Release 0.4.1

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

.claude/skills/steam-frame/SKILL.md

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+---
+name: steam-frame
+description: Operate the user's Valve Steam Frame headset from the Mac through this repo's helpers and field notes. Use for Steam Frame SSH, screen streaming, clipboard, file push, APK or Flatpak installs, launching apps on the headset, arranging floating windows or panels in VR space, or debugging SteamOS/gamescope/SteamVR on the Frame.
+---
+
+# Steam Frame
+
+SSH works through the `frame` alias
+(user `steamos`). The headset has to be awake for anything that touches its
+desktop or panels.
+
+## Start here
+
+1. Read `docs/how-the-frame-works.md`. It's the map: the layer cake (SteamVR →
+   gamescope → nested Plasma), the verified facts, and debug recipes.
+2. Open the topic doc for the task:
+
+| Task | Doc | Script |
+|---|---|---|
+| Floating windows in the room, one panel per app | `docs/panels.md` | `scripts/panel-on-frame.sh` |
+| First-time access, SSH keys | `docs/ssh.md` | `scripts/connect.sh` |
+| See the Frame from the Mac, or the Mac inside the Frame | `docs/streaming.md` | `scripts/run-on-frame.sh mac-screen` |
+| Files and clipboard | `docs/file-transfer.md` | `scripts/push.sh`, `scripts/paste-to-frame.sh` |
+| Android apps (Lepton) | `docs/apks.md` | `scripts/install-apk.sh` |
+| Reach the Frame off the home LAN (Tailscale) | `docs/tailscale.md` | `scripts/tailscale-on-frame.sh` |
+| Install or buy Steam games, Frame ratings | `docs/steam-games.md` | `ui/frame_steam.py` |
+| Flatpaks | `docs/streaming.md` | `scripts/install-apps.sh` |
+| Launch an app inside the desktop panel | the script's header comment | `scripts/run-on-frame.sh` |
+| Mac GUI over all of this | `README.md` → Frame Control | `scripts/frame-ui.sh` |
+| iPhone/iPad app (server runs on the Frame, `FRAME_LOCAL=1`) | `docs/iphone.md` | `ios/`, `ui/local-bin/ssh` |
+| Recovery images, factory reset, boot loops | `docs/recovery-and-images.md`, `docs/how-the-frame-works.md` | `~/Downloads/steam-frame-recovery/` |
+| Test without the headset (the Frame OS image's own sshd) | `tests/frame-container/README.md` | `tests/frame-container/frame-image.sh` |
+| What's still unverified | `docs/open-questions.md` | — |
+
+Each script's usage is in its header comment. Read the header rather than
+running `--help`: `paste-to-frame.sh`, `serve-bootstrap.sh` and
+`bootstrap-on-frame.sh` act on any argument.
+
+## Ground rules
+
+- Label every claim **verified** (seen on the device, with the date and
+  SteamOS build) or **inferred**. The docs use this convention. Keep it, and
+  move items out of `docs/open-questions.md` once they're checked.
+- When you learn something new about the Frame, record it in
+  `docs/how-the-frame-works.md` (or the topic doc) in the same change.
+- The Frame's rootfs is read-only and SteamOS updates replace it. Put changes in
+  `~` (`--user` Flatpaks, `~/.config`) rather than `steamos-readonly disable`.
+- `sudo` on the Frame asks for the user's Developer Mode password. Hand those
+  steps to the user (open Terminal) and keep automation to non-sudo commands.
+- The Mac uses BSD userland and zsh (no `timeout`, use `head -n`).
+- **First-party first.** For any new capability, investigate the first-party
+  way before anything else: Valve (SteamOS, Steam, Steam Link), Apple (the Mac
+  and iPhone), and KDE (the Frame's desktop is Plasma). It's usually the best
+  answer. If it isn't, write down why not. If it is, find what Frame Control
+  can do to make it easier to set up (install over SSH, pre-seed settings,
+  pair automatically, tell the user the one setting to turn on).

.gitattributes

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+# Scripts run on the Frame (Linux) and on macOS/Linux: keep LF even in Windows checkouts.
+*.sh text eol=lf
+*.py text eol=lf
+*.js text eol=lf
+*.html text eol=lf
+*.json text eol=lf
+*.md text eol=lf
+*.bat text eol=crlf
+# Test fixtures are byte-exact (hashes, signatures): never convert line endings.
+tests/fixtures/** -text
+*.apk binary
+*.jar binary
+*.obb binary

.github/APPROVED_CONTRIBUTORS

@@ -0,0 +1,9 @@
+# GitHub handles approved to bypass contribution auto-close
+# Format: <username> <capability>
+# capability:
+#   issue  future issues stay open
+#   pr     future issues and PRs stay open
+# Maintainers add people by replying `lgtmi` or `lgtm` on an issue
+# (.github/workflows/approve-contributor.yml); editing this file by hand works too.
+
+fbl100 pr

.github/FUNDING.yml

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+ko_fi: alexsouthwell

.github/ISSUE_TEMPLATE/bug.yml

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+name: Bug report
+description: Report something that's broken
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        **Before you start:** read [CONTRIBUTING.md](https://github.com/saphid/frame-control/blob/main/CONTRIBUTING.md).
+
+        Issues from new contributors are auto-closed by default. A maintainer reviews them and reopens worthwhile ones. The [website feedback form](https://frame-control.pages.dev/feedback/) skips that queue.
+
+        Keep this short. If it doesn't fit on one screen, it's too long. Write in your own voice.
+
+  - type: textarea
+    id: description
+    attributes:
+      label: What happened?
+      description: Be specific. Include error messages and the last lines of the server log (Frame → Show Server Log).
+    validations:
+      required: true
+
+  - type: textarea
+    id: repro
+    attributes:
+      label: Steps to reproduce
+      description: Minimal steps to trigger the bug.
+    validations:
+      required: false
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+    validations:
+      required: false
+
+  - type: input
+    id: version
+    attributes:
+      label: Frame Control version
+      description: e.g. v0.3.1
+    validations:
+      required: false
+
+  - type: input
+    id: os
+    attributes:
+      label: Computer and SteamOS build
+      description: e.g. Windows 11, SteamOS 20260922.6101926 (Steam Settings → System)
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: Feedback form (no GitHub account needed, skips the queue)
+    url: https://frame-control.pages.dev/feedback/
+    about: Bugs, ideas and questions from the website become issues here without being auto-closed.

.github/ISSUE_TEMPLATE/idea.yml

@@ -0,0 +1,36 @@
+name: Idea or contribution proposal
+description: Propose a change or feature (required for new contributors before opening a PR)
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        **Before you start:** read [CONTRIBUTING.md](https://github.com/saphid/frame-control/blob/main/CONTRIBUTING.md).
+
+        Issues from new contributors are auto-closed by default. A maintainer reviews them and reopens worthwhile ones.
+
+        Keep this short. If it doesn't fit on one screen, it's too long. Write in your own voice.
+
+  - type: textarea
+    id: what
+    attributes:
+      label: What do you want to change?
+      description: Be specific and concise.
+    validations:
+      required: true
+
+  - type: textarea
+    id: why
+    attributes:
+      label: Why?
+      description: What problem does this solve?
+    validations:
+      required: true
+
+  - type: textarea
+    id: how
+    attributes:
+      label: How? (optional)
+      description: Brief technical approach, and whether you'd like to implement it yourself.
+    validations:
+      required: false

.github/workflows/approve-contributor.yml

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+# Contributor gate adapted from badlogic/pi-mono (MIT) at 6f7551516b84.
+# See CONTRIBUTING.md for how it works.
+
+name: Approve Contributor
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  approve:
+    # Only maintainers' comments that might approve someone join the queue, and
+    # they run one at a time so two lgtm replies can't race on APPROVED_CONTRIBUTORS.
+    # (The script below still checks for write access.)
+    if: >-
+      contains(github.event.comment.body, 'lgtm') &&
+      contains(fromJSON('["OWNER", "MEMBER", "COLLABORATOR"]'), github.event.comment.author_association)
+    concurrency:
+      group: approve-contributor
+      cancel-in-progress: false
+      queue: max
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ github.event.repository.default_branch }}
+
+      - name: Update contributor approval
+        id: update
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          script: |
+            const fs = require('fs');
+
+            const APPROVED_FILE = '.github/APPROVED_CONTRIBUTORS';
+            const VALID_CAPABILITIES = new Set(['issue', 'pr']);
+            const issueAuthor = context.payload.issue.user.login;
+            const commenter = context.payload.comment.user.login;
+            const commentBody = (context.payload.comment.body || '').trim();
+
+            const approvalAtStartPattern = /^[\s.]*(?:@[A-Za-z0-9](?:[A-Za-z0-9-]{0,37}[A-Za-z0-9])?(?:\s*,\s*|[.:]\s*|\s+))*(lgtmi|lgtm)(?=$|[\s]|[^\p{L}\p{N}_\s])/iu;
+            const approvalAtEndPattern = /(?:^|[\s.])(lgtmi|lgtm)\s*(?:[^\p{L}\p{N}_\s])?\s*$/iu;
+            const approvalMatch = commentBody.match(approvalAtStartPattern) ?? commentBody.match(approvalAtEndPattern);
+
+            if (!approvalMatch) {
+              console.log('Comment does not start or end with lgtm or lgtmi');
+              core.setOutput('status', 'skipped');
+              return;
+            }
+
+            const targetCapability = approvalMatch[1].toLowerCase() === 'lgtmi' ? 'issue' : 'pr';
+
+            try {
+              const { data: permissionLevel } = await github.rest.repos.getCollaboratorPermissionLevel({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                username: commenter,
+              });
+
+              if (!['admin', 'maintain', 'write'].includes(permissionLevel.permission)) {
+                console.log(`${commenter} does not have write access`);
+                core.setOutput('status', 'skipped');
+                return;
+              }
+            } catch {
+              console.log(`${commenter} does not have collaborator access`);
+              core.setOutput('status', 'skipped');
+              return;
+            }
+
+            function parseMentionedUsers(body) {
+              const users = [];
+              const seenUsers = new Set();
+              const mentionPattern = /(^|[^A-Za-z0-9_])@([A-Za-z0-9](?:[A-Za-z0-9-]{0,37}[A-Za-z0-9])?)(?![A-Za-z0-9-]|\/)/g;
+
+              for (const match of body.matchAll(mentionPattern)) {
+                const username = match[2];
+                const normalizedUser = username.toLowerCase();
+                if (seenUsers.has(normalizedUser)) {
+                  continue;
+                }
+                seenUsers.add(normalizedUser);
+                users.push(username);
+              }
+
+              return users;
+            }
+
+            function parseApprovedUsers(content) {
+              const lines = content.split('\n');
+              const entries = [];
+              const users = new Map();
+
+              for (const line of lines) {
+                const trimmed = line.trim();
+                if (!trimmed || trimmed.startsWith('#')) {
+                  entries.push({ type: 'other', line });
+                  continue;
+                }
+
+                const parts = trimmed.split(/\s+/);
+                if (parts.length !== 2) {
+                  console.log(`Skipping malformed line: ${line}`);
+                  entries.push({ type: 'other', line });
+                  continue;
+                }
+
+                const [username, capability] = parts;
+                const normalizedCapability = capability.toLowerCase();
+                if (!VALID_CAPABILITIES.has(normalizedCapability)) {
+                  console.log(`Skipping line with invalid capability: ${line}`);
+                  entries.push({ type: 'other', line });
+                  continue;
+                }
+
+                const normalizedUser = username.toLowerCase();
+                const entry = { type: 'user', username, normalizedUser, capability: normalizedCapability };
+                entries.push(entry);
+                users.set(normalizedUser, entry);
+              }
+
+              return { entries, users };
+            }
+
+            function stringifyApprovedUsers(entries) {
+              const normalizedEntries = [...entries];
+
+              while (normalizedEntries.length > 0) {
+                const lastEntry = normalizedEntries[normalizedEntries.length - 1];
+                if (lastEntry.type !== 'other' || lastEntry.line.trim() !== '') {
+                  break;
+                }
+                normalizedEntries.pop();
+              }
+
+              return `${normalizedEntries
+                .map((entry) => (entry.type === 'user' ? `${entry.username} ${entry.capability}` : entry.line))
+                .join('\n')}\n`;
+            }
+
+            const content = fs.readFileSync(APPROVED_FILE, 'utf8');
+            const { entries, users } = parseApprovedUsers(content);
+            const mentionedUsers = parseMentionedUsers(commentBody);
+            const approvalTargets = mentionedUsers.length > 0 ? mentionedUsers : [issueAuthor];
+            const changedTargets = [];
+            const alreadyTargets = [];
+
+            for (const username of approvalTargets) {
+              const normalizedUser = username.toLowerCase();
+              const existingEntry = users.get(normalizedUser);
+              const existingCapability = existingEntry?.capability ?? null;
+
+              if (existingCapability === 'pr' || existingCapability === targetCapability) {
+                alreadyTargets.push(existingEntry?.username ?? username);
+                console.log(`${username} is already approved for ${existingCapability}`);
+                continue;
+              }
+
+              if (existingEntry) {
+                existingEntry.capability = targetCapability;
+                changedTargets.push(existingEntry.username);
+              } else {
+                const entry = { type: 'user', username, normalizedUser, capability: targetCapability };
+                entries.push(entry);
+                users.set(normalizedUser, entry);
+                changedTargets.push(username);
+              }
+
+              console.log(`Set ${username} capability to ${targetCapability}`);
+            }
+
+            core.setOutput('capability', targetCapability);
+            core.setOutput('changed_targets', JSON.stringify(changedTargets));
+            core.setOutput('already_targets', JSON.stringify(alreadyTargets));
+
+            if (changedTargets.length === 0) {
+              core.setOutput('status', 'already');
+              return;
+            }
+
+            fs.writeFileSync(APPROVED_FILE, stringifyApprovedUsers(entries));
+            core.setOutput('status', 'changed');
+
+      - name: Commit and push
+        if: steps.update.outputs.status == 'changed'
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add .github/APPROVED_CONTRIBUTORS
+          git diff --staged --quiet || git commit -m "chore: approve contributors from issue #${{ github.event.issue.number }}"
+          # main may have moved since checkout; replay the approval on top of it.
+          git pull --rebase origin "${{ github.event.repository.default_branch }}"
+          git push
+
+      - name: Comment on issue
+        if: steps.update.outputs.status == 'changed' || steps.update.outputs.status == 'already'
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        env:
+          CAPABILITY: ${{ steps.update.outputs.capability }}
+          CHANGED_TARGETS: ${{ steps.update.outputs.changed_targets }}
+          ALREADY_TARGETS: ${{ steps.update.outputs.already_targets }}
+        with:
+          script: |
+            const capability = process.env.CAPABILITY;
+            const changedTargets = JSON.parse(process.env.CHANGED_TARGETS || '[]');
+            const alreadyTargets = JSON.parse(process.env.ALREADY_TARGETS || '[]');
+            const defaultBranch = context.payload.repository.default_branch;
+            const formatTargets = (targets) => targets.map((target) => `@${target}`).join(', ');
+            const bodyLines = [];
+
+            if (changedTargets.length > 0) {
+              if (capability === 'issue') {
+                bodyLines.push(`${formatTargets(changedTargets)} approved for issues. Future issues will not be auto-closed. PRs still require \`lgtm\` at the start of a maintainer reply (optionally after one or more \`@username\` mentions) or at the end.`);
+              } else {
+                bodyLines.push(`${formatTargets(changedTargets)} approved for issues and PRs. Future issues and PRs will not be auto-closed.`);
+              }
+            }
+
+            if (alreadyTargets.length > 0) {
+              const verb = alreadyTargets.length === 1 ? 'is' : 'are';
+              bodyLines.push(`${formatTargets(alreadyTargets)} ${verb} already approved.`);
+            }
+
+            bodyLines.push('', `See [CONTRIBUTING.md](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/${defaultBranch}/CONTRIBUTING.md).`);
+            const body = bodyLines.join('\n');
+
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body,
+            });
+

.github/workflows/checks.yml

@@ -0,0 +1,89 @@
+name: checks
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.9"   # the oldest python3 the Mac app may pick up (Xcode CLT)
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "24"
+      - name: Install zsh
+        run: sudo apt-get update -qq && sudo apt-get install -y -qq zsh
+      - name: Script syntax
+        run: |
+          sh -n ui/local-bin/ssh
+          for f in scripts/*.sh frame/*/*.sh; do
+            case "$(head -n 1 "$f")" in
+              *zsh*) zsh -n "$f" ;;
+              *) bash -n "$f" ;;
+            esac
+          done
+      - name: Python compiles
+        run: |
+          python -m py_compile ui/*.py apk-catalog/*.py frame/android/*.py ios/scripts/*.py
+          # Valve's devkit-utils (vendored; run by the Frame's python3). Most have no .py suffix.
+          python -m py_compile $(find frame/devkit-utils -type f ! -name '*.*' ! -name LICENSE) frame/devkit-utils/devkit_utils/*.py
+      - name: Server tests
+        run: python -m unittest discover -s tests -v
+      - name: App syntax
+        run: node --check app/main.js && node --check app/build/make-icon.js && node --check app/build/fetch-deps.js && node --check app/preload.js && node --check app/install-link.js && node --check app/updater.js
+      - name: Updater tests
+        run: node --test app/test/updater.test.js
+      - name: Website
+        run: node --test site/test/*.test.mjs && node --check site/public/js/site.js && node --check site/public/js/feedback.js
+
+  # The server runs on each desktop OS the app ships for, on the Python version
+  # the app bundles (app/build/fetch-deps.js) and, on Ubuntu, a newer one.
+  server-tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: windows-latest
+            python: "3.12"
+          - os: macos-latest
+            python: "3.12"
+          - os: ubuntu-latest
+            python: "3.13"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Server tests
+        run: python -m unittest discover -s tests -v
+
+  # The iPhone app: builds for the Simulator and runs its unit tests.
+  ios:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Generate the project
+        run: brew install xcodegen && cd ios && xcodegen generate
+      - name: Build and test
+        run: |
+          cd ios
+          udid=$(xcrun simctl list devices available -j | python3 -c 'import json,sys; d=json.load(sys.stdin)["devices"]; print(next(x["udid"] for r in d for x in d[r] if x["name"].startswith("iPhone")))')
+          xcodebuild -project FrameControl.xcodeproj -scheme FrameControl -destination "platform=iOS Simulator,id=$udid" CODE_SIGNING_ALLOWED=NO test
+
+  # End-to-end tests against the fake Frame (tests/fakeframe): Arch Linux ARM
+  # in Docker, on a native arm64 runner like the headset. See docs/testing.md.
+  e2e:
+    runs-on: ubuntu-24.04-arm
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install zsh
+        run: sudo apt-get update -qq && sudo apt-get install -y -qq zsh
+      - name: End-to-end tests
+        run: scripts/e2e.sh

