { calls++; return { state: "error", sent: false }; } });
+  p.ctrlSend([{ button: "left", down: false }]);
+  await tick(5);
+  for (let i = 0; i < 10; i++) { p.ctrlSend([{ key: 30, down: false }]); await tick(2); }
+  if (calls !== 1) fail("new input bypassed the backoff: " + calls + " requests");
+  clearTimeout(p.ctrl.retry);
+}
+// A long paste goes in several requests, so a release never waits behind all of it.
+{
+  const batches = [];
+  const p = page({ api: async (path, body) => { batches.push(body.events); return { state: "ready", sent: true }; } });
+  p.ctrlText("y".repeat(450));
+  p.ctrlButton("left", false);
+  await tick(30);
+  if (!batches.every(b => b.reduce((a, e) => a + (e.text?.length || 0), 0) <= 100)) fail("a batch carried too much text");
+  if (batches.length < 5) fail("paste went in " + batches.length + " requests");
+}
+console.log("control gestures ok");

tests/page/pad_queue.mjs

@@ -0,0 +1,48 @@
+// The page's input queue, run in node against the real functions from ui/index.html.
+import { readFileSync } from "fs";
+const src = readFileSync(new URL("../../ui/index.html", import.meta.url), "utf8");
+const grab = name => src.match(new RegExp(`(?:const ${name} = [^\\n]*\\n)|((?:async )?function ${name}\\([\\s\\S]*?\\n}\\n)`))[0];
+const code = ["isMove", "padSend", "padKeep", "padFlush"].map(grab).join("");
+const fail = msg => { console.log("FAIL " + msg); process.exit(1); };
+
+function page(api) {
+  const pad = { state: "ready", queue: [], sending: false };
+  const shown = [];
+  const fns = new Function("pad", "api", "padShow", code + "; return { padSend, padFlush };")(pad, api, s => { shown.push(s); pad.state = s.state; });
+  return { pad, shown, ...fns };
+}
+
+// While a request is in flight, events queue by these rules.
+{
+  const { pad, padSend } = page(() => new Promise(() => {}));  // a request that never returns
+  const send = (state, e) => { pad.state = state; padSend(e); };
+  send("ready", { singlehold: true });     // goes out, and stays in flight
+  send("error", { dx: 3 });                // dropped: a stale move while broken
+  send("error", { singlerelease: true });  // kept
+  send("off", { singlerelease: true });    // off: nothing was held
+  send("pairing", { key: "a" });           // kept while reconnecting
+  send("pairing", { dx: 1 });              // dropped
+  for (let i = 0; i < 250; i++) send("pairing", { key: "x" });
+  send("pairing", { singlerelease: true }); // kept past the 200 cap
+  const q = pad.queue;
+  if (!(q[0].singlerelease && q[1].key === "a" && q.at(-1).singlerelease && !q.some(e => "dx" in e)
+        && q.filter(e => e.singlerelease).length === 2)) fail("queueing " + JSON.stringify(q.slice(0, 3)) + " len " + q.length);
+}
+
+// A request that fails, or reaches a link that had dropped, keeps its keys and releases.
+for (const [label, api] of [["request failed", async () => { throw new Error("offline"); }],
+                            ["not sent", async () => ({ state: "starting", sent: false })]]) {
+  const { pad, padSend, shown } = page(api);
+  padSend({ dx: 5 });  // sent and lost: a move, fine to drop
+  await new Promise(r => setTimeout(r, 0));
+  pad.state = "ready";
+  padSend({ singlerelease: true });
+  padSend({ dx: 7 });  // queued while that request is in flight: stale once it fails
+  padSend({ key: "b" });
+  await new Promise(r => setTimeout(r, 0));
+  const q = pad.queue;
+  if (!(q.some(e => e.singlerelease) && q.some(e => e.key === "b") && !q.some(e => "dx" in e)))
+    fail(label + ": " + JSON.stringify(q));
+  if (!shown.length || shown.at(-1).state === "ready") fail(label + ": state not shown");
+}
+console.log("queue rules ok");

tests/test_comfort.py

@@ -0,0 +1,257 @@
+"""Fake-Frame session clock/actions plus real helper serialization and sensor probes."""
+import os
+import shutil
+import json
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import unittest
+from unittest.mock import Mock, patch
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / 'ui'))
+import frame_comfort as comfort
+import frame_status as status
+
+OPTIONS = {'action': 'start', 'minutes': 3, 'breakMinutes': 1, 'stillMinutes': 1,
+           'batteryAlert': True, 'heatAlert': True}
+
+
+class SessionTests(unittest.TestCase):
+    def setUp(self):
+        self.s = comfort.new_session(OPTIONS, 0, 'boot-one')
+        self.warn, self.home = Mock(), Mock()
+
+    def step(self, now, **sample):
+        comfort.tick(self.s, now, sample, self.warn, self.home, read_clock=lambda: now)
+
+    def test_warning_then_home_never_closes_a_game(self):
+        self.step(119)
+        self.warn.assert_not_called()
+        self.step(120)
+        self.warn.assert_called_once()
+        self.step(179)
+        self.home.assert_not_called()
+        self.step(180)
+        self.home.assert_called_once()
+        self.assertFalse(self.s['active'])
+        self.step(181)
+        self.home.assert_called_once()
+
+    def test_late_wakeup_always_gets_a_full_warning_minute(self):
+        self.step(400)
+        self.home.assert_not_called()
+        self.step(459)
+        self.home.assert_not_called()
+        self.step(460)
+        self.home.assert_called_once()
+
+    def test_slow_warning_still_leaves_a_full_minute(self):
+        comfort.tick(self.s, 120, {}, self.warn, self.home, read_clock=lambda: 140)
+        self.assertEqual(self.s['warned'], 140)
+        self.step(180)
+        self.home.assert_not_called()
+        self.step(199)
+        self.home.assert_not_called()
+        self.step(200)
+        self.home.assert_called_once()
+
+    def test_failed_warning_never_stops_session(self):
+        self.warn.side_effect = RuntimeError('offline')
+        with self.assertRaises(RuntimeError):
+            self.step(200)
+        self.assertIsNone(self.s['warned'])
+        self.home.assert_not_called()
+        self.warn.side_effect = None
+        self.step(300)
+        self.step(359)
+        self.home.assert_not_called()
+        self.step(360)
+        self.home.assert_called_once()
+
+    def test_failed_home_stays_active_and_retries(self):
+        self.step(120)
+        self.home.side_effect = RuntimeError('Steam offline')
+        with self.assertRaises(RuntimeError):
+            self.step(180)
+        self.assertTrue(self.s['active'])
+        self.home.side_effect = None
+        self.step(185)
+        self.assertFalse(self.s['active'])
+
+    def test_cancel_prevents_all_actions(self):
+        self.s['active'] = False
+        self.step(999, battery={'percent': 1, 'status': 'Discharging'})
+        self.warn.assert_not_called()
+        self.home.assert_not_called()
+        self.assertEqual(self.s['events'], [])
+
+    def test_breaks_and_checkin_require_measured_activity(self):
+        self.step(20, activity=1)
+        self.step(40, activity=2)
+        self.step(60, activity=1)
+        self.assertEqual([e['kind'] for e in self.s['events']], ['break', 'still'])
+        self.step(70, activity=1)
+        self.assertEqual(len(self.s['events']), 2)
+        self.step(75, activity=3)
+        self.assertEqual(self.s['used'], 0)
+        self.assertFalse(self.s['stillSent'])
+
+    def test_unknown_activity_and_gaps_do_not_count_as_wear(self):
+        self.step(25)
+        self.assertEqual(self.s['used'], 0)
+        self.assertEqual(self.s['unavailable'], ['battery', 'temperature', 'activity'])
+        self.step(100, activity=1)
+        self.assertEqual(self.s['used'], 30)
+
+    def test_alerts_latch_and_rearm_without_battery_chatter(self):
+        low = {'percent': 10, 'status': 'Discharging'}
+        self.step(1, battery=low, thermal=['cpu'])
+        self.step(2, battery=low, thermal=['cpu'])
+        self.step(3)
+        self.assertEqual(len(self.s['events']), 2)
+        self.step(4, battery={'percent': 16, 'status': 'Discharging'}, thermal=[])
+        self.step(5, battery=low, thermal=[])
+        self.assertEqual(len(self.s['events']), 2)
+        self.step(6, battery={'percent': 22, 'status': 'Discharging'}, thermal=[])
+        self.step(7, battery=low, thermal=['cpu'])
+        self.assertEqual([e['kind'] for e in self.s['events']], ['battery', 'heat', 'battery', 'heat'])
+
+    def test_disabled_alerts_and_charging(self):
+        self.s['options']['heatAlert'] = False
+        self.step(1, battery={'percent': 2, 'status': 'Charging'}, thermal=['cpu'])
+        self.assertEqual(self.s['events'], [])
+
+    def test_invalid_options(self):
+        for key, value in [('minutes', 0), ('minutes', 241), ('minutes', True), ('minutes', 2.5),
+                           ('breakMinutes', -1), ('stillMinutes', '1'), ('heatAlert', 1)]:
+            with self.subTest(key=key, value=value), self.assertRaises(ValueError):
+                comfort.validate({**OPTIONS, key: value})
+        for value in (None, [], {'action': 'shutdown'}):
+            with self.assertRaises(ValueError):
+                comfort.validate(value)
+
+    def test_restart_invalidates_session_and_stale_worker_is_explicit(self):
+        with patch.object(comfort, 'boot', return_value='boot-one'), patch.object(comfort.time, 'time', return_value=999):
+            current = comfort.current(self.s, 100)
+            self.assertIn('not responding', current['error'])
+            self.assertEqual(current['time'], 999)
+        with patch.object(comfort, 'boot', return_value='boot-two'):
+            result = comfort.current(self.s, 100)
+            self.assertFalse(result['active'])
+            self.assertIn('restarted', result['error'])
+
+    @unittest.skipUnless(os.name == "posix", "on-headset state uses POSIX flock")
+    def test_real_state_commands_share_one_session_and_cancel(self):
+        with tempfile.TemporaryDirectory() as tmp, patch.object(comfort, 'ROOT', Path(tmp)), \
+             patch.object(comfort, 'boot', return_value='boot-one'), \
+             patch.object(comfort, 'clock', return_value=0), patch.object(comfort.subprocess, 'Popen') as spawn:
+            started = comfort.command(OPTIONS)
+            self.assertEqual(comfort.command({'action': 'status'})['id'], started['id'])
+            with self.assertRaises(ValueError):
+                comfort.command(OPTIONS)
+            self.assertFalse(comfort.command({'action': 'cancel'})['active'])
+            spawn.assert_called_once()
+            self.assertEqual((Path(tmp) / 'session.json').stat().st_mode & 0o777, 0o600)
+
+    @unittest.skipUnless(os.name == "posix", "on-headset state uses POSIX flock")
+    def test_cancel_clears_stale_worker_error(self):
+        with tempfile.TemporaryDirectory() as tmp, patch.object(comfort, 'ROOT', Path(tmp)), \
+             patch.object(comfort, 'boot', return_value='boot-one'), \
+             patch.object(comfort, 'clock', return_value=200):
+            with comfort.locked():
+                comfort.save(self.s)
+            self.assertIn('not responding', comfort.command({'action': 'status'})['error'])
+            cancelled = comfort.command({'action': 'cancel'})
+            self.assertFalse(cancelled['active'])
+            self.assertIsNone(cancelled['error'])
+            self.assertIsNone(comfort.command({'action': 'status'})['error'])
+
+    @unittest.skipUnless(os.name == "posix", "on-headset state uses POSIX flock")
+    def test_failed_spawn_leaves_session_inactive_and_retryable(self):
+        with tempfile.TemporaryDirectory() as tmp, patch.object(comfort, 'ROOT', Path(tmp)), \
+             patch.object(comfort, 'boot', return_value='boot-one'), \
+             patch.object(comfort, 'clock', return_value=0), patch.object(comfort.subprocess, 'Popen') as spawn:
+            spawn.side_effect = OSError('process limit')
+            with self.assertRaises(OSError):
+                comfort.command(OPTIONS)
+            failed = comfort.command({'action': 'status'})
+            self.assertFalse(failed['active'])
+            self.assertIn('Could not start', failed['error'])
+            spawn.side_effect = None
+            self.assertTrue(comfort.command(OPTIONS)['active'])
+
+    @unittest.skipUnless(os.name == "posix", "on-headset state uses POSIX flock")
+    def test_unreadable_state_is_preserved_and_can_be_replaced(self):
+        for contents in (b'{broken', b'\xff', b'null', b'[]', b'42', b'"x"'):
+            with self.subTest(contents=contents):
+                with tempfile.TemporaryDirectory() as tmp, patch.object(comfort, 'ROOT', Path(tmp)), \
+                     patch.object(comfort, 'boot', return_value='boot-one'), \
+                     patch.object(comfort, 'clock', return_value=0), patch.object(comfort.subprocess, 'Popen'):
+                    (Path(tmp) / 'session.json').write_bytes(contents)
+                    failed = comfort.command({'action': 'status'})
+                    self.assertFalse(failed['active'])
+                    self.assertIn('unreadable', failed['error'])
+                    backups = list(Path(tmp).glob('session-unreadable-*.json'))
+                    self.assertEqual(len(backups), 1)
+                    self.assertEqual(backups[0].read_bytes(), contents)
+                    self.assertTrue(comfort.command(OPTIONS)['active'])
+
+    def test_home_has_total_process_deadline_and_propagates_timeout(self):
+        with patch.object(comfort.subprocess, 'run', side_effect=subprocess.TimeoutExpired('home', 15)) as run:
+            with self.assertRaises(subprocess.TimeoutExpired):
+                comfort.home()
+            self.assertEqual(run.call_args.kwargs['timeout'], 15)
+            self.assertEqual(run.call_args.args[0][-1], '--home')
+
+    def test_native_warning_reports_failures_and_quotes_as_one_argument(self):
+        with patch.object(comfort.subprocess, 'run') as run:
+            run.return_value = subprocess.CompletedProcess([], 0, 'Notification succeeded', '')
+            comfort.notify('Save "now"; $(nothing)')
+            args = run.call_args.args[0]
+            self.assertEqual(args, [comfort.VRCMD, '--notify', 'Frame Control: Save "now"; $(nothing)'])
+            run.return_value.stdout = 'Notification failed with error 1'
+            with self.assertRaises(RuntimeError):
+                comfort.notify('test')
+
+    @unittest.skipUnless(shutil.which("node"), "Node exercises the fake Steam JS context")
+    def test_home_javascript_against_fake_steam_preserves_game(self):
+        # Same JS runs in Steam CDP. This fake records navigation and refuses any
+        # unexpected API call; it offers no shutdown or terminate-game primitive.
+        js = '''let running = [123], path = '/routes/library/app/123', visible = false;
+const location = {get pathname() {return path;}};
+const SteamUIStore = {Navigate(p) {path = '/routes' + p;}};
+const SteamClient = {OpenVR: {VROverlay: {
+  async ShowDashboard(key) {if (key !== 'valve.steam.gamepadui.main') throw Error(key); visible = true;},
+  async IsDashboardVisible() {return visible;}
+}}};
+'''
+        js += comfort.HOME_JS + '.then(result => console.log(JSON.stringify({result, running, visible})));'
+        r = subprocess.run(['node', '-e', js], capture_output=True, text=True, check=True)
+        result = json.loads(r.stdout)
+        self.assertEqual(result['running'], [123])
+        self.assertTrue(result['visible'])
+        self.assertEqual(result['result']['path'], '/routes/library/home')
+
+
+class SensorTests(unittest.TestCase):
+    def test_hot_trip_uses_its_own_zone_not_hottest_unrelated_chip(self):
+        values = {'/z/a/temp': '90000', '/z/a/trip_point_0_type': 'hot', '/z/a/trip_point_0_temp': '110000',
+                  '/z/b/temp': '45000', '/z/b/trip_point_0_type': 'hot', '/z/b/trip_point_0_temp': '44000', '/z/b/type': 'battery'}
+        def glob(pattern):
+            if pattern.endswith('thermal_zone*'):
+                return ['/z/a', '/z/b']
+            return [pattern.replace('*', '0')]
+        with patch.object(status.glob, 'glob', side_effect=glob), patch.object(status, 'read', side_effect=values.get):
+            self.assertEqual(status.thermal_alerts(), [{'zone': 'battery', 'tempC': 45, 'limitC': 44}])
+
+    def test_missing_thermal_and_activity_are_unknown(self):
+        with patch.object(status.glob, 'glob', return_value=[]):
+            self.assertIsNone(status.thermal_alerts())
+        with patch.object(status, 'run', return_value='unavailable'):
+            self.assertIsNone(status.activity_level())
+        for malformed in ('{}', '[null, 42, "bad"]'):
+            with patch.object(status, 'run', return_value=malformed):
+                self.assertIsNone(status.activity_level())
+        with patch.object(status, 'run', return_value='[{"operation":"status","activity_level":3}]'):
+            self.assertEqual(status.activity_level(), 3)

tests/test_comfort_ui.py

@@ -0,0 +1,60 @@
+"""Run the actual shared page's comfort renderer against a minimal DOM/bridge."""
+import pathlib
+import shutil
+import subprocess
+import unittest
+
+ROOT = pathlib.Path(__file__).resolve().parents[1]
+
+
+@unittest.skipUnless(shutil.which('node'), 'Node exercises the shared page JS')
+class ComfortUI(unittest.TestCase):
+    def test_notification_failure_survives_poll_until_success(self):
+        page = (ROOT / 'ui/index.html').read_text(encoding='utf-8')
+        code = page[page.index('let comfortBusy ='):page.index('async function pollComfort()')]
+        setup = r'''
+const assert = require('node:assert/strict');
+const elements = new Map();
+const $ = id => {
+  if (!elements.has(id)) elements.set(id, {textContent:'', hidden:true, disabled:false, type: 'number'});
+  return elements.get(id);
+};
+let denied = 0;
+const window = {frameApp:{notify:async()=>{denied++;throw Error('permission denied');}}};
+const log = ()=>{}, toast = ()=>{};
+'''
+        checks = r'''
+(async()=>{
+  const active = {id:'session-one',active:true,time:100,remaining:120,
+    options:{minutes:2,breakMinutes:1,stillMinutes:1,batteryAlert:true,heatAlert:true},
+    events:[{id:'event-one',kind:'battery',time:99,message:'Low battery'}]};
+  renderComfort(active); // initial history must not replay even a fresh event
+  assert.equal(denied,0);
+  assert.equal($('comfortAnnouncement').textContent,'');
+  active.events.push({id:'event-two',kind:'break',time:100,message:'Take a break'});
+  renderComfort(active);
+  await new Promise(resolve=>setImmediate(resolve));
+  assert.equal(denied,1);
+  assert.equal($('comfortAnnouncement').textContent,'Take a break');
+  assert.equal($('comfortNotificationStatus').hidden,false);
+  assert.match($('comfortNotificationStatus').textContent,/notification settings/);
+  renderComfort({...active,time:105}); // the next normal poll must not erase failure
+  assert.equal($('comfortNotificationStatus').hidden,false);
+  assert.equal($('sessionStart').disabled,true);
+  assert.equal($('sessionMinutes').disabled,true);
+  assert.equal($('sessionCancel').disabled,false);
+  let requests=0;
+  window.frameApp.notify=async()=>{requests++;};
+  renderComfort({...active,time:106});
+  assert.equal($('comfortAnnouncement').textContent,'Take a break');
+  assert.equal(requests,0); // polling does not replay an already-seen event
+  await localNotification('test',true);
+  assert.equal($('comfortNotificationStatus').hidden,true);
+  renderComfort({...active,active:false});
+  assert.equal($('sessionStart').disabled,false);
+  assert.equal($('sessionMinutes').disabled,false);
+  assert.equal($('sessionCancel').disabled,true);
+})().catch(e=>{console.error(e);process.exitCode=1;});
+'''
+        result = subprocess.run(['node', '-e', setup + code + checks], capture_output=True, text=True)
+        self.assertEqual(result.returncode, 0, result.stderr)

tests/test_input.py

@@ -0,0 +1,632 @@
+"""Keyboard and pointer: event checks, and the agent's KDE Connect protocol against a fake kdeconnectd.
+
+The fake follows what KDE Connect 24.02 does (read from its source,
+core/backends/lan/lanlinkprovider.cpp): it accepts the TCP connection, reads the
+identity line, then starts TLS as the *client*.
+
+Run: python3 -m unittest discover -s tests
+"""
+import json
+import os
+import shutil
+import socket
+import ssl
+import subprocess
+import sys
+import tempfile
+import threading
+import time
+import unittest
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(ROOT / "ui"))
+
+
+class InputEvents(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        import server
+        cls.server = server
+
+    def check(self, event):
+        return self.server.input_event(event)
+
+    def test_keeps_known_fields(self):
+        self.assertEqual(self.check({"dx": 3, "dy": -1.234}), {"dx": 3.0, "dy": -1.23})
+        self.assertEqual(self.check({"singleclick": True, "other": 1}), {"singleclick": True})
+        self.assertEqual(self.check({"key": "héllo", "shift": True}), {"key": "héllo", "shift": True})
+        self.assertEqual(self.check({"specialKey": 12, "ctrl": True}), {"specialKey": 12, "ctrl": True})
+        self.assertEqual(self.check({"scroll": True, "dy": 1}), {"scroll": True, "dy": 1.0})
+
+    def test_clamps_movement(self):
+        self.assertEqual(self.check({"dx": 1e9})["dx"], self.server.INPUT_MOVE_LIMIT)
+        self.assertEqual(self.check({"dy": -1e9})["dy"], -self.server.INPUT_MOVE_LIMIT)
+
+    def test_rejects_bad_events(self):
+        bad = [None, [], "a", {}, {"shift": True}, {"dx": "1"}, {"dx": True}, {"dx": float("nan")},
+               {"key": ""}, {"key": 5}, {"key": "x" * 501}, {"specialKey": 0}, {"specialKey": 33},
+               {"specialKey": True}, {"specialKey": 1.5}, {"singleclick": "yes"}]
+        for event in bad:
+            with self.assertRaises(self.server.Failure, msg=repr(event)):
+                self.check(event)
+
+    def test_send_while_link_is_down_says_not_sent(self):
+        # The page keeps unsent keys and clicks and sends them once the agent is ready again.
+        from types import SimpleNamespace
+
+        class Probe(self.server.InputAgent):
+            def start(self):
+                self.proc, self.status = SimpleNamespace(poll=lambda: None, stdin=None), {"state": "starting"}
+
+        agent = Probe()
+        agent.status, agent.proc = {"state": "ready"}, SimpleNamespace(poll=lambda: 255)  # ssh has exited
+        self.assertEqual(agent.send([{"key": "x"}]), {"state": "starting", "sent": False})
+
+    def test_command_passes_client_quoted(self):
+        os.environ["FRAME_CLIENT"] = "test-client-1"
+        try:
+            cmd = self.server.InputAgent().command()
+        finally:
+            del os.environ["FRAME_CLIENT"]
+        self.assertTrue(cmd.startswith("python3 -u -c '"))
+        self.assertIn(" test-client-1 ", cmd)
+        cmd = self.server.InputAgent(packages=[("a.pkg.tar.zst", "ab")]).command("~/in/x")
+        self.assertTrue(cmd.endswith(""" '~/in/x' '[["a.pkg.tar.zst","ab"]]'"""), cmd)
+
+    def test_batch_limits(self):
+        with self.assertRaises(self.server.Failure):
+            self.server.remote_input({"events": "dx"})
+        with self.assertRaises(self.server.Failure):
+            self.server.remote_input({"events": [{"dx": 1}] * (self.server.INPUT_BATCH_LIMIT + 1)})
+
+
+class Bundled(unittest.TestCase):
+    """KDE Connect ships with Frame Control: the manifest, the notice, the copy to the Frame."""
+
+    @classmethod
+    def setUpClass(cls):
+        import server
+        cls.server = server
+        cls.manifest = json.loads((ROOT / "frame/kdeconnect/packages.json").read_text())
+
+    def test_manifest_pins_every_package(self):
+        packages = self.manifest["packages"]
+        self.assertEqual({p["name"] for p in packages},
+                         {"kdeconnect", "kcontacts", "kpeople", "libfakekey", "modemmanager-qt", "pulseaudio-qt"})
+        for p in packages:
+            self.assertRegex(p["sha256"], r"^[0-9a-f]{64}$")
+            self.assertTrue(p["file"].startswith(f"{p['name']}-{p['version']}-") and p["file"].endswith("-aarch64.pkg.tar.zst"), p)
+            self.assertTrue(p["source"].startswith(self.manifest["release"]), p)
+            self.assertRegex(p["source_sha256"], r"^[0-9a-f]{64}$")
+        self.assertTrue(self.manifest["release"].startswith("https://github.com/") and self.manifest["release"].endswith("/"))
+        self.assertNotIn("DO_NOT_SHARE", json.dumps(self.manifest))
+
+    def test_notice_names_each_version_and_its_licence_texts_ship(self):
+        notice = (ROOT / "frame/kdeconnect/NOTICE.md").read_text()
+        for p in self.manifest["packages"]:
+            self.assertIn(f"{p['name']} {p['version']}", notice)
+            self.assertIn(p["source"], notice)
+            self.assertIn(p["upstream"], notice)
+            for spdx in p["licenses"]:
+                self.assertTrue((ROOT / "frame/kdeconnect/LICENSES" / p["name"] / f"{spdx}.txt").is_file(), spdx)
+        self.assertIn("frame/kdeconnect/NOTICE.md", (ROOT / "THIRD_PARTY_NOTICES.md").read_text())
+
+    def test_about_dialog_has_the_licences(self):
+        titles = [n["title"] for n in self.server.licenses()]
+        self.assertIn("Frame Control (MIT)", titles)
+        self.assertIn("KDE Connect for the Frame", titles)
+        self.assertIn("kdeconnect: GPL-2.0-only", titles)
+
+    def test_both_apps_bundle_the_packages(self):
+        pkg = json.loads((ROOT / "app/package.json").read_text())["build"]["extraResources"]
+        kde = next(r for r in pkg if r["from"] == "../frame/kdeconnect")
+        self.assertIn("packages/*.pkg.tar.zst", kde["filter"])
+        self.assertIn("LICENSES/**/*", kde["filter"])
+        bundle = (ROOT / "ios/scripts/make_frame_bundle.py").read_text()
+        for pattern in ("frame/kdeconnect/packages/*.pkg.tar.zst", "frame/kdeconnect/LICENSES/*/*", "THIRD_PARTY_NOTICES.md"):
+            self.assertIn(pattern, bundle)
+
+    def fake_bundle(self, damaged=False):
+        folder = Path(tempfile.mkdtemp())
+        self.addCleanup(shutil.rmtree, folder)
+        (folder / "packages").mkdir()
+        data = {"a-1-1-aarch64.pkg.tar.zst": b"first", "b-2-1-aarch64.pkg.tar.zst": b"second"}
+        packages = []
+        for name, body in data.items():
+            (folder / "packages" / name).write_bytes(b"x" + body if damaged else body)
+            packages.append((name, __import__("hashlib").sha256(body).hexdigest()))
+        return folder, packages
+
+    def deliver(self, frame_has, damaged=False):
+        folder, packages = self.fake_bundle(damaged)
+        calls = []
+
+        def ssh(remote, stdin=None, timeout=30, text=True):
+            calls.append((remote, stdin))
+            answer = "yes\n" if remote.startswith("{ test -x") and frame_has else ""
+            return answer if text else answer.encode()
+        old = self.server.ssh, self.server.KDECONNECT, self.server.LOCAL
+        self.server.ssh, self.server.KDECONNECT, self.server.LOCAL = ssh, folder, False
+        try:
+            agent = self.server.InputAgent(packages=packages)
+            return agent.deliver(lambda m: calls.append(("report", m))), calls, packages
+        finally:
+            self.server.ssh, self.server.KDECONNECT, self.server.LOCAL = old
+
+    def test_copies_nothing_when_the_frame_has_them(self):
+        folder, calls, packages = self.deliver(frame_has=True)
+        self.assertEqual(folder, "")
+        self.assertEqual(len(calls), 1)
+        # Bytes: on Windows a text pipe would send CRLF and never match.
+        self.assertEqual(calls[0][1], "".join(f"{sha}  {name}\n" for name, sha in packages).encode())
+
+    def test_copies_each_package_over_ssh(self):
+        folder, calls, packages = self.deliver(frame_has=False)
+        self.assertTrue(folder.startswith("~/.local/share/frame-control/kdeconnect/incoming/"))
+        copies = [c for c in calls if c[0] != "report" and "cat >" in c[0]]
+        self.assertEqual([c[1] for c in copies], [b"first", b"second"])
+        self.assertIn("a-1-1-aarch64.pkg.tar.zst.part", copies[0][0])
+
+    def test_refuses_a_damaged_bundle(self):
+        with self.assertRaises(self.server.Failure):
+            self.deliver(frame_has=False, damaged=True)
+
+    def test_a_failed_copy_is_removed(self):
+        calls = []
+
+        def ssh(remote, stdin=None, timeout=30, text=True):
+            calls.append(remote)
+            if "cat >" in remote and len([c for c in calls if "cat >" in c]) == 2:
+                raise self.server.Failure("Broken pipe")
+            return b"" if not text else ""
+        folder, packages = self.fake_bundle()
+        old = self.server.ssh, self.server.KDECONNECT, self.server.LOCAL
+        self.server.ssh, self.server.KDECONNECT, self.server.LOCAL = ssh, folder, False
+        try:
+            with self.assertRaises(self.server.Failure):
+                self.server.InputAgent(packages=packages).deliver(lambda m: None)
+        finally:
+            self.server.ssh, self.server.KDECONNECT, self.server.LOCAL = old
+        self.assertTrue(calls[-1].startswith("rm -rf .local/share/frame-control/kdeconnect/incoming/"), calls[-1])
+
+    def lifecycle(self, agent_lines, deliver=None):
+        """An InputAgent whose ssh and agent are fakes. Returns it, the folders each launch
+        used, and the fake agents. A fake agent reports its lines, then keeps running
+        (unless its lines end with need-packages) until the test ends."""
+        launches, procs, done = [], [], threading.Event()
+        self.addCleanup(done.set)
+
+        class Agent(self.server.InputAgent):
+            def deliver(self, report, force=False):
+                if deliver:
+                    deliver()
+                return "~/copied" if force else ""
+
+            def command(self, folder=""):
+                launches.append(folder)
+                return "agent"
+
+        class Proc:
+            stdin = None
+
+            def __init__(self, lines):
+                self.lines, self.ended = lines, threading.Event()
+                procs.append(self)
+
+            @property
+            def stdout(self):
+                yield from self.lines
+                if self.lines and b"need-packages" not in self.lines[-1]:
+                    while not (done.is_set() or self.ended.is_set()):
+                        self.ended.wait(0.02)
+                self.ended.set()
+
+            def wait(self):
+                self.ended.wait(5)
+                return 0
+
+            def poll(self):
+                return 0 if self.ended.is_set() else None
+
+            def terminate(self):
+                self.ended.set()
+
+        def popen(*a, **k):
+            return Proc(agent_lines.pop(0) if agent_lines else [b'{"state": "ready"}\n'])
+        old = self.server.ensure_master, self.server.subprocess.Popen
+        self.server.ensure_master, self.server.subprocess.Popen = lambda: None, popen
+        self.addCleanup(lambda: (setattr(self.server, "ensure_master", old[0]),
+                                 setattr(self.server.subprocess, "Popen", old[1])))
+        agent = Agent(packages=[("a.pkg.tar.zst", "0" * 64)])
+
+        def settle():  # nothing of this test may still be launching when the next one starts
+            agent.stop()
+            for _ in range(250):
+                if agent.launching is None and all(p.ended.is_set() for p in procs):
+                    return
+                time.sleep(0.02)
+        self.addCleanup(settle)
+        return agent, launches, procs
+
+    def wait_for(self, check):
+        for _ in range(250):
+            if check():
+                return
+            time.sleep(0.02)
+        self.fail("timed out")
+
+    def test_agent_asking_for_packages_gets_them_and_starts_again(self):
+        agent, launches, procs = self.lifecycle([[b'{"state": "need-packages"}\n'], [b'{"state": "ready"}\n']])
+        agent.start()
+        self.wait_for(lambda: agent.status == {"state": "ready"})
+        self.assertEqual(launches, ["", "~/copied"])
+        self.assertIs(agent.proc, procs[1])
+
+    def test_asking_twice_is_an_error_not_a_loop(self):
+        need = [b'{"state": "need-packages"}\n']
+        agent, launches, _ = self.lifecycle([need, list(need)])
+        agent.start()
+        self.wait_for(lambda: agent.status.get("state") == "error")
+        self.assertEqual(launches, ["", "~/copied"])
+        self.assertIn("didn't reach", agent.status["message"])
+
+    def test_start_after_stop_during_the_copy_still_starts(self):
+        gate, entered = threading.Event(), threading.Event()
+        agent, launches, procs = self.lifecycle([], deliver=lambda: (entered.set(), gate.wait(5)))
+        agent.start()
+        self.assertTrue(entered.wait(5))
+        agent.stop()
+        entered.clear()
+        agent.start()  # while the first launch is still copying
+        self.assertTrue(entered.wait(5), "the second start didn't launch")
+        gate.set()
+        self.wait_for(lambda: agent.status == {"state": "ready"})
+        time.sleep(0.1)
+        # The stopped launch started no agent; the new one is the one in use.
+        self.assertEqual(len(procs), 1)
+        self.assertIs(agent.proc, procs[0])
+        agent.stop()
+        self.wait_for(lambda: all(p.ended.is_set() for p in procs))
+
+    def test_retry_and_a_new_start_never_run_two_agents(self):
+        # A start() landing just as an agent that asked for the packages exits: exactly one
+        # of it and the retry launches, and stop() ends everything. The new start is held
+        # in its copy until the retry has decided, so neither can see the other's agent.
+        first, decided = [], threading.Event()
+        agent, launches, procs = self.lifecycle([[b'{"state": "need-packages"}\n'], [b'{"state": "ready"}\n']])
+        watch, launch, deliver = agent._watch, agent._launch, agent.deliver
+
+        def racing_watch(proc, errors, retry=False):
+            wanted, heard = watch(proc, errors, retry)
+            if wanted and not first:
+                first.append(threading.current_thread())
+                agent.start()  # lands between the agent exiting and the retry
+            return wanted, heard
+
+        def held_deliver(report, force=False):
+            if force:
+                decided.set()  # the retry went ahead
+            elif first and threading.current_thread() is not first[0]:
+                decided.wait(5)  # the new start waits until the retry has decided
+            return deliver(report, force)
+
+        def first_launch(generation, force=False):
+            try:
+                launch(generation, force)
+            finally:
+                if first and threading.current_thread() is first[0]:
+                    decided.set()  # the retry declined
+        agent._watch, agent._launch, agent.deliver = racing_watch, first_launch, held_deliver
+        agent.start()
+        # Both have decided once the new start has launched its agent (it always does).
+        self.wait_for(lambda: decided.is_set() and launches.count("") == 2 and len(procs) == len(launches))
+        self.wait_for(lambda: agent.status == {"state": "ready"})
+        self.assertEqual(sum(not p.ended.is_set() for p in procs), 1, launches)
+        agent.stop()
+        self.wait_for(lambda: all(p.ended.is_set() for p in procs))
+
+    def test_stopped_during_the_copy_removes_it(self):
+        gate, entered = threading.Event(), threading.Event()
+        agent, launches, procs = self.lifecycle([], deliver=lambda: (entered.set(), gate.wait(5)))
+        removed = []
+        agent.discard = removed.append
+        agent.deliver = lambda report, force=False: (entered.set(), gate.wait(5), "~/incoming/x")[2]
+        self.addCleanup(lambda: self.assertEqual(removed, ["~/incoming/x"]))
+        agent.start()
+        self.assertTrue(entered.wait(5))
+        agent.stop()
+        gate.set()
+        self.wait_for(lambda: removed == ["~/incoming/x"])
+        self.assertEqual(procs, [])  # no agent started for it
+
+    def test_a_copy_whose_agent_never_starts_is_removed(self):
+        agent, launches, procs = self.lifecycle([[]])  # the agent dies before saying anything
+        removed = []
+        agent.discard = removed.append
+        agent.deliver = lambda report, force=False: "~/incoming/y"
+        agent.start()
+        self.wait_for(lambda: removed == ["~/incoming/y"])
+
+    def test_discard_only_touches_copies(self):
+        calls = []
+        old = self.server.ssh, self.server.LOCAL
+        self.server.ssh, self.server.LOCAL = (lambda remote, **k: calls.append(remote)), False
+        try:
+            agent = self.server.InputAgent(packages=[])
+            agent.discard("")
+            agent.discard("~/.local/share/frame-control/kdeconnect")
+            agent.discard("~/.local/share/frame-control/kdeconnect/incoming/ab12")
+            self.server.LOCAL = True
+            agent.discard("~/.local/share/frame-control/kdeconnect/incoming/ab12")
+        finally:
+            self.server.ssh, self.server.LOCAL = old
+        self.assertEqual(calls, ["rm -rf .local/share/frame-control/kdeconnect/incoming/ab12"])
+
+    def test_a_launch_error_leaves_it_ready_to_try_again(self):
+        # Popen fails (say, out of file handles) and so does removing the copy: the
+        # page gets the error and the next start launches.
+        agent, launches, procs = self.lifecycle([])
+        agent.deliver = lambda report, force=False: "~/.local/share/frame-control/kdeconnect/incoming/z"
+        old_popen, old_ssh = self.server.subprocess.Popen, self.server.ssh
+        self.server.subprocess.Popen = self.server.ssh = lambda *a, **k: (_ for _ in ()).throw(OSError(24, "Too many open files"))
+        try:
+            agent.start()
+            self.wait_for(lambda: agent.status.get("state") == "error")
+        finally:
+            self.server.subprocess.Popen, self.server.ssh = old_popen, old_ssh
+        self.assertIsNone(agent.launching)
+        agent.start()
+        self.wait_for(lambda: agent.status == {"state": "ready"})
+
+    def test_any_unexpected_error_still_reports_and_allows_a_retry(self):
+        agent, launches, procs = self.lifecycle([])
+        old = self.server.tempfile.TemporaryFile
+        self.server.tempfile.TemporaryFile = lambda: (_ for _ in ()).throw(OSError(24, "Too many open files"))
+        try:
+            agent.start()
+            self.wait_for(lambda: agent.status.get("state") == "error")
+        finally:
+            self.server.tempfile.TemporaryFile = old
+        self.assertIsNone(agent.launching)
+        agent.deliver = lambda report, force=False: (_ for _ in ()).throw(ValueError("something odd"))
+        agent.start()
+        self.wait_for(lambda: "something odd" in agent.status.get("message", ""))
+        self.assertIsNone(agent.launching)
+
+    def test_copies_go_to_a_folder_of_their_own(self):
+        first, _, _ = self.deliver(frame_has=False)
+        second, _, _ = self.deliver(frame_has=False)
+        self.assertNotEqual(first, second)
+
+
+@unittest.skipIf(sys.platform == "win32", "the agent runs on the Frame (Linux)")
+class AgentInstall(unittest.TestCase):
+    """The agent unpacks what the server copied, after checking each SHA-256."""
+
+    @classmethod
+    def setUpClass(cls):
+        import frame_input_agent
+        cls.agent = frame_input_agent
+
+    def setUp(self):
+        self.dir = Path(tempfile.mkdtemp())
+        self.addCleanup(shutil.rmtree, self.dir)
+        saved = self.agent.BASE, self.agent.ROOT, self.agent.stop_daemon, self.agent.say
+        self.addCleanup(lambda: setattr_all(self.agent, saved))
+        self.agent.BASE, self.agent.ROOT = self.dir / "base", self.dir / "base/root"
+        self.agent.stop_daemon, self.agent.say = lambda: None, lambda *a, **k: None
+        self.agent.BASE.mkdir()
+
+    def package(self):
+        src = self.dir / "src"
+        (src / "usr/lib").mkdir(parents=True)
+        (src / "usr/lib/kdeconnectd").write_text("#!/bin/sh\n")
+        out = self.dir / "incoming/kdeconnect-24.02.2-1-aarch64.pkg.tar.zst"
+        out.parent.mkdir()
+        if subprocess.run(["tar", "--zstd", "-cf", str(out), "-C", str(src), "usr"], capture_output=True).returncode:
+            self.skipTest("this tar can't write zstd")
+        return out, [(out.name, self.agent.sha256(out))]
+
+    def test_unpacks_and_stamps(self):
+        path, packages = self.package()
+        self.assertFalse(self.agent.installed(packages))
+        self.agent.install(path.parent, packages)
+        self.assertTrue((self.agent.ROOT / "usr/lib/kdeconnectd").is_file())
+        self.assertTrue(self.agent.installed(packages))
+        self.assertFalse(self.agent.installed([(path.name, "0" * 64)]))
+
+    def test_refuses_a_damaged_package(self):
+        path, packages = self.package()
+        with open(path, "ab") as f:
+            f.write(b"!")
+        with self.assertRaisesRegex(RuntimeError, "damaged"):
+            self.agent.install(path.parent, packages)
+        self.assertFalse(self.agent.ROOT.exists())
+
+    def test_missing_package_and_empty_manifest(self):
+        with self.assertRaisesRegex(RuntimeError, "didn't reach"):
+            self.agent.install(self.dir, [("nope.pkg.tar.zst", "0" * 64)])
+        with self.assertRaisesRegex(RuntimeError, "doesn't include"):
+            self.agent.install(self.dir, [])
+
+    def test_leaves_another_devices_running_copy_alone(self):
+        # A different build is running for another device: use it, don't stop it to reinstall.
+        self.agent.listening, old = (lambda: True), self.agent.listening
+        self.agent.our_daemons, old_ours = (lambda: [123]), self.agent.our_daemons
+        try:
+            self.agent.ensure_daemon("", [("new.pkg.tar.zst", "1" * 64)])
+        finally:
+            self.agent.listening, self.agent.our_daemons = old, old_ours
+        self.assertFalse(self.agent.ROOT.exists())
+
+    def test_asks_for_packages_it_was_not_sent(self):
+        self.agent.listening, old = (lambda: False), self.agent.listening
+        try:
+            for folder in ("", str(self.dir / "gone")):  # none sent, or already tidied away
+                with self.assertRaises(self.agent.NeedPackages):
+                    self.agent.ensure_daemon(folder, [("new.pkg.tar.zst", "1" * 64)])
+        finally:
+            self.agent.listening = old
+
+    def test_restart_can_still_unpack_its_copy_then_tidies_it(self):
+        folder = self.agent.BASE / "incoming/abc"
+        folder.mkdir(parents=True)
+        seen = []
+        stubs = {"ensure_daemon": lambda f, p: seen.append(Path(f).is_dir()),
+                 "identity": lambda c: ("id", "cert", "key"), "our_daemons": lambda: [123],
+                 "connect": lambda *a: (_ for _ in ()).throw(OSError("no answer"))}
+        saved = {k: getattr(self.agent, k) for k in stubs}
+        self.addCleanup(lambda: [setattr(self.agent, k, v) for k, v in saved.items()])
+        for k, v in stubs.items():
+            setattr(self.agent, k, v)
+        self.assertEqual(self.agent.run("c", "n", str(folder), []), 1)
+        self.assertEqual(seen, [True, True])  # there for the first start and the restart
+        self.assertFalse(folder.exists())
+
+    def test_tidy_keeps_copies_in_use(self):
+        incoming = self.agent.BASE / "incoming"
+        held_dir = incoming / "held"
+        held_dir.mkdir(parents=True)
+        held = self.agent.hold_incoming(str(held_dir))
+        self.addCleanup(held.close)
+        os.utime(held_dir, (time.time() - 7200,) * 2)
+        self.agent.tidy_incoming("")
+        self.assertTrue(held_dir.is_dir())
+
+    def test_tidy_keeps_other_starts_copies(self):
+        incoming = self.agent.BASE / "incoming"
+        mine, theirs, stale = incoming / "mine", incoming / "theirs", incoming / "stale"
+        for d in (mine, theirs, stale):
+            d.mkdir(parents=True)
+        os.utime(stale, (time.time() - 7200,) * 2)
+        self.agent.tidy_incoming(str(mine))
+        self.assertEqual(sorted(p.name for p in incoming.iterdir()), ["theirs"])
+
+    def test_server_and_agent_agree_on_the_stamp(self):
+        import server
+        packages = [("a.pkg.tar.zst", "1" * 64), ("b.pkg.tar.zst", "2" * 64)]
+        self.assertEqual(server.kdeconnect_stamp(packages), self.agent.stamp(packages))
+
+
+def setattr_all(module, saved):
+    module.BASE, module.ROOT, module.stop_daemon, module.say = saved
+
+
+class FakeKdeConnect:
+    """Just enough of kdeconnectd: pairs when asked and records remote-input packets."""
+
+    def __init__(self, paired=False):
+        self.listener = socket.socket()
+        self.listener.bind(("127.0.0.1", 0))
+        self.listener.listen(1)
+        self.port = self.listener.getsockname()[1]
+        self.paired, self.identity, self.received, self.pair_requests = paired, None, [], 0
+        threading.Thread(target=self.serve, daemon=True).start()
+
+    def serve(self):
+        conn, _ = self.listener.accept()
+        line = b""
+        while not line.endswith(b"\n"):
+            line += conn.recv(1)
+        self.identity = json.loads(line)
+        ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
+        ctx.check_hostname, ctx.verify_mode = False, ssl.CERT_NONE
+        tls = ctx.wrap_socket(conn)  # "Starting client ssl (but I'm the server TCP socket)"
+        tls.sendall(b'{"id": 1, "type": "kdeconnect.mousepad.keyboardstate", "body": {"state": true}}\n')
+        buf = b""
+        while True:
+            try:
+                chunk = tls.recv(65536)
+            except OSError:
+                return
+            if not chunk:
+                return
+            buf += chunk
+            while b"\n" in buf:
+                raw, buf = buf.split(b"\n", 1)
+                p = json.loads(raw)
+                if p["type"] == "kdeconnect.pair":
+                    self.pair_requests += 1
+                elif p["type"] == "kdeconnect.mousepad.request" and self.paired:
+                    self.received.append(p["body"])
+
+
+@unittest.skipIf(sys.platform == "win32", "the agent runs on the Frame (Linux)")
+@unittest.skipUnless(shutil.which("openssl"), "needs openssl to make a certificate")
+class AgentProtocol(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        import frame_input_agent
+        cls.agent = frame_input_agent
+        cls.dir = tempfile.TemporaryDirectory()
+        cls.cert, cls.key = Path(cls.dir.name, "cert.pem"), Path(cls.dir.name, "key.pem")
+        subprocess.run(["openssl", "req", "-x509", "-newkey", "rsa:2048", "-nodes", "-days", "1",
+                        "-subj", "/CN=framecontrol_test", "-keyout", str(cls.key), "-out", str(cls.cert)],
+                       check=True, capture_output=True)
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.dir.cleanup()
+
+    def wait_for(self, check):
+        for _ in range(100):
+            if check():
+                return
+            time.sleep(0.02)
+        self.fail("timed out")
+
+    def test_pairs_then_forwards_events(self):
+        fake = FakeKdeConnect()
+        link = self.agent.Link("framecontrol_0123456789abcdef01234567", self.cert, self.key, port=fake.port)
+        link.pair(lambda: fake.paired, lambda: setattr(fake, "paired", fake.pair_requests > 0), timeout=5)
+        self.assertEqual(fake.pair_requests, 1)
+        ident = fake.identity["body"]
+        self.assertEqual(fake.identity["type"], "kdeconnect.identity")
+        self.assertEqual(ident["protocolVersion"], 7)
+        self.assertIn("kdeconnect.mousepad.request", ident["outgoingCapabilities"])
+        link.read(0.5)
+        self.assertTrue(link.keyboard)
+        for body in self.agent.events(b'[{"dx": 4, "dy": -2}, {"key": "hi"}]'):
+            link.send(body)
+        self.wait_for(lambda: len(fake.received) == 2)
+        self.assertEqual(fake.received, [{"dx": 4, "dy": -2}, {"key": "hi"}])
+
+    def test_already_paired_sends_no_pair_request(self):
+        # A pair request to a device that's already paired makes KDE Connect unpair it.
+        fake = FakeKdeConnect(paired=True)
+        link = self.agent.Link("framecontrol_0123456789abcdef01234567", self.cert, self.key, port=fake.port)
+        link.pair(lambda: True, lambda: self.fail("accepted a pairing that wasn't needed"))
+        link.send({"singleclick": True})
+        self.wait_for(lambda: fake.received == [{"singleclick": True}])
+        self.assertEqual(fake.pair_requests, 0)
+
+    def test_client_args_are_folder_safe(self):
+        old = sys.argv
+        try:
+            sys.argv = ["-c", "../../etc x", "Alex's Mac"]
+            self.assertEqual(self.agent.client_args(), ("etcx", "Frame Control (Alex's Mac)", "", []))
+            sys.argv = ["-c"]
+            self.assertEqual(self.agent.client_args(), ("default", "Frame Control", "", []))
+            sys.argv = ["-c", "mac", "Mac", "~/x", '[["a.pkg.tar.zst", "ab"]]']
+            self.assertEqual(self.agent.client_args()[2:], (os.path.expanduser("~/x"), [("a.pkg.tar.zst", "ab")]))
+        finally:
+            sys.argv = old
+
+    def test_events_parsing(self):
+        self.assertEqual(self.agent.events(b'{"dx": 1}'), [{"dx": 1}])
+        self.assertEqual(self.agent.events(b'[{"dx": 1}, 5, {}]'), [{"dx": 1}])
+        self.assertEqual(self.agent.events(b"not json"), [])
+
+
+@unittest.skipUnless(shutil.which("node"), "needs node")
+class PageQueue(unittest.TestCase):
+    """The page's input queue (tests/page/pad_queue.mjs runs the real functions from index.html)."""
+
+    def test_queue_rules(self):
+        r = subprocess.run(["node", str(ROOT / "tests" / "page" / "pad_queue.mjs")], capture_output=True, text=True)
+        self.assertEqual(r.returncode, 0, r.stdout + r.stderr)
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_panels.py