.github/workflows/issue-gate.yml

@@ -0,0 +1,134 @@
+# Contributor gate adapted from badlogic/pi-mono (MIT) at 6f7551516b84.
+# See CONTRIBUTING.md for how it works.
+
+name: Issue Gate
+
+on:
+  issues:
+    types: [opened]
+
+jobs:
+  check-contributor:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      issues: write
+    steps:
+      - name: Check issue author
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          script: |
+            const APPROVED_FILE = '.github/APPROVED_CONTRIBUTORS';
+            const VALID_CAPABILITIES = new Set(['issue', 'pr']);
+            const TRUSTED_BOT_AUTHORS = new Set(['dependabot[bot]', 'sentry[bot]', 'claude[bot]']);
+            const issueAuthor = context.payload.issue.user.login;
+            const defaultBranch = context.payload.repository.default_branch;
+            const isBotAuthor = issueAuthor.endsWith('[bot]');
+
+            if (TRUSTED_BOT_AUTHORS.has(issueAuthor)) {
+              console.log(`Skipping trusted bot: ${issueAuthor}`);
+              return;
+            }
+
+            async function getPermission(username) {
+              try {
+                const { data: permissionLevel } = await github.rest.repos.getCollaboratorPermissionLevel({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  username,
+                });
+                return permissionLevel.permission;
+              } catch {
+                return null;
+              }
+            }
+
+            async function getTextFile(path) {
+              const { data: fileContent } = await github.rest.repos.getContent({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                path,
+                ref: defaultBranch,
+              });
+
+              if (!('content' in fileContent) || typeof fileContent.content !== 'string') {
+                throw new Error(`Expected file content for ${path}`);
+              }
+
+              return Buffer.from(fileContent.content, 'base64').toString('utf8');
+            }
+
+            function parseApprovedUsers(content) {
+              const users = new Map();
+
+              for (const rawLine of content.split('\n')) {
+                const line = rawLine.trim();
+                if (!line || line.startsWith('#')) continue;
+
+                const parts = line.split(/\s+/);
+                if (parts.length !== 2) {
+                  console.log(`Skipping malformed line: ${rawLine}`);
+                  continue;
+                }
+
+                const [username, capability] = parts;
+                const normalizedCapability = capability.toLowerCase();
+                if (!VALID_CAPABILITIES.has(normalizedCapability)) {
+                  console.log(`Skipping line with invalid capability: ${rawLine}`);
+                  continue;
+                }
+
+                users.set(username.toLowerCase(), normalizedCapability);
+              }
+
+              return users;
+            }
+
+            const permission = await getPermission(issueAuthor);
+            if (!isBotAuthor && ['admin', 'maintain', 'write'].includes(permission)) {
+              console.log(`${issueAuthor} is a collaborator with ${permission} access`);
+              return;
+            }
+
+            const approvedContent = await getTextFile(APPROVED_FILE);
+            const approvedUsers = parseApprovedUsers(approvedContent);
+            const capability = approvedUsers.get(issueAuthor.toLowerCase());
+
+            if (!isBotAuthor && (capability === 'issue' || capability === 'pr')) {
+              console.log(`${issueAuthor} is approved for ${capability}`);
+              return;
+            }
+
+            const message = [
+              'This issue was auto-closed. All issues from new contributors are auto-closed by default.',
+              '',
+              `Maintainers review auto-closed issues regularly and reopen worthwhile ones. Issues that do not meet the quality bar in [CONTRIBUTING.md](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/${defaultBranch}/CONTRIBUTING.md) will not be reopened or receive a reply.`,
+              '',
+              'Just want to report a bug or share an idea? The [website feedback form](https://frame-control.pages.dev/feedback/) skips this queue.',
+              '',
+              'If a maintainer replies `lgtmi` on one of your issues, your future issues will stay open. If a maintainer replies `lgtm`, your future issues and PRs will stay open. The command must be at the start of the reply (optionally after one or more `@username` mentions) or at the end.',
+              '',
+              `See [CONTRIBUTING.md](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/${defaultBranch}/CONTRIBUTING.md).`,
+            ].join('\n');
+
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body: message,
+            });
+
+            await github.rest.issues.addLabels({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              labels: ['untriaged'],
+            });
+
+            await github.rest.issues.update({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              state: 'closed',
+              state_reason: 'not_planned',
+            });

.github/workflows/issue-triage-labels.yml

@@ -0,0 +1,145 @@
+# Contributor gate adapted from badlogic/pi-mono (MIT) at 6f7551516b84.
+# See CONTRIBUTING.md for how it works.
+
+name: Issue Triage Labels
+
+on:
+  issues:
+    types: [reopened, labeled]
+
+jobs:
+  update-labels:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - name: Update triage labels
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          script: |
+            const UNTRIAGED_LABEL = 'untriaged';
+            const NO_ACTION_LABEL = 'no-action';
+            const LAST_READ_LABEL = 'last-read';
+            const TO_DISCUSS_LABEL = 'to-discuss';
+            const INPROGRESS_LABEL = 'inprogress';
+
+            function issueHasLabel(issue, labelName) {
+              return (issue.labels ?? []).some((label) => label.name === labelName);
+            }
+
+            async function removeLabelIfPresent(issueNumber, issue, labelName) {
+              if (!issueHasLabel(issue, labelName)) {
+                console.log(`Issue #${issueNumber} does not have ${labelName}`);
+                return;
+              }
+
+              try {
+                await github.rest.issues.removeLabel({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: issueNumber,
+                  name: labelName,
+                });
+                console.log(`Removed ${labelName} from #${issueNumber}`);
+              } catch (error) {
+                if (error.status === 404) {
+                  console.log(`Label ${labelName} was already absent from #${issueNumber}`);
+                  return;
+                }
+                throw error;
+              }
+            }
+
+            if (context.payload.action === 'reopened') {
+              await removeLabelIfPresent(context.issue.number, context.payload.issue, UNTRIAGED_LABEL);
+              await removeLabelIfPresent(context.issue.number, context.payload.issue, NO_ACTION_LABEL);
+              return;
+            }
+
+            if (context.payload.action === 'labeled' && context.payload.label?.name === NO_ACTION_LABEL) {
+              await removeLabelIfPresent(context.issue.number, context.payload.issue, UNTRIAGED_LABEL);
+              return;
+            }
+
+            if (context.payload.action !== 'labeled' || context.payload.label?.name !== LAST_READ_LABEL) {
+              console.log('Not a last-read label event');
+              return;
+            }
+
+            const currentIssueNumber = context.issue.number;
+            const lastReadIssues = await github.paginate(github.rest.issues.listForRepo, {
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              state: 'all',
+              labels: LAST_READ_LABEL,
+              per_page: 100,
+            });
+
+            const previousIssueNumbers = lastReadIssues
+              .filter((issue) => !issue.pull_request)
+              .map((issue) => issue.number)
+              .filter((issueNumber) => issueNumber !== currentIssueNumber);
+
+            if (previousIssueNumbers.length === 0) {
+              console.log('No previous last-read issue found');
+              return;
+            }
+
+            const previousIssueNumber = Math.max(...previousIssueNumbers);
+            if (currentIssueNumber <= previousIssueNumber) {
+              console.log(
+                `Last-read was added to old issue #${currentIssueNumber}; latest last-read is #${previousIssueNumber}`,
+              );
+              return;
+            }
+
+            const untriagedIssues = await github.paginate(github.rest.issues.listForRepo, {
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              state: 'all',
+              labels: UNTRIAGED_LABEL,
+              per_page: 100,
+            });
+
+            const issuesToMark = untriagedIssues
+              .filter((issue) => !issue.pull_request)
+              .filter((issue) => issue.number >= previousIssueNumber && issue.number <= currentIssueNumber)
+              .sort((a, b) => a.number - b.number);
+
+            if (issuesToMark.length === 0) {
+              console.log(`No untriaged issues found from #${previousIssueNumber} to #${currentIssueNumber}`);
+              return;
+            }
+
+            for (const issue of issuesToMark) {
+              if (issueHasLabel(issue, TO_DISCUSS_LABEL)) {
+                console.log(`Skipped ${NO_ACTION_LABEL} for #${issue.number} because it has ${TO_DISCUSS_LABEL}`);
+              } else {
+                await github.rest.issues.addLabels({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: issue.number,
+                  labels: [NO_ACTION_LABEL],
+                });
+                console.log(`Added ${NO_ACTION_LABEL} to #${issue.number}`);
+              }
+
+              await github.rest.issues.update({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issue.number,
+                state: 'closed',
+                state_reason: 'not_planned',
+              });
+              console.log(`Closed #${issue.number} as not planned`);
+
+              await removeLabelIfPresent(issue.number, issue, INPROGRESS_LABEL);
+
+              await github.rest.issues.removeLabel({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issue.number,
+                name: UNTRIAGED_LABEL,
+              });
+              console.log(`Removed ${UNTRIAGED_LABEL} from #${issue.number}`);
+            }

.github/workflows/pr-gate.yml

@@ -0,0 +1,131 @@
+# Contributor gate adapted from badlogic/pi-mono (MIT) at 6f7551516b84.
+# See CONTRIBUTING.md for how it works.
+
+name: PR Gate
+
+on:
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  check-contributor:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Check if contributor is approved
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          script: |
+            const APPROVED_FILE = '.github/APPROVED_CONTRIBUTORS';
+            const VALID_CAPABILITIES = new Set(['issue', 'pr']);
+            const TRUSTED_BOT_AUTHORS = new Set(['dependabot[bot]', 'sentry[bot]', 'claude[bot]']);
+            const prAuthor = context.payload.pull_request.user.login;
+            const defaultBranch = context.payload.repository.default_branch;
+            const isBotAuthor = prAuthor.endsWith('[bot]');
+
+            if (TRUSTED_BOT_AUTHORS.has(prAuthor)) {
+              console.log(`Skipping trusted bot: ${prAuthor}`);
+              return;
+            }
+
+            async function getPermission(username) {
+              try {
+                const { data: permissionLevel } = await github.rest.repos.getCollaboratorPermissionLevel({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  username,
+                });
+                return permissionLevel.permission;
+              } catch {
+                return null;
+              }
+            }
+
+            async function getTextFile(path) {
+              const { data: fileContent } = await github.rest.repos.getContent({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                path,
+                ref: defaultBranch,
+              });
+
+              if (!('content' in fileContent) || typeof fileContent.content !== 'string') {
+                throw new Error(`Expected file content for ${path}`);
+              }
+
+              return Buffer.from(fileContent.content, 'base64').toString('utf8');
+            }
+
+            function parseApprovedUsers(content) {
+              const users = new Map();
+
+              for (const rawLine of content.split('\n')) {
+                const line = rawLine.trim();
+                if (!line || line.startsWith('#')) continue;
+
+                const parts = line.split(/\s+/);
+                if (parts.length !== 2) {
+                  console.log(`Skipping malformed line: ${rawLine}`);
+                  continue;
+                }
+
+                const [username, capability] = parts;
+                const normalizedCapability = capability.toLowerCase();
+                if (!VALID_CAPABILITIES.has(normalizedCapability)) {
+                  console.log(`Skipping line with invalid capability: ${rawLine}`);
+                  continue;
+                }
+
+                users.set(username.toLowerCase(), normalizedCapability);
+              }
+
+              return users;
+            }
+
+            async function closePullRequest(message) {
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.payload.pull_request.number,
+                body: message,
+              });
+
+              await github.rest.pulls.update({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                pull_number: context.payload.pull_request.number,
+                state: 'closed',
+              });
+            }
+
+            const permission = await getPermission(prAuthor);
+            if (!isBotAuthor && ['admin', 'maintain', 'write'].includes(permission)) {
+              console.log(`${prAuthor} is a collaborator with ${permission} access`);
+              return;
+            }
+
+            const approvedContent = await getTextFile(APPROVED_FILE);
+            const approvedUsers = parseApprovedUsers(approvedContent);
+            const capability = approvedUsers.get(prAuthor.toLowerCase());
+
+            if (!isBotAuthor && capability === 'pr') {
+              console.log(`${prAuthor} is approved for PRs`);
+              return;
+            }
+
+            console.log(`${prAuthor} is not approved, closing PR`);
+
+            const message = [
+              'This PR was auto-closed. Only contributors approved with `lgtm` can open PRs. Open an issue first and ask a maintainer for approval.',
+              '',
+              `Maintainers review auto-closed issues regularly. Issues that do not meet the quality bar in [CONTRIBUTING.md](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/${defaultBranch}/CONTRIBUTING.md) will not be reopened or receive a reply.`,
+              '',
+              'If a maintainer replies `lgtmi`, your future issues will stay open. If a maintainer replies `lgtm`, your future issues and PRs will stay open. The command must be at the start of the reply (optionally after one or more `@username` mentions) or at the end.',
+              '',
+              `See [CONTRIBUTING.md](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/${defaultBranch}/CONTRIBUTING.md).`,
+            ].join('\n');
+
+            await closePullRequest(message);

.github/workflows/release.yml

@@ -0,0 +1,61 @@
+name: release
+
+# Pushing a v* tag builds Frame Control for macOS, Windows and Linux and attaches
+# the installers to that tag's GitHub release (created as a draft if missing).
+# Pull requests that touch the app build the same installers as artifacts.
+on:
+  push:
+    tags: ["v*"]
+  pull_request:
+    paths: ["app/**", "ui/**", "scripts/**", "frame/**", "apk-catalog/**", ".github/workflows/release.yml"]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: macos-latest
+            script: dist
+            files: app/dist/*.dmg app/dist/*.zip
+          - os: windows-latest
+            script: dist:win
+            files: app/dist/*.exe app/dist/*.zip
+          - os: ubuntu-latest
+            script: dist:linux
+            files: app/dist/*.AppImage app/dist/*.deb
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "24"
+      - name: Build
+        working-directory: app
+        shell: bash
+        run: npm ci && npm run ${{ matrix.script }}
+        env:
+          CSC_IDENTITY_AUTO_DISCOVERY: "false"
+      - name: Upload to the release
+        if: startsWith(github.ref, 'refs/tags/')
+        shell: bash
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          tag="${GITHUB_REF_NAME}"
+          gh release view "$tag" >/dev/null 2>&1 || gh release create "$tag" --draft --title "Frame Control ${tag#v}" --notes ""
+          gh release upload "$tag" ${{ matrix.files }} --clobber
+      - uses: actions/upload-artifact@v4
+        with:
+          name: frame-control-${{ matrix.os }}
+          path: |
+            app/dist/*.dmg
+            app/dist/*.exe
+            app/dist/*.zip
+            app/dist/*.AppImage
+            app/dist/*.deb
+          if-no-files-found: ignore

.github/workflows/remove-inprogress-on-close.yml

@@ -0,0 +1,34 @@
+# Contributor gate adapted from badlogic/pi-mono (MIT) at 6f7551516b84.
+# See CONTRIBUTING.md for how it works.
+
+name: Remove In Progress Label On Close
+
+on:
+  issues:
+    types: [closed]
+
+jobs:
+  remove-label:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - name: Remove inprogress label
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          script: |
+            const labelName = 'inprogress';
+            const labels = context.payload.issue.labels ?? [];
+            const hasLabel = labels.some((label) => label.name === labelName);
+
+            if (!hasLabel) {
+              console.log(`Issue does not have ${labelName} label`);
+              return;
+            }
+
+            await github.rest.issues.removeLabel({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              name: labelName,
+            });

.gitignore

@@ -0,0 +1,11 @@
+.DS_Store
+__pycache__/
+apk-catalog/data/cache/
+apk-catalog/data/index-v2*.json*
+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/

CONTRIBUTING.md

@@ -0,0 +1,71 @@
+# Contributing to Frame Control
+
+This guide exists to save both sides time. The process is borrowed from
+[pi](https://github.com/badlogic/pi-mono/blob/main/CONTRIBUTING.md).
+
+## Just want to report something?
+
+Use the [feedback form](https://frame-control.pages.dev/feedback/). It needs no
+GitHub account, and what you send becomes an issue here that stays open.
+
+## The One Rule
+
+**You must understand your code.** If you can't explain what your change does
+and how it interacts with the rest of the app, your PR will be closed.
+
+Using AI to write code is fine. Submitting AI-generated slop you don't
+understand is not.
+
+## Contribution gate
+
+Issues and PRs opened on GitHub by new contributors are auto-closed by default.
+A maintainer reviews auto-closed issues regularly and reopens worthwhile ones.
+Issues that don't meet the quality bar below won't be reopened or get a reply.
+
+Approval happens through maintainer replies on issues:
+
+- `lgtmi`: your future issues won't be auto-closed
+- `lgtm`: your future issues and PRs won't be auto-closed
+
+The word must be at the start of the reply (optionally after one or more
+`@username` mentions) or at the end. Only `lgtm` lets you open PRs. Approved
+people are listed in [`.github/APPROVED_CONTRIBUTORS`](.github/APPROVED_CONTRIBUTORS).
+
+## Quality bar for issues
+
+Use one of the issue templates, and keep it short, concrete and worth reading.
+
+- If it doesn't fit on one screen, it's too long.
+- Write in your own voice. If you must use an LLM, say so in a clearly labelled
+  follow-up comment.
+- State the bug or request clearly, and why it matters.
+- For bugs, include your OS, your SteamOS build (Steam Settings → System), and
+  the server log (**Frame → Show Server Log** in the app).
+- If you want to implement the change yourself, say so.
+
+## Before opening a PR
+
+Don't open a PR until a maintainer has approved you with `lgtm`. Open an
+[idea or contribution proposal](https://github.com/saphid/frame-control/issues/new?template=idea.yml)
+first.
+
+Then check your change:
+
+```sh
+python3 -m unittest discover -s tests   # server tests; no headset needed
+node --test site/test/*.test.mjs        # website feedback function
+```
+
+Say what you tested, and whether you tried it on a real Steam Frame.
+
+## Blocking
+
+If you ignore this document twice, or spam the tracker with agent-generated
+issues, your GitHub account will be blocked from the repo.
+
+## Why auto-close?
+
+This is a hobby project with one maintainer. Auto-closing is a buffer against
+burnout and tracker spam: issues get reviewed on the maintainer's schedule, and
+the good ones are reopened. Short, concrete, reproducible reports and thoughtful
+contributions are welcome.

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 saphid
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,266 @@
+<div align="center">
+
+<img src="docs/img/icon.png" width="112" alt="Frame Control icon">
+
+# Frame Control
+
+**Manage your Valve Steam Frame from your computer.**<br>
+See what the headset sees, install games and Android apps, move files and text across, and check battery and status, all over SSH.
+
+[![Latest release](https://img.shields.io/github/v/release/saphid/steam-frame?label=release&color=1a9fff)](https://github.com/saphid/steam-frame/releases/latest)
+[![Platforms](https://img.shields.io/badge/macOS%20%7C%20Windows%20%7C%20Linux-2a475e?label=runs%20on)](#install)
+[![Checks](https://img.shields.io/github/actions/workflow/status/saphid/steam-frame/checks.yml?branch=main&label=checks)](https://github.com/saphid/steam-frame/actions/workflows/checks.yml)
+[![License: MIT](https://img.shields.io/badge/license-MIT-66c0f4)](LICENSE)
+
+[**Website**](https://frame-control.pages.dev) · [**Download**](#install) · [Trailer](#trailer) · [Features](#features) · [Set up the headset](#set-up-the-headset) · [Feedback](#feedback) · [Docs](#going-further)
+
+<br>
+
+<img src="docs/img/frame-control.png" alt="Frame Control's Games tab: installed games, sideloaded titles, and your Steam library with Frame ratings" width="900">
+
+<a id="trailer"></a>
+<a href="https://github.com/saphid/steam-frame/releases/download/trailer/frame-control-trailer.mp4"><img src="docs/img/trailer.jpg" alt="Watch the Frame Control trailer" width="900"></a>
+
+<sub>The trailer: 66 seconds, with sound. Downloads the MP4 from the trailer release.</sub>
+
+<sub>Unofficial hobby project, not affiliated with Valve. Free and open source.</sub>
+
+</div>
+
+---
+
+## Features
+
+<table>
+<tr>
+<td width="50%" valign="top">
+
+**👓 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">
+
+**🔋 Battery and status**<br>
+Charge, charging watts and time left, storage, memory, temperature, Wi-Fi, and what's running.
+
+</td>
+</tr>
+<tr>
+<td valign="top">
+
+**🎮 Steam games**<br>
+Everything you own with its Steam Frame rating. Install onto the headset with live progress, and search the store.
+
+</td>
+<td valign="top">
+
+**🤖 Android apps**<br>
+About 4,500 F-Droid apps rated for the Frame. One click installs each as its own app in your Steam library.
+
+</td>
+</tr>
+<tr>
+<td valign="top">
+
+**📁 Files, games and clipboard**<br>
+Drag files onto the window to send them. Drop a game's .zip, folder or .exe to add it to the Steam library, with Proton or the Linux runtime picked for you. Send text or your clipboard straight to the headset's desktop.
+
+</td>
+<td valign="top">
+
+**📸 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>
+<td valign="top">
+
+**🧩 Flatpaks and display**<br>
+Install desktop apps like Moonlight or VLC, and set each Android app's resolution and text size.
+
+</td>
+<td valign="top">
+
+**⚡ One-click tools**<br>
+SSH, SFTP, Steam Link, remote desktop, volume, sleep, restart and shut down.
+
+</td>
+</tr>
+</table>
+
+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). 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
+
+| | Download | Needs |
+|---|---|---|
+| **macOS** (Apple Silicon) | [Frame-Control-mac-arm64.dmg](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-mac-arm64.dmg) | Nothing extra |
+| **Windows** 10 / 11 (x64) | [Frame-Control-Setup-x64.exe](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-Setup-x64.exe) · [portable .zip](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-win-x64.zip) | Nothing extra |
+| **Linux** (x64) | [AppImage](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-x86_64.AppImage) · [.deb](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-amd64.deb) | `ssh` (most desktops have it) |
+| **Linux** (arm64) | [AppImage](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-arm64.AppImage) · [.deb](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-arm64.deb) | `ssh`, and `adb` for Android apps (`sudo apt install adb`) |
+
+**iPhone and iPad:** the same features from your phone, with nothing to install on
+a computer. Build it from [`ios/`](ios) in Xcode; see [docs/iphone.md](docs/iphone.md).
+
+The app brings its own Python and `adb`; SSH is built into macOS and Windows.
+From 0.4 it updates itself: when a new version is published, a banner offers
+**Update and restart**. It sends anonymous usage statistics, which you can turn
+off. Sharing compatibility results and error details is opt-in. See
+[docs/privacy.md](docs/privacy.md).
+Google doesn't publish `adb` for arm64 Linux, so that build uses your
+distribution's. If you already have `adb`, the app uses yours.
+
+<details>
+<summary><b>macOS: the app isn't notarized</b></summary>
+
+There's no paid Apple developer account behind it, so macOS says the app is
+damaged or can't be checked. Drag it to Applications, then clear the download
+quarantine once:
+
+```sh
+xattr -dr com.apple.quarantine "/Applications/Frame Control.app"
+```
+
+The first time, macOS also asks to allow local network access (for SSH) and
+control of Terminal (for the password prompts).
+</details>
+
+<details>
+<summary><b>Windows: SmartScreen warning</b></summary>
+
+The installer isn't code-signed, so Windows SmartScreen may say it protected
+your PC. Choose **More info → Run anyway**. The portable `.zip` avoids the
+installer: unzip it anywhere and run `Frame Control.exe`.
+</details>
+
+<details>
+<summary><b>Linux: running the AppImage</b></summary>
+
+```sh
+chmod +x Frame-Control-linux-*.AppImage && ./Frame-Control-linux-*.AppImage
+```
+
+If it complains about FUSE, install `libfuse2` (Ubuntu 24.04+: `libfuse2t64`),
+or run it with `--appimage-extract-and-run`.
+</details>
+
+## Set up the headset
+
+You type one password on the headset, once. Everything else happens on your
+computer.
+
+1. **On the Frame:** Steam Settings → System → **Enable Developer Mode**, then
+   in the Developer section, **Set User Password**. Pick something short:
+   you'll type it once more on your computer and then never again.
+2. **On your computer:** open Frame Control. It offers to **Set Up
+   Connection**, which finds the headset, creates an SSH key, and asks for that
+   password once in a terminal window. If it can't find the Frame, type the
+   IP address from the Frame's Quick Settings.
+
+   Before asking for the password it tries Valve's SteamOS devkit pairing: in
+   the headset, open Steam Settings → Developer → **Pair new host** and approve
+   the request, and no password is needed. (The service and the pairing-mode
+   step are verified on a Frame; the approval itself isn't yet. See
+   [SSH](docs/ssh.md#password-free-pairing-steamos-devkit-service).)
+3. That's it. The app now reaches the headset whenever it's awake and on the
+   same network. For anywhere else, see [Tailscale](docs/tailscale.md).
+
+**What it changes:** only what you click. Installs go to your user account on
+the Frame (`--user` Flatpaks, Lepton instances, Steam downloads, sideloaded
+games in `~/devkit-game`), and nothing
+needs `sudo` except the power buttons. On your computer it adds a `Host frame`
+entry to `~/.ssh/config` and keys at `~/.ssh/id_ed25519_frame` and
+`~/.ssh/id_rsa_frame_devkit` (the pairing service only takes RSA keys).
+
+## Feedback
+
+This is a first public test, so reports are really useful, especially from
+Windows and Linux. The quickest way is **Report a problem** in the app (the
+warning-sign button at the top, or **Help → Report a Problem…**). It adds
+diagnostics with personal details removed, shows you exactly what's included,
+and sends it privately to the maintainer; nothing is published. Without the app,
+use the [feedback form](https://frame-control.pages.dev/feedback/). Please include:
+
+- what you tried and what happened
+- your computer's OS and your SteamOS build (Steam Settings → System)
+- the server log: **Frame → Show Server Log** in the app
+
+Issues and PRs opened directly on GitHub by new contributors are auto-closed
+until a maintainer approves them; see [CONTRIBUTING.md](CONTRIBUTING.md).
+
+## Going further
+
+This repo also holds the scripts behind the app and field notes on how the
+Frame's software fits together, all checked against a real headset and labelled
+**verified** or **inferred**.
+
+| | |
+|---|---|
+| [Frame Control in detail](docs/frame-control.md) | Every feature, how it works, per-platform notes, building |
+| [Scripts and headset setup](docs/scripts.md) | The command-line helpers, minimum typing, streaming options, floating panels |
+| [How the Frame works](docs/how-the-frame-works.md) | SteamVR → gamescope → Plasma, verified facts, debugging |
+| [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 |
+| [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 |
+| [Frame Control for iPhone](docs/iphone.md) | The iPhone and iPad app, how it runs the server on the Frame, pairing |
+| [Recovery and OS images](docs/recovery-and-images.md) | Where to download the Frame's OS, what's inside, testing without the headset |
+| [AI agents and assistant](docs/agents.md) | Key-free MCP tools, human approvals, and an opt-in assistant panel |
+| [Testing](docs/testing.md) | Unit tests, end-to-end tests against a fake Frame in Docker, and the headset smoke test |
+| [Open questions](docs/open-questions.md) | What's still unchecked |
+
+<details>
+<summary><b>Security notes</b></summary>
+
+- With Developer Mode on, `sshd`, ADB and xrdp are all reachable on your LAN.
+  Each running Lepton (Android) instance opens its own ADB port in 5555–5599,
+  listening on `0.0.0.0` rather than only loopback. This was seen on the
+  device on 2026-09-25, so anyone on the network can reach it. Use trusted
+  networks only, and turn Developer Mode off when you don't need it.
+- Frame Control reaches ADB and the Steam client's DevTools port (Frame
+  loopback `127.0.0.1:8080`) only through SSH tunnels. The compatibility
+  database key (maintainer-only) is never written to the repo.
+- `steamos` has `sudo`, protected by the same Developer Mode password. Once
+  you've switched to key auth, a short password still protects `sudo` and
+  RDP, so pick one that isn't trivially guessable.
+- Don't port-forward 22, 3389, or 5555–5599 from your router. For remote access,
+  use Tailscale: `scripts/tailscale-on-frame.sh` (no sudo). In its userspace mode
+  **every** Frame port is reachable from your tailnet, including Steam's DevTools
+  on loopback 8080; see [docs/tailscale.md](docs/tailscale.md).
+</details>
+
+## Development
+
+```sh
+python3 -m unittest discover -s tests   # server tests; no headset needed
+scripts/e2e.sh                          # end-to-end against a fake Frame (Linux with Docker)
+cd app && npm install && npm start      # run the app from the checkout
+```
+
+The server is Python stdlib only; the app is Electron. GitHub Actions runs the
+tests on macOS, Windows and Linux, and a `v*` tag builds all three installers
+into a draft release, which reaches users once published. See
+[building](docs/frame-control.md#building) and [releasing](docs/releasing.md).
+
+## License
+
+[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.

apk-catalog/README.md

@@ -0,0 +1,58 @@
+# Android app catalogue and compatibility reports
+
+The data behind Frame Control's **Android apps** section: every app in the
+F-Droid main repo, rated for Lepton (the Frame's Android container), plus our
+own compatibility reports. No ProtonDB-style database for sideloaded Android
+apps on the Frame existed as of 2026-09-25 (Steam Frame Hub and Valve's
+"Great on Frame" cover Steam games only), so we keep our own.
+
+```sh
+scripts/frame-ui.sh        # Frame Control → Android apps: search, Install, Test, Report
+scripts/apk-catalog.sh     # refresh the F-Droid data (only scans what changed)
+```
+
+## Verdicts
+
+| Verdict | Meaning |
+|---|---|
+| Works on Frame | The latest report says it runs (automated Test or a person's rating) |
+| Should work | No known blocker found in the APK |
+| Might work | Something uncertain: Compose version unknown, Godot, Qt, Play Services, no launcher icon (widgets, tiles, keyboards), or a report of issues |
+| Probably crashes | Compose UI < 1.11, SDL or Kivy |
+| Won't work | Needs Android 12+ or has no 64-bit ARM build, or a report says it's broken |
+
+"Should work" means the app opens. Features that need something Lepton lacks
+(browser links, file picker, Play Services, camera app) can still fail. The
+rules and the evidence behind them are in [docs/apks.md](../docs/apks.md).
+
+## Compatibility reports
+
+Reports are saved on your Mac. The maintainer's copy of Frame Control also
+syncs them to a private Lakebed database (see
+[compat-db/README.md](../compat-db/README.md), including backups). **Test**
+records whether an app stays up in its own instance (`result`); **Report**
+(on any installed app, catalogue card, or **+ Report an APK** for anything else, e.g. an
+APK file or your own build) records `works`, `issues` or `broken`, how it was run
+(own instance, Lepton Development, other), where the APK came from, and notes. Each report carries
+the SteamOS `BUILD_ID` and the Lepton build id. Newest wins, and a person's
+rating beats an automated result (`reports.py`).
+
+## Files
+
+| File | Role |
+|---|---|
+| `zipcd.py` | Reads an APK's zip directory and single entries with HTTP range requests |
+| `scan.py` | Per app: native ABIs, frameworks (from `lib/*.so`), Compose/GMS/Firebase resource names from `resources.arsc`. Writes `data/scan.jsonl` |
+| `scan2.py` | Per app: Compose UI version, launcher/IME/feature strings from `AndroidManifest.xml`. Writes `data/scan2.jsonl` |
+| `pick.py` | Which version to rate and install: newest with an arm64 build (or no native code) and minSdk ≤ 30 |
+| `pins.json` | Versions pinned by hand (F-Droid 1.17.2) |
+| `reports.py` | How reports override predictions (the reports are in compat-db) |
+| `build.py` | Applies the rules and writes `site/apps.js` (predictions; Frame Control adds reports at runtime) |
+
+Frame Control's `ui/frame_catalog.py` loads `site/apps.js`, applies the
+reports from `ui/frame_compat_db.py`, downloads APKs (SHA-256 checked against the
+F-Droid index), and installs them with `ui/frame_android.py`.
+
+Both scans skip apps whose version hasn't changed. Compose is detected by its
+resource ids (`compose_view_saveable_id_tag`) because many apps strip the
+`META-INF` version files; those apps are rated "Might work".

apk-catalog/build.py

@@ -0,0 +1,158 @@
+"""Merge the F-Droid index, both APK scans and the on-device results into
+site/apps.js, applying the Lepton compatibility rules in docs/apks.md.
+
+Usage: python3 build.py   (run from apk-catalog/, after scan.py and scan2.py)
+"""
+import json, os, re, time
+from pick import pick_version, LEPTON_SDK
+import reports
+
+HERE = os.path.dirname(os.path.abspath(__file__))
+DATA = os.path.join(HERE, 'data')
+REPO = 'https://f-droid.org/repo'
+# Compose UI below this crashes on any Compose screen: it casts the missing
+# clipboard service to non-null while building AndroidComposeView.
+COMPOSE_OK = (1, 11)
+RANK = {'works': 0, 'likely': 1, 'maybe': 2, 'unlikely': 3, 'no': 4}
+
+
+def jsonl(path):
+    if not os.path.exists(path):
+        return {}
+    return {r['pkg']: r for r in map(json.loads, open(path))}
+
+
+def loc(d):
+    if not isinstance(d, dict):
+        return d or ''
+    return d.get('en-US') or d.get('en') or next(iter(d.values()), '')
+
+
+def ver_tuple(v):
+    m = re.match(r'(\d+)\.(\d+)', v or '')
+    return (int(m[1]), int(m[2])) if m else None
+
+
+def classify(m, s, s2):
+    """Return (verdict, reasons). Hard failures first, then crash signals."""
+    no, bad, maybe, notes = [], [], [], []
+    min_sdk = m.get('usesSdk', {}).get('minSdkVersion', 1)
+    if min_sdk > LEPTON_SDK:
+        no.append(f'Needs Android API {min_sdk}; Lepton is Android 11 (API 30), so it won\'t install')
+    native = m.get('nativecode') or s.get('abis') or []
+    if native and 'arm64-v8a' not in native:
+        no.append(f'Native code only for {", ".join(native)}; Lepton is 64-bit ARM only, so it won\'t install')
+
+    cv = s2.get('compose_ver')
+    if cv and ver_tuple(cv) and ver_tuple(cv) < COMPOSE_OK:
+        bad.append(f'Jetpack Compose {cv}: Compose screens crash (no clipboard service); 1.11+ is fine')
+    elif s.get('compose') and not cv:
+        maybe.append('Uses Jetpack Compose, version unknown: crashes if older than 1.11')
+    elif cv:
+        notes.append(f'Jetpack Compose {cv} (fine)')
+    fw = set(s.get('frameworks', []))
+    if 'sdl' in fw or s2.get('sdl3'):
+        bad.append('SDL app: registers a clipboard listener at start-up and crashes')
+    if 'kivy' in fw:
+        bad.append('Kivy (SDL) app: crashes at start-up on the missing clipboard')
+    if 'godot' in fw:
+        maybe.append('Godot: 4.3 crashed (clipboard), 4.6 worked')
+    if 'reactnative' in fw or 'hermes' in fw:
+        notes.append('React Native: 2 of 3 tested apps worked')
+    if 'qt' in fw or 'qt6' in fw:
+        maybe.append('Qt app: the one tested crashed on a missing libc++ symbol')
+    if 'flutter' in fw:
+        notes.append('Flutter (tested apps worked)')
+    if 'gdx' in fw:
+        notes.append('libGDX (tested games worked)')
+    if s.get('gms') or s2.get('gms_meta'):
+        maybe.append('Uses Google Play Services, which Lepton lacks')
+    if s2 and not s2.get('launcher'):
+        if s2.get('ime'):
+            maybe.append('Keyboard (IME), not an app you open; untested in Lepton')
+        else:
+            maybe.append('No launcher icon (widget, tile, wallpaper or plug-in)')
+    feats = s2.get('features', [])
+    if 'android.hardware.touchscreen.multitouch' in feats:
+        notes.append('Mentions multi-touch; the Frame pointer is single-touch (inferred)')
+    if any(f in feats for f in ('android.hardware.telephony', 'android.hardware.nfc')):
+        notes.append('Mentions telephony or NFC, which Lepton lacks')
+    if 'android.hardware.type.watch' in feats:
+        maybe.append('Wear OS watch app')
+
+    if no:
+        return 'no', no + bad + maybe + notes
+    if bad:
+        return 'unlikely', bad + maybe + notes
+    if maybe:
+        return 'maybe', maybe + notes
+    if not s or 'error' in s:
+        return 'maybe', ['APK not scanned'] + notes
+    return 'likely', notes or ['No known blockers']
+
+
+def finalize(app, reps):
+    """Set the shown verdict ('r', 'why', 't') from the prediction plus any reports."""
+    rv = reports.verdict(reps)
+    if rv:
+        app['r'], lines = rv
+        app['why'] = lines + ['Rule check: ' + r for r in app['pw'] if not r.startswith('No known')]
+    else:
+        app['r'], app['why'] = app['pr'], list(app['pw'])
+    app['t'] = bool(rv)
+    return app
+
+
+def load_catalog(path=None):
+    """Read site/apps.js back into a list (for serve.py and Frame Control)."""
+    src = open(path or os.path.join(HERE, 'site', 'apps.js'), encoding='utf-8').read()
+    return json.loads(src.split('window.APPS=', 1)[1].rstrip().rstrip(';'))
+
+
+def main():
+    idx = json.load(open(os.path.join(DATA, 'index-v2.json')))
+    s1 = jsonl(os.path.join(DATA, 'scan.jsonl'))
+    s2 = jsonl(os.path.join(DATA, 'scan2.jsonl'))
+    pins = json.load(open(os.path.join(HERE, 'pins.json'))) if os.path.exists(os.path.join(HERE, 'pins.json')) else {}
+    cats = idx.get('repo', {}).get('categories', {})
+    apps = []
+    for pkg, p in idx['packages'].items():
+        if not p.get('versions'):
+            continue
+        v = pick_version(p)
+        md, m = p['metadata'], v['manifest']
+        verdict, why = classify(m, s1.get(pkg, {}), s2.get(pkg, {}))
+        apk, sha, shown_ver = REPO + v['file']['name'], v['file'].get('sha256'), m.get('versionName')
+        pin = pins.get(pkg)
+        if pin:
+            apk, sha, shown_ver = pin['apk'], pin['sha256'], pin['version']
+            why = [pin['why']] + why
+        icon = loc(md.get('icon'))
+        apps.append(finalize({
+            'p': pkg,
+            'n': loc(md.get('name')) or pkg,
+            's': loc(md.get('summary')),
+            'c': [loc(cats.get(c, {}).get('name')) or c for c in md.get('categories', [])],
+            'i': REPO + icon['name'] if isinstance(icon, dict) and icon.get('name') else '',
+            'v': shown_ver,
+            'z': v['file'].get('size'),
+            'u': md.get('lastUpdated'),
+            'a': apk,
+            'h': sha,
+            'af': sorted(v.get('antiFeatures', {}).keys()),
+            'pr': verdict,
+            'pw': why,
+        }, None))
+    apps.sort(key=lambda a: (RANK[a['r']], a['n'].lower()))
+    out = os.path.join(HERE, 'site', 'apps.js')
+    meta = {'built': time.strftime('%Y-%m-%d'), 'count': len(apps),
+            'source': 'F-Droid main repo, rated on the newest version each app has that Lepton can install'}
+    with open(out, 'w') as f:
+        f.write('window.CATALOG_META=' + json.dumps(meta) + ';\n')
+        f.write('window.APPS=' + json.dumps(apps, separators=(',', ':'), ensure_ascii=False) + ';\n')
+    counts = {k: sum(a['r'] == k for a in apps) for k in RANK}
+    print(out, counts)
+
+
+if __name__ == '__main__':
+    main()