@@ -0,0 +1,102 @@
+"""Fake-Frame panel responses and the headset page's real HTTP guards."""
+import http.client
+import json
+from pathlib import Path
+import sys
+import threading
+import unittest
+from unittest.mock import patch
+
+sys.path.insert(0, str(Path(__file__).resolve().parent.parent / 'ui'))
+import frame_panels as panels
+
+# Shape verified with vrcmd on SteamVR 2.18.1 / BUILD_ID 20260925.6191901.
+OVERLAYS = """---- OVERLAYS ----
+'valve.steam.desktopgame.12' -- 'Alex's <notes>', 1920x1080 visible VROverlayType_Dashboard_Main
+'valve.steam.desktopgame.12.thumb' -- 'Thumb', not_visible VROverlayType_Dashboard_Thumbnail
+'valve.steam.desktopgame.12.layer1' -- 'Layer', visible VROverlayType_Subview
+'system.pointer' -- 'Pointer', visible VROverlayType_Basic
+'valve.steam.desktopgame.13' -- 'Other', not_visible VROverlayType_Dashboard_Main
+"""
+
+
+class Panels(unittest.TestCase):
+    def test_enumerates_only_main_panels_including_hidden(self):
+        rows = panels.parse_overlays(OVERLAYS)
+        self.assertEqual(len(rows), 2)
+        self.assertEqual(rows[0]['title'], "Alex's <notes>")
+        self.assertTrue(rows[0]['visible'])
+        self.assertFalse(rows[1]['visible'])
+
+    def test_unavailable_runtime_is_not_an_empty_workspace(self):
+        with self.assertRaises(panels.PanelError):
+            panels.parse_overlays('SteamVR not running')
+        self.assertEqual(panels.parse_overlays('---- OVERLAYS ----'), [])
+
+    @patch.object(panels, 'run', return_value=OVERLAYS)
+    def test_focus_revalidates_and_dispatches_without_shell(self, run):
+        key = 'valve.steam.desktopgame.12'
+        self.assertEqual(panels.focus(key)['requested'], key)
+        self.assertEqual(run.call_args.args[0], [panels.VRCMD, '--showdashboard', key])
+
+    @patch.object(panels, 'run', return_value=OVERLAYS)
+    def test_closed_or_injected_panel_never_dispatches(self, run):
+        for key in (None, 12, 'x;touch /tmp/bad', '../other', 'missing'):
+            with self.assertRaises(panels.PanelError):
+                panels.focus(key)
+        self.assertEqual(run.call_count, 1)  # only valid-looking 'missing' enumerates
+
+
+class HeadsetHTTP(unittest.TestCase):
+    def setUp(self):
+        self.server = panels.HTTPServer(('127.0.0.1', 0), panels.Handler)
+        self.server.key = 'test-key'
+        self.server.closing = False
+        self.thread = threading.Thread(target=self.server.serve_forever, daemon=True)
+        self.thread.start()
+
+    def tearDown(self):
+        self.server.shutdown()
+        self.thread.join()
+        self.server.server_close()
+
+    def request(self, path, body=None, headers=None):
+        c = http.client.HTTPConnection('127.0.0.1', self.server.server_port, timeout=5)
+        try:
+            c.request('POST' if body is not None else 'GET', path, body=body, headers=headers or {})
+            r = c.getresponse()
+            return r.status, r.read().decode()
+        finally:
+            c.close()
+
+    def test_page_is_public_but_contains_no_key_or_private_titles(self):
+        status, page = self.request('/')
+        self.assertEqual(status, 200)
+        self.assertNotIn('test-key', page)
+        self.assertIn('textContent=p.title', page)  # titles never become HTML
+        self.assertEqual(self.request('/panels')[0], 403)
+
+    @patch.object(panels, 'state', return_value={'panels': []})
+    def test_auth_host_and_origin_checks(self, state):
+        auth = {'X-Panel-Key': 'test-key'}
+        self.assertEqual(self.request('/panels', headers=auth)[0], 200)
+        for extra in ({'Host': 'evil.test'}, {'Origin': 'https://evil.test'}, {'X-Panel-Key': 'wrong'}):
+            self.assertEqual(self.request('/panels', headers={**auth, **extra})[0], 403)
+        self.assertEqual(state.call_count, 1)
+
+    @patch.object(panels, 'focus', return_value={'requested': 'panel'})
+    def test_post_validation_and_close(self, focus):
+        auth = {'X-Panel-Key': 'test-key'}
+        for body in ('[]', '{broken', '0', '"text"', 'x' * 1025):
+            self.assertEqual(self.request('/focus', body, auth)[0], 400)
+        self.assertEqual(focus.call_count, 0)
+        self.assertEqual(self.request('/focus', '{"key":"panel"}', auth)[0], 200)
+        self.assertEqual(focus.call_args.args, ('panel',))
+        self.assertEqual(self.request('/close', '{}', auth)[0], 200)
+        self.assertTrue(self.server.closing)
+
+    @patch.object(panels, 'state', side_effect=panels.PanelError('offline'))
+    def test_offline_is_an_error_not_a_successful_empty_list(self, state):
+        status, body = self.request('/panels', headers={'X-Panel-Key': 'test-key'})
+        self.assertEqual(status, 502)
+        self.assertEqual(json.loads(body), {'error': 'offline'})

tests/test_server.py

@@ -84,6 +84,7 @@ class ServerGuards(unittest.TestCase):
 
     def test_api_needs_custom_header(self):
         # <img src> and plain form posts from other sites can't set it.
+        self.assertEqual(self.request("POST", "/api/comfort", {"action": "start"})[0], 403)
         self.assertEqual(self.request("GET", "/api/status")[0], 403)
         self.assertEqual(self.request("GET", "/api/screenshot?view=headset")[0], 403)
         self.assertEqual(self.request("GET", "/api/shots")[0], 403)
@@ -99,6 +100,8 @@ class ServerGuards(unittest.TestCase):
 
     def test_input_validation(self):
         cases = [
+            ("/api/comfort", {"action": "poweroff"}),
+            ("/api/comfort", {"action": "start", "minutes": 0}),
             ("/api/launch", {"appid": "620; rm -rf ~"}),
             ("/api/launch", {"appid": ""}),
             ("/api/flatpak", {"id": "org.example.App;id", "action": "install"}),

tests/test_touch.py

@@ -0,0 +1,283 @@
+"""Touch: the live view's Control (ui/frame_touch.py on the Frame, and the server's checks).
+
+Run: python3 -m unittest discover -s tests
+"""
+import shutil
+import subprocess
+import sys
+import unittest
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(ROOT / "ui"))
+
+
+class Mapping(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        import frame_touch
+        cls.t = frame_touch
+
+    def test_panel_bigger_than_its_display_is_scaled(self):
+        # Verified 2026-09-29: a 1920x1080 window on :1 (1280x720) took Accept at
+        # window (1828, 1020) as pointer (1219, 680).
+        panel = {"root": [1280, 720], "width": 1920, "height": 1080}
+        x, y = self.t.to_root(panel, 1828 / 1920, 1020 / 1080)
+        self.assertAlmostEqual(x, 1218.7, delta=1)
+        self.assertAlmostEqual(y, 679.4, delta=1)
+
+    def test_same_size_is_one_to_one_and_clamped(self):
+        panel = {"root": [1280, 720], "width": 1280, "height": 720}
+        self.assertEqual(self.t.to_root(panel, 0, 0), (0, 0))
+        self.assertEqual(self.t.to_root(panel, 1, 1), (1279, 719))
+        self.assertEqual(self.t.to_root(panel, -3, 7), (0, 719))
+
+    def test_other_shapes_are_letterboxed(self):
+        panel = {"root": [1280, 720], "width": 800, "height": 800}  # square: bars left and right
+        x, y = self.t.to_root(panel, 0, 0.5)
+        self.assertAlmostEqual(x, 280, delta=0.5)
+        self.assertAlmostEqual(y, 359.5, delta=0.5)
+
+    def test_same_id_on_both_displays_is_told_apart_by_pid(self):
+        t = self.t
+        saved = t.displays, t.window_info, t.window_pid
+        self.addCleanup(lambda: (setattr(t, "displays", saved[0]), setattr(t, "window_info", saved[1]),
+                                 setattr(t, "window_pid", saved[2])))
+        t.displays = lambda: [":0", ":1"]
+        t.window_info = lambda d, w: {"name": f"on {d}", "width": 1280 if w != "root" else 1920, "height": 720}
+        t.window_pid = lambda d, w: {":0": 111, ":1": 222}[d]
+        self.assertEqual(t.locate(5, 222)["display"], ":1")
+        self.assertEqual(t.locate(5, 111)["display"], ":0")
+        self.assertEqual(t.locate(5, None)["display"], ":0")
+
+    def test_focus_display_is_decoded(self):
+        t = self.t
+        saved = t.xprop_root
+        self.addCleanup(lambda: setattr(t, "xprop_root", saved))
+        for values, want in (([12602, 0, 58], ":1"), ([12346], ":0"), ([], None), ([0x41], None)):
+            t.xprop_root = lambda d, n, v=values: v
+            self.assertEqual(t.focus_display(), want)
+
+    def test_ascii_table_covers_printable_characters(self):
+        for code in range(0x20, 0x7F):
+            self.assertIn(chr(code), self.t.ASCII, chr(code))
+        self.assertEqual(self.t.ASCII["a"], (30, False))
+        self.assertEqual(self.t.ASCII["A"], (30, True))
+        self.assertEqual(self.t.ASCII["?"], (53, True))
+        self.assertEqual(self.t.ASCII["1"], (2, False))
+        self.assertEqual(self.t.ASCII["0"], (11, False))
+
+    def test_events_parsing(self):
+        self.assertEqual(self.t.events(b'{"dx": 1}'), [{"dx": 1}])
+        self.assertEqual(self.t.events(b'[{"dx": 1}, 5]'), [{"dx": 1}])
+        self.assertEqual(self.t.events(b"nope"), [])
+
+
+class FakeGamescope:
+    def __init__(self):
+        self.calls = []
+
+    def __getattr__(self, name):
+        return lambda *a: self.calls.append((name, *a))
+
+
+class Apply(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        import frame_touch
+        cls.t = frame_touch
+
+    def setUp(self):
+        self.focused = {"window": 7, "display": ":1", "root": [1280, 720], "width": 1280, "height": 720, "name": "x"}
+        saved = self.t.focus, self.t.say, self.t.focus_now
+        self.t.STALE[0] = False
+        self.said = []
+        self.t.focus = lambda: dict(self.focused)
+        self.t.focus_now = lambda: (self.focused["window"], self.focused["display"])
+        self.t.say = lambda state, **more: self.said.append((state, more))
+        self.addCleanup(lambda: (setattr(self.t, "focus", saved[0]), setattr(self.t, "say", saved[1]),
+                                 setattr(self.t, "focus_now", saved[2])))
+
+    def test_tap_moves_then_clicks_in_order(self):
+        gs, panel = FakeGamescope(), None
+        for e in ({"fx": 0.5, "fy": 0.5, "window": 7, "display": ":1"}, {"button": "left", "down": True, "window": 7, "display": ":1"},
+                  {"button": "left", "down": False}):
+            panel = self.t.apply(gs, e, panel)
+        self.assertEqual([c[0] for c in gs.calls], ["move_to", "button", "button"])
+        self.assertEqual(gs.calls[1][1:], ("left", True))
+
+    def test_a_tap_meant_for_another_panel_goes_nowhere(self):
+        # Focus moved on: the position and the press are dropped; the release still goes.
+        gs, panel = FakeGamescope(), None
+        for e in ({"fx": 0.5, "fy": 0.5, "window": 99, "display": ":1"}, {"button": "left", "down": True, "window": 99, "display": ":1"},
+                  {"key": 30, "down": True, "window": 7, "display": ":0"}, {"button": "left", "down": False, "window": 99, "display": ":1"}):
+            panel = self.t.apply(gs, e, panel)
+        self.assertEqual(gs.calls, [("button", "left", False)])
+        self.assertEqual(self.said[0], ("ready", {"focus": 7, "display": ":1", "stale": True}))
+
+    def test_presses_read_focus_afresh(self):
+        # A move may use a recent reading; a press checks again, so a panel that just
+        # took focus doesn't get a click meant for another.
+        gs, calls = FakeGamescope(), []
+        self.t.focus = lambda: calls.append(1) or dict(self.focused)
+        panel = self.t.apply(gs, {"fx": 0.5, "fy": 0.5, "window": 7, "display": ":1"}, None)
+        panel = self.t.apply(gs, {"fx": 0.6, "fy": 0.5, "window": 7, "display": ":1"}, panel)
+        self.assertEqual(len(calls), 1)
+        self.t.apply(gs, {"button": "left", "down": True, "window": 7, "display": ":1"}, panel)
+        self.assertEqual(len(calls), 1)  # same panel still: the quick check was enough
+        self.focused["window"] = 8
+        self.t.apply(gs, {"button": "left", "down": True, "window": 7, "display": ":1"}, panel)
+        self.assertEqual(len(calls), 2)
+        self.assertEqual([c[0] for c in gs.calls], ["move_to", "move_to", "button"])
+
+    def test_stale_is_said_once_and_cleared(self):
+        gs, panel = FakeGamescope(), None
+        for e in ({"fx": 0.5, "fy": 0.5, "window": 99, "display": ":1"}, {"fx": 0.5, "fy": 0.5, "window": 7, "display": ":1"},
+                  {"fx": 0.6, "fy": 0.5, "window": 7, "display": ":1"}):
+            panel = self.t.apply(gs, e, panel)
+        self.assertEqual(self.said, [("ready", {"focus": 7, "display": ":1", "stale": True}),
+                                     ("ready", {"focus": 7, "display": ":1"})])
+
+    def test_stale_clears_on_a_trackpad_move_but_not_on_a_stale_release(self):
+        gs = FakeGamescope()
+        panel = self.t.apply(gs, {"fx": 0.5, "fy": 0.5, "window": 99, "display": ":1"}, None)
+        panel = self.t.apply(gs, {"button": "left", "down": False, "window": 99, "display": ":1"}, panel)
+        self.assertTrue(self.t.STALE[0])  # that release was still aimed at the old panel
+        self.t.apply(gs, {"dx": 3, "dy": 0}, panel)
+        self.assertFalse(self.t.STALE[0])
+        self.assertEqual(self.said[-1][1].get("stale"), None)
+
+    def test_same_window_id_on_the_other_display_is_another_panel(self):
+        gs = FakeGamescope()
+        self.t.apply(gs, {"fx": 0.5, "fy": 0.5, "window": 7, "display": ":0"}, None)
+        self.assertEqual(gs.calls, [])
+
+    def test_relative_scroll_keys_text(self):
+        gs = FakeGamescope()
+        for e in ({"dx": 5, "dy": -3}, {"scroll": [0, 120]}, {"key": 30, "down": True}, {"text": "hi"},
+                  {"key": True}, {"button": "sideways"}):
+            self.t.apply(gs, e, None)
+        self.assertEqual([c[0] for c in gs.calls], ["move_by", "scroll", "key", "text"])
+
+    def test_everything_held_is_let_go(self):
+        class Held(self.t.Gamescope):
+            def __init__(self):
+                self.held, self.keys, self.log = set(), set(), []
+
+            def frame(self):
+                pass
+
+        g = Held()
+        g.L = type("L", (), {"ei_device_button_button": lambda *a: g.log.append(("button",) + a[2:]),
+                             "ei_device_keyboard_key": lambda *a: g.log.append(("key",) + a[2:])})()
+        g.device = object()
+        g.button("left", True)
+        g.key(42, True)
+        g.release_all()
+        self.assertEqual(g.log[-2:], [("button", 0x110, False), ("key", 42, False)])
+        self.assertEqual((g.held, g.keys), (set(), set()))
+
+    def test_resuming_after_a_pause_lets_go_of_everything(self):
+        t = self.t
+        log, queue = [], [1]
+
+        class L:
+            def __getattr__(self, name):
+                if name == "ei_get_event":
+                    return lambda ei: queue.pop(0) if queue else None
+                return {"ei_event_get_type": lambda ev: t.EV_DEVICE_RESUMED, "ei_event_get_device": lambda ev: "dev",
+                        "ei_device_has_capability": lambda d, c: True,
+                        "ei_device_button_button": lambda d, c, down: log.append(("button", c, down)),
+                        "ei_device_keyboard_key": lambda d, c, down: log.append(("key", c, down))}.get(name, lambda *a: 0)
+
+        g = t.Gamescope.__new__(t.Gamescope)
+        g.L, g.ei, g.fd, g.device, g.sequence, g.alive = L(), None, None, None, 0, True
+        g.held, g.keys = {0x110}, {42}
+        g.frame = lambda: None
+        old = t.select.select
+        t.select.select = lambda *a: ([], [], [])
+        try:
+            g.pump()
+        finally:
+            t.select.select = old
+        self.assertEqual(sorted(log), [("button", 0x110, False), ("key", 42, False)])
+        self.assertEqual(g.device, "dev")
+
+    def test_text_uses_shift_for_capitals(self):
+        class Keys(self.t.Gamescope):
+            def __init__(self):
+                self.pressed = []
+
+            def key(self, code, down):
+                self.pressed.append((code, down))
+        k = Keys()
+        k.text("Hié")  # the é has no key on a US layout and is left out
+        self.assertEqual(k.pressed, [(42, True), (35, True), (35, False), (42, False), (23, True), (23, False)])
+
+
+class ServerChecks(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        import server
+        cls.s = server
+
+    def test_touch_event_keeps_known_fields(self):
+        ev = self.s.touch_event
+        self.assertEqual(ev({"fx": 0.5, "fy": 2, "window": 5, "display": ":1"}), {"fx": 0.5, "fy": 1.0, "window": 5, "display": ":1"})
+        self.assertEqual(ev({"button": "left", "window": 5, "display": ":0"}), {"button": "left", "down": True, "window": 5, "display": ":0"})
+        self.assertEqual(ev({"button": "right"}), {"button": "right", "down": True})
+        self.assertEqual(ev({"key": 30, "down": False}), {"key": 30, "down": False})
+        self.assertEqual(ev({"scroll": [0, 1e9]}), {"scroll": [0.0, 5000.0]})
+        self.assertEqual(ev({"dx": 3, "other": 1}), {"dx": 3.0})
+
+    def test_touch_event_rejects_bad_ones(self):
+        for bad in (None, {}, {"fx": 0.5, "fy": 0.5}, {"fx": "1", "fy": 0, "window": 1, "display": ":1"}, {"button": "side"},
+                    {"fx": 0.5, "fy": 0.5, "window": 1}, {"fx": 0.5, "fy": 0.5, "window": 1, "display": ":1;x"},
+                    {"window": 1, "display": ":1"},
+                    {"key": 0}, {"key": 999}, {"key": True}, {"scroll": [1]}, {"text": ""}, {"text": "x" * 501},
+                    {"fx": 0.1, "fy": 0.1, "window": True, "display": ":1"}):
+            with self.assertRaises(self.s.Failure, msg=repr(bad)):
+                self.s.touch_event(bad)
+
+    def test_panel_stream_is_the_window_and_checked(self):
+        cmd = self.s.stream_command("src=panel&window=10485777&display=:1&h=720&fps=30")
+        self.assertIn("DISPLAY=:1 ffmpeg", cmd)
+        self.assertIn("-window_id 10485777 -i :1", cmd)
+        for bad in ("src=panel&window=1;rm&display=:1", "src=panel&window=1&display=:1;x", "src=panel&display=:1"):
+            with self.assertRaises(self.s.Failure):
+                self.s.stream_command(bad + "&h=720&fps=30")
+
+    def test_touch_agent_runs_the_helper_with_nothing_to_copy(self):
+        agent = self.s.TouchAgent()
+        self.assertEqual(agent.deliver(lambda m: None), "")
+        cmd = agent.command()
+        self.assertTrue(cmd.startswith("python3 -u -c '"))
+        self.assertIn("frame_touch", cmd)
+
+    def test_batch_limit(self):
+        with self.assertRaises(self.s.Failure):
+            self.s.remote_touch({"events": [{"dx": 1}] * (self.s.INPUT_BATCH_LIMIT + 1)})
+
+
+@unittest.skipUnless(shutil.which("node"), "needs node")
+class PageGestures(unittest.TestCase):
+    """Control's gestures and queue (tests/page/ctrl_gestures.mjs runs the real functions from index.html)."""
+
+    def test_gestures(self):
+        r = subprocess.run(["node", str(ROOT / "tests" / "page" / "ctrl_gestures.mjs")], capture_output=True, text=True,
+                           timeout=60)
+        self.assertEqual(r.returncode, 0, r.stdout + r.stderr)
+
+
+class Script(unittest.TestCase):
+    def test_helper_compiles_on_the_frames_python(self):
+        # The Frame runs it with its own python3 (3.13 on SteamOS 0.4.1); stdlib and ctypes only.
+        src = (ROOT / "ui/frame_touch.py").read_text()
+        compile(src, "frame_touch.py", "exec")
+        for mod in ("import ctypes", "import json", "import select"):
+            self.assertIn(mod, src)
+        self.assertNotIn("import requests", src)
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_vr.py