apk-catalog/pick.py

@@ -0,0 +1,19 @@
+"""Choose which F-Droid version of an app to rate and install.
+
+F-Droid often publishes one APK per ABI under different version codes, and
+the highest code is frequently the x86_64 build. Prefer the newest version
+Lepton can install (arm64-v8a or no native code, minSdk <= 30), else the newest.
+"""
+LEPTON_SDK = 30
+
+
+def installable(v):
+    m = v['manifest']
+    native = m.get('nativecode') or []
+    return (not native or 'arm64-v8a' in native) and \
+        m.get('usesSdk', {}).get('minSdkVersion', 1) <= LEPTON_SDK
+
+
+def pick_version(p):
+    vs = sorted(p['versions'].values(), key=lambda v: v['manifest'].get('versionCode', 0), reverse=True)
+    return next((v for v in vs if installable(v)), vs[0])

apk-catalog/pins.json

@@ -0,0 +1,8 @@
+{
+ "org.fdroid.fdroid": {
+  "apk": "https://f-droid.org/archive/org.fdroid.fdroid_1017002.apk",
+  "sha256": "756b7dfc7fb43ef28c27d276428a2f7826cd482fd794bbd9eeaef24016b2081c",
+  "version": "1.17.2",
+  "why": "Pinned to 1.17.2: 1.23.2 crashed (old Compose). 2.0 uses Compose 1.12 but is untested. Don't let it update itself."
+ }
+}

apk-catalog/reports.py

@@ -0,0 +1,33 @@
+"""How compatibility reports turn into a verdict. The reports themselves live
+in Frame Control's private database (ui/frame_compat_db.py, a Lakebed capsule
+in compat-db/); this module is the pure logic shared by the build and the app.
+
+A report: package, version, result (runs | crashes | install_failed |
+instance_failed, from an automated test), rating (works | issues | broken, from
+a person), notes, via (harness | probe | user), date, steamos, lepton, runtime.
+Newest wins, and a person's rating beats an automated result.
+"""
+
+
+def verdict(reports):
+    """(verdict, summary lines) for one package's reports, or None."""
+    if not reports:
+        return None
+    rs = sorted(reports, key=lambda r: r.get('date') or '')
+    people = [r for r in rs if r.get('rating')]
+    best = people[-1] if people else rs[-1]
+    kind = best.get('rating') or best.get('result')
+    v = {'works': 'works', 'runs': 'works', 'issues': 'maybe'}.get(kind, 'no')
+    n_ok = sum((r.get('rating') or r.get('result')) in ('works', 'runs') for r in rs)
+    lines = [f"Reported on a Frame {(best.get('date') or '')[:10]} (v{best.get('version')}): "
+             f"{kind}{' – ' + best['notes'] if best.get('notes') else ''}"]
+    if len(rs) > 1:
+        lines.append(f'{len(rs)} reports, {n_ok} working')
+    return v, lines
+
+
+def by_package(reports):
+    out = {}
+    for r in reports:
+        out.setdefault(r['package'], []).append(r)
+    return out

apk-catalog/scan.py

@@ -0,0 +1,123 @@
+"""Scan F-Droid APKs (latest version per app) for Steam Frame / Lepton signals.
+
+Reads only the zip central directory and the resources.arsc key-string pool
+through HTTP range requests. Output: one JSON line per package (resumable).
+"""
+import json, os, struct, sys, zlib, threading
+from concurrent.futures import ThreadPoolExecutor, as_completed
+import zipcd
+from pick import pick_version
+
+REPO = 'https://f-droid.org/repo'
+HERE = os.path.dirname(os.path.abspath(__file__))
+IDX = os.path.join(HERE, 'data', 'index-v2.json')
+OUT = os.path.join(HERE, 'data', 'scan.jsonl')
+
+KEYS = {
+    'compose': [b'compose_view_saveable_id_tag', b'wrapped_composition_tag',
+                b'androidx_compose_ui_view_compositionlocal_map'],
+    'gms': [b'common_google_play_services_unknown_issue',
+            b'common_google_play_services_install_title'],
+    'firebase': [b'google_app_id', b'gcm_defaultSenderId'],
+}
+LIBS = {
+    'unity': 'libunity.so', 'flutter': 'libflutter.so', 'reactnative': 'libreactnative',
+    'hermes': 'libhermes', 'godot': 'libgodot_android.so', 'gdx': 'libgdx.so',
+    'sdl': 'libSDL2.so', 'unreal': 'libUE4.so', 'unreal5': 'libUnreal.so',
+    'xamarin': 'libmonodroid.so', 'qt': 'libQt5Core', 'qt6': 'libQt6Core',
+    'cocos': 'libcocos', 'love': 'liblove.so', 'renpy': 'librenpy',
+    'kivy': 'libpython', 'gomobile': 'libgojni.so',
+}
+
+
+def arsc_keys(url, entries):
+    comp, csize, lho = entries['resources.arsc']
+    h = zipcd.rng(url, lho, lho + 29)
+    nl, el = struct.unpack('<HH', h[26:30])
+    base = lho + 30 + nl + el
+    if comp == 8:
+        blob = zlib.decompress(zipcd.rng(url, base, base + csize - 1), -15)
+        read = lambda o, n: blob[o:o + n]
+    elif comp == 0:
+        read = lambda o, n: zipcd.rng(url, base + o, base + o + n - 1)
+    else:
+        raise ValueError(f'arsc compression {comp}')
+    th = read(0, 12)
+    if struct.unpack('<H', th[:2])[0] != 2:
+        raise ValueError('not a ResTable')
+    off = struct.unpack('<H', th[2:4])[0]
+    pools = []
+    total = struct.unpack('<I', th[4:8])[0]
+    while off < total:
+        ch = read(off, 8)
+        ctype, chdr, csz = struct.unpack('<HHI', ch)
+        if ctype == 0x0200:  # package
+            ph = read(off, 288)
+            key_off = struct.unpack('<I', ph[8 + 4 + 256 + 8:8 + 4 + 256 + 12])[0]
+            kh = read(off + key_off, 8)
+            ksz = struct.unpack('<I', kh[4:8])[0]
+            pools.append(read(off + key_off, ksz))
+        if csz <= 0:
+            break
+        off += csz
+    return b''.join(pools)
+
+
+def scan(pkg, meta, ver):
+    f = ver['file']
+    url = REPO + f['name']
+    m = ver['manifest']
+    r = {'pkg': pkg, 'vc': m.get('versionCode'), 'vn': m.get('versionName'),
+         'apk': url, 'size': f.get('size')}
+    try:
+        names, entries, _ = zipcd.list_names(url, f['size'])
+        libs = {n for n in names if n.startswith('lib/')}
+        r['frameworks'] = sorted(k for k, s in LIBS.items() if any(s in n for n in libs))
+        r['abis'] = sorted({n.split('/')[1] for n in libs if n.count('/') >= 2})
+        r['metainf_compose'] = any(n.startswith('META-INF/androidx.compose.ui') for n in names)
+        r['assets_bin_data'] = any(n.startswith('assets/bin/Data/') for n in names)
+        if 'resources.arsc' in entries:
+            kp = arsc_keys(url, entries)
+            for k, pats in KEYS.items():
+                r[k] = any(p in kp or p.decode().encode('utf-16-le') in kp for p in pats)
+        else:
+            r['no_arsc'] = True
+    except Exception as e:  # keep going; record the failure
+        r['error'] = f'{type(e).__name__}: {e}'[:200]
+    return r
+
+
+def main():
+    idx = json.load(open(IDX))
+    done = set()
+    if os.path.exists(OUT):
+        for line in open(OUT):
+            try:
+                r = json.loads(line)
+                done.add((r['pkg'], r.get('vc')))
+            except Exception:
+                pass
+    jobs = []
+    for pkg, p in idx['packages'].items():
+        if not p.get('versions'):
+            continue
+        ver = pick_version(p)
+        if (pkg, ver['manifest'].get('versionCode')) not in done:
+            jobs.append((pkg, p['metadata'], ver))
+    print(f'{len(done)} done, {len(jobs)} to scan', flush=True)
+    lock = threading.Lock()
+    n = 0
+    with open(OUT, 'a') as out, ThreadPoolExecutor(int(os.environ.get('WORKERS', '12'))) as ex:
+        futs = [ex.submit(scan, *j) for j in jobs]
+        for fu in as_completed(futs):
+            r = fu.result()
+            with lock:
+                out.write(json.dumps(r) + '\n'); out.flush()
+                n += 1
+                if n % 100 == 0:
+                    print(f'{n}/{len(jobs)}', flush=True)
+    print('finished', flush=True)
+
+
+if __name__ == '__main__':
+    main()

apk-catalog/scan2.py

@@ -0,0 +1,80 @@
+"""Second pass: Compose UI version, launcher activity, GMS meta-data, uses-feature
+strings from AndroidManifest.xml (binary XML string pool). Resumable JSONL."""
+import json, os, struct, sys, threading
+from concurrent.futures import ThreadPoolExecutor, as_completed
+import zipcd
+
+HERE = os.path.dirname(os.path.abspath(__file__))
+IN = os.path.join(HERE, 'data', 'scan.jsonl')
+OUT = os.path.join(HERE, 'data', 'scan2.jsonl')
+FEATURES = ['android.hardware.touchscreen.multitouch', 'android.hardware.telephony',
+            'android.hardware.nfc', 'android.hardware.bluetooth_le', 'android.hardware.usb.host',
+            'android.hardware.camera', 'android.hardware.vr.high_performance',
+            'android.software.leanback', 'android.hardware.type.watch']
+
+
+def axml_strings(b):
+    # ResXMLTree_header (8) then string pool chunk
+    off = struct.unpack('<H', b[2:4])[0]
+    t, hs, sz, cnt, _styles, flags, sstart, _ = struct.unpack('<HHIIIIII', b[off:off + 28])
+    utf8 = flags & 0x100
+    offs = struct.unpack(f'<{cnt}I', b[off + hs:off + hs + 4 * cnt])
+    base = off + sstart
+    out = []
+    for o in offs:
+        p = base + o
+        if utf8:
+            n = b[p]; p += 2 if n & 0x80 else 1
+            n = b[p]; hi = n & 0x80
+            if hi:
+                n = ((n & 0x7f) << 8) | b[p + 1]; p += 2
+            else:
+                p += 1
+            out.append(b[p:p + n].decode('utf-8', 'replace'))
+        else:
+            n = struct.unpack('<H', b[p:p + 2])[0]; p += 2
+            if n & 0x8000:
+                n = ((n & 0x7fff) << 16) | struct.unpack('<H', b[p:p + 2])[0]; p += 2
+            out.append(b[p:p + 2 * n].decode('utf-16-le', 'replace'))
+    return out
+
+
+def scan(r):
+    o = {'pkg': r['pkg'], 'vc': r.get('vc')}
+    try:
+        names, ent, _ = zipcd.list_names(r['apk'], r['size'])
+        for n in ('META-INF/androidx.compose.ui_ui.version', 'META-INF/androidx.compose.ui_ui-android.version'):
+            if n in ent:
+                o['compose_ver'] = zipcd.read_entry(r['apk'], ent, n).decode().strip()
+                break
+        o['sdl3'] = any(n.endswith('/libSDL3.so') for n in names)
+        s = set(axml_strings(zipcd.read_entry(r['apk'], ent, 'AndroidManifest.xml')))
+        o['launcher'] = 'android.intent.category.LAUNCHER' in s
+        o['leanback_launcher'] = 'android.intent.category.LEANBACK_LAUNCHER' in s
+        o['gms_meta'] = 'com.google.android.gms.version' in s
+        o['ime'] = 'android.view.InputMethod' in s
+        o['features'] = [f for f in FEATURES if f in s]
+    except Exception as e:
+        o['error2'] = f'{type(e).__name__}: {e}'[:200]
+    return o
+
+
+def main():
+    rows = list({r['pkg']: r for r in map(json.loads, open(IN))}.values())  # latest per app
+    done = set()
+    if os.path.exists(OUT):
+        done = {(o['pkg'], o.get('vc')) for o in map(json.loads, open(OUT))}
+    rows = [r for r in rows if (r['pkg'], r.get('vc')) not in done and 'error' not in r]
+    print(len(done), 'done', len(rows), 'todo', flush=True)
+    lock = threading.Lock(); n = 0
+    with open(OUT, 'a') as out, ThreadPoolExecutor(int(os.environ.get('WORKERS', '40'))) as ex:
+        for fu in as_completed([ex.submit(scan, r) for r in rows]):
+            with lock:
+                out.write(json.dumps(fu.result()) + '\n'); out.flush(); n += 1
+                if n % 200 == 0:
+                    print(n, flush=True)
+    print('finished', flush=True)
+
+
+if __name__ == '__main__':
+    main()

apk-catalog/site/apps.js

@@ -0,0 +1,2 @@
+window.CATALOG_META={"built": "2026-09-25", "count": 4455, "source": "F-Droid main repo, rated on the newest version each app has that Lepton can install"};
+window.APPS=[{"p":"com.terokarvinen.x54ask","n":"0x54ask","s":"Todo.txt manager. Offline, works with Syncthing. Fork of SimpleTask Cloudless","c":["Calendar & Agenda","Note","Task"],"i":"https://f-droid.org/repo/com.terokarvinen.x54ask/en-US/icon_FOzSYq6etfsaWRiMc7bx-8vLVKtsug1dmhT9NvxRj9w=.png","v":"1.1.2 (fork of Simpletask)","z":13037003,"u":1788427366142,"a":"https://f-droid.org/repo/com.terokarvinen.x54ask_1010200.apk","h":"f05781226bb84205caa5b5aa6a511afcb8df86de8bc4b53e33b7de34c2940e8a","af":[],"pr":"likely","pw":["No known blockers"],"r":"likely","why":["No known blockers"],"t":false},{"p":"com.github.ashutoshgngwr.tenbitclockwidget","n":"10-bit Clock Widget","s":"A beautiful BCD clock for your home screen","c":["Clock"],"i":"https://f-droid.org/repo/com.github.ashutoshgngwr.tenbitclockwidget/en-US/icon_TrUyJLRoXZGniCc2uQM3OnsVmlOokr_KZk0ZQaPrtjY=.png","v":"2.2-1","z":1281564,"u":1696789501000,"a":"https://f-droid.org/repo/com.github.ashutoshgngwr.tenbitclockwidget_221.apk","h":"35ff9940fd3d73acd1099f3640be6367c311ec9f6c34fa17e4748e874ecfe763","af":[],"pr":"likely","pw":["No known blockers"],"r":"likely","why":["No known blockers"],"t":false},{"p":"dev.lonami.klooni","n":"1010! Klooni","s":"A libGDX game based on 1010","c":["Puzzle Game"],"i":"https://f-droid.org/repo/icons/dev.lonami.klooni.860.png","v":"0.8.6","z":2735506,"u":1598918400000,"a":"https://f-droid.org/repo/dev.lonami.klooni_860.apk","h":"55641cdb5dba7f30c1d229cf8a34f390a8ff6b3f60cdff9b45d277919f33ce24","af":[],"pr":"likely","pw":["libGDX (tested games worked)"],"r":"likely","why":["libGDX (tested games worked)"],"t":false},{"p":"eu.quelltext.counting","n":"12345 - Learn Counting","s":"Learn counting in different languages with pictures","c":["Educational Game","Science & Education"],"i":"https://f-droid.org/repo/eu.quelltext.counting/en-US/icon_30ymRTCTMZiTzSNXPRLEOukBSubDfmp1CV_cpbGudKw=.png","v":"1.3","z":2413060,"u":1646352000000,"a":"https://f-droid.org/repo/eu.quelltext.counting_3.apk","h":"98fe65f21ff8e51918b94e80d25d99d52f5527d24a69dcd8dd9ca1a5da9b7a02","af":[],"pr":"likely","pw":["No known blockers"],"r":"likely","why":["No known blockers"],"t":false},{"p":"com.roufsyed.onekey","n":"1Key Password Manager","s":"Offline password manager. 2FA + notes. No account, no network, no telemetry.","c":["Password & 2FA","Security"],"i":"https://f-droid.org/repo/com.roufsyed.onekey/en-US/icon_7Oq_UnE5rGthf-UdC05ENbWiZZe00b9J8cKU2qrdVMQ=.png","v":"1.1.1","z":4738420,"u":1784362608829,"a":"https://f-droid.org/repo/com.roufsyed.onekey_3.apk","h":"690a58bb75780d9f835183ae6deb563e06db659218a4275ddd40ba15353d66ce","af":[],"pr":"likely","pw":["Jetpack Compose 1.11.2 (fine)"],"r":"likely","why":["Jetpack Compose 1.11.2 (fine)"],"t":false},{"p":"org.og8.a1tox","n":"1toX","s":"Remember numbers quick to train your brain","c":["Educational Game"],"i":"https://f-droid.org/repo/icons/org.og8.a1tox.1.png","v":"1.00","z":639637,"u":1567641600000,"a":"https://f-droid.org/repo/org.og8.a1tox_1.apk","h":"34895a84a638d53bd5ed57d134511eee9468f5461cb0e41874a1968ac256e4c8","af":[],"pr":"likely","pw":["No known blockers"],"r":"likely","why":["No known blockers"],"t":false},{"p":"com.dasp.worldcup2026","n":"2026 Football Fixtures Widget","s":"2026 football fixtures and widgets.","c":["Sports & Health"],"i":"","v":"0.1.0","z":33934,"u":1780506857489,"a":"https://f-droid.org/repo/com.dasp.worldcup2026_1.apk","h":"8c7b60c9cef5a6343f000f12ff0a0714bc6f3de72ced17c57f1ce4a147bc4a67","af":["NonFreeNet"],"pr":"likely","pw":["No known blockers"],"r":"likely","why":["No known blockers"],"t":false},{"p":"org.secuso.privacyfriendly2048","n":"2048 (Privacy Friendly)","s":"(SECUSO) Try to reach 2048 in this puzzle game","c":["Puzzle Game"],"i":"https://f-droid.org/repo/org.secuso.privacyfriendly2048/en-US/icon__EtkwPp725lQQYnzjkzDUiOqD2X5nnY1CiZSIYN9TVU=.png","v":"1.4.2","z":9294779,"u":1753701498000,"a":"https://f-droid.org/repo/org.secuso.privacyfriendly2048_100.apk","h":"02c799d3d582669daf2acf920093c68d2933f60aa937bb72fa2a805557233fe8","af":[],"pr":"likely","pw":["No known blockers"],"r":"likely","why":["No known blockers"],"t":false},{"p":"org.mattvchandler.a2050","n":"2050","s":"A game loosely based on 2048, but with circles instead of squares","c":["Puzzle Game"],"i":"https://f-droid.org/repo/org.mattvchandler.a2050/en-US/icon_3BMQD76YZDYHbtVP8WR8CTKi6E7pd6L82YveKdLHjR4=.png","v":"1.0.10","z":5079962,"u":1693608133000,"a":"https://f-droid.org/repo/org.mattvchandler.a2050_190010010.apk","h":"98a0e75e589c319093db56cf98bfa32d920b9436a9cbe7c30b32dcf7a4a6d284","af":[],"pr":"likely","pw":["No known blockers"],"r":"likely","why":["No known blockers"],"t":false},{"p":"nl.eventinfra.wifisetup","n":"37C3 Wifi Setup","s":"Official NOC application for connecting to the 36C3 Wi-Fi","c":["Connectivity"],"i":"","v":"0.37","z":2405866,"u":1729155289000,"a":"https://f-droid.org/repo/nl.eventinfra.wifisetup_20231222.apk","h":"aa0ca052e9e48ad7945f9aa535f5fd691018a5356a8ff95b0e5bf94662a54a10"Line truncated