@@ -0,0 +1,152 @@
+"""Own VR telemetry, optional catalogue and entitlement guards; no headset needed."""
+import ctypes
+import json
+from pathlib import Path
+import shutil
+import subprocess
+import sys
+import tempfile
+import unittest
+from unittest import mock
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / 'ui'))
+import frame_status as status
+import frame_steam as steam
+import frame_utilities as utilities
+import frame_vr as vr
+import server
+
+
+class Telemetry(unittest.TestCase):
+    def test_background_client_does_not_request_steamvr_start(self):
+        with mock.patch.object(status.C, 'CDLL') as load:
+            with status.OpenVR():
+                pass
+        self.assertEqual(load.return_value.VR_InitInternal2.call_args.args[1], 3)
+        load.return_value.VR_ShutdownInternal.assert_called_once()
+
+    def test_linux_arm64_timing_layout(self):
+        self.assertEqual(ctypes.sizeof(status.Timing), 192)
+        self.assertEqual(status.Timing.pose.offset, 96)
+
+    def test_cpu_excludes_guest_and_counts_iowait_idle(self):
+        with mock.patch.object(status, 'read', return_value='cpu 20 0 10 50 20 0 0 0 7 1\n'):
+            self.assertEqual(status.cpu_ticks(), (100, 70))
+        self.assertEqual(status.cpu_percent((100, 70), (200, 110)), 60)
+        self.assertIsNone(status.cpu_percent((100, 70), (100, 70)))
+        self.assertIsNone(status.cpu_percent(None, (100, 70)))
+
+    def test_compositor_and_app_fps_are_distinct(self):
+        a, b = status.Timing(), status.Timing()
+        a.index, a.time = 100, 10
+        b.index, b.time, b.interval = 118, 10.2, 22.2222
+        b.gpu, b.compositorCpu = 4, 1
+        result = status.timing_values(a, b)
+        self.assertEqual(result['compositorFps'], 90)
+        self.assertEqual(result['appFps'], 45)
+        self.assertEqual(result['frameMs'], 11.11)
+        b.interval = 0
+        self.assertIsNone(status.timing_values(a, b)['appFps'])
+        b.index = a.index
+        self.assertEqual(status.timing_values(a, b), {})
+        b.index = 5  # compositor restart / wrap
+        self.assertEqual(status.timing_values(a, b), {})
+
+    def test_missing_openvr_keeps_sensor_values(self):
+        with mock.patch.object(status, 'OpenVR', side_effect=OSError('missing')), \
+             mock.patch.object(status, 'num', return_value=629), \
+             mock.patch.object(status, 'cpu_ticks', side_effect=[(100, 50), (200, 100)]), \
+             mock.patch.object(status.time, 'sleep'):
+            data = status.performance()
+        self.assertEqual(data['gpuMHz'], 629)
+        self.assertEqual(data['cpuPercent'], 50)
+        self.assertIsNone(data['compositorFps'])
+        self.assertIsNone(data['appFps'])
+
+    def test_import_has_no_device_side_effect(self):
+        out = subprocess.run([sys.executable, '-c', 'import frame_status'],
+                             cwd=Path(__file__).resolve().parents[1] / 'ui', capture_output=True, text=True)
+        self.assertEqual(out.returncode, 0, out.stderr)
+        self.assertEqual(out.stdout, '')
+
+
+class UtilityGuards(unittest.TestCase):
+    def test_all_paid_utilities_refused_before_steam_url(self):
+        with mock.patch.object(steam, 'Page') as page, mock.patch.object(steam, 'steam_url') as url:
+            page.return_value.eval.return_value = [{'id': i, 'owned': False} for i in steam.UTILITY_IDS]
+            for appid in set(steam.UTILITY_IDS) - set(steam.FREE_UTILITIES):
+                with self.assertRaisesRegex(steam.Fail, 'not owned'):
+                    steam.install(appid)
+            url.assert_not_called()
+
+    def test_unknown_ownership_fails_closed(self):
+        with mock.patch.object(steam, 'Page') as page, mock.patch.object(steam, 'steam_url') as url:
+            page.return_value.eval.side_effect = steam.Fail('library unavailable')
+            with self.assertRaises(steam.Fail):
+                steam.install(908520)
+            url.assert_not_called()
+
+    def test_owned_software_uses_existing_install_flow(self):
+        with mock.patch.object(steam, 'Page') as page, mock.patch.object(steam, 'steam_url') as url:
+            page.return_value.eval.side_effect = [[{'id': 908520, 'owned': True}], {'name': 'fpsVR', 'installed': True}]
+            self.assertEqual(steam.install(908520)['state'], 'installed')
+            url.assert_not_called()
+
+    def test_catalogue_separates_public_claims_ownership_and_reports(self):
+        data = utilities.catalogue([{'id': 1173510, 'owned': True}], [
+            {'package': 'com.android.app', 'rating': 'works', 'date': '2026-09-28'},
+            {'package': 'steam:908520', 'rating': 'broken', 'date': '2026-09-28', 'notes': 'test report'}])
+        rows = {r['id']: r for r in data['utilities']}
+        self.assertEqual(rows[1173510]['status'], 'untested')
+        self.assertTrue(rows[1173510]['canInstall'])
+        self.assertFalse(rows[908520]['canInstall'])
+        self.assertEqual(rows[908520]['status'], 'broken')
+        self.assertTrue(rows[1494460]['canInstall'])
+        self.assertFalse(rows[1009850]['free'])
+
+    @unittest.skipUnless(shutil.which('node'), 'Node needed to evaluate Steam JavaScript')
+    def test_ownership_js_includes_software_and_rejects_empty_library(self):
+        script = 'let appStore = {allApps: [{appid:908520,app_type:2,local_per_client_data:{installed:true}}]};\n'
+        script += 'console.log(JSON.stringify(' + steam.UTILITIES_JS + '));'
+        out = subprocess.run(['node', '-e', script], capture_output=True, text=True, check=True)
+        rows = {r['id']: r for r in json.loads(out.stdout)}
+        self.assertTrue(rows[908520]['owned'])
+        self.assertTrue(rows[908520]['installed'])
+        self.assertFalse(rows[1173510]['owned'])
+        out = subprocess.run(['node', '-e', 'let appStore={allApps:[]};' + steam.UTILITIES_JS], capture_output=True)
+        self.assertNotEqual(out.returncode, 0)
+
+
+class HUD(unittest.TestCase):
+    def test_invalid_action_never_reaches_frame(self):
+        with mock.patch.object(server, 'ssh') as ssh:
+            for action in ('hud-start; reboot', 'adjust', 'recenter', 'restore'):
+                with self.assertRaises(server.Failure) as err:
+                    server.vr({'action': action})
+                self.assertEqual(err.exception.status, 400)
+            ssh.assert_not_called()
+
+    def test_stop_wont_kill_reused_pid(self):
+        with tempfile.TemporaryDirectory() as tmp, mock.patch.object(vr, 'ROOT', Path(tmp)), \
+             mock.patch.object(vr, 'process_identity', return_value='different'), mock.patch.object(vr.os, 'kill') as kill:
+            (Path(tmp) / 'hud.json').write_text(json.dumps({'pid': 1234, 'start': 'old'}))
+            vr.panel('hud-stop')
+            kill.assert_not_called()
+            self.assertFalse((Path(tmp) / 'hud.json').exists())
+
+    def test_duplicate_start_does_not_spawn(self):
+        with tempfile.TemporaryDirectory() as tmp, mock.patch.object(vr, 'ROOT', Path(tmp)), \
+             mock.patch.object(vr, 'process_identity', return_value='same'), mock.patch.object(vr.subprocess, 'Popen') as popen:
+            (Path(tmp) / 'hud.json').write_text(json.dumps({'pid': 1234, 'start': 'same'}))
+            self.assertIn('already open', vr.panel('hud-start')['message'])
+            popen.assert_not_called()
+
+    def test_start_failure_cleans_up_process(self):
+        with tempfile.TemporaryDirectory() as tmp, mock.patch.object(vr, 'ROOT', Path(tmp)), \
+             mock.patch.object(vr.subprocess, 'Popen') as popen, \
+             mock.patch.object(vr.subprocess, 'check_output', side_effect=OSError('no display')):
+            popen.return_value.poll.return_value = None
+            with self.assertRaises(OSError):
+                vr.panel('hud-start')
+            popen.return_value.terminate.assert_called_once()
+            popen.return_value.wait.assert_called_once()

ui/frame_comfort.py

@@ -0,0 +1,264 @@
+"""Opt-in session worker ON the Frame; no root, extra apps, or power actions.
+
+One worker per user, shared by desktop and phone. State survives companion
+connections, not headset reboots. See docs/family-comfort.md for guarantees.
+"""
+import contextlib
+import json
+import os
+from pathlib import Path
+import subprocess
+import sys
+import time
+import uuid
+
+from frame_steam import Page
+from frame_status import battery, thermal_alerts, activity_level
+
+ROOT = Path.home() / '.local/state/frame-control/comfort'
+VRCMD = '/opt/steamvr/bin/linuxarm64/vrcmd'
+HOME_JS = """(async () => {
+  SteamUIStore.Navigate('/library/home');
+  await SteamClient.OpenVR.VROverlay.ShowDashboard('valve.steam.gamepadui.main');
+  if (!await SteamClient.OpenVR.VROverlay.IsDashboardVisible()) throw Error('Steam dashboard did not open');
+  return {path: location.pathname};
+})()"""
+
+
+def clock():
+    # CLOCK_BOOTTIME includes headset suspend; wall-clock corrections don't alter limits.
+    return time.clock_gettime(time.CLOCK_BOOTTIME)
+
+
+def boot():
+    return Path('/proc/sys/kernel/random/boot_id').read_text().strip()
+
+
+def validate(body):
+    if not isinstance(body, dict) or body.get('action') not in ('status', 'start', 'cancel'):
+        raise ValueError('Choose status, start or cancel')
+    if body['action'] == 'start':
+        for key, low, high in (('minutes', 1, 240), ('breakMinutes', 0, 120), ('stillMinutes', 0, 240)):
+            n = body.get(key)
+            if type(n) is not int or not low <= n <= high:
+                raise ValueError(f'{key} must be a whole number from {low} to {high}')
+        for key in ('batteryAlert', 'heatAlert'):
+            if type(body.get(key)) is not bool:
+                raise ValueError(f'{key} must be true or false')
+    return body
+
+
+def new_session(body, now, boot_id):
+    return {'id': uuid.uuid4().hex, 'boot': boot_id, 'active': True,
+            'options': {k: body[k] for k in ('minutes', 'breakMinutes', 'stillMinutes', 'batteryAlert', 'heatAlert')},
+            'started': now, 'deadline': now + body['minutes'] * 60, 'lastSample': now,
+            'used': 0, 'nextBreak': body['breakMinutes'] * 60, 'stillSent': False,
+            'warned': None, 'events': [], 'seq': 0, 'latched': [], 'error': None}
+
+
+def event(s, kind, message):
+    s['seq'] += 1
+    s['events'].append({'id': s['id'] + ':' + str(s['seq']), 'kind': kind,
+                        'message': message, 'time': time.time()})
+    s['events'] = s['events'][-40:]
+
+
+def notify(message):
+    r = subprocess.run([VRCMD, '--notify', 'Frame Control: ' + message],
+                       capture_output=True, text=True, timeout=20)
+    if r.returncode or 'succeeded' not in r.stdout:
+        raise RuntimeError('SteamVR could not show the reminder: ' + (r.stderr or r.stdout)[-300:])
+
+
+def home():
+    # A total process deadline also bounds a CDP peer that keeps sending events
+    # without completing the request. Keep cancellation ordered after this action.
+    r = subprocess.run([sys.executable, str(Path(__file__).resolve()), '--home'],
+                       capture_output=True, text=True, timeout=15)
+    if r.returncode:
+        raise RuntimeError('Steam Home failed: ' + (r.stdout or r.stderr)[-300:])
+
+
+def open_home():
+    page = Page()
+    try:
+        result = page.eval(HOME_JS)
+        if result.get('path') != '/routes/library/home':
+            raise RuntimeError('Steam did not navigate Home')
+    finally:
+        page.sock.close()
+
+
+def tick(s, now, sample, warn=notify, go_home=home, read_clock=clock):
+    """One deterministic step; injected actions/samples also exercise a fake Frame."""
+    if not s.get('active'):
+        return
+    o = s['options']
+    s['heartbeat'] = now
+    delta = max(0, min(30, now - s['lastSample']))
+    s['lastSample'] = now
+    level = sample.get('activity')
+    b = sample.get('battery') or {}
+    s['unavailable'] = []
+    if o['batteryAlert'] and b.get('percent') is None:
+        s['unavailable'].append('battery')
+    if o['heatAlert'] and sample.get('thermal') is None:
+        s['unavailable'].append('temperature')
+    if (o['breakMinutes'] or o['stillMinutes']) and level is None:
+        s['unavailable'].append('activity')
+    s['activity'] = level
+    if level in (1, 2):
+        s['used'] += delta
+    elif level is not None:
+        s['used'] = 0
+        s['nextBreak'] = o['breakMinutes'] * 60
+        s['stillSent'] = False
+    # Missing samples never count as time worn. No catch-up burst after a disconnect.
+    if now >= s['deadline'] - 60 and s['warned'] is None:
+        warn('One minute left. Save your progress; Steam Home will open.')
+        s['warned'] = max(now, read_clock())
+        event(s, 'warning', 'One minute left. Save your progress; Steam Home will open.')
+    if s['warned'] is not None and now >= max(s['deadline'], s['warned'] + 60):
+        go_home()
+        s['active'] = False
+        event(s, 'finished', 'Session ended: Steam Home opened. Your game is still running.')
+        return
+    if o['breakMinutes'] and s['used'] >= s['nextBreak']:
+        warn('Time for a break. Take off the headset and rest your eyes.')
+        event(s, 'break', 'Time for a break. Take off the headset and rest your eyes.')
+        s['nextBreak'] = s['used'] + o['breakMinutes'] * 60
+    if o['stillMinutes'] and not s['stillSent'] and s['used'] >= o['stillMinutes'] * 60:
+        event(s, 'still', f"Headset still active after {o['stillMinutes']} active minute(s). Check in with the wearer.")
+        s['stillSent'] = True
+    low = b.get('percent') is not None and b['percent'] <= 15 and b.get('status') == 'Discharging'
+    hot = sample.get('thermal')
+    for kind, enabled, value, message in (
+        ('battery', o['batteryAlert'], low if b else None, 'Frame battery is low (15% or less).'),
+        ('heat', o['heatAlert'], bool(hot) if hot is not None else None,
+         'Frame reports a hot/critical thermal trip or battery overheat. Ask the wearer to take a break.')):
+        if enabled and value and kind not in s['latched']:
+            event(s, kind, message)
+            s['latched'].append(kind)
+        elif value is False and kind in s['latched']:
+            # Battery hysteresis prevents repeated alerts around 15%.
+            if kind != 'battery' or b.get('status') == 'Charging' or (b.get('percent') or 0) >= 20:
+                s['latched'].remove(kind)
+
+
+@contextlib.contextmanager
+def locked(name='state.lock', nonblocking=False):
+    import fcntl  # only needed ON the Linux headset, not by desktop validation/tests
+    ROOT.mkdir(parents=True, exist_ok=True, mode=0o700)
+    with (ROOT / name).open('a') as f:
+        fcntl.flock(f, fcntl.LOCK_EX | (fcntl.LOCK_NB if nonblocking else 0))
+        yield f
+
+
+def read_state():
+    try:
+        state = json.loads((ROOT / 'session.json').read_text())
+        if not isinstance(state, dict):
+            raise ValueError('Saved session must be an object')
+        return state
+    except FileNotFoundError:
+        return {'active': False, 'events': []}
+    except (ValueError, UnicodeDecodeError):
+        # Preserve the unreadable state for diagnosis, then allow a new session.
+        (ROOT / 'session.json').replace(ROOT / ('session-unreadable-' + uuid.uuid4().hex + '.json'))
+        return {'active': False, 'events': [],
+                'error': 'Saved session was unreadable. Start a new session.'}
+
+
+def save(s):
+    p = ROOT / 'session.tmp'
+    p.write_text(json.dumps(s))
+    p.chmod(0o600)
+    p.replace(ROOT / 'session.json')
+
+
+def current(s, now):
+    if s.get('active') and s.get('boot') != boot():
+        s['active'] = False
+        s['error'] = 'Headset restarted. Start a new session.'
+    out = dict(s)
+    out['time'] = time.time()  # event age uses the Frame's clock, not the phone's
+    out['remaining'] = max(0, max(s.get('deadline', now), (s.get('warned') or 0) + 60) - now) if s.get('active') else 0
+    beat = s.get('heartbeat', s.get('started', now))  # a hand-edited state may lack either
+    if s.get('active') and now - beat > 90:
+        out['error'] = 'Session worker is not responding. Timer enforcement is unverified; cancel and start again.'
+    return out
+
+
+def watch():
+    try:
+        with locked('worker.lock', nonblocking=True) as worker:
+            while True:
+                with locked():
+                    s = current(read_state(), clock())
+                    if not s.get('active'):
+                        save(s)
+                        # Release ownership before state.lock: a concurrent start
+                        # cannot miss the gap between an old worker and its exit.
+                        import fcntl
+                        fcntl.flock(worker, fcntl.LOCK_UN)
+                        return
+                    try:
+                        b = battery()
+                        hot = thermal_alerts()
+                        if b and b.get('health') == 'Overheat':
+                            hot = (hot or []) + ['battery']
+                        tick(s, clock(), {'battery': b, 'thermal': hot, 'activity': activity_level()})
+                        s['error'] = None
+                    except Exception as e:
+                        error = str(e)
+                        if s.get('error') != error:
+                            event(s, 'error', 'Session action failed: ' + error)
+                        s['error'] = error
+                    save(s)
+                time.sleep(5)
+    except BlockingIOError:
+        pass  # another connection already started the single worker
+
+
+def command(body):
+    validate(body)
+    with locked():
+        s = current(read_state(), clock())
+        if body['action'] == 'start':
+            if s.get('active'):
+                raise ValueError('A session is already running. Cancel it before starting another.')
+            s = new_session(body, clock(), boot())
+            event(s, 'started', 'Session started. Steam Home opens at the limit; games are not closed.')
+        elif body['action'] == 'cancel':
+            s['active'] = False
+            s['error'] = None
+            if s.get('id'):
+                event(s, 'cancelled', 'Session timer and monitoring cancelled.')
+        save(s)
+        if body['action'] == 'start':
+            try:
+                subprocess.Popen([sys.executable, str(Path(__file__).resolve()), '--watch'],
+                                 stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
+                                 start_new_session=True, close_fds=True)
+            except OSError as e:
+                s['active'] = False
+                s['error'] = 'Could not start session worker: ' + str(e)
+                event(s, 'error', s['error'])
+                save(s)
+                raise
+        return current(s, clock())
+
+
+if __name__ == '__main__':
+    if sys.argv[1:] == ['--watch']:
+        watch()
+    else:
+        try:
+            if sys.argv[1:] == ['--home']:
+                open_home()
+                print(json.dumps({'home': True}))
+            else:
+                print(json.dumps(command(json.loads(sys.argv[1]))))
+        except Exception as e:
+            print(json.dumps({'error': str(e)}))
+            sys.exit(1)