apk-catalog/zipcd.py

@@ -0,0 +1,31 @@
+import struct, urllib.request, zlib
+UA={'User-Agent':'steam-frame-compat-scan/1.0'}
+def rng(url, start, end=None):
+    h=dict(UA); h['Range']=f'bytes={start}-' if end is None else f'bytes={start}-{end}'
+    with urllib.request.urlopen(urllib.request.Request(url,headers=h),timeout=60) as r:
+        return r.read()
+def tail(url, n):
+    h=dict(UA); h['Range']=f'bytes=-{n}'
+    with urllib.request.urlopen(urllib.request.Request(url,headers=h),timeout=60) as r:
+        return r.read()
+def list_names(url, size):
+    t=tail(url, min(size, 65557))
+    i=t.rfind(b'PK\x05\x06')
+    if i<0: raise ValueError('no EOCD')
+    cd_size, cd_off = struct.unpack('<II', t[i+12:i+20])
+    base=size-len(t)
+    cd = t[cd_off-base:cd_off-base+cd_size] if cd_off>=base else rng(url, cd_off, cd_off+cd_size-1)
+    names=[]; p=0; entries={}
+    while p+46<=len(cd) and cd[p:p+4]==b'PK\x01\x02':
+        comp,=struct.unpack('<H',cd[p+10:p+12])
+        csize,usize=struct.unpack('<II',cd[p+20:p+28])
+        nl,el,cl=struct.unpack('<HHH',cd[p+28:p+34]); lho,=struct.unpack('<I',cd[p+42:p+46])
+        n=cd[p+46:p+46+nl].decode('utf-8','replace'); names.append(n); entries[n]=(comp,csize,lho)
+        p+=46+nl+el+cl
+    return names, entries, cd_size
+def read_entry(url, entries, name):
+    comp,csize,lho=entries[name]
+    h=rng(url, lho, lho+29)
+    nl,el=struct.unpack('<HH',h[26:30])
+    data=rng(url, lho+30+nl+el, lho+30+nl+el+csize-1)
+    return zlib.decompress(data,-15) if comp==8 else data

app/.gitignore

@@ -0,0 +1,3 @@
+node_modules/
+dist/
+build/deps/

app/build/fetch-deps.js

@@ -0,0 +1,154 @@
+// 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. 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");
+const https = require("https");
+const path = require("path");
+const { execFileSync } = require("child_process");
+
+const PY = "3.12.14+20260924";
+const PY_URL = (triple) => "https://github.com/astral-sh/python-build-standalone/releases/download/"
+  + `${PY.split("+")[1]}/cpython-${PY}-${triple}-install_only_stripped.tar.gz`;
+const PYTHON = {
+  "mac-arm64": ["aarch64-apple-darwin", "c2edb321cd32ec2b170df208db0446dccc4398db602ca27cf2079098fb1f7d9d"],
+  "win-x64": ["x86_64-pc-windows-msvc", "c5bf8edfe858c1df9891be498b5bbc8761d383df5b9790658b088fea4870433a"],
+  "linux-x64": ["x86_64-unknown-linux-gnu", "269b2c99e4db15b242bf01832f4fea1e8f1a664f273cff519393f296e9820b41"],
+  "linux-arm64": ["aarch64-unknown-linux-gnu", "c8499b61252c433280f134df954464d19811527b31cb920c35fc6967c1222e35"],
+};
+
+// Google publishes no arm64 Linux platform-tools; there the app uses the system adb.
+const PT = "37.0.1";
+const PT_URL = (os) => `https://dl.google.com/android/repository/platform-tools_r${PT}-${os}.zip`;
+const TOOLS = {
+  mac: ["darwin", "ee39ad5967e95c2a07f04dbcbde96b1a0c916ba376096db5d2f498b7727a5d1d", ["adb"]],
+  win: ["win", "45f4d63113e895ebde0c90f194099a4676b6ac653bd28d54314a9e022bbc1a99",
+        ["adb.exe", "AdbWinApi.dll", "AdbWinUsbApi.dll", "libwinpthread-1.dll"]],
+  linux: ["linux", "d230f13842f60f782a8645f9c813f8f845bf36089ea7289f28c48f17979313f1", ["adb"]],
+};
+
+// Mozilla's CA list, as curl publishes it: Python on Windows only trusts roots
+// already in the Windows store (see frame_host.trust_bundled_cas).
+const CA = "2026-09-25";
+const CA_SHA256 = "a41b5d356aea97a529fe27e0f7316d2f9d946d75927476cf9cf1b90637d00505";
+
+// Parts of Python the server never imports (GUI, tests, packaging, headers).
+const PRUNE = [
+  "include", "share", "Scripts", "libs", "tcl", "lib/pkgconfig", "lib/itcl4", "lib/tcl8", "lib/tcl8.6",
+  "lib/tk8.6", "lib/thread2.8", "bin/idle3", "bin/idle3.12", "bin/pip", "bin/pip3", "bin/pip3.12",
+  "bin/pydoc3", "bin/pydoc3.12", "bin/2to3", "bin/2to3-3.12", "bin/python3-config", "bin/python3.12-config",
+  ...["test", "idlelib", "tkinter", "turtledemo", "ensurepip", "lib2to3", "site-packages/pip", "pydoc_data", "venv"]
+    .flatMap((d) => [`lib/python3.12/${d}`, `Lib/${d}`]),
+];
+
+function get(url, redirects = 5) {
+  return new Promise((resolve, reject) => {
+    https.get(url, { timeout: 60000 }, (res) => {
+      if (res.statusCode >= 300 && res.statusCode < 400 && res.headers.location) {
+        res.resume();
+        if (!redirects) return reject(new Error(`${url}: too many redirects`));
+        let next;
+        try { next = new URL(res.headers.location, url).href; }
+        catch { return reject(new Error(`${url}: bad redirect ${res.headers.location}`)); }
+        return resolve(get(next, redirects - 1));
+      }
+      if (res.statusCode !== 200) return reject(new Error(`${url}: HTTP ${res.statusCode}`));
+      const chunks = [];
+      res.on("data", (c) => chunks.push(c));
+      res.on("end", () => resolve(Buffer.concat(chunks)));
+    }).on("timeout", function () { this.destroy(new Error(`${url}: timed out`)); }).on("error", reject);
+  });
+}
+
+async function download(url, sha256, file) {
+  const data = await get(url);
+  const sum = crypto.createHash("sha256").update(data).digest("hex");
+  if (sum !== sha256) throw new Error(`checksum mismatch for ${url}: ${sum}`);
+  fs.writeFileSync(file, data);
+}
+
+// Windows' own bsdtar: Git's GNU tar, often first on PATH, reads C:\ as a remote host.
+const TAR = process.platform === "win32" ? path.join(process.env.SystemRoot || "C:\\Windows", "System32", "tar.exe") : "tar";
+
+function extract(file, dir) {
+  fs.mkdirSync(dir, { recursive: true });
+  // bsdtar (macOS, Windows 10+) reads zip files; GNU tar doesn't, so fall back to unzip.
+  try { execFileSync(TAR, ["-xf", file, "-C", dir]); }
+  catch (e) {
+    if (!file.endsWith(".zip")) throw e;
+    execFileSync("unzip", ["-q", "-o", file, "-d", dir]);
+  }
+  fs.rmSync(file);
+}
+
+async function fetch(os, arch) {
+  const key = `${os}-${arch}`;
+  if (!PYTHON[key]) throw new Error(`no bundle for ${key}`);
+  const out = path.join(__dirname, "deps", key);
+  const stamp = path.join(out, ".version");
+  const version = `python ${PY}, platform-tools ${PT}, CA ${CA}`;
+  if (fs.existsSync(stamp) && fs.readFileSync(stamp, "utf8") === version) {
+    console.log(`${key}: already fetched (${version})`);
+    return;
+  }
+  fs.rmSync(out, { recursive: true, force: true });
+  fs.mkdirSync(out, { recursive: true });
+
+  const [triple, pySha] = PYTHON[key];
+  const tgz = path.join(out, "python.tar.gz");
+  await download(PY_URL(triple), pySha, tgz);
+  extract(tgz, out);  // unpacks to python/
+  for (const p of PRUNE) fs.rmSync(path.join(out, "python", p), { recursive: true, force: true });
+  const stdlib = path.join(out, "python", "lib", "python3.12");  // macOS and Linux: drop the static libpython
+  if (fs.existsSync(stdlib)) {
+    for (const d of fs.readdirSync(stdlib)) {
+      if (d.startsWith("config-3.12")) fs.rmSync(path.join(stdlib, d), { recursive: true, force: true });
+    }
+  }
+
+  const tools = path.join(out, "tools");
+  fs.mkdirSync(tools);
+  if (!(os === "linux" && arch === "arm64")) {
+    const [name, ptSha, keep] = TOOLS[os];
+    const zip = path.join(out, "pt.zip");
+    const tmp = path.join(out, "pt");
+    await download(PT_URL(name), ptSha, zip);
+    extract(zip, tmp);
+    for (const f of [...keep, "NOTICE.txt", "source.properties"]) {
+      fs.copyFileSync(path.join(tmp, "platform-tools", f), path.join(tools, f));
+    }
+    if (os !== "win") fs.chmodSync(path.join(tools, "adb"), 0o755);
+    fs.rmSync(tmp, { recursive: true, force: true });
+  }
+  await download(`https://curl.se/ca/cacert-${CA}.pem`, CA_SHA256, path.join(tools, "cacert.pem"));
+  fs.writeFileSync(stamp, version);
+  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/build/icon.svg

@@ -0,0 +1,30 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024">
+  <defs>
+    <linearGradient id="bg" x1="0" y1="0" x2="1" y2="1">
+      <stop offset="0" stop-color="#1a9fff"/>
+      <stop offset="1" stop-color="#6f42c1"/>
+    </linearGradient>
+    <linearGradient id="visor" x1="0" y1="0" x2="0" y2="1">
+      <stop offset="0" stop-color="#ffffff"/>
+      <stop offset="1" stop-color="#dfe8f5"/>
+    </linearGradient>
+    <clipPath id="tile"><rect x="100" y="100" width="824" height="824" rx="185"/></clipPath>
+    <mask id="nose">
+      <rect width="1024" height="1024" fill="#fff"/>
+      <ellipse cx="512" cy="690" rx="78" ry="96" fill="#000"/>
+    </mask>
+    <filter id="shadow" x="-20%" y="-20%" width="140%" height="140%">
+      <feDropShadow dx="0" dy="18" stdDeviation="22" flood-color="#0b1020" flood-opacity=".35"/>
+    </filter>
+  </defs>
+  <g clip-path="url(#tile)">
+    <rect x="100" y="100" width="824" height="824" fill="url(#bg)"/>
+  </g>
+  <g filter="url(#shadow)">
+    <rect x="222" y="350" width="580" height="320" rx="130" fill="url(#visor)" mask="url(#nose)"/>
+  </g>
+  <rect x="300" y="430" width="160" height="124" rx="50" fill="#13233a"/>
+  <rect x="564" y="430" width="160" height="124" rx="50" fill="#13233a"/>
+  <rect x="320" y="448" width="56" height="30" rx="15" fill="#66c0f4" opacity=".9"/>
+  <rect x="584" y="448" width="56" height="30" rx="15" fill="#66c0f4" opacity=".9"/>
+</svg>

app/build/make-icon.js

@@ -0,0 +1,32 @@
+// Renders build/icon.svg to icon.png (1024px) and icon.icns. Run: npm run icon
+const { app, BrowserWindow } = require("electron");
+const { execFileSync } = require("child_process");
+const fs = require("fs");
+const os = require("os");
+const path = require("path");
+
+app.dock?.hide();
+app.whenReady().then(async () => {
+  const win = new BrowserWindow({ width: 1024, height: 1024, show: false, transparent: true, frame: false,
+                                  useContentSize: true, webPreferences: { offscreen: true } });
+  const svg = fs.readFileSync(path.join(__dirname, "icon.svg"), "utf8");
+  await win.loadURL("data:text/html," + encodeURIComponent(
+    `<body style="margin:0;background:transparent">${svg}</body>`));
+  await new Promise((r) => setTimeout(r, 300));
+  const png = (await win.webContents.capturePage({ x: 0, y: 0, width: 1024, height: 1024 }))
+    .resize({ width: 1024, height: 1024 }).toPNG();
+  fs.writeFileSync(path.join(__dirname, "icon.png"), png);
+
+  const set = fs.mkdtempSync(path.join(os.tmpdir(), "icon-")) + "/icon.iconset";
+  fs.mkdirSync(set);
+  for (const size of [16, 32, 128, 256, 512]) {
+    for (const scale of [1, 2]) {
+      const px = size * scale, name = `icon_${size}x${size}${scale === 2 ? "@2x" : ""}.png`;
+      execFileSync("sips", ["-z", String(px), String(px), path.join(__dirname, "icon.png"),
+                            "--out", path.join(set, name)], { stdio: "ignore" });
+    }
+  }
+  execFileSync("iconutil", ["-c", "icns", set, "-o", path.join(__dirname, "icon.icns")]);
+  console.log("wrote build/icon.png and build/icon.icns");
+  app.quit();
+});

app/install-link.js

@@ -0,0 +1,33 @@
+// Parses frame-control://install?manifest=URL and frame-control://install?url=URL
+// (see docs/web-install.md). Pure, so it runs under plain node for the tests.
+// This is only a first filter: ui/frame_webinstall.py applies the full URL rules
+// (HTTPS, no private addresses, redirects) before anything is fetched.
+const SCHEME = "frame-control";
+const MAX_LINK = 4096;
+const MAX_URL = 2048;
+
+// {kind: "manifest" | "url", target} or null if raw isn't a usable install link.
+function parseInstallLink(raw) {
+  if (typeof raw !== "string" || raw.length > MAX_LINK || !raw.toLowerCase().startsWith(`${SCHEME}:`)) return null;
+  let link;
+  try { link = new URL(raw); } catch { return null; }
+  // frame-control://install?… puts "install" in the host; accept a trailing slash too.
+  if (link.protocol !== `${SCHEME}:` || link.hostname !== "install" || !["", "/"].includes(link.pathname)) return null;
+  const keys = [...new Set(link.searchParams.keys())];
+  if (keys.length !== 1 || !["manifest", "url"].includes(keys[0])) return null;
+  const values = link.searchParams.getAll(keys[0]);
+  if (values.length !== 1) return null;
+  const target = values[0];
+  if (!target || target.length > MAX_URL) return null;
+  let parsed;
+  try { parsed = new URL(target); } catch { return null; }
+  if (!["https:", "http:"].includes(parsed.protocol) || parsed.username || parsed.password) return null;
+  return { kind: keys[0], target };
+}
+
+// The link among command-line arguments (Windows and Linux pass it there).
+function linkFromArgv(argv) {
+  return (argv || []).find((a) => typeof a === "string" && a.toLowerCase().startsWith(`${SCHEME}:`)) || null;
+}
+
+module.exports = { SCHEME, parseInstallLink, linkFromArgv };

app/main.js

@@ -0,0 +1,593 @@
+// 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, Notification, clipboard, dialog, ipcMain, nativeImage, shell } = require("electron");
+const { execFile, spawn } = require("child_process");
+const { promisify } = require("util");
+const fs = require("fs");
+const http = require("http");
+const net = require("net");
+const os = require("os");
+const path = require("path");
+const { SCHEME, parseInstallLink, linkFromArgv } = require("./install-link");
+const updater = require("./updater");
+
+const run = promisify(execFile);
+
+const IS_MAC = process.platform === "darwin";
+const IS_WIN = process.platform === "win32";
+
+// Packaged: <resources>/{ui,scripts,python}. Dev: the repo checkout.
+const ROOT = app.isPackaged ? process.resourcesPath : path.join(__dirname, "..");
+const TOOLS = path.join(ROOT, "tools");  // bundled adb and CA certificates
+const SERVER = path.join(ROOT, "ui", "server.py");
+const SCRIPTS = path.join(ROOT, "scripts");
+const LOG_DIR = IS_MAC ? path.join(os.homedir(), "Library", "Logs", "Frame Control")
+                       : path.join(app.getPath("userData"), "logs");
+const LOG = path.join(LOG_DIR, "server.log");
+const BG = "#0d1117";
+const FRAME = process.env.FRAME_ALIAS || "frame";
+
+let server = null;
+let url = null;
+let win = null;
+let quitting = false;
+let python = null;
+
+// Apps launched from Finder get PATH=/usr/bin:/bin:/usr/sbin:/sbin, which misses
+// Homebrew's python3, rsync and adb (desktop launchers on Linux can be as bare).
+// Take PATH from the login shell instead. Windows has no login shell to ask.
+// Runs asynchronously so a slow shell profile can't freeze the window.
+let cachedPath = null;
+async function loginPath() {
+  if (IS_WIN) return process.env.PATH || "";
+  if (cachedPath) return cachedPath;
+  const shellPath = os.userInfo().shell || process.env.SHELL || (IS_MAC ? "/bin/zsh" : "/bin/sh");
+  const extra = IS_MAC ? ["/opt/homebrew/bin", "/usr/local/bin", path.join(os.homedir(), ".homebrew", "bin")] : [];
+  let fromShell = "";
+  try {
+    const { stdout } = await run(shellPath, ["-ilc", 'printf "\\n__PATH__%s__PATH__" "$PATH"'],
+                                 { encoding: "utf8", timeout: 5000 });
+    fromShell = (stdout.match(/__PATH__(.*)__PATH__/) || [])[1] || "";
+  } catch {}
+  const parts = [...fromShell.split(":"), ...(process.env.PATH || "").split(":"), ...extra];
+  const joined = [...new Set(parts.filter(Boolean))].join(":");
+  if (fromShell) cachedPath = joined;  // retry next time if the shell didn't answer
+  return joined;
+}
+
+// The Windows build bundles Python; elsewhere use the system's python3 (3.8+).
+// -I ignores PYTHON* variables and user site-packages, so a PYTHONHOME or
+// PYTHONPATH set for another Python can't break the bundled one. That makes these
+// flags stand in for PYTHONUNBUFFERED, PYTHONDONTWRITEBYTECODE (no __pycache__
+// inside the signed app) and PYTHONUTF8.
+const PY_FLAGS = ["-I", "-u", "-B", "-X", "utf8"];
+
+async function findPython(env) {
+  const names = IS_WIN ? ["python.exe", "python3.exe"] : ["python3"];
+  // The packaged app bundles Python (app/build/fetch-deps.js); a checkout uses PATH.
+  const candidates = [path.join(ROOT, "python", ...(IS_WIN ? ["python.exe"] : ["bin", "python3"]))];
+  for (const dir of env.PATH.split(path.delimiter)) {
+    // The WindowsApps "python.exe" is a stub that opens the Microsoft Store.
+    if (!dir || (IS_WIN && /\\WindowsApps\\?$/i.test(dir))) continue;
+    for (const name of names) candidates.push(path.join(dir, name));
+  }
+  for (const p of candidates) {
+    try {
+      fs.accessSync(p, fs.constants.X_OK);
+      // /usr/bin/python3 on macOS is a stub until the Command Line Tools are installed.
+      await run(p, [...PY_FLAGS, "-c", "import http.server, sys; assert sys.version_info >= (3, 8)"],
+                { timeout: 10000, env, windowsHide: true });
+      return p;
+    } catch {}
+  }
+  return null;
+}
+
+async function hasSsh(env) {
+  try { await run("ssh", ["-V"], { timeout: 5000, env, windowsHide: true }); return true; } catch { return false; }
+}
+
+const PYTHON_HELP = app.isPackaged ? "The bundled Python is missing; reinstall Frame Control."
+  : "Install Python 3.8 or later, then reopen the app.";
+const SSH_HELP = IS_WIN
+  ? "Turn on Windows' OpenSSH client: Settings → System → Optional features → Add a feature → OpenSSH Client."
+  : "Install the OpenSSH client (e.g. sudo apt install openssh-client).";
+
+function freePort() {
+  return new Promise((resolve, reject) => {
+    const s = net.createServer();
+    s.once("error", reject);
+    s.listen(0, "127.0.0.1", () => { const { port } = s.address(); s.close(() => resolve(port)); });
+  });
+}
+
+// Ready once the port answers with our Server header.
+function ping(target) {
+  return new Promise((resolve) => {
+    const req = http.get(target, { timeout: 1000 }, (res) => {
+      res.resume();
+      resolve(/^FrameControl/.test(res.headers.server || ""));
+    });
+    req.on("error", () => resolve(false));
+    req.on("timeout", () => { req.destroy(); resolve(false); });
+  });
+}
+
+async function startServer() {
+  // The version and whether this is a built app go to ui/frame_telemetry.py, which
+  // sends nothing from a source checkout.
+  const env = { ...process.env, PATH: await loginPath(), FRAME_CONTROL_APP: "1",
+                FRAME_CONTROL_VERSION: app.getVersion(), FRAME_CONTROL_LOG: LOG,
+                ...(app.isPackaged ? { FRAME_CONTROL_PACKAGED: "1" } : {}),
+                ...(fs.existsSync(TOOLS) ? { FRAME_CONTROL_TOOLS: TOOLS } : {}) };
+  python = await findPython(env);
+  if (!python) throw new Error(`Frame Control needs Python 3.8 or later. ${PYTHON_HELP}`);
+  if (!await hasSsh(env)) throw new Error(`Frame Control needs the ssh command. ${SSH_HELP}`);
+  const port = await freePort();
+  fs.mkdirSync(LOG_DIR, { recursive: true });
+  const log = fs.openSync(LOG, "a");
+  fs.writeSync(log, `\n--- ${new Date().toISOString()} ${python} ${SERVER} --port ${port}\n`);
+  // stdin stays open while the app runs; the server exits cleanly when it closes.
+  const child = spawn(python, [...PY_FLAGS, SERVER, "--port", String(port), "--exit-on-eof"],
+                      { env, stdio: ["pipe", log, log], windowsHide: true });
+  child.stdin.on("error", () => {});
+  fs.closeSync(log);
+  server = child;
+  let exited = null;
+  child.once("error", (err) => {
+    exited = err.message;
+    if (server === child) { server = null; if (!quitting && url) serverDied(err.message); }
+  });
+  child.once("exit", (code, signal) => {
+    exited = signal || code;
+    if (server !== child) return;  // replaced by Restart Server
+    server = null;
+    if (!quitting && url) serverDied(exited);
+  });
+
+  const target = `http://127.0.0.1:${port}/`;
+  for (let i = 0; i < 100; i++) {
+    if (exited !== null) throw new Error(`The server exited (${exited}). See ${LOG}.`);
+    if (await ping(target)) { url = target; serverStarted = Date.now(); return; }
+    await new Promise((r) => setTimeout(r, 100));
+  }
+  if (server === child) server = null;
+  endServer(child);
+  throw new Error(`The server didn't start within 10 seconds. See ${LOG}.`);
+}
+
+// Closing stdin lets server.py close its SSH connections and exit (the only clean
+// way on Windows); SIGTERM does the same elsewhere.
+// Resolves once it has exited (or after 20 s), so a replacement can take the server
+// lock: server.py allows one per user.
+function endServer(child) {
+  const gone = child.exitCode !== null || child.signalCode !== null ? Promise.resolve()
+    : new Promise((resolve) => child.once("exit", resolve));
+  try { child.stdin.end(); } catch {}
+  if (!IS_WIN) child.kill("SIGTERM");
+  // server.py ignores a second SIGTERM while it shuts down, so the fallback is a hard kill.
+  setTimeout(() => { if (child.exitCode === null && child.signalCode === null) child.kill("SIGKILL"); }, 12000).unref();
+  return Promise.race([gone, new Promise((resolve) => setTimeout(resolve, 20000).unref())]);
+}
+
+function stopServer() {
+  if (server) endServer(server);
+}
+
+function errorPage(message, title = "Frame Control couldn't start") {
+  const esc = (s) => s.replace(/[&<>]/g, (c) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;" }[c]));
+  const html = `<!doctype html><meta charset="utf-8"><body style="margin:0;height:100vh;display:grid;
+    place-items:center;background:${BG};color:#e6edf3;font:14px -apple-system,sans-serif">
+    <div style="max-width:560px;padding:32px;line-height:1.5"><h2>${esc(title)}</h2>
+    <p>${esc(message)}</p>
+    <p><button onclick="this.disabled = true; frameApp.restartServer()" style="font:inherit;padding:6px 16px;
+      border-radius:6px;border:1px solid #30363d;background:#21262d;color:inherit;cursor:pointer">Try Again</button></p>
+    <p style="color:#8b98a8">Frame → Restart Server does the same.</p></div>`;
+  return "data:text/html;charset=utf-8," + encodeURIComponent(html);
+}
+
+// A server that had been running starts again by itself (something stopped it: a
+// signal, a crash). One that stops again within a minute shows the error instead,
+// so a server that can't stay up doesn't restart forever.
+let serverStarted = 0;
+function serverDied(why) {
+  url = null;
+  if (!win) return;
+  if (Date.now() - serverStarted > 60000) restartServer();
+  else win.loadURL(errorPage(`Its server stopped unexpectedly (${why}). See ${LOG}.`, "Frame Control stopped"));
+}
+
+// Restarts that overlap share one: two could each start a server, and the one
+// that lost the lock would leave the app pointing at nothing.
+let restarting = null;
+function restartServer() {
+  if (!restarting) {
+    restarting = (async () => {
+      const old = server;
+      server = null;
+      url = null;
+      if (old) await endServer(old);
+      if (starting) await starting.catch(() => {});  // a start it cut short: then start afresh
+      await load();
+    })().finally(() => { restarting = null; });
+  }
+  return restarting;
+}
+
+// On macOS the page's sticky header becomes the title bar, clear of the traffic lights.
+const CHROME_CSS = IS_MAC && `
+  header { padding-left: 92px !important; -webkit-app-region: drag; user-select: none; }
+  header a, header button, header input, header select, header .chip { -webkit-app-region: no-drag; }
+`;
+
+// Restart Server can start a new load while an older one is still waiting for
+// its server; only the newest load may touch the window.
+let loadGen = 0;
+let starting = null;  // loads that overlap share one server start
+async function load() {
+  const gen = ++loadGen;
+  try {
+    if (!url) await (starting ||= startServer().finally(() => { starting = null; }));
+    if (gen === loadGen && win) { await win.loadURL(url); firstRunCheck(); }
+  } catch (e) {
+    if (gen === loadGen && win) await win.loadURL(errorPage(e.message));
+  }
+}
+
+// `ssh -G` prints the effective config. An alias nobody configured keeps its
+// own name as HostName; connect.sh always writes a HostName.
+async function aliasConfigured(env) {
+  try {
+    const { stdout } = await run("ssh", ["-G", FRAME], { encoding: "utf8", timeout: 5000, env });
+    return (stdout.match(/^hostname (.*)$/m) || [])[1] !== FRAME;
+  } catch {
+    return true;  // can't tell; don't nag
+  }
+}
+
+let setupOffered = false;
+async function firstRunCheck() {
+  if (setupOffered || !url) return;  // not on the error page, and once per launch
+  if (await aliasConfigured({ ...process.env, PATH: await loginPath() })) return;
+  if (!win || setupOffered) return;
+  setupOffered = true;
+  const { response } = await dialog.showMessageBox(win, {
+    type: "info",
+    message: "Connect to your Steam Frame",
+    detail: `There's no "${FRAME}" SSH alias yet. On the Frame, turn on Steam Settings → System → `
+          + "Enable Developer Mode, then Developer → Set User Password. Then run the setup: it finds the "
+          + "headset, creates a key, and asks for that password once in a terminal window.",
+    buttons: ["Set Up Connection…", "Later"],
+    defaultId: 0, cancelId: 1,
+  });
+  if (response === 0) setUpConnection();
+}
+
+// IPC only from our own page in our own window.
+function fromUi(e) {
+  if (!win || e.sender !== win.webContents || !url || !e.senderFrame) return false;
+  try {
+    return new URL(e.senderFrame.url).origin === new URL(url).origin;
+  } catch { return false; }
+}
+
+// The error page's Try Again button. The error page is the only data: page the window
+// shows (`url` can still be set then: the server answered but the page failed to load).
+ipcMain.handle("server:restart", (e) => {
+  if (win && e.sender === win.webContents && e.senderFrame && e.senderFrame.url.startsWith("data:")) restartServer();
+});
+ipcMain.handle("clipboard:read", (e) => fromUi(e) ? clipboard.readText() : "");
+// A PNG or JPEG (a screenshot) onto the clipboard as an image.
+ipcMain.handle("clipboard:writeImage", (e, bytes) => {
+  if (!fromUi(e) || !(bytes instanceof Uint8Array)) return false;
+  const img = nativeImage.createFromBuffer(Buffer.from(bytes));
+  if (img.isEmpty()) throw new Error("not an image");
+  clipboard.writeImage(img);
+  return true;
+});
+ipcMain.handle("connection:setup", (e) => { if (fromUi(e)) setUpConnection(); });
+ipcMain.on("keys:capture", (e, on) => { if (fromUi(e)) win.webContents.setIgnoreMenuShortcuts(on === true); });
+ipcMain.handle("update:get", (e) => fromUi(e) ? publicUpdate() : null);
+ipcMain.handle("update:check", (e) => fromUi(e) ? checkForUpdate({ manual: true }).then(publicUpdate) : null);
+ipcMain.handle("update:install", (e) => { if (fromUi(e)) installUpdate(); });
+
+// The page reports the headsets it knows (the server's Devices tab), so the Frame
+// menu can switch between them. Only plain names and ids go into the menu.
+const ALIAS_RE = /^[A-Za-z0-9][A-Za-z0-9._-]{0,63}$/;
+let devices = [];
+ipcMain.on("devices:changed", (e, list) => {
+  if (!fromUi(e) || !Array.isArray(list)) return;
+  const next = list.slice(0, 20).filter(d => d && typeof d.id === "string" && ALIAS_RE.test(d.alias || ""))
+    .map(d => ({ id: d.id.slice(0, 80), name: String(d.name || d.alias).slice(0, 60), alias: d.alias, active: !!d.active }));
+  if (JSON.stringify(next) === JSON.stringify(devices)) return;
+  devices = next;
+  buildMenu();
+});
+const activeAlias = () => (devices.find(d => d.active) || {}).alias || FRAME;
+
+// SSH through the server, so it goes to the headset and address the app is using
+// (with its own pinned identity), and refuses when there's none.
+function openSsh() {
+  if (!url) return dialog.showErrorBox("Couldn't open SSH", "Frame Control's server isn't running.");
+  const body = JSON.stringify({ what: "terminal" });
+  const req = http.request(new URL("/api/open", url), {
+    method: "POST", timeout: 15000,
+    headers: { "Content-Type": "application/json", "X-Frame-UI": "1", "Content-Length": Buffer.byteLength(body) },
+  }, (res) => {
+    let data = "";
+    res.on("data", (c) => { data += c; });
+    res.on("end", () => {
+      if (res.statusCode === 200) return;
+      let why = `HTTP ${res.statusCode}`;
+      try { why = JSON.parse(data).error || why; } catch {}
+      dialog.showErrorBox("Couldn't open SSH", why);
+    });
+  });
+  req.on("error", (e) => dialog.showErrorBox("Couldn't open SSH", e.message));
+  req.on("timeout", () => req.destroy(new Error("the server didn't answer")));
+  req.end(body);
+}
+function showDevices() {
+  if (win && url) win.webContents.executeJavaScript('location.hash = "devices"').catch(() => {});
+}
+
+ipcMain.handle("comfort:notify", (e, message) => {
+  if (!fromUi(e) || typeof message !== "string" || message.length > 500) throw new Error("Invalid notification");
+  if (!Notification.isSupported()) throw new Error("System notifications are unavailable");
+  return new Promise((resolve, reject) => {
+    const notification = new Notification({title: "Frame Control", body: message});
+    const timer = setTimeout(() => reject(new Error("Notification delivery was not confirmed. Check system notification settings.")), 5000);
+    notification.once("show", () => { clearTimeout(timer); resolve(true); });
+    notification.once("failed", (_event, error) => {
+      clearTimeout(timer);
+      reject(new Error("Notification delivery failed. Check system notification settings: " + error));
+    });
+    notification.show();
+  });
+});
+
+// frame-control://install links from websites (docs/web-install.md). They can
+// arrive before the window or server exists (macOS open-url on a cold launch),
+// so they wait here until the page asks for them. The page checks the link with
+// the server and installs nothing until the user confirms in its dialog.
+const pendingLinks = [];
+let linkPage = null;  // the webContents whose current page is listening
+
+function openInstallLink(raw) {
+  const req = parseInstallLink(raw);
+  if (!req) {
+    app.whenReady().then(() => dialog.showErrorBox("Frame Control can't use this link",
+      "Install links look like frame-control://install?manifest=https://… or frame-control://install?url=https://…"));
+    return;
+  }
+  pendingLinks.push(req);
+  if (pendingLinks.length > 5) pendingLinks.shift();  // a page opening links in a loop
+  deliverLinks();
+  if (win) { if (win.isMinimized()) win.restore(); win.focus(); }
+}
+
+function deliverLinks() {
+  if (!win || !linkPage || linkPage !== win.webContents) return;
+  while (pendingLinks.length) win.webContents.send("install-link", pendingLinks.shift());
+}
+
+ipcMain.on("install-link:ready", (e) => {
+  if (!fromUi(e)) return;
+  linkPage = e.sender;
+  deliverLinks();
+});
+
+// ---- updates (app/updater.js, docs/releasing.md) ----
+// Checked shortly after launch and every few hours; the page shows a banner and
+// the Update button calls installUpdate.
+const UPDATE_EVERY = 6 * 3600 * 1000;
+const update = { status: "idle", current: app.getVersion(), latest: null, error: null, progress: 0, how: null };
+
+function publicUpdate() {
+  const r = update.latest;
+  return { status: update.status, current: update.current, error: update.error, progress: update.progress,
+           latest: r && { version: r.version, notes: r.notes, page: r.page },
+           canInstall: !!update.how && update.how.method !== "manual", why: update.how && update.how.why };
+}
+
+function setUpdate(fields) {
+  Object.assign(update, fields);
+  if (win && linkPage === win.webContents) win.webContents.send("update:state", publicUpdate());
+}
+
+async function checkForUpdate({ manual = false } = {}) {
+  if (["checking", "downloading", "ready"].includes(update.status)) return;
+  setUpdate({ status: "checking", error: null });
+  try {
+    const latest = await updater.latestRelease();
+    const how = updater.updateMethod({ platform: process.platform, isPackaged: app.isPackaged,
+                                       execPath: process.execPath, env: process.env,
+                                       exists: fs.existsSync, writable: updater.writable });
+    if (updater.isNewer(latest.version, update.current)) {
+      setUpdate({ status: "available", latest, how });
+      if (manual) offerUpdateDialog();
+    } else {
+      setUpdate({ status: "none", latest, how });
+      if (manual) dialog.showMessageBox(win, { type: "info", message: "Frame Control is up to date",
+                                               detail: `You have ${update.current}, the newest version.` });
+    }
+  } catch (e) {
+    // A failed check: nothing to install, and never an older release kept from before.
+    setUpdate({ status: "check-failed", error: e.message, latest: null });
+    if (manual) dialog.showMessageBox(win, { type: "warning", message: "Couldn't check for updates", detail: e.message });
+  }
+}
+
+async function offerUpdateDialog() {
+  const r = update.latest;
+  const { response } = await dialog.showMessageBox(win, {
+    type: "info", message: `Frame Control ${r.version} is available`,
+    detail: `You have ${update.current}.` + (update.how.method === "manual" ? ` Download it from the release page (${update.how.why}).` : ""),
+    buttons: [update.how.method === "manual" ? "Open Release Page" : "Update and Restart", "Later"], defaultId: 0, cancelId: 1,
+  });
+  if (response === 0) installUpdate();
+}
+
+async function installUpdate() {
+  // "error" here only ever means an install failed, so trying again is safe.
+  if (update.status !== "available" && update.status !== "error") return;
+  if (!update.latest || !updater.isNewer(update.latest.version, update.current)) return;
+  if (!update.how || update.how.method === "manual") { shell.openExternal(update.latest.page); return; }
+  setUpdate({ status: "downloading", progress: 0, error: null });
+  try {
+    const start = await updater.prepare(update.latest, update.how,
+      (done, total) => { if (total) setUpdate({ progress: done / total }); }, update.current);
+    setUpdate({ status: "ready", progress: 1 });
+    start();
+    quitting = true;
+    app.quit();
+  } catch (e) {
+    setUpdate({ status: "error", error: e.message });
+  }
+}
+
+function scheduleUpdateChecks() {
+  if (process.env.FRAME_CONTROL_NO_UPDATE_CHECK === "1") return;
+  setTimeout(checkForUpdate, 8000);
+  setInterval(checkForUpdate, UPDATE_EVERY).unref();
+}
+
+function registerScheme() {
+  // A checkout runs as `electron .`, so the OS must be told the script too.
+  // (macOS takes the scheme from Info.plist, which only the built app has.)
+  if (process.defaultApp) {
+    if (process.argv.length >= 2) app.setAsDefaultProtocolClient(SCHEME, process.execPath, [path.resolve(process.argv[1])]);
+  } else {
+    app.setAsDefaultProtocolClient(SCHEME);
+  }
+}
+
+function createWindow() {
+  win = new BrowserWindow({
+    width: 1400, height: 950, minWidth: 760, minHeight: 560,
+    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, backgroundThrottling: false,
+                      preload: path.join(__dirname, "preload.js") },
+  });
+  win.once("ready-to-show", () => win.show());
+  if (CHROME_CSS) win.webContents.on("did-finish-load", () => win.webContents.insertCSS(CHROME_CSS));
+  // External links open in the default browser; the app never navigates away.
+  win.webContents.setWindowOpenHandler(({ url: target }) => {
+    if (/^https?:\/\//.test(target)) shell.openExternal(target);
+    return { action: "deny" };
+  });
+  win.webContents.on("will-navigate", (e, target) => {
+    if (!url || new URL(target).origin !== new URL(url).origin) e.preventDefault();
+  });
+  // A reload or a new page must ask for links again before it gets any.
+  win.webContents.on("did-start-loading", () => { linkPage = null; });
+  win.on("closed", () => { win = null; linkPage = null; });
+  load();
+}
+
+// Opens a terminal window (Terminal, a Linux terminal emulator or a console) via
+// ui/frame_host.py, which the server uses too: setup and power actions ask for the
+// Developer Mode password there.
+async function runInTerminal(argv) {
+  try {
+    const env = { ...process.env, PATH: await loginPath() };
+    const py = python || await findPython(env);
+    if (!py) throw new Error(`Python 3.8 or later is needed. ${PYTHON_HELP}`);
+    await run(py, [...PY_FLAGS, path.join(ROOT, "ui", "frame_host.py"), "terminal", "--", ...argv],
+              { env, timeout: 15000, windowsHide: true });
+  } catch (err) {
+    dialog.showErrorBox("Couldn't open a terminal", String((err.stderr || err.message || err)).trim());
+  }
+}
+
+// Set Up Connection for the headset in use (or another alias, from the Devices tab).
+async function setUpConnection(name = activeAlias()) {
+  if (!ALIAS_RE.test(name)) return;
+  const alias = `FRAME_ALIAS=${name}`;
+  if (IS_MAC) return runInTerminal(["env", alias, "zsh", path.join(SCRIPTS, "connect.sh")]);
+  const py = python || await findPython({ ...process.env, PATH: await loginPath() });
+  // --alias, since a new console on Windows (and some Linux terminals) doesn't get our environment.
+  runInTerminal([py || "python3", ...PY_FLAGS, path.join(ROOT, "ui", "frame_connect.py"), "--alias", name]);
+}
+
+function buildMenu() {
+  const template = [
+    ...(IS_MAC ? [{ label: app.name, submenu: [
+      { role: "about" }, { label: "Check for Updates…", click: () => checkForUpdate({ manual: true }) },
+      { type: "separator" }, { role: "services" }, { type: "separator" },
+      { role: "hide" }, { role: "hideOthers" }, { role: "unhide" }, { type: "separator" }, { role: "quit" },
+    ] }] : []),
+    { role: "fileMenu" },
+    { role: "editMenu" },
+    {
+      label: "Frame",
+      submenu: [
+        { label: "Set Up Connection…", click: () => setUpConnection() },
+        { label: IS_MAC ? "Open SSH in Terminal" : "Open SSH in a Terminal", click: openSsh },
+        { type: "separator" },
+        ...(devices.length > 1 ? [{
+          label: "Headset",
+          submenu: devices.map(d => ({ label: d.name, type: "radio", checked: d.active,
+                                       click: () => { if (win) win.webContents.send("use-device", d.id); } })),
+        }] : []),
+        { label: "Devices…", accelerator: "CmdOrCtrl+5", click: showDevices },
+        { type: "separator" },
+        { label: "Open in Browser", click: () => url && shell.openExternal(url) },
+        { label: "Restart Server", click: () => win ? restartServer() : createWindow() },
+        { label: "Show Server Log", click: () => shell.openPath(fs.existsSync(LOG) ? LOG : LOG_DIR) },
+        ...(IS_WIN ? [] : [{ label: "Reveal Helper Scripts", click: () => shell.openPath(SCRIPTS) }]),
+      ],
+    },
+    {
+      label: "View",
+      submenu: [
+        { role: "reload" }, { role: "forceReload" }, { role: "toggleDevTools" },
+        { type: "separator" },
+        { role: "resetZoom" }, { role: "zoomIn" }, { role: "zoomOut" },
+        { type: "separator" }, { role: "togglefullscreen" },
+      ],
+    },
+    ...(IS_MAC ? [{ role: "windowMenu" }] : []),
+    {
+      role: "help",
+      submenu: [
+        ...(IS_MAC ? [] : [{ label: "Check for Updates…", click: () => checkForUpdate({ manual: true }) }]),
+        { label: "Report a Problem…", click: () => {
+          if (win && url && linkPage === win.webContents) win.webContents.send("report:open");
+          else shell.openExternal("https://frame-control.pages.dev/feedback/");  // the page isn't up
+        } },
+        { label: "Release Notes", click: () => shell.openExternal(updater.RELEASES) },
+        { label: "Project on GitHub", click: () => shell.openExternal("https://github.com/saphid/steam-frame") },
+      ],
+    },
+  ];
+  Menu.setApplicationMenu(Menu.buildFromTemplate(template));
+}
+
+if (!app.requestSingleInstanceLock()) {
+  app.quit();
+} else {
+  // macOS delivers install links here, even before the app is ready.
+  app.on("open-url", (e, link) => { e.preventDefault(); openInstallLink(link); });
+  // Windows and Linux start a second instance with the link as an argument.
+  app.on("second-instance", (_e, argv) => {
+    if (win) { if (win.isMinimized()) win.restore(); win.focus(); }
+    const link = linkFromArgv(argv);
+    if (link) openInstallLink(link);
+  });
+  const firstLink = IS_MAC ? null : linkFromArgv(process.argv);
+  if (firstLink) openInstallLink(firstLink);
+  app.whenReady().then(() => {
+    registerScheme();
+    buildMenu();
+    createWindow();
+    scheduleUpdateChecks();
+  });
+  app.on("activate", () => { if (!win) createWindow(); });
+  app.on("window-all-closed", () => app.quit());
+  app.on("before-quit", () => { quitting = true; stopServer(); });
+  process.on("exit", stopServer);
+}