ui/frame_input_agent.py

@@ -0,0 +1,469 @@
+"""Keyboard and pointer for the Steam Frame. Frame Control's server runs this ON the Frame.
+
+It speaks KDE Connect's LAN protocol (version 7, as in KDE Connect 24.02) to the
+Frame's own kdeconnectd, as a phone would, and forwards remote-input events read
+from stdin: one JSON object (or list of them) per line, each a KDE Connect
+"mousepad" request body such as {"dx": 4, "dy": -2} or {"key": "hello"}.
+KDE Connect does the typing and clicking.
+
+KDE Connect isn't installed on the Frame. Frame Control ships Valve's build of it
+for the Frame and the few libraries the Frame lacks (frame/kdeconnect); the server
+copies them over the SSH connection and this unpacks them into
+~/.local/share/frame-control/kdeconnect: no root, no internet, and SteamOS
+updates leave it alone.
+
+argv: client id, client name, the folder holding the packages, and a JSON list
+of [file, sha256] naming them (see frame/kdeconnect/packages.json).
+
+Status goes to stdout, one JSON object per line:
+{"state": "installing" | "starting" | "pairing" | "ready" | "error" | "need-packages", ...}.
+
+Standard library only: this runs on the Frame's own Python.
+"""
+import fcntl
+import hashlib
+import json
+import os
+import selectors
+import shutil
+import signal
+import socket
+import ssl
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+BASE = Path.home() / ".local/share/frame-control/kdeconnect"
+ROOT = BASE / "root"
+BRIDGE = BASE / "bridge"
+STAMP = ".frame-control-packages"  # in ROOT: which packages it was unpacked from
+PORT = int(os.environ.get("FRAME_INPUT_PORT", "1716"))
+UID = os.getuid()
+MOUSEPAD = "kdeconnect.mousepad.request"
+
+
+def say(state, **more):
+    print(json.dumps({"state": state, **more}), flush=True)
+
+
+def packet(kind, body):
+    return (json.dumps({"id": int(time.time() * 1000), "type": kind, "body": body}) + "\n").encode()
+
+
+# ---- KDE Connect on the Frame ------------------------------------------------
+
+SYSTEM_DAEMON = Path("/usr/lib/kdeconnectd")
+
+
+def stamp(packages):
+    """What ROOT/STAMP holds once these packages are unpacked (the server checks it too)."""
+    return "".join(f"{sha}  {name}\n" for name, sha in packages)
+
+
+def installed(packages):
+    try:
+        return (ROOT / STAMP).read_text() == stamp(packages)
+    except OSError:
+        return False
+
+
+def sha256(path):
+    digest = hashlib.sha256()
+    with open(path, "rb") as f:
+        for block in iter(lambda: f.read(1 << 20), b""):
+            digest.update(block)
+    return digest.hexdigest()
+
+
+def install(folder, packages):
+    """Unpack the packages the server copied to `folder` into ROOT, checking each one first."""
+    if not packages:
+        raise RuntimeError("This copy of Frame Control doesn't include KDE Connect")
+    say("installing", message="Unpacking KDE Connect on the Frame")
+    stage = BASE / "root.new"
+    shutil.rmtree(stage, ignore_errors=True)
+    stage.mkdir(parents=True)
+    for name, sha in packages:
+        path = Path(folder) / name
+        if not path.is_file():
+            raise RuntimeError(f"{name} didn't reach the Frame")
+        if sha256(path) != sha:
+            raise RuntimeError(f"{name} arrived damaged (its SHA-256 doesn't match)")
+        if subprocess.run(["tar", "--zstd", "-xf", str(path), "-C", str(stage)], capture_output=True).returncode:
+            subprocess.run(["bsdtar", "-xf", str(path), "-C", str(stage)], check=True, capture_output=True)
+    (stage / STAMP).write_text(stamp(packages))
+    stop_daemon()  # an older copy may still be running from ROOT
+    shutil.rmtree(ROOT, ignore_errors=True)
+    stage.rename(ROOT)
+
+
+def app_display():
+    """The X display that apps (not Steam's own VR menus) are on.
+
+    gamescope runs two Xwayland servers: on 2026-09-28 :0 held Steam's VR bar and
+    menus and ignored XTest pointer motion, while :1 held apps such as Chromium and
+    took it. Inferred to hold in general.
+    """
+    return ":1" if Path("/tmp/.X11-unix/X1").exists() else ":0"
+
+
+def daemon_env(daemon):
+    env = dict(os.environ, DBUS_SESSION_BUS_ADDRESS=f"unix:path=/run/user/{UID}/bus",
+               XDG_RUNTIME_DIR=f"/run/user/{UID}", DISPLAY=app_display(), QT_QPA_PLATFORM="xcb")
+    if str(daemon).startswith(str(ROOT)):
+        env.update(LD_LIBRARY_PATH=str(ROOT / "usr/lib"), QT_PLUGIN_PATH=str(ROOT / "usr/lib/qt6/plugins"),
+                   QML_IMPORT_PATH=str(ROOT / "usr/lib/qt6/qml"),
+                   XDG_DATA_DIRS=f"{ROOT / 'usr/share'}:/usr/share")
+    return env
+
+
+def listening():
+    try:
+        socket.create_connection(("127.0.0.1", PORT), 1).close()
+        return True
+    except OSError:
+        return False
+
+
+def our_daemons():
+    """Process ids of the kdeconnectd that Frame Control installed (never a system one)."""
+    pids = []
+    for proc in Path("/proc").iterdir():
+        if proc.name.isdigit():
+            try:
+                if os.readlink(proc / "exe").startswith(str(ROOT) + "/"):
+                    pids.append(int(proc.name))
+            except OSError:
+                pass
+    return pids
+
+
+def stop_daemon():
+    """Stop our kdeconnectd and wait until it's gone (so its port is closed too)."""
+    for sig, wait in ((signal.SIGTERM, 30), (signal.SIGKILL, 30)):  # tenths of a second
+        for pid in our_daemons():
+            try:
+                os.kill(pid, sig)
+            except ProcessLookupError:
+                pass
+        for _ in range(wait):
+            if not our_daemons() and not listening():
+                return
+            time.sleep(0.1)
+
+
+class NeedPackages(Exception):
+    """This build of KDE Connect isn't unpacked and the server didn't send it (it thought it was there)."""
+
+
+def ensure_daemon(folder, packages):
+    """Start KDE Connect: the Frame's own if it ever has one, else ours, unpacked first if needed.
+
+    A copy from another Frame Control version that another device is using right
+    now is left running and used as it is (they speak the same protocol); it's
+    replaced the next time nobody is using it.
+    """
+    system = SYSTEM_DAEMON.exists()
+    if not system and not installed(packages) and not (listening() and our_daemons()):
+        if not folder or not Path(folder).is_dir():
+            raise NeedPackages()
+        install(folder, packages)
+    if listening():
+        return
+    BASE.mkdir(parents=True, exist_ok=True)
+    daemon = SYSTEM_DAEMON if system else ROOT / "usr/lib/kdeconnectd"
+    say("starting", message="Starting KDE Connect on the Frame")
+    log = open(BASE / "kdeconnectd.log", "ab")
+    # Its own session, so it outlives this connection and serves the next one.
+    subprocess.Popen([str(daemon)], env=daemon_env(daemon), cwd=str(Path.home()), stdin=subprocess.DEVNULL,
+                     stdout=log, stderr=log, start_new_session=True)
+    for _ in range(40):
+        if listening():
+            return
+        time.sleep(0.25)
+    raise RuntimeError(f"KDE Connect didn't start; see {BASE / 'kdeconnectd.log'} on the Frame")
+
+
+def qdbus(device, method):
+    """Call a method on KDE Connect's D-Bus object for our device; its output, or None."""
+    env = dict(os.environ, DBUS_SESSION_BUS_ADDRESS=f"unix:path=/run/user/{UID}/bus")
+    try:
+        r = subprocess.run(["qdbus6", "org.kde.kdeconnect", f"/modules/kdeconnect/devices/{device}",
+                            f"org.kde.kdeconnect.device.{method}"], capture_output=True, text=True, env=env, timeout=5)
+    except (OSError, subprocess.TimeoutExpired):
+        return None
+    return r.stdout.strip() if r.returncode == 0 else None
+
+
+# ---- our identity --------------------------------------------------------------
+
+def identity(client):
+    """A device id and certificate for this client, made once and kept (pairing is tied to them).
+
+    Each computer or phone gets its own: KDE Connect keeps one connection per device,
+    so a shared identity would make them knock each other off.
+    """
+    folder = BRIDGE / client
+    folder.mkdir(parents=True, exist_ok=True)
+    id_file, cert, key = folder / "id", folder / "cert.pem", folder / "key.pem"
+    if not (id_file.exists() and cert.exists() and key.exists()):
+        device = "framecontrol_" + os.urandom(12).hex()  # KDE Connect wants 32-38 of [A-Za-z0-9_]
+        subprocess.run(["openssl", "req", "-x509", "-newkey", "ec", "-pkeyopt", "ec_paramgen_curve:prime256v1",
+                        "-nodes", "-days", "3650", "-subj", f"/O=KDE/OU=Kde connect/CN={device}",
+                        "-keyout", str(key), "-out", str(cert)], check=True, capture_output=True)
+        os.chmod(key, 0o600)
+        id_file.write_text(device)
+    return id_file.read_text().strip(), cert, key
+
+
+# ---- the link ------------------------------------------------------------------
+
+class Link:
+    """One TLS connection to kdeconnectd, as a paired device that sends remote input."""
+
+    def __init__(self, device, cert, key, port=PORT, name="Frame Control"):
+        self.device, self.buf, self.keyboard = device, b"", None
+        raw = socket.create_connection(("127.0.0.1", port), 5)
+        raw.sendall(packet("kdeconnect.identity", {
+            "deviceId": device, "deviceName": name, "deviceType": "phone", "protocolVersion": 7,
+            "incomingCapabilities": [], "outgoingCapabilities": [MOUSEPAD], "tcpPort": port}))
+        # KDE Connect's rule: whoever opened the TCP connection is the TLS server.
+        ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
+        ctx.load_cert_chain(str(cert), str(key))
+        ctx.verify_mode = ssl.CERT_NONE  # both sides are on this machine
+        self.sock = ctx.wrap_socket(raw, server_side=True)
+        self.sock.setblocking(False)
+
+    def send(self, body):
+        # Bounded: if KDE Connect stops reading, fail (and be restarted) rather than hang.
+        self.sock.settimeout(5)
+        try:
+            self.sock.sendall(packet(MOUSEPAD, body))
+        finally:
+            self.sock.setblocking(False)
+
+    def pair(self, paired, accept, timeout=15):
+        """Ask to pair and accept it on KDE Connect's side (we control both ends).
+
+        Only asks when not already paired: a pair request to a device that is
+        already paired makes KDE Connect unpair it.
+        """
+        if paired():
+            return
+        self.sock.settimeout(5)
+        self.sock.sendall(packet("kdeconnect.pair", {"pair": True}))
+        self.sock.setblocking(False)
+        end = time.time() + timeout
+        while time.time() < end:
+            accept()
+            self.read(0.5)
+            if paired():
+                return
+        raise RuntimeError("KDE Connect didn't accept the pairing")
+
+    def read(self, wait=0.0):
+        """Packets waiting from kdeconnectd; None once it has closed the connection."""
+        if wait:
+            sel = selectors.DefaultSelector()
+            sel.register(self.sock, selectors.EVENT_READ)
+            sel.select(wait)
+            sel.close()
+        try:
+            while True:
+                chunk = self.sock.recv(65536)
+                if not chunk:
+                    return None
+                self.buf += chunk
+        except (ssl.SSLWantReadError, BlockingIOError):
+            pass
+        out = []
+        while b"\n" in self.buf:
+            line, self.buf = self.buf.split(b"\n", 1)
+            if line.strip():
+                p = json.loads(line)
+                if p.get("type") == "kdeconnect.mousepad.keyboardstate":
+                    self.keyboard = bool(p.get("body", {}).get("state"))
+                out.append(p)
+        return out
+
+
+def events(line):
+    """The event bodies in one stdin line (an object or a list of objects)."""
+    try:
+        value = json.loads(line)
+    except ValueError:
+        return []
+    return [e for e in (value if isinstance(value, list) else [value]) if isinstance(e, dict) and e]
+
+
+def connect(device, cert, key, name):
+    link = Link(device, cert, key, name=name)
+    link.pair(lambda: qdbus(device, "isPaired") == "true", lambda: qdbus(device, "acceptPairing"))
+    link.read(0.5)  # its hello, including whether it can type
+    return link
+
+
+def client_args():
+    """argv: a folder-safe id for the computer or phone, the name KDE Connect shows for it,
+    the folder holding the packages, and their [file, sha256] list."""
+    client = sys.argv[1] if len(sys.argv) > 1 else "default"
+    client = "".join(c for c in client if c.isalnum() or c in "-_")[:64] or "default"
+    name = (sys.argv[2] if len(sys.argv) > 2 else "")[:60].strip()
+    folder = os.path.expanduser(sys.argv[3]) if len(sys.argv) > 3 else ""
+    try:
+        packages = [(str(f), str(h)) for f, h in json.loads(sys.argv[4])] if len(sys.argv) > 4 else []
+    except (ValueError, TypeError):
+        packages = []
+    return client, f"Frame Control ({name})" if name else "Frame Control", folder, packages
+
+
+def main():
+    client, name, folder, packages = client_args()
+    # A dropped ssh (the Frame slept, the app quit) hangs up on us: exit through the
+    # clean-up below rather than dying on the spot.
+    for sig in (signal.SIGHUP, signal.SIGTERM):
+        signal.signal(sig, lambda *_: sys.exit(0))
+    BASE.mkdir(parents=True, exist_ok=True)
+    # Every agent holds this lock shared while it runs. The last one out gets it
+    # exclusively and stops KDE Connect, so it runs, and shows up on the network,
+    # only while something is using the keyboard and trackpad.
+    clients = open(BASE / "clients.lock", "w")
+    fcntl.flock(clients, fcntl.LOCK_SH)
+    try:
+        return run(client, name, folder, packages)
+    finally:
+        # Finish the clean-up even if a second hang-up or TERM arrives meanwhile.
+        for sig in (signal.SIGHUP, signal.SIGTERM):
+            signal.signal(sig, signal.SIG_IGN)
+        fcntl.flock(clients, fcntl.LOCK_UN)
+        try:
+            fcntl.flock(clients, fcntl.LOCK_EX | fcntl.LOCK_NB)
+        except OSError:
+            pass  # another device is still using it
+        else:
+            with daemon_lock():
+                stop_daemon()
+
+
+def tidy_incoming(folder):
+    """Remove this start's copy of the packages, and others nobody is using.
+
+    Another copy goes only if no agent holds its .in-use lock and it's over an
+    hour old (so not one a server is still copying, before its agent starts).
+    """
+    incoming = BASE / "incoming"
+    if folder.startswith(str(incoming) + "/"):
+        shutil.rmtree(folder, ignore_errors=True)
+    try:
+        others = list(incoming.iterdir())
+    except OSError:
+        return
+    for other in others:
+        try:
+            if time.time() - other.stat().st_mtime < 3600:
+                continue
+            with open(other / ".in-use", "a") as lock:
+                fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
+                shutil.rmtree(other, ignore_errors=True)
+        except OSError:
+            pass  # in use, or already gone
+    try:
+        incoming.rmdir()
+    except OSError:
+        pass  # another start's copy is still there
+
+
+def hold_incoming(folder):
+    """Mark this start's copy as in use (tidy_incoming leaves it alone); the lock lasts as long as the file."""
+    if not folder.startswith(str(BASE / "incoming") + "/"):
+        return None
+    try:
+        lock = open(Path(folder) / ".in-use", "a")
+        fcntl.flock(lock, fcntl.LOCK_SH)
+        return lock
+    except OSError:
+        return None
+
+
+class daemon_lock:
+    """Installing, starting and restarting KDE Connect happen one agent at a time."""
+
+    def __enter__(self):
+        self.file = open(BASE / "daemon.lock", "w")
+        fcntl.flock(self.file, fcntl.LOCK_EX)
+
+    def __exit__(self, *_):
+        self.file.close()
+
+
+def run(client, name, folder, packages):
+    """Set up, pair and forward events. This start's copy of the packages stays
+    until it ends, however it ends: restarting KDE Connect may need to unpack it."""
+    held = hold_incoming(folder)
+    try:
+        return serve(client, name, folder, packages)
+    finally:
+        if held:
+            held.close()
+        tidy_incoming(folder)
+
+
+def serve(client, name, folder, packages):
+    try:
+        with daemon_lock():
+            ensure_daemon(folder, packages)
+        device, cert, key = identity(client)
+        say("pairing")
+        seen = our_daemons()
+        try:
+            link = connect(device, cert, key, name)
+        except (OSError, RuntimeError):
+            if not seen:
+                raise
+            # Ours, but not answering (KDE Connect 24.02 can hang, for one after
+            # unpairing a device that's offline): start it afresh, once. If another
+            # agent already replaced it, just use the new one.
+            say("starting", message="Restarting KDE Connect on the Frame")
+            with daemon_lock():
+                if set(our_daemons()) & set(seen):
+                    stop_daemon()
+                ensure_daemon(folder, packages)
+            link = connect(device, cert, key, name)
+    except NeedPackages:
+        say("need-packages")  # the server copies them and starts again
+        return 1
+    except (OSError, RuntimeError, subprocess.SubprocessError) as e:
+        say("error", message=str(e))
+        return 1
+    say("ready", keyboard=link.keyboard is not False)
+    stdin, pending = sys.stdin.fileno(), b""
+    sel = selectors.DefaultSelector()
+    sel.register(stdin, selectors.EVENT_READ)
+    sel.register(link.sock, selectors.EVENT_READ)
+    while True:
+        for key_, _ in sel.select(30):
+            if key_.fileobj == stdin:
+                chunk = os.read(stdin, 65536)  # raw reads: a buffered readline could strand lines select can't see
+                if not chunk:  # the server went away
+                    return 0
+                *lines, pending = (pending + chunk).split(b"\n")
+                try:
+                    for line in lines:
+                        for body in events(line):
+                            link.send(body)
+                except OSError as e:
+                    say("error", message=f"Lost KDE Connect: {e}")
+                    return 1
+            else:
+                packets = link.read()
+                if packets is None:
+                    say("error", message="KDE Connect closed the connection")
+                    return 1
+                if any(p.get("type") == "kdeconnect.pair" and not p.get("body", {}).get("pair") for p in packets):
+                    say("error", message="KDE Connect unpaired Frame Control")
+                    return 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())

ui/frame_panels.py

@@ -0,0 +1,261 @@
+"""Panel switcher. Runs on the Frame, either piped over SSH or installed with
+--open for its loopback-only headset page. Uses Valve's shipped vrcmd and
+Chromium, not an overlay app. Spatial layout limitations: docs/panels.md.
+"""
+import argparse
+import hmac
+import json
+import os
+from pathlib import Path
+import re
+import secrets
+import signal
+import subprocess
+import sys
+import time
+from http.server import BaseHTTPRequestHandler, HTTPServer
+
+VRCMD = '/opt/steamvr/bin/linuxarm64/vrcmd'
+PANEL_ID = 2000999030
+PANEL_KEY = 'valve.steam.desktopgame.' + str(PANEL_ID)
+KEY = re.compile(r'[A-Za-z0-9_.:-]{1,200}\Z')
+
+
+class PanelError(Exception):
+    pass
+
+
+def run(args):
+    try:
+        p = subprocess.run(args, capture_output=True, text=True, timeout=10,
+                           env={**os.environ, 'DISPLAY': ':0', 'LC_ALL': 'C.UTF-8'})
+    except (OSError, subprocess.TimeoutExpired) as e:
+        raise PanelError('The panel service did not answer: ' + str(e))
+    if p.returncode:
+        raise PanelError((p.stderr or p.stdout).strip()[-400:] or 'Panel command failed')
+    return p.stdout
+
+
+def parse_overlays(text):
+    """Only main dashboard panels, never their thumbnails, layers or cursors.
+    vrcmd output verified on SteamVR 2.18.1, BUILD_ID 20260925.6191901.
+    """
+    if '---- OVERLAYS ----' not in text:
+        raise PanelError('SteamVR did not return its panel list. Is the headset awake?')
+    panels = []
+    for line in text.splitlines():
+        m = re.fullmatch(r"'([^']+)' -- '(.*)', (.*?) VROverlayType_Dashboard_Main\s*", line)
+        if m and KEY.fullmatch(m[1]):
+            panels.append({'key': m[1], 'title': 'Panel switcher' if m[1] == PANEL_KEY else m[2] or m[1],
+                           'visible': 'not_visible' not in m[3]})
+    return panels
+
+
+def state():
+    return {'panels': parse_overlays(run([VRCMD, '--overlays']))}
+
+
+def focus(key):
+    if not isinstance(key, str) or not KEY.fullmatch(key):
+        raise PanelError('Choose an open panel.')
+    if key not in {p['key'] for p in state()['panels']}:
+        raise PanelError('That panel has closed. Refresh the list.')
+    run([VRCMD, '--showdashboard', key])
+    # vrcmd acknowledges dispatch, not final focus (a game or the user can
+    # switch again). Do not report a focus success without observing it.
+    return {'requested': key, 'message': 'Asked SteamVR to show the panel.'}
+
+
+PAGE = '''<!doctype html><html lang="en"><meta charset="utf-8">
+<meta name="viewport" content="width=device-width,initial-scale=1"><title>Panel switcher [fc-panels]</title>
+<style>body{background:#101b27;color:#eee;font:24px system-ui;margin:36px;max-width:1000px}
+h1{font-size:36px}button{font:inherit;padding:16px 24px;border:1px solid #546574;border-radius:10px;
+background:#23384b;color:white;cursor:pointer}button:focus-visible{outline:4px solid #66c0f4}
+#panels{display:grid;gap:14px;margin:24px 0}#panels button{text-align:left}p{color:#bac8d5}</style>
+<h1>Panel switcher</h1><p>Choose a panel to show it. Open this panel again from Steam's dashboard.</p>
+<button id="refresh">Refresh</button> <button id="close">Close switcher</button>
+<p id="status" role="status"></p><div id="panels"></div>
+<script>
+const token=location.hash.slice(1)||sessionStorage.getItem('panelKey')||'';
+if(token)sessionStorage.setItem('panelKey',token);history.replaceState(null,'',location.pathname);
+async function api(path,body){const r=await fetch(path,{method:body?'POST':'GET',
+headers:{'X-Panel-Key':token,'Content-Type':'application/json'},body:body?JSON.stringify(body):undefined});
+const s=await r.json();if(!r.ok)throw Error(s.error||'Panel request failed');return s;}
+const status=document.getElementById('status');
+async function refresh(){try{const s=await api('/panels');const list=document.getElementById('panels');list.replaceChildren();
+for(const p of s.panels){const b=document.createElement('button');b.textContent=p.title;
+b.onclick=async()=>{b.disabled=true;try{const r=await api('/focus',{key:p.key});status.textContent=r.message;}
+catch(e){status.textContent=e.message;}finally{b.disabled=false;}};list.append(b);}
+status.textContent=s.panels.length?'':'No open panels.';}catch(e){status.textContent=e.message;}}
+document.getElementById('refresh').onclick=refresh;
+document.getElementById('close').onclick=async()=>{try{await api('/close',{});window.close();}catch(e){status.textContent=e.message;}};
+refresh();
+</script></html>'''
+
+
+class Handler(BaseHTTPRequestHandler):
+    def setup(self):
+        super().setup()
+        self.connection.settimeout(5)
+
+    def log_message(self, *args):
+        pass  # never log the page's access key
+
+    def reply(self, code, value, html=False):
+        data = value.encode() if html else json.dumps(value).encode()
+        self.send_response(code)
+        self.send_header('Content-Type', 'text/html; charset=utf-8' if html else 'application/json')
+        self.send_header('Content-Length', str(len(data)))
+        self.send_header('Cache-Control', 'no-store')
+        self.send_header('X-Content-Type-Options', 'nosniff')
+        self.send_header('Referrer-Policy', 'no-referrer')
+        self.send_header('Content-Security-Policy', "default-src 'none'; script-src 'unsafe-inline'; style-src 'unsafe-inline'; connect-src 'self'; frame-ancestors 'none'")
+        self.end_headers()
+        self.wfile.write(data)
+
+    def allowed(self):
+        host = '127.0.0.1:' + str(self.server.server_port)
+        origin = self.headers.get('Origin')
+        return (self.headers.get('Host') == host and
+                (origin is None or origin == 'http://' + host) and
+                hmac.compare_digest(self.headers.get('X-Panel-Key', '').encode(), self.server.key.encode()))
+
+    def do_GET(self):
+        if self.path == '/':
+            return self.reply(200, PAGE, html=True)  # no data or access key in the page
+        if not self.allowed():
+            return self.reply(403, {'error': 'Open the switcher from Frame Control.'})
+        try:
+            if self.path == '/panels':
+                return self.reply(200, state())
+            self.reply(404, {'error': 'Not found'})
+        except PanelError as e:
+            self.reply(502, {'error': str(e)})
+
+    def do_POST(self):
+        if not self.allowed():
+            return self.reply(403, {'error': 'Forbidden'})
+        try:
+            size = int(self.headers.get('Content-Length', '0'))
+            if not 0 < size <= 1024:
+                raise ValueError('Invalid request size')
+            body = json.loads(self.rfile.read(size))
+            if not isinstance(body, dict):
+                raise ValueError('Expected an object')
+            if self.path == '/focus':
+                return self.reply(200, focus(body.get('key')))
+            if self.path == '/close':
+                self.server.closing = True
+                return self.reply(200, {'closed': True})
+            self.reply(404, {'error': 'Not found'})
+        except (ValueError, PanelError) as e:
+            self.reply(400, {'error': str(e)})
+
+
+def serve():
+    """Own only our Chromium profile and process group. No changes to Steam,
+    SteamVR, other Chromium sessions, or global power settings.
+    """
+    import fcntl  # only on the Frame; module/tests also import on Windows
+    folder = Path.home() / '.local/share/frame-control/panels'
+    folder.mkdir(parents=True, exist_ok=True, mode=0o700)
+    with (folder / 'lock').open('w') as lock:
+        try:
+            fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
+        except BlockingIOError:
+            print(json.dumps(focus(PANEL_KEY)), flush=True)
+            return
+        chrome = Path.home() / 'chromium-xr/chrome'
+        if chrome.is_file():
+            command = [str(chrome)]
+            profile = folder / 'chromium'
+        elif Path('/usr/bin/chromium').is_file():
+            command = ['/usr/bin/chromium']
+            profile = folder / 'chromium'
+        elif subprocess.run(['flatpak', 'info', 'org.chromium.Chromium'],
+                            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, timeout=10).returncode == 0:
+            command = ['flatpak', 'run', 'org.chromium.Chromium']
+            profile = Path.home() / '.var/app/org.chromium.Chromium/data/frame-panel-switcher'
+        else:
+            raise PanelError('The headset switcher needs Chromium. The companion switcher still works.')
+        server = HTTPServer(('127.0.0.1', 0), Handler)
+        server.key = secrets.token_urlsafe(32)
+        server.closing = False
+        server.timeout = .5
+        url = 'http://127.0.0.1:%d/#%s' % (server.server_port, server.key)
+        env = {**os.environ, 'DISPLAY': ':0'}
+        env.pop('WAYLAND_DISPLAY', None)
+        browser = subprocess.Popen([*command, '--ozone-platform=x11',
+                                    '--user-data-dir=' + str(profile),
+                                    '--no-first-run', '--no-default-browser-check',
+                                    '--password-store=basic', '--window-size=1200,800', '--app=' + url],
+                                   env=env, start_new_session=True, stdin=subprocess.DEVNULL,
+                                   stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+        def stop(signum, frame):
+            server.closing = True
+        signal.signal(signal.SIGTERM, stop)
+        win = None
+        try:
+            deadline = time.monotonic() + 30
+            while not win and time.monotonic() < deadline and browser.poll() is None:
+                server.handle_request()  # Chromium must fetch the page before it has a title
+                for line in run(['xwininfo', '-root', '-children']).splitlines():
+                    m = re.match(r'\s*(0x[0-9a-fA-F]+) .*\[fc-panels\]', line)
+                    if m:
+                        win = m[1]
+                        break
+            if not win:
+                raise PanelError('The switcher window did not appear within 30 seconds.')
+            run(['xprop', '-id', win, '-f', 'STEAM_GAME', '32c', '-set', 'STEAM_GAME', str(PANEL_ID)])
+            print(json.dumps({'message': 'Opened the panel switcher in the headset.'}), flush=True)
+            # Caller reads exactly one line, then disconnects; no more stdout.
+            while not server.closing and browser.poll() is None:
+                server.handle_request()
+                # Closing the last app window need not exit Chromium.
+                if win not in run(['xwininfo', '-root', '-children']):
+                    break
+        finally:
+            server.server_close()
+            if browser.poll() is None:
+                os.killpg(browser.pid, signal.SIGTERM)
+                try:
+                    browser.wait(timeout=5)
+                except subprocess.TimeoutExpired:
+                    os.killpg(browser.pid, signal.SIGKILL)
+                    browser.wait()
+
+
+def open_switcher():
+    # This command runs from an installed path, never from the SSH stdin copy.
+    proc = subprocess.Popen([sys.executable, str(Path(__file__).resolve()), '--serve'],
+                            stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL,
+                            text=True, start_new_session=True)
+    line = proc.stdout.readline()
+    proc.stdout.close()
+    if not line:
+        raise PanelError('The headset switcher could not start.')
+    result = json.loads(line)
+    if 'error' in result:
+        raise PanelError(result['error'])
+    return result
+
+
+def main():
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('--focus')
+    parser.add_argument('--open', action='store_true')
+    parser.add_argument('--serve', action='store_true')
+    args = parser.parse_args()
+    try:
+        if args.serve:
+            serve()
+        else:
+            print(json.dumps(open_switcher() if args.open else focus(args.focus) if args.focus else state()))
+    except (PanelError, OSError) as e:
+        print(json.dumps({'error': str(e)}), flush=True)
+        return 1
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())

ui/frame_status.py

@@ -1,9 +1,12 @@
 """Runs ON the Steam Frame (piped over SSH as `python3 -`); prints one JSON object.
 