app/package.json

@@ -0,0 +1,211 @@
+{
+  "name": "frame-control",
+  "productName": "Frame Control",
+  "version": "0.4.1",
+  "description": "Desktop app for managing a Valve Steam Frame over SSH",
+  "private": true,
+  "main": "main.js",
+  "license": "MIT",
+  "scripts": {
+    "start": "env -u ELECTRON_RUN_AS_NODE electron .",
+    "icon": "env -u ELECTRON_RUN_AS_NODE electron build/make-icon.js",
+    "dist": "sh ../mac/frame-mac-view/build.sh && node build/fetch-deps.js mac arm64 && electron-builder --mac --arm64 --publish never",
+    "dist:dir": "sh ../mac/frame-mac-view/build.sh && node build/fetch-deps.js mac arm64 && electron-builder --mac --arm64 --dir",
+    "dist:linux": "node build/fetch-deps.js linux x64 arm64 && electron-builder --linux --x64 --arm64 --publish never",
+    "dist:win": "node build/fetch-deps.js win x64 && electron-builder --win --x64 --publish never"
+  },
+  "devDependencies": {
+    "electron": "^44.4.5",
+    "electron-builder": "^26.15.3"
+  },
+  "build": {
+    "appId": "com.saphid.frame-control",
+    "productName": "Frame Control",
+    "protocols": [
+      {
+        "name": "Frame Control install link",
+        "schemes": [
+          "frame-control"
+        ]
+      }
+    ],
+    "directories": {
+      "output": "dist",
+      "buildResources": "build"
+    },
+    "files": [
+      "main.js",
+      "preload.js",
+      "install-link.js",
+      "updater.js",
+      "package.json",
+      "build/icon.png"
+    ],
+    "extraResources": [
+      {
+        "from": "../ui",
+        "to": "ui",
+        "filter": [
+          "*.py",
+          "*.html",
+          "*.js",
+          "telemetry.json"
+        ]
+      },
+      {
+        "from": "../ui/apk_sources",
+        "to": "ui/apk_sources",
+        "filter": [
+          "*.py",
+          "*.json"
+        ]
+      },
+      {
+        "from": "../scripts",
+        "to": "scripts",
+        "filter": [
+          "*.sh"
+        ]
+      },
+      {
+        "from": "../frame/android",
+        "to": "frame/android",
+        "filter": [
+          "*.sh",
+          "*.py",
+          "*.js"
+        ]
+      },
+      {
+        "from": "../frame/openxr-compat",
+        "to": "frame/openxr-compat",
+        "filter": [
+          "XrApiLayer_FRAME_compat.json",
+          "prebuilt/**/*.so"
+        ]
+      },
+      {
+        "from": "../frame/devkit-utils",
+        "to": "frame/devkit-utils",
+        "filter": [
+          "**/*",
+          "!**/__pycache__/**"
+        ]
+      },
+      {
+        "from": "../frame/kdeconnect",
+        "to": "frame/kdeconnect",
+        "filter": [
+          "packages.json",
+          "NOTICE.md",
+          "LICENSES/**/*",
+          "packages/*.pkg.tar.zst"
+        ]
+      },
+      {
+        "from": "../apk-catalog",
+        "to": "apk-catalog",
+        "filter": [
+          "*.py",
+          "pins.json",
+          "site/apps.js"
+        ]
+      },
+      {
+        "from": "build/deps/${os}-${arch}/python",
+        "to": "python",
+        "filter": [
+          "**/*"
+        ]
+      },
+      {
+        "from": "build/deps/${os}-${arch}/tools",
+        "to": "tools",
+        "filter": [
+          "**/*"
+        ]
+      },
+      {
+        "from": "../THIRD_PARTY_NOTICES.md",
+        "to": "THIRD_PARTY_NOTICES.md"
+      },
+      {
+        "from": "../LICENSE",
+        "to": "LICENSE"
+      }
+    ],
+    "mac": {
+      "category": "public.app-category.utilities",
+      "icon": "build/icon.icns",
+      "identity": "-",
+      "hardenedRuntime": false,
+      "target": [
+        "dmg",
+        "zip"
+      ],
+      "extraResources": [
+        {
+          "from": "../mac/bin",
+          "to": "mac/bin",
+          "filter": [
+            "frame-mac-view"
+          ]
+        }
+      ],
+      "extendInfo": {
+        "NSAppleEventsUsageDescription": "Frame Control opens Terminal for SSH sessions and for power actions that need the Developer Mode password.",
+        "NSLocalNetworkUsageDescription": "Frame Control connects to your Steam Frame over SSH on the local network.",
+        "NSScreenCaptureUsageDescription": "Frame Control shows your Mac's windows and screens inside the Steam Frame when you ask it to."
+      },
+      "artifactName": "Frame-Control-mac-${arch}.${ext}"
+    },
+    "dmg": {
+      "title": "Frame Control ${version}"
+    },
+    "electronFuses": {
+      "runAsNode": false,
+      "enableNodeOptionsEnvironmentVariable": false,
+      "enableNodeCliInspectArguments": false
+    },
+    "linux": {
+      "target": [
+        "AppImage",
+        "deb"
+      ],
+      "category": "Utility",
+      "icon": "build/icon.png",
+      "executableName": "frame-control",
+      "synopsis": "Manage a Valve Steam Frame over SSH",
+      "artifactName": "Frame-Control-linux-${arch}.${ext}",
+      "desktop": {
+        "entry": {
+          "StartupWMClass": "frame-control"
+        }
+      }
+    },
+    "deb": {
+      "depends": [
+        "openssh-client"
+      ]
+    },
+    "win": {
+      "target": [
+        "nsis",
+        "zip"
+      ],
+      "icon": "build/icon.png",
+      "artifactName": "Frame-Control-win-${arch}.${ext}"
+    },
+    "nsis": {
+      "oneClick": false,
+      "perMachine": false,
+      "allowToChangeInstallationDirectory": true,
+      "artifactName": "Frame-Control-Setup-${arch}.${ext}"
+    }
+  },
+  "homepage": "https://github.com/saphid/steam-frame",
+  "author": {
+    "name": "saphid",
+    "email": "4596216+saphid@users.noreply.github.com"
+  }
+}

app/preload.js

@@ -0,0 +1,47 @@
+// Lets the page read this computer's clipboard through Electron, so sending it
+// to the Frame needs no pbpaste, PowerShell, xclip or wl-clipboard. Also tells
+// the page where a dropped file or folder lives, so a folder can be sideloaded
+// as a title without zipping it (the local server reads it from there).
+// It can put a screenshot on the clipboard as an image, open Set Up Connection when
+// the headset can't be reached, and keeps the Frame menu's list of headsets up to date.
+// It also receives frame-control://install links (docs/web-install.md): only
+// what the link asked for, never an install; the page asks the user first.
+// And it passes update state both ways: see app/updater.js.
+const { contextBridge, ipcRenderer, webUtils } = require("electron");
+
+contextBridge.exposeInMainWorld("frameApp", {
+  notify: (message, request) => ipcRenderer.invoke("comfort:notify", message, request),
+  readClipboard: () => ipcRenderer.invoke("clipboard:read"),
+  writeImage: (bytes) => ipcRenderer.invoke("clipboard:writeImage", bytes),
+  setUpConnection: () => ipcRenderer.invoke("connection:setup"),
+  restartServer: () => ipcRenderer.invoke("server:restart"),  // the "couldn't start" page's Try Again
+  // The Frame menu's headset switcher: the page tells it the headsets, and hears picks.
+  devicesChanged: (list) => ipcRenderer.send("devices:changed", list),
+  onUseDevice: (cb) => {
+    ipcRenderer.removeAllListeners("use-device");
+    ipcRenderer.on("use-device", (_e, id) => cb(String(id)));
+  },
+  // While the keyboard-and-trackpad panel holds the keyboard, ⌘W, ⌘R and the rest go to the Frame.
+  captureKeys: (on) => ipcRenderer.send("keys:capture", !!on),
+  pathForFile: (file) => { try { return webUtils.getPathForFile(file) || ""; } catch { return ""; } },
+  // Updates (app/updater.js): the page shows a banner and an Update button.
+  update: {
+    get: () => ipcRenderer.invoke("update:get"),
+    check: () => ipcRenderer.invoke("update:check"),
+    install: () => ipcRenderer.invoke("update:install"),
+    onState: (cb) => {
+      ipcRenderer.removeAllListeners("update:state");
+      ipcRenderer.on("update:state", (_e, s) => cb(s));
+    },
+  },
+  // Help → Report a Problem… opens the page's report dialog (ui/frame_report.py).
+  onReportProblem: (cb) => {
+    ipcRenderer.removeAllListeners("report:open");
+    ipcRenderer.on("report:open", () => cb());
+  },
+  onInstallLink: (cb) => {
+    ipcRenderer.removeAllListeners("install-link");
+    ipcRenderer.on("install-link", (_e, req) => cb({ kind: req.kind, target: req.target }));
+    ipcRenderer.send("install-link:ready");
+  },
+});