 Read-only. Every probe is best effort: a missing tool or file gives null, not an
-error. Paths verified on SteamOS 0.3.0 (vr), build 20260922.
+error. Sensor paths verified on SteamOS 0.3.0; OpenVR timing on 0.4.1
+(build 20260925.6191901). See docs/vr-utilities.md.
 """
+import ctypes as C
 import glob
+import math
 import json
 import os
 import re
@@ -156,10 +159,131 @@ def flatpaks():
     return out
 
 
-uptime = read("/proc/uptime")
-procs = process_names()
-print(json.dumps({
+def thermal_alerts():
+    """Use the kernel's per-zone hot/critical trips, never a guessed chip limit."""
+    alerts, known = [], False
+    for z in glob.glob("/sys/class/thermal/thermal_zone*"):
+        t = num(z + "/temp", 0.001)
+        for trip in glob.glob(z + "/trip_point_*_type"):
+            if read(trip) not in ("hot", "critical"):
+                continue
+            limit = num(trip[:-4] + "temp", 0.001)
+            if t is not None and limit is not None and limit > 0:
+                known = True
+                if t >= limit:
+                    alerts.append({"zone": read(z + "/type"), "tempC": t, "limitC": limit})
+    return alerts if known else None
+
+
+def activity_level():
+    try:
+        rows = json.loads(run("/opt/steamvr/bin/linuxarm64/vrcmd", "--stats"))
+        if not isinstance(rows, list):
+            return None
+        return next((r.get("activity_level") for r in rows
+                     if isinstance(r, dict) and r.get("operation") == "status"), None)
+    except (ValueError, TypeError):
+        return None
+
+
+# OpenVR C ABI, ValveSoftware/openvr headers/openvr_capi.h (IVRCompositor_029).
+# Exact interface version: never guess an index against a different table.
+class Pose(C.Structure):
+    _fields_ = [('matrix', C.c_float * 12), ('velocity', C.c_float * 3),
+                ('angular', C.c_float * 3), ('result', C.c_int),
+                ('valid', C.c_bool), ('connected', C.c_bool)]
+
+
+class Timing(C.Structure):
+    _fields_ = [(n, C.c_uint32) for n in ('size', 'index', 'presents', 'mis', 'dropped', 'flags')] + [
+        ('time', C.c_double)] + [(n, C.c_float) for n in (
+        'gpuPre', 'gpuPost', 'gpu', 'compositorGpu', 'compositorCpu', 'idleCpu', 'interval',
+        'presentCpu', 'waitCpu', 'submit', 'posesCalled', 'posesReady', 'frameReady',
+        'updateStart', 'updateEnd', 'renderStart')] + [
+        ('pose', Pose), ('ready', C.c_uint32), ('first', C.c_uint32), ('transfer', C.c_float)]
+
+
+class OpenVR:
+    def __enter__(self):
+        self.lib = C.CDLL('/opt/steamvr/bin/linuxarm64/libopenvr_api.so')
+        self.lib.VR_InitInternal2.argtypes = [C.POINTER(C.c_int), C.c_int, C.c_char_p]
+        self.lib.VR_GetGenericInterface.argtypes = [C.c_char_p, C.POINTER(C.c_int)]
+        self.lib.VR_GetGenericInterface.restype = C.c_void_p
+        err = C.c_int()
+        self.lib.VR_InitInternal2(C.byref(err), 3, None)  # background: never start or keep SteamVR running
+        if err.value:
+            raise RuntimeError(f'SteamVR unavailable (init {err.value})')
+        return self
+
+    def __exit__(self, *args):
+        self.lib.VR_ShutdownInternal()
+
+    def function(self, interface, index, result, *args):
+        err = C.c_int()
+        ptr = self.lib.VR_GetGenericInterface(('FnTable:' + interface).encode(), C.byref(err))
+        if err.value or not ptr:
+            raise RuntimeError(f'{interface} unavailable ({err.value})')
+        return C.CFUNCTYPE(result, *args)(C.cast(ptr, C.POINTER(C.c_void_p))[index])
+
+
+def cpu_ticks():
+    line = (read('/proc/stat') or '').splitlines()
+    if not line or not line[0].startswith('cpu '):
+        return None
+    try:
+        # guest/guest_nice are already included in user/nice.
+        ticks = [int(x) for x in line[0].split()[1:9]]
+        return sum(ticks), ticks[3] + ticks[4]
+    except (ValueError, IndexError):
+        return None
+
+
+def cpu_percent(before, after):
+    if before is None or after is None or after[0] <= before[0]:
+        return None
+    return round(max(0, min(100, 100 * (1 - (after[1] - before[1]) / (after[0] - before[0])))), 1)
+
+
+def positive(value):
+    return round(value, 2) if math.isfinite(value) and value > 0 else None
+
+
+def timing_values(before, after):
+    dt, frames = after.time - before.time, after.index - before.index
+    if dt <= 0 or frames <= 0 or frames / dt > 1000:
+        return {}  # standby or old data; never present stale timings as live
+    return {'compositorFps': positive(frames / dt),
+            'frameMs': positive(1000 * dt / frames),
+            'appFps': positive(1000 / after.interval) if after.interval > 0 else None,
+            'gpuMs': positive(after.gpu), 'compositorCpuMs': positive(after.compositorCpu)}
+
+
+def performance():
+    out = {'compositorFps': None, 'frameMs': None, 'appFps': None,
+           'gpuMs': None, 'compositorCpuMs': None, 'cpuPercent': None,
+           'gpuMHz': num('/sys/class/devfreq/3d00000.gpu/cur_freq', 1e-6)}
+    before = cpu_ticks()
+    try:
+        with OpenVR() as vr:
+            get = vr.function('IVRCompositor_029', 10, C.c_bool, C.POINTER(Timing), C.c_uint32)
+            a, b = Timing(), Timing()
+            a.size = b.size = C.sizeof(Timing)
+            first = get(C.byref(a), 0)
+            time.sleep(0.2)
+            if first and get(C.byref(b), 0):
+                out.update(timing_values(a, b))
+    except (OSError, RuntimeError, AttributeError):  # AttributeError: a SteamVR build without these exports
+        time.sleep(0.2)
+    out['cpuPercent'] = cpu_percent(before, cpu_ticks())
+    return out
+
+
+def status():
+    uptime = read("/proc/uptime")
+    procs = process_names()
+    return {
         "time": time.time(),
+        "performance": performance(),
         "hostname": socket.gethostname(),
         "os": os_release(),
         "uptime": float(uptime.split()[0]) if uptime else None,
@@ -179,4 +303,12 @@ print(json.dumps({
         },
         "games": games(),
         "flatpaks": flatpaks(),
-}))
+    }
+
+
+def main():
+    print(json.dumps(status()))
+
+
+if __name__ == "__main__":
+    main()

ui/frame_steam.py

@@ -141,6 +141,21 @@ OWNED_JS = r"""
 })()
 """
 
+# Software has app_type 2, so utility ownership must not use OWNED_JS's games filter.
+# Steam prices checked 2026-09-28: OVR Advanced Settings is paid on Steam too.
+UTILITY_IDS = (1009850, 1173510, 1068820, 908520, 1494460)
+FREE_UTILITIES = (1494460,)
+UTILITIES_JS = """(() => {
+  const apps = appStore.allApps;
+  if (!apps || !apps.length) throw new Error("Steam library is not loaded; ownership is unknown");
+  return [1009850,1173510,1068820,908520,1494460].map(id => {
+    const a = apps.find(a => a.appid === id);
+    return {id, owned: !!a, installed: !!a?.local_per_client_data?.installed,
+            frame: a ? (a.steam_hw_compat_category_packed >> 8) & 3 : 0};
+  });
+})()"""
+
+
 WIZARD_JS = """SteamClient.Installs.GetInstallManagerInfo().then(i => ({
   state: i?.eInstallState ?? 0, app: i?.currentAppID ?? 0, need: i?.nDiskSpaceRequired || 0,
   free: i?.nDiskSpaceAvailable || 0, error: i?.eAppError, detail: i?.errorDetail }))"""
@@ -158,6 +173,10 @@ def owned():
 
 def install(appid):
     page = Page()
+    if appid in UTILITY_IDS and appid not in FREE_UTILITIES:
+        rows = page.eval(UTILITIES_JS)
+        if not any(r['id'] == appid and r['owned'] for r in rows):
+            raise Fail("This paid utility is not owned by the Frame account. No install or store action was taken.")
     app = page.eval(f"(a => a && {{name: a.display_name, installed: !!a.local_per_client_data?.installed}})"
                     f"(appStore.GetAppOverviewByAppID({appid}))")
     if app and app["installed"]:
@@ -216,6 +235,8 @@ def main():
         cmd = sys.argv[1] if len(sys.argv) > 1 else ""
         if cmd == "owned":
             out = owned()
+        elif cmd == "utilities":
+            out = {"utilities": Page().eval(UTILITIES_JS)}
         elif cmd in ("install", "store") and len(sys.argv) == 3 and sys.argv[2].isdigit():
             out = (install if cmd == "install" else store)(int(sys.argv[2]))
         else:

ui/frame_touch.py

@@ -0,0 +1,446 @@
+"""Touch and direct input for the Steam Frame's panels. Frame Control's server runs this ON the Frame.
+
+gamescope, the Frame's compositor, serves Valve's own input injection: an EIS
+socket (libei's server side), which Steam uses to feed it Remote Play input.
+This connects to it with libei, which is on the SteamOS image, and points,
+clicks, scrolls and types into the panel that has focus in the headset: the
+one the wearer last used. No install, and it reaches every panel, on either
+of gamescope's X displays (see docs/streaming.md).
+
+  python3 frame_touch.py focus   print the focused panel as JSON
+  python3 frame_touch.py panels  print every app panel as JSON, and which has focus
+  python3 frame_touch.py         read events on stdin, one JSON object (or list) per line:
+    {"fx": 0.5, "fy": 0.2, "window": 123, "display": ":1"}
+                                           pointer to that fraction of that panel; any event can
+                                           name its panel, and goes nowhere if another has focus
+    {"dx": 4, "dy": -2}                    pointer by that much
+    {"button": "left", "down": true}       left, right or middle; "down" false releases
+    {"scroll": [0, 120]}                   by pixels; positive y scrolls down
+    {"key": 30, "down": true}              a Linux (evdev) key code, as the page maps KeyboardEvent.code
+    {"text": "hello"}                      printable ASCII, typed on a US layout
+
+Status goes to stdout, one JSON object per line: {"state": "ready" | "error", ...}.
+Standard library only (ctypes for libei), like the rest of what runs on the Frame.
+"""
+import ctypes
+import json
+import os
+import select
+import subprocess
+import sys
+import time
+
+SOCKET = "/run/user/{uid}/gamescope-0-ei"  # filled in on the Frame (Windows has no getuid; the tests import this)
+BUTTONS = {"left": 0x110, "right": 0x111, "middle": 0x112}  # BTN_LEFT, BTN_RIGHT, BTN_MIDDLE
+SHIFT = 42  # KEY_LEFTSHIFT
+# Printable ASCII on a US layout: character -> (evdev key code, shifted).
+ROWS = [("1234567890-=", "!@#$%^&*()_+", 2), ("qwertyuiop[]", "QWERTYUIOP{}", 16),
+        ("asdfghjkl;'`", 'ASDFGHJKL:"~', 30), ("\\zxcvbnm,./", "|ZXCVBNM<>?", 43)]
+ASCII = {" ": (57, False), "\n": (28, False), "\t": (15, False)}
+for plain, shifted, first in ROWS:
+    for i, (a, b) in enumerate(zip(plain, shifted)):
+        ASCII[a], ASCII[b] = (first + i, False), (first + i, True)
+
+# libei's event types and device capabilities (libei.h, libei 1.4).
+EV_CONNECT, EV_DISCONNECT, EV_SEAT_ADDED, EV_DEVICE_ADDED, EV_DEVICE_REMOVED = 1, 2, 3, 5, 6
+EV_DEVICE_PAUSED, EV_DEVICE_RESUMED = 7, 8
+CAP_POINTER, CAP_ABSOLUTE, CAP_KEYBOARD, CAP_SCROLL, CAP_BUTTON = 1, 2, 4, 16, 32
+
+
+def say(state, **more):
+    print(json.dumps({"state": state, **more}), flush=True)
+
+
+# ---- which panel has focus -----------------------------------------------------
+
+def xprop_root(display, name):
+    try:
+        out = subprocess.run(["xprop", "-root", name], env=dict(os.environ, DISPLAY=display),
+                             capture_output=True, text=True, timeout=5).stdout
+    except (OSError, subprocess.SubprocessError):
+        return []
+    values = out.split("=", 1)[1] if "=" in out else ""
+    return [int(v) for v in values.replace(",", " ").split() if v.isdigit()]
+
+
+def window_info(display, window):
+    """Name and geometry of a window on one X display, or None if it isn't there."""
+    try:
+        which = ["-root"] if window == "root" else ["-id", str(window)]
+        out = subprocess.run(["xwininfo", *which], env=dict(os.environ, DISPLAY=display),
+                             capture_output=True, text=True, timeout=5).stdout
+    except (OSError, subprocess.SubprocessError):
+        return None
+    if "IsViewable" not in out:
+        return None
+    info = {}
+    for line in out.splitlines():
+        line = line.strip()
+        if line.startswith("xwininfo: Window id:"):
+            info["name"] = line.split('"', 1)[1].rsplit('"', 1)[0] if '"' in line else ""
+        for key, field in (("Absolute upper-left X:", "x"), ("Absolute upper-left Y:", "y"),
+                           ("Width:", "width"), ("Height:", "height")):
+            if line.startswith(key):
+                info[field] = int(line.split(":", 1)[1])
+    return info if "width" in info else None
+
+
+def displays():
+    return sorted(f":{n[1:]}" for n in os.listdir("/tmp/.X11-unix") if n[1:].isdigit())
+
+
+def window_pid(display, window):
+    try:
+        out = subprocess.run(["xprop", "-id", str(window), "_NET_WM_PID"], env=dict(os.environ, DISPLAY=display),
+                             capture_output=True, text=True, timeout=5).stdout
+    except (OSError, subprocess.SubprocessError):
+        return None
+    value = out.rsplit("=", 1)[-1].strip() if "=" in out else ""
+    return int(value) if value.isdigit() else None
+
+
+def locate(window, pid):
+    """The display a focusable window is on, with its name and geometry.
+
+    Window ids are per X server, so :0 and :1 can both have one; the pid gamescope
+    lists with it (GAMESCOPE_FOCUSABLE_WINDOWS) tells them apart.
+    """
+    found = []
+    for display in displays():
+        info = window_info(display, window)
+        if info:
+            found.append((display, info))
+    if len(found) > 1 and pid:
+        found = [f for f in found if window_pid(f[0], window) == pid] or found
+    if not found:
+        return None
+    display, info = found[0]
+    root = window_info(display, "root") or {}
+    return {"window": window, "display": display, **info,
+            "root": [root.get("width", info["width"]), root.get("height", info["height"])]}
+
+
+def focusable():
+    """gamescope's focusable windows as (window, app id, pid)."""
+    t = xprop_root(":0", "GAMESCOPE_FOCUSABLE_WINDOWS")
+    return [tuple(t[i:i + 3]) for i in range(0, len(t) - 2, 3)]
+
+
+def focus_display():
+    """The display of the focused window, from GAMESCOPE_FOCUS_DISPLAY on :0's root.
+
+    gamescope writes the name (":1") as 32-bit items, so its first four bytes land,
+    little-endian, in the first value: 12602 is 0x313A, ":1" (steamcompmgr.cpp;
+    seen 2026-09-29).
+    """
+    values = xprop_root(":0", "GAMESCOPE_FOCUS_DISPLAY")
+    if not values:
+        return None
+    name = (values[0] & 0xFFFFFFFF).to_bytes(4, "little").split(b"\0", 1)[0].decode("ascii", "replace")
+    return name if name[:1] == ":" and name[1:].isdigit() else None
+
+
+def focus_now():
+    """Just which window and display have focus: two property reads, for checking a press."""
+    window = (xprop_root(":0", "GAMESCOPE_FOCUSED_WINDOW") or [0])[0]
+    return (window or None, focus_display() if window else None)
+
+
+def focus():
+    """The panel that has focus in the headset: window, display, name and sizes (gamescope
+    publishes the window and its display on :0's root)."""
+    window = (xprop_root(":0", "GAMESCOPE_FOCUSED_WINDOW") or [0])[0]
+    if not window:
+        return {"window": None}
+    app, pid = next(((a, p) for w, a, p in focusable() if w == window), (None, None))
+    display = focus_display()
+    info = window_info(display, window) if display else None
+    if info:
+        root = window_info(display, "root") or {}
+        panel = {"window": window, "display": display, **info,
+                 "root": [root.get("width", info["width"]), root.get("height", info["height"])]}
+    else:
+        panel = locate(window, pid)  # no display published: tell them apart by pid
+    return {**panel, "app": app} if panel else {"window": None}
+
+
+def panels():
+    """Every app panel (gamescope's focusable windows), for watching one that hasn't focus."""
+    now = focus()
+    found = []
+    for window, app, pid in focusable():
+        panel = locate(window, pid)
+        if panel and panel["width"] > 1 and panel["height"] > 1 and \
+                not any(f["window"] == window and f["display"] == panel["display"] for f in found):
+            panel.pop("root", None)
+            found.append({**panel, "app": app, "focused": (window, panel["display"]) ==
+                          (now.get("window"), now.get("display"))})
+    return {"focus": now.get("window"), "focus_display": now.get("display"), "panels": found}
+
+
+def to_root(panel, fx, fy):
+    """A point given as a fraction of the panel, in the root coordinates gamescope's pointer uses.
+
+    gamescope fits each panel's window to its display, so a 1920x1080 window on a
+    1280x720 display takes pointer positions at two thirds scale (verified 2026-09-29).
+    """
+    rw, rh = panel["root"]
+    w, h = panel["width"], panel["height"]
+    s = min(rw / w, rh / h)
+    ox, oy = (rw - w * s) / 2, (rh - h * s) / 2
+    fx, fy = min(max(fx, 0.0), 1.0), min(max(fy, 0.0), 1.0)
+    return ox + fx * (w * s - 1), oy + fy * (h * s - 1)
+
+
+# ---- gamescope's input socket ----------------------------------------------------
+
+def libei():
+    L = ctypes.CDLL("libei.so.1")
+    vp, c = ctypes.c_void_p, ctypes
+    sig = {
+        "ei_new_sender": (vp, [vp]), "ei_configure_name": (None, [vp, c.c_char_p]),
+        "ei_setup_backend_socket": (c.c_int, [vp, c.c_char_p]), "ei_get_fd": (c.c_int, [vp]),
+        "ei_dispatch": (None, [vp]), "ei_get_event": (vp, [vp]), "ei_event_get_type": (c.c_int, [vp]),
+        "ei_event_unref": (vp, [vp]), "ei_event_get_seat": (vp, [vp]), "ei_event_get_device": (vp, [vp]),
+        "ei_device_has_capability": (c.c_bool, [vp, c.c_int]), "ei_now": (c.c_uint64, [vp]),
+        "ei_device_start_emulating": (None, [vp, c.c_uint32]), "ei_device_stop_emulating": (None, [vp]),
+        "ei_device_frame": (None, [vp, c.c_uint64]),
+        "ei_device_pointer_motion": (None, [vp, c.c_double, c.c_double]),
+        "ei_device_pointer_motion_absolute": (None, [vp, c.c_double, c.c_double]),
+        "ei_device_button_button": (None, [vp, c.c_uint32, c.c_bool]),
+        "ei_device_scroll_delta": (None, [vp, c.c_double, c.c_double]),
+        "ei_device_keyboard_key": (None, [vp, c.c_uint32, c.c_bool]),
+        "ei_unref": (vp, [vp]),
+    }
+    for name, (res, args) in sig.items():
+        f = getattr(L, name)
+        f.restype, f.argtypes = res, args
+    return L
+
+
+class Gamescope:
+    """One connection to gamescope's EIS socket and its virtual input device."""
+
+    def __init__(self):
+        self.L = L = libei()
+        self.ei = L.ei_new_sender(None)
+        L.ei_configure_name(self.ei, b"Frame Control")
+        if L.ei_setup_backend_socket(self.ei, SOCKET.format(uid=os.getuid()).encode()) != 0:
+            raise RuntimeError("Couldn't reach gamescope's input socket. Is the headset on?")
+        self.fd = L.ei_get_fd(self.ei)
+        self.device, self.sequence, self.held, self.keys, self.alive = None, 0, set(), set(), True
+
+    def pump(self, wait=0.0):
+        """Handle gamescope's events; False once it has disconnected."""
+        select.select([self.fd], [], [], wait)
+        self.L.ei_dispatch(self.ei)
+        alive = True
+        while True:
+            ev = self.L.ei_get_event(self.ei)
+            if not ev:
+                return alive
+            kind = self.L.ei_event_get_type(ev)
+            if kind == EV_SEAT_ADDED:
+                seat = self.L.ei_event_get_seat(ev)
+                # Variadic, ending in 0 (NULL): ask for everything we send.
+                self.L.ei_seat_bind_capabilities(ctypes.c_void_p(seat), *map(ctypes.c_int, (
+                    CAP_POINTER, CAP_ABSOLUTE, CAP_BUTTON, CAP_SCROLL, CAP_KEYBOARD, 0)))
+            elif kind == EV_DEVICE_RESUMED:
+                device = self.L.ei_event_get_device(ev)
+                if self.L.ei_device_has_capability(device, CAP_ABSOLUTE):
+                    self.sequence += 1
+                    self.L.ei_device_start_emulating(device, self.sequence)
+                    self.device = device
+                    # Releases that arrived while it was paused were dropped: let go of
+                    # everything now, so the headset and this agent agree nothing is held.
+                    if self.held or self.keys:
+                        self.release_all()
+            elif kind in (EV_DEVICE_PAUSED, EV_DEVICE_REMOVED):
+                if self.L.ei_event_get_device(ev) == self.device:
+                    self.device = None
+            elif kind == EV_DISCONNECT:
+                self.device, alive, self.alive = None, False, False
+            self.L.ei_event_unref(ev)
+
+    def wait_ready(self, timeout=5):
+        end = time.time() + timeout
+        while self.device is None and time.time() < end:
+            if not self.pump(0.1):
+                break
+        if self.device is None:
+            raise RuntimeError("gamescope closed its input socket" if not self.alive
+                               else "gamescope didn't offer an input device")
+
+    def frame(self):
+        self.L.ei_device_frame(self.device, self.L.ei_now(self.ei))
+        self.L.ei_dispatch(self.ei)
+
+    def move_to(self, x, y):
+        self.L.ei_device_pointer_motion_absolute(self.device, x, y)
+        self.frame()
+
+    def move_by(self, dx, dy):
+        self.L.ei_device_pointer_motion(self.device, dx, dy)
+        self.frame()
+
+    def button(self, name, down):
+        code = BUTTONS[name]
+        if down == (code in self.held):
+            return  # already in that state
+        self.L.ei_device_button_button(self.device, code, down)
+        self.frame()
+        (self.held.add if down else self.held.discard)(code)
+
+    def scroll(self, dx, dy):
+        self.L.ei_device_scroll_delta(self.device, dx, dy)
+        self.frame()
+
+    def key(self, code, down):
+        self.L.ei_device_keyboard_key(self.device, code, down)
+        self.frame()
+        (self.keys.add if down else self.keys.discard)(code)
+        # Paced: a burst of keys can reach the app out of order (seen 2026-09-29).
+        time.sleep(0.008)
+
+    def text(self, text):
+        for ch in text:
+            if ch not in ASCII:
+                continue
+            code, shifted = ASCII[ch]
+            if shifted:
+                self.key(SHIFT, True)
+            self.key(code, True)
+            self.key(code, False)
+            if shifted:
+                self.key(SHIFT, False)
+
+    def release_all(self):
+        """Let go of every button and key still down, so nothing stays held in the headset."""
+        for code in list(self.held):
+            name = next(n for n, c in BUTTONS.items() if c == code)
+            self.button(name, False)
+        for code in list(self.keys):
+            self.key(code, False)
+
+
+# ---- events from the server --------------------------------------------------------
+
+def events(line):
+    try:
+        data = json.loads(line)
+    except ValueError:
+        return []
+    return [e for e in (data if isinstance(data, list) else [data]) if isinstance(e, dict)]
+
+
+def number(value, limit=100000.0):
+    if isinstance(value, bool) or not isinstance(value, (int, float)) or value != value:
+        raise ValueError("not a number")
+    return max(-limit, min(limit, float(value)))
+
+
+STALE = [False]  # whether the last status said a tap went nowhere
+
+
+def aimed_elsewhere(event, panel):
+    """Whether an event names a panel that isn't the one with focus now."""
+    if "window" not in event:
+        return False
+    return (panel.get("window"), panel.get("display")) != (event.get("window"), event.get("display"))
+
+
+def apply(gs, event, panel):
+    """Send one event; returns the focused panel it checked against (looked up at most once a second).
+
+    Positions and presses name the panel they were meant for. If focus has moved to
+    another panel since, they go nowhere, so a tap can't land on the wrong one;
+    releases always go, so nothing stays held.
+    """
+    # Moves may use a focus reading up to a second old; anything that acts (a press, key,
+    # text or scroll) reads it afresh, so it can't land on a panel that took focus since.
+    acts = any(k in event for k in ("button", "key", "text", "scroll")) and event.get("down") is not False
+    if "window" in event:
+        if panel and acts and focus_now() == (panel.get("window"), panel.get("display")):
+            pass  # still the same panel (its geometry is re-read on the usual one-second schedule)
+        elif acts or not panel or time.time() - panel.get("_at", 0) > 1 or aimed_elsewhere(event, panel):
+            panel = {**focus(), "_at": time.time()}
+    stale = aimed_elsewhere(event, panel) if "window" in event else False
+    if stale and not (event.get("down") is False and ("button" in event or "key" in event)):
+        say("ready", focus=panel.get("window"), display=panel.get("display"), stale=True)  # the page re-syncs
+        STALE[0] = True
+        return panel
+    if STALE[0] and not stale:
+        # Anything that goes through (a trackpad move names no panel) means caught up: stop re-syncing.
+        STALE[0] = False
+        say("ready", focus=(panel or {}).get("window"), display=(panel or {}).get("display"))
+    if "fx" in event and panel and panel.get("window"):
+        gs.move_to(*to_root(panel, number(event["fx"], 1), number(event["fy"], 1)))
+    if "dx" in event or "dy" in event:
+        gs.move_by(number(event.get("dx", 0), 2000), number(event.get("dy", 0), 2000))
+    if event.get("button") in BUTTONS:
+        gs.button(event["button"], event.get("down") is not False)
+    if isinstance(event.get("scroll"), list) and len(event["scroll"]) == 2:
+        gs.scroll(number(event["scroll"][0], 5000), number(event["scroll"][1], 5000))
+    if isinstance(event.get("key"), int) and not isinstance(event["key"], bool) and 0 < event["key"] < 768:
+        gs.key(event["key"], event.get("down") is not False)
+    if isinstance(event.get("text"), str):
+        gs.text(event["text"][:500])
+    return panel
+
+
+def main():
+    if sys.argv[1:] == ["focus"]:
+        print(json.dumps(focus()))
+        return 0
+    if sys.argv[1:] == ["panels"]:
+        print(json.dumps(panels()))
+        return 0
+    try:
+        gs = Gamescope()
+        gs.wait_ready()
+    except (OSError, RuntimeError) as e:
+        say("error", message=str(e))
+        return 1
+    say("ready", focus=focus().get("window"))
+    stdin, pending, panel = sys.stdin.fileno(), b"", None
+    try:
+        while True:
+            ready, _, _ = select.select([stdin, gs.fd], [], [], 30)
+            if gs.fd in ready and not gs.pump():
+                say("error", message="gamescope closed its input socket")
+                return 1
+            if stdin not in ready:
+                continue
+            chunk = os.read(stdin, 65536)
+            if not chunk:
+                return 0  # the server went away
+            *lines, pending = (pending + chunk).split(b"\n")
+            for line in lines:
+                waited = False
+                for event in events(line):
+                    if gs.device is None and waited:
+                        continue  # still paused: don't wait again for each event of this batch
+                    if gs.device is None:
+                        waited = True
+                        # Paused (gamescope can pause the device): wait a moment; drop this
+                        # event if it doesn't come back. Only a disconnect ends the session.
+                        try:
+                            gs.wait_ready(2)
+                        except RuntimeError:
+                            if not gs.alive:
+                                raise
+                            continue
+                    try:
+                        panel = apply(gs, event, panel)
+                    except (ValueError, KeyError, TypeError, OSError):
+                        continue  # the server checks events; skip anything odd
+    except RuntimeError as e:
+        say("error", message=str(e))
+        return 1
+    finally:
+        if gs.device is not None:
+            gs.release_all()  # never leave a button held down in the headset
+
+
+if __name__ == "__main__":
+    sys.exit(main())

ui/frame_utilities.py

@@ -0,0 +1,29 @@
+"""Optional software, separate from Frame Control's own controls and HUD.
+
+Public reports are attributed leads, never local verification. Compatibility
+reports reuse the existing database with steam:<appid> package keys.
+"""
+REPORT = 'https://www.roadtovr.com/valve-steam-frame-review/'
+UTILITIES = (
+    (1009850, 'OVR Advanced Settings', False, 'No verified Frame result. Steam edition is paid; the developer also publishes free source/releases.', 'https://github.com/OpenVR-Advanced-Settings/OpenVR-AdvancedSettings'),
+    (1173510, 'XSOverlay', False, 'Supplied research reports Proton support, but the linked review did not corroborate it on recheck. Untested.', REPORT),
+    (1068820, 'OVR Toolkit', False, 'Supplied research reports Proton support, but the linked review did not corroborate it on recheck. Untested.', REPORT),
+    (908520, 'fpsVR', False, 'No Frame-specific result established in the supplied public research. Untested here.', 'https://store.steampowered.com/app/908520/'),
+    (1494460, 'Desktop+', True, 'Free, developer-published software. No verified Frame result.', 'https://github.com/elvissteinjr/DesktopPlus'),
+)
+
+
+def catalogue(ownership, reports):
+    owned = {r['id']: r for r in ownership}
+    out = []
+    for appid, name, free, note, source in UTILITIES:
+        local = owned.get(appid, {})
+        matches = [r for r in reports if r.get('package') == f'steam:{appid}' and r.get('rating') in ('works', 'issues', 'broken')]
+        latest = max(matches, key=lambda r: r.get('date') or '') if matches else None
+        out.append({'id': appid, 'name': name, 'free': free, 'owned': local.get('owned'),
+                    'installed': local.get('installed', False), 'frame': local.get('frame', 0),
+                    'status': latest['rating'] if latest else 'untested',
+                    'report': {k: latest.get(k) for k in ('notes', 'date', 'steamos', 'source')} if latest else None,
+                    'note': note, 'source': source,
+                    'canInstall': bool(free or local.get('owned'))})
+    return {'utilities': out}

ui/frame_vr.py

@@ -0,0 +1,126 @@
+"""Frame Control's optional performance HUD, using Frame platform tools only.
+
+Controls remain blocked pending idle-headset verification; no playspace writes
+are exposed. See docs/vr-utilities.md for the probe evidence and follow-up.
+"""
+import json
+import os
+from pathlib import Path
+import re
+import signal
+import subprocess
+import sys
+import time
+
+from frame_status import battery, max_temp, performance
+
+ROOT = Path.home() / '.local/share/frame-control/vr'
+APPID = '2000250025'
+
+
+def validate(body):
+    action = body.get('action')
+    if action not in ('hud-start', 'hud-stop'):
+        raise ValueError('VR action must be hud-start or hud-stop; playspace controls are not yet verified')
+    return action
+
+
+def save(path, data):
+    tmp = path.with_suffix('.tmp')
+    tmp.write_text(json.dumps(data))
+    os.replace(tmp, path)
+
+
+def process_identity(pid):
+    try:
+        stat = Path(f'/proc/{pid}/stat').read_text().rsplit(')', 1)[1].split()
+        args = Path(f'/proc/{pid}/cmdline').read_bytes().split(b'\0')
+        if b'frame-control-hud' in args and b'xterm' in Path(f'/proc/{pid}/comm').read_bytes():
+            return stat[19]  # field 22, starttime; protects against PID reuse
+    except OSError:
+        pass
+    return None
+
+
+def panel(action):
+    path = ROOT / 'hud.json'
+    saved = json.loads(path.read_text()) if path.exists() else {}
+    pid = saved.get('pid')
+    running = bool(pid and saved.get('start') and process_identity(pid) == saved['start'])
+    if action == 'hud-stop':
+        if running:
+            os.kill(pid, signal.SIGTERM)  # xterm closes the PTY; child exits on HUP
+        path.unlink(missing_ok=True)
+        return {'message': 'HUD closed.'}
+    if running:
+        return {'message': 'HUD is already open. Find Frame Control HUD in the SteamVR dashboard.'}
+    env = {**os.environ, 'DISPLAY': ':0'}
+    p = subprocess.Popen(['xterm', '-name', 'frame-control-hud', '-title', 'Frame Control HUD',
+                          '-fa', 'Monospace', '-fs', '20', '-geometry', '56x16',
+                          '-bg', '#171d25', '-fg', '#d6d7d8', '-e',
+                          sys.executable, str(ROOT / 'frame_vr.py'), 'hud'],
+                         env=env, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
+                         stderr=subprocess.DEVNULL, start_new_session=True)
+    try:
+        deadline = time.monotonic() + 8
+        while time.monotonic() < deadline and p.poll() is None:
+            tree = subprocess.check_output(['xwininfo', '-display', ':0', '-root', '-tree'],
+                                           text=True, timeout=2)
+            for w in re.findall(r'(0x[0-9a-f]+).*"frame-control-hud"', tree):
+                owner = subprocess.check_output(['xprop', '-display', ':0', '-id', w, '_NET_WM_PID'],
+                                                text=True, timeout=2)
+                if owner.strip().endswith('= ' + str(p.pid)):
+                    subprocess.run(['xprop', '-display', ':0', '-id', w, '-f', 'STEAM_GAME', '32c',
+                                    '-set', 'STEAM_GAME', APPID], check=True, timeout=2)
+                    identity = process_identity(p.pid)
+                    if not identity:
+                        raise RuntimeError('HUD process exited before its panel was ready')
+                    save(path, {'pid': p.pid, 'start': identity})
+                    return {'message': 'HUD opened. In SteamVR, select Frame Control HUD and Float in World or dock it to a controller.'}
+            time.sleep(.1)
+        raise RuntimeError('HUD did not create a window; is gamescope running?')
+    except BaseException:
+        if p.poll() is None:
+            p.terminate()
+            p.wait(timeout=3)
+        raise
+
+
+def hud():
+    def fmt(v, unit=''):
+        return 'unavailable' if v is None else f'{v:.1f}{unit}'
+    while True:
+        p, b = performance(), battery() or {}
+        lines = ['FRAME CONTROL HUD', '',
+                 'Compositor FPS    ' + fmt(p['compositorFps']),
+                 'Compositor period ' + fmt(p['frameMs'], ' ms'),
+                 'Application FPS   ' + fmt(p['appFps']),
+                 'Render GPU time   ' + fmt(p['gpuMs'], ' ms'),
+                 'Compositor CPU    ' + fmt(p['compositorCpuMs'], ' ms'),
+                 'System CPU        ' + fmt(p['cpuPercent'], '%'),
+                 'GPU clock         ' + fmt(p['gpuMHz'], ' MHz'),
+                 'Hottest sensor    ' + fmt(max_temp(), ' C'),
+                 'Battery           ' + fmt(b.get('percent'), '%'), '',
+                 time.strftime('Updated %H:%M:%S'), 'Close this window to stop.']
+        print('\033[2J\033[H' + '\n'.join(lines), flush=True)
+        time.sleep(2)
+
+
+def dispatch(body):
+    import fcntl  # Frame only; validation is also imported by Windows hosts
+    action = validate(body)
+    ROOT.mkdir(parents=True, exist_ok=True, mode=0o700)
+    with (ROOT / 'control.lock').open('a') as lock:
+        fcntl.flock(lock, fcntl.LOCK_EX)
+        return panel(action)
+
+
+if __name__ == '__main__':
+    if sys.argv[1:] == ['hud']:
+        hud()
+    else:
+        try:
+            print(json.dumps(dispatch(json.load(sys.stdin))))
+        except (OSError, ValueError, RuntimeError, subprocess.SubprocessError) as e:
+            print(json.dumps({'error': str(e)}))
+            sys.exit(1)

ui/server.py

@@ -10,9 +10,11 @@ Env:   FRAME_ALIAS (default frame)
        FRAME_LOCAL=1   run on the Frame itself (the iPhone app starts it there over SSH)
        FRAME_UI_KEY    required X-Frame-UI value (the iPhone app passes a fresh one)
        FRAME_DEVICE    what to call the device the page runs on (e.g. iPhone)
+       FRAME_CLIENT    a stable id for that device (keyboard-and-trackpad pairing is kept per id)
 """
 import argparse
 import base64
+import hashlib
 import http.client
 import json
 import os
@@ -42,14 +44,19 @@ import frame_assistant  # noqa: E402
 import frame_android  # noqa: E402
 import frame_apk_versions  # noqa: E402
 import frame_catalog  # noqa: E402
+import frame_comfort  # noqa: E402
 import frame_host  # noqa: E402
 import frame_macview  # noqa: E402
 import frame_media  # noqa: E402
+import frame_panels  # noqa: E402
 import frame_report  # noqa: E402
 import frame_store  # noqa: E402
 import frame_telemetry  # noqa: E402
 import frame_titles  # noqa: E402
 import frame_webinstall  # noqa: E402
+import frame_vr  # noqa: E402
+import frame_utilities  # noqa: E402
+import frame_compat_db  # noqa: E402
 
 frame_host.trust_bundled_cas()
 
@@ -62,6 +69,8 @@ if LOCAL:
     os.environ["PATH"] = f"{HERE / 'local-bin'}{os.pathsep}{os.environ.get('PATH', '')}"
 UI_KEY = os.environ.get("FRAME_UI_KEY") or "1"
 DEVICE = os.environ.get("FRAME_DEVICE") or "phone"
+# What the Frame's KDE Connect calls this device (keyboard and trackpad).
+INPUT_NAME = DEVICE if LOCAL else socket.gethostname().split(".")[0]
 FRAME = os.environ.get("FRAME_ALIAS", "frame")
 if not re.fullmatch(r"[A-Za-z0-9][A-Za-z0-9._-]*", FRAME):
     sys.exit(f"FRAME_ALIAS must be a plain host alias, not {FRAME!r}")
@@ -266,6 +275,37 @@ def status(_body):
     return s
 
 
+def comfort(body):
+    try:
+        frame_comfort.validate(body)
+    except ValueError as e:
+        raise Failure(str(e), 400)
+    # Content-addressed, user-only helper bundle. Desktop and phone use the same
+    # on-headset state/lock; no listener, service registration or third-party app.
+    import hashlib
+    files = {name: (HERE / name).read_text() for name in
+             ("frame_comfort.py", "frame_status.py", "frame_steam.py")}
+    version = hashlib.sha256(json.dumps(files, sort_keys=True).encode()).hexdigest()[:16]
+    script = """import json, os, pathlib, subprocess, sys
+os.umask(0o077)
+files = %r
+root = pathlib.Path.home() / '.cache/frame-control/comfort' / %r
+root.mkdir(parents=True, exist_ok=True)
+for name, source in files.items():
+    path = root / name
+    if not path.exists():
+        tmp = root / (name + '.' + str(os.getpid()))
+        tmp.write_text(source)
+        tmp.replace(path)
+r = subprocess.run([sys.executable, str(root / 'frame_comfort.py'), %r], capture_output=True, text=True)
+print(r.stdout, end='')
+""" % (files, version, json.dumps(body))
+    out = json.loads(ssh("python3 -", stdin=script, timeout=65))
+    if out.get("error") and "active" not in out:
+        raise Failure(out["error"], 409)
+    return out
+
+
 def headset_view():
     """Both eyes as SteamVR composites them (see frame_vrshot.py); PNG bytes."""
     # `timeout`: VR_Init can block if SteamVR is restarting.
@@ -396,6 +436,7 @@ _stream_proc = None
 
 
 def stream_command(query):
+    """The ffmpeg that streams H.264: the headset view, or one panel's own window (src=panel)."""
     q = parse_qs(query)
     try:
         height = int((q.get("h") or ["720"])[0])
@@ -405,6 +446,16 @@ def stream_command(query):
     if height not in STREAM_HEIGHTS or fps not in STREAM_FPS:
         raise Failure(f"h must be one of {STREAM_HEIGHTS} and fps one of {STREAM_FPS}", 400)
     rate = 3 if height == 720 else 6  # Mbit/s
+    if q.get("src") == ["panel"]:
+        # The panel's own pixels (x11grab of its window: gamescope keeps them), fitted
+        # to the height asked for. It stays still however the wearer moves their head.
+        window, display = panel_target(q)
+        return (f"DISPLAY={display} ffmpeg -hide_banner -loglevel error -nostdin -f x11grab -framerate {fps} "
+                f"-window_id {window} -i {display} "
+                f"-vf \"scale=-2:'trunc(min({height},ih)/2)*2',format=yuv420p\" -c:v libx264 -preset ultrafast "
+                f"-tune zerolatency -g {fps * 2} -bf 0 -b:v {rate}M -maxrate {rate}M -bufsize {rate // 2 or 1}M "
+                f"-x264-params aud=1:repeat-headers=1 -f h264 - & p=$!; "
+                f"exec >&-; cat >/dev/null; kill $p 2>/dev/null; wait $p")
     return (f"[ -e {STREAM_DEVICE} ] || {{ echo 'No headset view device ({STREAM_DEVICE}). Is SteamVR running?' >&2; exit 3; }}; "
             f"ffmpeg -hide_banner -loglevel error -nostdin -f v4l2 -video_size 1920x1080 -i {STREAM_DEVICE} "
             f"-vf fps={fps},scale=-2:{height},format=yuv420p -c:v libx264 -preset ultrafast -tune zerolatency "
@@ -457,6 +508,27 @@ def steam(body):
     return res
 
 
+def vr(body):
+    try:
+        action = frame_vr.validate(body)
+    except ValueError as e:
+        raise Failure(str(e), 400)
+    sources = {name: (HERE / (name + '.py')).read_text() for name in ('frame_status', 'frame_vr')}
+    script = "import sys, types, json, os\n"
+    for name, source in sources.items():
+        script += f"m = types.ModuleType({name!r}); sys.modules[{name!r}] = m\nexec({source!r}, m.__dict__)\n"
+    # Only the optional HUD needs files: its terminal child survives this SSH call.
+    if action == 'hud-start':
+        script += "m.ROOT.mkdir(parents=True, exist_ok=True, mode=0o700)\n"
+        for name, source in sources.items():
+            script += f"p = m.ROOT / {name + '.py'!r}; t = p.with_suffix('.' + str(os.getpid()) + '.tmp')\nt.write_text({source!r}); os.replace(t, p)\n"
+    script += f"try:\n print(json.dumps(m.dispatch({body!r})))\nexcept Exception as e:\n print(json.dumps({{'error': str(e)}}))\n"
+    result = json.loads(ssh('python3 -', stdin=script, timeout=20))
+    if result.get('error'):
+        raise Failure(result['error'])
+    return result
+
+
 def steam_search(query):
     q = parse_qs(query)
     cc = (q.get("cc") or [""])[0].upper()
@@ -522,6 +594,433 @@ def clipboard(body):
     return {"message": ssh(PASTE_CMD, stdin=text, timeout=30).strip()}
 
 
+# ---- keyboard and pointer (KDE Connect on the Frame, see frame_input_agent.py) ----
+
+INPUT_FLAGS = ("singleclick", "doubleclick", "middleclick", "rightclick", "singlehold", "singlerelease",
+               "scroll", "ctrl", "alt", "shift", "super")
+INPUT_MOVE_LIMIT = 2000  # pixels per event
+INPUT_TEXT_LIMIT = 500  # characters per event
+INPUT_BATCH_LIMIT = 200  # events per request
+
+
+def input_event(event):
+    """A KDE Connect remote-input body with only the fields it knows, in range."""
+    if not isinstance(event, dict):
+        raise Failure("each input event must be an object", 400)
+    out = {}
+    for name in ("dx", "dy"):
+        value = event.get(name)
+        if value is None:
+            continue
+        if isinstance(value, bool) or not isinstance(value, (int, float)) or value != value:
+            raise Failure(f"{name} must be a number", 400)
+        out[name] = max(-INPUT_MOVE_LIMIT, min(INPUT_MOVE_LIMIT, round(float(value), 2)))
+    for name in INPUT_FLAGS:
+        if event.get(name) is True:
+            out[name] = True
+    key = event.get("key")
+    if key is not None:
+        if not isinstance(key, str) or not 0 < len(key) <= INPUT_TEXT_LIMIT:
+            raise Failure(f"key must be text of 1 to {INPUT_TEXT_LIMIT} characters", 400)
+        out["key"] = key
+    special = event.get("specialKey")
+    if special is not None:
+        # KDE Connect's numbering: 1 Backspace … 14 Escape, 21-32 F1-F12.
+        if isinstance(special, bool) or not isinstance(special, int) or not 1 <= special <= 32:
+            raise Failure("specialKey must be a whole number from 1 to 32", 400)
+        out["specialKey"] = special
+    if not set(out) - {"ctrl", "alt", "shift", "super"}:
+        raise Failure("input event has nothing to do", 400)
+    return out
+
+
+def input_client():
+    """A stable id for this device, so KDE Connect on the Frame keeps its pairing apart.
+
+    The iPhone app passes one (FRAME_CLIENT). A computer makes one the first time
+    and keeps it: host names alone can clash (desk.home and desk.office).
+    """
+    if os.environ.get("FRAME_CLIENT"):
+        return os.environ["FRAME_CLIENT"]
+    if LOCAL:
+        return DEVICE
+    path = frame_host.data_dir("input-client-id")
+    try:
+        saved = path.read_text().strip()
+        if re.fullmatch(r"[A-Za-z0-9_-]{4,64}", saved):
+            return saved
+    except OSError:
+        pass
+    made = (re.sub(r"[^A-Za-z0-9-]", "", INPUT_NAME)[:24] or "computer") + "-" + secrets.token_hex(4)
+    try:
+        path.parent.mkdir(parents=True, exist_ok=True)
+        path.write_text(made)
+    except OSError:
+        pass  # still works this time; it pairs again next time
+    return made
+
+
+# KDE Connect for the Frame, as Frame Control ships it (frame/kdeconnect/NOTICE.md).
+KDECONNECT = HERE.parent / "frame" / "kdeconnect"
+KDECONNECT_HOME = ".local/share/frame-control/kdeconnect"
+
+
+def kdeconnect_packages():
+    """[(file, sha256), ...] from frame/kdeconnect/packages.json; [] if it's missing."""
+    try:
+        manifest = json.loads((KDECONNECT / "packages.json").read_text())
+        return [(p["file"], p["sha256"]) for p in manifest["packages"]]
+    except (OSError, ValueError, KeyError, TypeError):
+        return []
+
+
+def kdeconnect_stamp(packages):
+    """What the agent writes once these are unpacked (frame_input_agent.stamp)."""
+    return "".join(f"{sha}  {name}\n" for name, sha in packages)
+
+
+def file_sha256(path):
+    digest = hashlib.sha256()
+    with open(path, "rb") as f:
+        for block in iter(lambda: f.read(1 << 20), b""):
+            digest.update(block)
+    return digest.hexdigest()
+
+
+class InputAgent:
+    """frame_input_agent.py running on the Frame, fed events over one long-lived ssh.
+
+    Before starting it, copies KDE Connect to the Frame if it isn't there yet. The
+    agent unpacks it, pairs, and reports its state ({"state": "off" | "installing" |
+    "starting" | "pairing" | "ready" | "error"}).
+    """
+
+    def __init__(self, source=HERE / "frame_input_agent.py", packages=None):
+        self.source, self.proc, self.lock, self.write_lock = source, None, threading.Lock(), threading.Lock()
+        self.packages = kdeconnect_packages() if packages is None else packages
+        # generation counts stop()s; launching is the generation a launch is under way for.
+        self.status, self.launching, self.generation = {"state": "off"}, None, 0
+
+    def command(self, folder=""):
+        code = base64.b64encode(self.source.read_bytes()).decode()
+        client = input_client()
+        return ("python3 -u -c " + shlex.quote(
+            f"import base64;exec(compile(base64.b64decode('{code}'),'frame_input_agent','exec'))")
+            + f" {shlex.quote(client)} {shlex.quote(INPUT_NAME)} {shlex.quote(folder)}"
+            + f" {shlex.quote(json.dumps(self.packages, separators=(',', ':')))}")
+
+    def deliver(self, report, force=False):
+        """Where the agent finds the packages on the Frame, copying them there first if needed.
+
+        On the Frame itself (the iPhone app) they came with the bundle. Otherwise they
+        go over the SSH connection, unless the Frame already has them unpacked (`force`:
+        the agent found it didn't after all).
+        """
+        if LOCAL:
+            return str(KDECONNECT / "packages")
+        if not self.packages:
+            return ""  # nothing to copy (the agent says so if it needed them)
+        if not force:
+            # Bytes, so Windows doesn't turn the stamp's line ends into CRLF.
+            have = ssh(f"{{ test -x /usr/lib/kdeconnectd || cmp -s - {KDECONNECT_HOME}/root/.frame-control-packages; }}"
+                       " && echo yes || true", stdin=kdeconnect_stamp(self.packages).encode(), text=False, timeout=20)
+            if have.strip() == b"yes":
+                return ""
+        # A folder of its own: a cancelled start's agent may still be cleaning up another.
+        folder = f"{KDECONNECT_HOME}/incoming/{secrets.token_hex(8)}"
+        ssh(f"mkdir -p {folder}", timeout=20)
+        try:
+            for name, sha in self.packages:
+                path = KDECONNECT / "packages" / name
+                if not path.is_file() or file_sha256(path) != sha:
+                    raise Failure(f"{name} is missing or damaged in this copy of Frame Control"
+                                  " (a build runs app/build/fetch-deps.js to add it)", 500)
+                report(f"Copying KDE Connect to the Frame ({name.rsplit('-', 3)[0]})")
+                quoted = shlex.quote(name)
+                ssh(f"cd {folder} && cat > {quoted}.part && mv {quoted}.part {quoted}",
+                    stdin=path.read_bytes(), text=False, timeout=600)
+        except (Failure, OSError):
+            self.discard(folder)  # a partial copy is no use to anyone
+            raise
+        return f"~/{folder}"
+
+    def discard(self, folder):
+        """Remove a copy no agent will take over (best effort; agents tidy up old ones too)."""
+        folder = folder.removeprefix("~/")
+        if folder.startswith(f"{KDECONNECT_HOME}/incoming/") and not LOCAL:
+            try:
+                ssh(f"rm -rf {folder}", timeout=20)
+            except (Failure, OSError):
+                pass  # never let tidying up get in the way of reporting and retrying
+
+    def start(self):
+        with self.lock:
+            if self.launching == self.generation or (self.proc and self.proc.poll() is None):
+                return
+            # (A launch from before a stop() may still be finishing; it ends itself.)
+            self.launching, self.status = self.generation, {"state": "starting"}
+            generation = self.generation
+        threading.Thread(target=self._launch, args=(generation,), daemon=True).start()
+
+    def _launch(self, generation, force=False):
+        try:
+            self._launch_once(generation, force)
+        except Exception as e:  # whatever went wrong, never leave it stuck "starting"
+            with self.lock:
+                if self.launching == generation:
+                    self.launching = None
+                if self.generation == generation and self.status.get("state") in ("starting", "installing"):
+                    self.status = {"state": "error", "message": f"Couldn't start the keyboard and trackpad: {e}"}
+
+    def _launch_once(self, generation, force):
+        def report(message):
+            with self.lock:
+                if self.generation == generation:
+                    self.status = {"state": "installing", "message": message}
+        folder = ""
+        try:
+            errors = tempfile.TemporaryFile()
+            ensure_master()
+            folder = self.deliver(report, force)
+            with self.lock:
+                stopped = self.generation != generation
+            if stopped:  # turned off while copying
+                raise Failure("stopped")
+            proc = subprocess.Popen([*SSH, FRAME, self.command(folder)], stdin=subprocess.PIPE,
+                                    stdout=subprocess.PIPE, stderr=errors)
+        except (Failure, OSError) as e:
+            self.discard(folder)  # no agent will take the copy over
+            message = str(e)
+            friendly = unreachable(message)
+            with self.lock:
+                if self.launching == generation:
+                    self.launching = None
+                if self.generation == generation:
+                    self.status = {"state": "error", "message": friendly or message,
+                                   **({"offline": True} if friendly else {})}
+            return
+        _live_tunnels.add(proc)
+        with self.lock:
+            if self.launching == generation:
+                self.launching = None
+            stale = self.generation != generation
+            if not stale:
+                self.proc = proc
+        if stale:  # turned off meanwhile
+            proc.terminate()
+        wanted, heard = self._watch(proc, errors, retry=not force)
+        if not heard:
+            # The agent never started (or was stopped first), so it can't tidy the copy up.
+            self.discard(folder)
+        if wanted and not force:
+            # It needed the packages after all (another device changed what's
+            # installed after we looked): copy them and start once more.
+            with self.lock:
+                # Unless a start() already took over (it launches, and copies if still needed).
+                if self.proc is not proc or self.generation != generation or self.launching is not None:
+                    return
+                self.proc, self.launching, self.status = None, generation, {"state": "starting"}
+            self._launch(generation, force=True)
+
+    def _watch(self, proc, errors, retry=False):
+        """Follow the agent's status until it exits. Returns whether it asked for the
+        packages (`retry`: the caller will send them, so that isn't an error yet), and
+        whether it said anything at all (then it holds its copy and tidies it up)."""
+        wanted = heard = False
+        for line in proc.stdout:
+            try:
+                status = json.loads(line)
+            except ValueError:
+                continue
+            if isinstance(status, dict) and isinstance(status.get("state"), str):
+                heard = True
+                if status["state"] == "need-packages":
+                    wanted = True
+                    continue
+                with self.lock:
+                    if self.proc is proc:
+                        self.status = status
+        proc.wait()
+        _live_tunnels.discard(proc)
+        try:
+            errors.seek(0)
+            detail = strip_ansi(errors.read().decode(errors="replace")).strip()
+        except OSError:
+            detail = ""
+        with self.lock:
+            if self.proc is proc and self.status.get("state") != "error" and not (wanted and retry):
+                message = detail.splitlines()[-1] if detail else "The connection to the Frame ended"
+                if wanted:
+                    message = "KDE Connect didn't reach the Frame"
+                friendly = unreachable(message)
+                self.status = {"state": "error", "message": friendly or message, **({"offline": True} if friendly else {})}
+        return wanted, heard
+
+    def send(self, events):
+        """Forward events if the agent is ready; start it if it isn't running.
+
+        Returns the state, with "sent" saying whether the events went; if not,
+        the page keeps them and sends them again once the state is "ready".
+        """
+        with self.lock:
+            proc, ready = self.proc, self.status.get("state") == "ready"
+        sent = False
+        if not (proc and proc.poll() is None):
+            self.start()
+        elif ready and events:
+            try:
+                # One writer at a time: two devices sending at once mustn't tear a line.
+                with self.write_lock:
+                    proc.stdin.write((json.dumps(events) + "\n").encode())
+                    proc.stdin.flush()
+                sent = True
+            except (BrokenPipeError, OSError, ValueError):
+                pass  # _watch reports how it ended
+        with self.lock:
+            return {**self.status, "sent": sent}
+
+    def stop(self):
+        with self.lock:
+            proc, self.proc, self.status = self.proc, None, {"state": "off"}
+            self.generation += 1
+        if proc and proc.poll() is None:
+            proc.terminate()
+
+
+_input = InputAgent()
+
+
+def licenses():
+    """The notices and licence texts for what Frame Control ships (the About dialog)."""
+    found = [("Third-party notices", HERE.parent / "THIRD_PARTY_NOTICES.md"), ("KDE Connect for the Frame", KDECONNECT / "NOTICE.md"),
+             ("Frame Control (MIT)", HERE.parent / "LICENSE")]
+    found += [(f"{p.parent.name}: {p.stem}", p) for p in sorted((KDECONNECT / "LICENSES").glob("*/*.txt"))]
+    notices = []
+    for title, path in found:
+        try:
+            notices.append({"title": title, "text": path.read_text(errors="replace")})
+        except OSError:
+            pass
+    return notices
+
+
+def remote_input(body):
+    """{"events": [...]} sends keyboard and pointer events; {} (or none yet) just starts the agent."""
+    events = body.get("events", [])
+    if not isinstance(events, list) or len(events) > INPUT_BATCH_LIMIT:
+        raise Failure(f"events must be a list of at most {INPUT_BATCH_LIMIT}", 400)
+    return _input.send([input_event(e) for e in events])
+
+
+# ---- touch: the headset's panels, through gamescope's own input (frame_touch.py) ----
+
+PANEL_WINDOW = re.compile(r"^\d{1,10}$")
+PANEL_DISPLAY = re.compile(r"^:\d{1,2}$")
+TOUCH_BUTTONS = ("left", "right", "middle")
+
+
+def panels():
+    """The headset's app panels (window, display, name, size) and which has focus."""
+    return json.loads(ssh("python3 - panels", stdin=(HERE / "frame_touch.py").read_text(), timeout=20))
+
+
+def panel_target(q):
+    window, display = (q.get("window") or [""])[0], (q.get("display") or [""])[0]
+    if not PANEL_WINDOW.match(window) or not PANEL_DISPLAY.match(display):
+        raise Failure("window must be a window id and display an X display such as :1", 400)
+    return window, display
+
+
+def panel_capture(query):
+    """One frame of a panel's own window, as PNG (its pixels, without the room around it)."""
+    window, display = panel_target(parse_qs(query))
+    return ssh(f"DISPLAY={display} timeout 10 ffmpeg -hide_banner -loglevel error -nostdin -f x11grab "
+               f"-window_id {window} -i {display} -frames:v 1 -f image2pipe -c:v png -", timeout=20, text=False)
+
+
+def touch_event(event):
+    """A frame_touch.py event with only the fields it knows, in range."""
+    if not isinstance(event, dict):
+        raise Failure("each touch event must be an object", 400)
+
+    def num(name, limit):
+        value = event.get(name)
+        if isinstance(value, bool) or not isinstance(value, (int, float)) or value != value:
+            raise Failure(f"{name} must be a number", 400)
+        return max(-limit, min(limit, round(float(value), 4)))
+    out = {}
+    if "fx" in event or "fy" in event:
+        if "window" not in event:
+            raise Failure("a position needs the panel's window and display", 400)
+        out.update(fx=num("fx", 1), fy=num("fy", 1))
+    # Any event can name the panel it's meant for; the Frame drops it if another has focus.
+    if "window" in event:
+        window, display = event.get("window"), event.get("display")
+        if isinstance(window, bool) or not isinstance(window, int) or window <= 0:
+            raise Failure("window must be the panel's window id", 400)
+        if not isinstance(display, str) or not PANEL_DISPLAY.match(display):
+            raise Failure("display must be an X display such as :1", 400)
+        out.update(window=window, display=display)
+    for name in ("dx", "dy"):
+        if name in event:
+            out[name] = num(name, INPUT_MOVE_LIMIT)
+    if "button" in event:
+        if event["button"] not in TOUCH_BUTTONS:
+            raise Failure(f"button must be one of {', '.join(TOUCH_BUTTONS)}", 400)
+        out["button"], out["down"] = event["button"], event.get("down") is not False
+    if "scroll" in event:
+        sc = event["scroll"]
+        if not isinstance(sc, list) or len(sc) != 2:
+            raise Failure("scroll must be [dx, dy]", 400)
+        out["scroll"] = [num_value(v, 5000) for v in sc]
+    if "key" in event:
+        key = event["key"]
+        if isinstance(key, bool) or not isinstance(key, int) or not 0 < key < 768:
+            raise Failure("key must be a Linux key code", 400)
+        out["key"], out["down"] = key, event.get("down") is not False
+    if "text" in event:
+        text = event["text"]
+        if not isinstance(text, str) or not 0 < len(text) <= INPUT_TEXT_LIMIT:
+            raise Failure(f"text must be 1 to {INPUT_TEXT_LIMIT} characters", 400)
+        out["text"] = text
+    if not set(out) - {"window", "display"}:
+        raise Failure("touch event has nothing to do", 400)
+    return out
+
+
+def num_value(value, limit):
+    if isinstance(value, bool) or not isinstance(value, (int, float)) or value != value:
+        raise Failure("scroll values must be numbers", 400)
+    return max(-limit, min(limit, round(float(value), 2)))
+
+
+class TouchAgent(InputAgent):
+    """frame_touch.py on the Frame, fed events over one long-lived ssh. Nothing to install:
+    it uses gamescope's own input socket and the libei that's on the image."""
+
+    def __init__(self):
+        super().__init__(source=HERE / "frame_touch.py", packages=[])
+
+    def deliver(self, report, force=False):
+        return ""
+
+    def command(self, folder=""):
+        code = base64.b64encode(self.source.read_bytes()).decode()
+        return "python3 -u -c " + shlex.quote(
+            f"import base64;exec(compile(base64.b64decode('{code}'),'frame_touch','exec'))")
+
+
+_touch = TouchAgent()
+
+
+def remote_touch(body):
+    """{"events": [...]} points, clicks, scrolls and types into the focused panel."""
+    events = body.get("events", [])
+    if not isinstance(events, list) or len(events) > INPUT_BATCH_LIMIT:
+        raise Failure(f"events must be a list of at most {INPUT_BATCH_LIMIT}", 400)
+    return _touch.send([touch_event(e) for e in events])
+
+
 def flatpak(body):
     app, action = str(body.get("id", "")), body.get("action")
     if not FLATPAK_ID.match(app):
@@ -1290,6 +1789,32 @@ def _sweep_one(prefix, d):
         pass
 
 
+# ---- Panel switcher (same helper on the companion and in the headset) ----
+
+def panels_action(body):
+    action = body.get("action", "list")
+    script = (HERE / "frame_panels.py").read_text()
+    if action == "open":
+        # Installed in the user account so the page can outlive this SSH call.
+        remote = ('umask 077; mkdir -p ~/.local/share/frame-control/panels && '
+                  'tmp=$(mktemp ~/.local/share/frame-control/panels/install.XXXXXX) && '
+                  'cat > "$tmp" && mv "$tmp" ~/.local/share/frame-control/panels/switcher.py && '
+                  'python3 ~/.local/share/frame-control/panels/switcher.py --open')
+    elif action == "list":
+        remote = "python3 -"
+    elif action == "focus":
+        key = body.get("key")
+        if not isinstance(key, str) or not frame_panels.KEY.fullmatch(key):
+            raise Failure("Choose an open panel.", 400)
+        remote = "python3 - --focus " + shlex.quote(key)
+    else:
+        raise Failure("Unknown panel action", 400)
+    result = json.loads(ssh(remote, stdin=script, timeout=45))
+    if "error" in result:
+        raise Failure(result["error"], 502)
+    return result
+
+
 # ---- Our Frame-side media player -----------------------------------------
 
 _MEDIA_LOCK = threading.Lock()
@@ -1425,13 +1950,14 @@ def agent_approval(body):
     return frame_agent.approvals.decide(body.get("confirmation"), body.get("accept"))
 
 
-POST = {"/api/media": media, "/api/agent/call": agent_call, "/api/agent/approval": agent_approval,
+POST = {"/api/vr": vr, "/api/comfort": comfort, "/api/media": media, "/api/agent/call": agent_call, "/api/agent/approval": agent_approval,
         "/api/assistant/chat": assistant_chat, "/api/android/display": android_display, "/api/android": android, "/api/titles": titles, "/api/launch": launch, "/api/steam": steam, "/api/volume": set_volume, "/api/clipboard": clipboard,
+        "/api/input": remote_input, "/api/touch": remote_touch,
         "/api/flatpak": flatpak, "/api/open": open_thing, "/api/shots/save": save_shots,
         "/api/webinstall/check": webinstall_check, "/api/webinstall/start": webinstall_start,
         "/api/webinstall/cancel": webinstall_cancel,
         "/api/telemetry": frame_telemetry.update_settings, "/api/telemetry/event": frame_telemetry.page_event,
-        "/api/report/preview": report_preview, "/api/report": report_send, "/api/macview": macview_action}
+        "/api/report/preview": report_preview, "/api/report": report_send, "/api/macview": macview_action, "/api/panels": panels_action}
 
 
 # ---- HTTP ------------------------------------------------------------------
@@ -1558,6 +2084,14 @@ class Handler(BaseHTTPRequestHandler):
                 self.send_json({"titles": frame_titles.list_titles()})
             elif path == "/api/titles/job":
                 self.send_json(title_job(url.query))
+            elif path == "/api/licenses":
+                self.send_json({"notices": licenses()})
+            elif path == "/api/panels":
+                self.send_json(panels())
+            elif path == "/api/touch":
+                self.send_json(_touch.send([]) if parse_qs(url.query).get("start") == ["1"] else dict(_touch.status))
+            elif path == "/api/input":
+                self.send_json(_input.send([]) if parse_qs(url.query).get("start") == ["1"] else dict(_input.status))
             elif path == "/api/job":
                 self.send_json(job_status(url.query))
             elif path == "/api/android/displays":
@@ -1567,6 +2101,8 @@ class Handler(BaseHTTPRequestHandler):
                                 "shared": frame_catalog.compat_db.shared()})
             elif path == "/api/android/catalog":
                 self.send_json({"apps": frame_catalog.catalog()})
+            elif path == "/api/vr/utilities":
+                self.send_json(frame_utilities.catalogue(steam_frame("utilities")["utilities"], frame_compat_db.load()))
             elif path == "/api/macview":
                 self.send_json(macview_state(parse_qs(url.query)))
             elif path == "/api/telemetry":
@@ -1587,6 +2123,8 @@ class Handler(BaseHTTPRequestHandler):
                 self.send_bytes(*shot_image(url.query))
             elif path == "/api/stream":
                 self.stream_video(url.query)
+            elif path == "/api/screenshot" and parse_qs(url.query).get("view") == ["panel"]:
+                self.send_bytes(panel_capture(url.query), "image/png", headers=[("X-Capture-Source", "panel")])
             elif path == "/api/screenshot" and parse_qs(url.query).get("view") == ["headset"]:
                 self.send_bytes(headset_view(), "image/png", headers=[("X-Capture-Source", "steamvr")])
             elif path == "/api/screenshot":
@@ -1663,7 +2201,7 @@ class Handler(BaseHTTPRequestHandler):
                 proc.wait()
                 errors.seek(0)
                 err = strip_ansi(errors.read().decode(errors="replace")).strip()
-                raise Failure(err or "The headset view sent no video for 20 s")
+                raise Failure(err or "The Frame sent no video for 20 s")
             chunk = first
             try:
                 self.send_response(200)