app/test/updater.test.js

@@ -0,0 +1,59 @@
+// Run: node --test app/test/
+const test = require("node:test");
+const assert = require("node:assert");
+const { isNewer, assetName, updateMethod, macBundle } = require("../updater");
+
+test("versions compare numerically, and a release beats its pre-releases", () => {
+  assert.ok(isNewer("0.3.10", "0.3.9"));
+  assert.ok(isNewer("v1.0.0", "0.9.9"));
+  assert.ok(!isNewer("0.3.1", "0.3.1"));
+  assert.ok(!isNewer("0.3.0", "0.3.1"));
+  assert.ok(isNewer("1.0.0", "1.0.0-beta.1"));
+  assert.ok(!isNewer("1.0.0-beta.1", "1.0.0"));
+  assert.ok(!isNewer("garbage", "0.1.0"));
+});
+
+test("asset names match what electron-builder publishes", () => {
+  assert.strictEqual(assetName("darwin", "arm64", "mac-zip"), "Frame-Control-mac-arm64.zip");
+  assert.strictEqual(assetName("win32", "x64", "nsis"), "Frame-Control-Setup-x64.exe");
+  assert.strictEqual(assetName("linux", "x64", "appimage"), "Frame-Control-linux-x86_64.AppImage");
+  assert.strictEqual(assetName("linux", "arm64", "appimage"), "Frame-Control-linux-arm64.AppImage");
+});
+
+const base = { isPackaged: true, env: {}, exists: () => false, writable: () => true };
+
+test("macOS updates in place only from a writable, non-translocated location", () => {
+  const exe = "/Applications/Frame Control.app/Contents/MacOS/Frame Control";
+  assert.strictEqual(macBundle(exe), "/Applications/Frame Control.app");
+  assert.deepStrictEqual(updateMethod({ ...base, platform: "darwin", execPath: exe }),
+                         { method: "mac-zip", bundle: "/Applications/Frame Control.app" });
+  const dmg = "/Volumes/Frame Control 0.3.1/Frame Control.app/Contents/MacOS/Frame Control";
+  assert.strictEqual(updateMethod({ ...base, platform: "darwin", execPath: dmg }).method, "manual");
+  const trans = "/private/var/folders/x/AppTranslocation/ABC/d/Frame Control.app/Contents/MacOS/Frame Control";
+  assert.strictEqual(updateMethod({ ...base, platform: "darwin", execPath: trans }).method, "manual");
+  assert.strictEqual(updateMethod({ ...base, platform: "darwin", execPath: exe, writable: () => false }).method, "manual");
+});
+
+test("Windows needs the installer's copy; Linux needs an AppImage", () => {
+  const exe = "C:\\Users\\a\\AppData\\Local\\Programs\\Frame Control\\Frame Control.exe";
+  assert.strictEqual(updateMethod({ ...base, platform: "win32", execPath: exe, exists: () => true }).method, "nsis");
+  assert.strictEqual(updateMethod({ ...base, platform: "win32", execPath: exe }).method, "manual");
+  assert.strictEqual(updateMethod({ ...base, platform: "linux", execPath: "/opt/x", env: { APPIMAGE: "/home/a/F.AppImage" } }).method,
+                     "appimage");
+  assert.strictEqual(updateMethod({ ...base, platform: "linux", execPath: "/opt/Frame Control/frame-control" }).method, "manual");
+  assert.strictEqual(updateMethod({ ...base, isPackaged: false, platform: "darwin", execPath: "x" }).method, "manual");
+});
+
+test("update.json assets always download from this repository's release", () => {
+  const r = require("../updater").fromManifest({ version: "0.4.0", notes: "n", assets: [
+    { name: "Frame-Control-mac-arm64.zip", url: "https://evil.example/x.zip", digest: "sha256:" + "a".repeat(64) }] });
+  assert.strictEqual(r.assets[0].url, "https://github.com/saphid/frame-control/releases/download/v0.4.0/Frame-Control-mac-arm64.zip");
+  assert.throws(() => require("../updater").fromManifest({ version: "nope", assets: [] }));
+});
+
+test("prepare refuses a release that isn't newer (no downgrades)", async () => {
+  const { prepare } = require("../updater");
+  const release = { version: "0.3.1", assets: [] };
+  await assert.rejects(prepare(release, { method: "appimage", appImage: "/nonexistent/x" }, null, "0.4.0"), /isn't newer/);
+  await assert.rejects(prepare(release, { method: "appimage", appImage: "/nonexistent/x" }, null, "0.3.1"), /isn't newer/);
+});

app/updater.js

@@ -0,0 +1,250 @@
+// Update checks and self-update for the desktop app (docs/releasing.md).
+//
+// The newest version is GitHub's "latest" release of saphid/frame-control. Drafts
+// and pre-releases never count, so a build reaches people only when the
+// maintainer publishes it after testing (scripts/publish-release.sh). That
+// script attaches update.json (version, notes, each asset's SHA-256), read
+// through github.com's latest/download link: the REST API allows only 60
+// unauthenticated requests an hour per IP address, shared by everyone behind
+// the same router, so it's only the fallback.
+//
+// Every download is checked against the SHA-256 digest GitHub records for the
+// asset before anything is replaced. How the update is applied:
+//   macOS     the .zip: unpacked next to the running app, swapped in by a small
+//             script once the app has quit, then reopened.
+//   Windows   the NSIS installer, run silently over the current install; it
+//             reopens the app. A copy unpacked from the .zip is updated by hand.
+//   Linux     the AppImage replaces itself; .deb installs are updated by hand.
+// When the app can't update itself it opens the release page instead.
+const { execFile, spawn } = require("child_process");
+const crypto = require("crypto");
+const fs = require("fs");
+const https = require("https");
+const os = require("os");
+const path = require("path");
+
+const REPO = "saphid/frame-control";  // renamed from saphid/steam-frame; GitHub redirects the old name
+const LATEST = `https://api.github.com/repos/${REPO}/releases/latest`;
+const MANIFEST = `https://github.com/${REPO}/releases/latest/download/update.json`;
+const RELEASES = `https://github.com/${REPO}/releases`;
+
+// "0.3.1" or "v0.3.1" -> [0, 3, 1]; pre-release suffixes sort before the release.
+function parseVersion(v) {
+  const m = String(v || "").trim().replace(/^v/i, "").match(/^(\d+)\.(\d+)\.(\d+)(?:-([0-9A-Za-z.-]+))?$/);
+  return m ? { nums: [+m[1], +m[2], +m[3]], pre: m[4] || null } : null;
+}
+
+function isNewer(candidate, current) {
+  const a = parseVersion(candidate), b = parseVersion(current);
+  if (!a || !b) return false;
+  for (let i = 0; i < 3; i++) if (a.nums[i] !== b.nums[i]) return a.nums[i] > b.nums[i];
+  if (a.pre === b.pre) return false;
+  if (!a.pre) return true;   // 1.0.0 is newer than 1.0.0-beta
+  if (!b.pre) return false;
+  return a.pre > b.pre;
+}
+
+// The asset this copy of the app updates from, by the names electron-builder gives them.
+function assetName(platform, arch, method) {
+  if (method === "mac-zip") return `Frame-Control-mac-${arch}.zip`;
+  if (method === "nsis") return `Frame-Control-Setup-${arch}.exe`;
+  if (method === "appimage") return `Frame-Control-linux-${arch === "x64" ? "x86_64" : arch}.AppImage`;
+  return null;
+}
+
+// How this copy can update itself: mac-zip, nsis, appimage, or manual (with why).
+function updateMethod({ platform, isPackaged, execPath, env, exists, writable }) {
+  if (!isPackaged) return { method: "manual", why: "running from a source checkout" };
+  if (platform === "darwin") {
+    const bundle = macBundle(execPath);
+    if (!bundle) return { method: "manual", why: "can't find the app bundle" };
+    if (bundle.includes("/AppTranslocation/") || bundle.startsWith("/Volumes/")) {
+      return { method: "manual", why: "move Frame Control to Applications first" };
+    }
+    if (!writable(path.dirname(bundle))) return { method: "manual", why: `${path.dirname(bundle)} isn't writable` };
+    return { method: "mac-zip", bundle };
+  }
+  if (platform === "win32") {
+    // electron-builder's NSIS install puts its uninstaller next to the app.
+    const dir = path.dirname(execPath);
+    if (exists(path.join(dir, "Uninstall Frame Control.exe"))) return { method: "nsis" };
+    return { method: "manual", why: "not installed with the installer" };
+  }
+  if (platform === "linux" && env.APPIMAGE) {
+    if (!writable(path.dirname(env.APPIMAGE))) return { method: "manual", why: "the AppImage's folder isn't writable" };
+    return { method: "appimage", appImage: env.APPIMAGE };
+  }
+  return { method: "manual", why: "installed from a package" };
+}
+
+function macBundle(execPath) {
+  const i = execPath.indexOf(".app/Contents/MacOS/");
+  return i < 0 ? null : execPath.slice(0, i + 4);
+}
+
+function get(url, { headers = {}, timeout = 20000, redirects = 5 } = {}) {
+  return new Promise((resolve, reject) => {
+    const req = https.get(url, { headers: { "user-agent": "FrameControl-updater", ...headers }, timeout }, (res) => {
+      if ([301, 302, 303, 307, 308].includes(res.statusCode) && res.headers.location && redirects > 0) {
+        res.resume();
+        const next = new URL(res.headers.location, url);
+        if (next.protocol !== "https:") return reject(new Error("refusing a non-HTTPS redirect"));
+        return resolve(get(next.href, { headers, timeout, redirects: redirects - 1 }));
+      }
+      if (res.statusCode !== 200) { res.resume(); return reject(new Error(`HTTP ${res.statusCode} from ${new URL(url).host}`)); }
+      resolve(res);
+    });
+    req.on("timeout", () => req.destroy(new Error("timed out")));
+    req.on("error", reject);
+  });
+}
+
+async function getJson(url, headers) {
+  const res = await get(url, { headers });
+  let body = "";
+  for await (const chunk of res) body += chunk;
+  return JSON.parse(body);
+}
+
+// update.json and the API's release both become { version, notes, page, assets }.
+function fromManifest(m) {
+  if (!parseVersion(m.version) || !Array.isArray(m.assets)) throw new Error("update.json is malformed");
+  const base = `https://github.com/${REPO}/releases/download/v${String(m.version).replace(/^v/i, "")}/`;
+  return { version: String(m.version).replace(/^v/i, ""), notes: String(m.notes || "").slice(0, 4000),
+           page: m.page || RELEASES,
+           // Assets always come from this repository's release, whatever the manifest says.
+           assets: m.assets.map((a) => ({ name: String(a.name), url: base + encodeURIComponent(String(a.name)),
+                                          size: a.size, digest: a.digest || null })) };
+}
+
+function fromApi(r) {
+  if (r.draft || r.prerelease) throw new Error("GitHub returned an unpublished release");
+  return { version: String(r.tag_name || "").replace(/^v/i, ""), notes: String(r.body || "").slice(0, 4000),
+           page: r.html_url || RELEASES,
+           assets: (r.assets || []).map((a) => ({ name: a.name, url: a.browser_download_url, size: a.size,
+                                                 digest: a.digest || null })) };
+}
+
+async function latestRelease() {
+  try {
+    return fromManifest(await getJson(MANIFEST));
+  } catch (e) {
+    if (!/HTTP 404/.test(e.message)) throw e;  // releases before update.json existed
+  }
+  return fromApi(await getJson(LATEST, { accept: "application/vnd.github+json" }));
+}
+
+async function download(asset, dest, onProgress) {
+  const m = /^sha256:([0-9a-f]{64})$/.exec(asset.digest || "");
+  if (!m) throw new Error(`GitHub has no SHA-256 for ${asset.name}, so it can't be checked`);
+  const res = await get(asset.url, { timeout: 60000 });
+  const total = +res.headers["content-length"] || asset.size || 0;
+  const hash = crypto.createHash("sha256");
+  // "wx": a new file only, never through an existing file or symlink at that path.
+  const out = fs.createWriteStream(dest, { mode: 0o755, flags: "wx" });
+  let done = 0;
+  await new Promise((resolve, reject) => {
+    res.on("data", (chunk) => { hash.update(chunk); done += chunk.length; onProgress && onProgress(done, total); });
+    res.on("error", reject);
+    out.on("error", reject);
+    out.on("finish", resolve);
+    res.pipe(out);
+  });
+  if (hash.digest("hex") !== m[1]) {
+    fs.rmSync(dest, { force: true });
+    throw new Error(`${asset.name} didn't match its SHA-256; nothing was changed`);
+  }
+}
+
+const run = (cmd, args) => new Promise((resolve, reject) =>
+  execFile(cmd, args, { timeout: 120000 }, (err, stdout, stderr) => err ? reject(new Error((stderr || err.message).trim())) : resolve(stdout)));
+
+// Waits for this process to exit, swaps the new bundle in (putting the old one
+// back if that fails), and reopens the app.
+const MAC_SWAP = `set -u
+pid="$1"; app="$2"; new="$3"; stage="$4"
+while kill -0 "$pid" 2>/dev/null; do sleep 0.2; done
+old="$stage/old.app"
+if mv "$app" "$old"; then
+  if mv "$new" "$app"; then rm -rf "$old"; else mv "$old" "$app"; fi
+fi
+xattr -dr com.apple.quarantine "$app" 2>/dev/null
+rm -rf "$stage"
+open "$app"
+`;
+
+async function applyMac(release, bundle, onProgress) {
+  const asset = release.assets.find((a) => a.name === assetName("darwin", process.arch, "mac-zip"));
+  if (!asset) throw new Error(`the release has no ${assetName("darwin", process.arch, "mac-zip")}`);
+  // Staged beside the app, so the final move stays on one volume.
+  const stage = fs.mkdtempSync(path.join(path.dirname(bundle), ".frame-control-update-"));
+  try {
+    const zip = path.join(stage, asset.name);
+    await download(asset, zip, onProgress);
+    await run("/usr/bin/ditto", ["-x", "-k", zip, stage]);
+    fs.rmSync(zip, { force: true });
+    const name = fs.readdirSync(stage).find((n) => n.endsWith(".app"));
+    if (!name) throw new Error("the download has no app in it");
+    const fresh = path.join(stage, name);
+    const version = (await run("/usr/bin/plutil", ["-extract", "CFBundleShortVersionString", "raw",
+                                                   path.join(fresh, "Contents", "Info.plist")])).trim();
+    if (version !== release.version) throw new Error(`the download is version ${version}, not ${release.version}`);
+    const script = path.join(stage, "swap.sh");
+    fs.writeFileSync(script, MAC_SWAP);
+    return () => spawn("/bin/sh", [script, String(process.pid), bundle, fresh, stage],
+                       { detached: true, stdio: "ignore" }).unref();
+  } catch (e) {
+    fs.rmSync(stage, { recursive: true, force: true });
+    throw e;
+  }
+}
+
+async function applyNsis(release, onProgress) {
+  const asset = release.assets.find((a) => a.name === assetName("win32", process.arch, "nsis"));
+  if (!asset) throw new Error(`the release has no ${assetName("win32", process.arch, "nsis")}`);
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "frame-control-update-"));
+  const exe = path.join(dir, asset.name);
+  await download(asset, exe, onProgress);
+  // /S: silent, into the existing install. --force-run: open the app afterwards.
+  return () => spawn(exe, ["--updated", "/S", "--force-run"], { detached: true, stdio: "ignore" }).unref();
+}
+
+async function applyAppImage(release, appImage, onProgress) {
+  const asset = release.assets.find((a) => a.name === assetName("linux", process.arch, "appimage"));
+  if (!asset) throw new Error(`the release has no ${assetName("linux", process.arch, "appimage")}`);
+  // A private folder beside the AppImage, so the final rename stays on one filesystem.
+  const stage = fs.mkdtempSync(path.join(path.dirname(appImage), ".frame-control-update-"));
+  try {
+    const next = path.join(stage, asset.name);
+    await download(asset, next, onProgress);
+    fs.chmodSync(next, 0o755);
+    fs.renameSync(next, appImage);  // the running copy keeps its open file
+  } finally {
+    fs.rmSync(stage, { recursive: true, force: true });
+  }
+  // Without FUSE the AppImage runs extracted (--appimage-extract-and-run, which isn't passed
+  // on to the app); a FUSE mount lives under /tmp/.mount_*. Keep the same mode on restart.
+  const extracted = process.env.APPIMAGE_EXTRACT_AND_RUN === "1" || !process.execPath.includes("/.mount_");
+  const env = { ...process.env, APPIMAGE: appImage, ...(extracted ? { APPIMAGE_EXTRACT_AND_RUN: "1" } : {}) };
+  // Started only once this process has exited, or the new copy would lose the single-instance lock.
+  return () => spawn("/bin/sh", ["-c", 'while kill -0 "$1" 2>/dev/null; do sleep 0.2; done; exec "$2"',
+                                 "sh", String(process.pid), appImage], { detached: true, stdio: "ignore", env }).unref();
+}
+
+// Downloads and prepares the update; returns a function that starts the swap,
+// to be called just before the app quits.
+async function prepare(release, how, onProgress, current) {
+  if (!isNewer(release.version, current)) throw new Error(`${release.version} isn't newer than ${current}`);
+  if (how.method === "mac-zip") return applyMac(release, how.bundle, onProgress);
+  if (how.method === "nsis") return applyNsis(release, onProgress);
+  if (how.method === "appimage") return applyAppImage(release, how.appImage, onProgress);
+  throw new Error(how.why || "this copy can't update itself");
+}
+
+function writable(dir) {
+  try { fs.accessSync(dir, fs.constants.W_OK); return true; } catch { return false; }
+}
+
+module.exports = { REPO, RELEASES, parseVersion, isNewer, assetName, updateMethod, macBundle, latestRelease,
+                   fromManifest, fromApi,
+                   download, prepare, writable };

bench/pages/present.html

@@ -0,0 +1,24 @@
+<!doctype html>
+<!-- Control experiment, run on the Frame itself: how often does Chromium on
+     gamescope put a canvas animation on screen, with no network or decoding
+     involved? Draws every animation frame for ?s= seconds and writes the
+     frame-gap histogram per second into the title, where xprop can read it. -->
+<html><head><meta charset="utf-8"><title>fmv-present</title></head>
+<body style="margin:0;background:#000"><canvas id="c" width="1280" height="720" style="width:100%;height:100%"></canvas>
+<script>
+const q = new URLSearchParams(location.search), secs = +q.get("s") || 15, tag = q.get("tag") || "";
+const ctx = document.getElementById("c").getContext("2d", { alpha: false, desynchronized: true });
+const perSec = []; let t0 = 0, last = 0, n = 0, gaps = [];
+function frame(t) {
+  if (!t0) t0 = last = t;
+  ctx.fillStyle = "#123"; ctx.fillRect(0, 0, 1280, 720);
+  ctx.fillStyle = "#fff"; ctx.fillRect((n * 21) % 1280, 0, 20, 720); n++;
+  const s = Math.floor((t - t0) / 1000);
+  (perSec[s] = perSec[s] || []).push(t - last); last = t;
+  if (t - t0 < secs * 1000) return requestAnimationFrame(frame);
+  const out = perSec.map(g => g.length).join(",");
+  document.title = `[${tag}] done fps/s=${out}`;
+}
+document.title = `[${tag}] running`;
+requestAnimationFrame(frame);
+</script></body></html>

bench/pages/scroll.html

@@ -0,0 +1,32 @@
+<!doctype html>
+<!-- Benchmark content: a long page of text that scrolls itself at a steady
+     speed, so every frame changes the way reading a real page does. -->
+<html lang="en"><head><meta charset="utf-8"><title>fmv-bench scroll</title>
+<style>
+  body { font: 17px/1.55 -apple-system, "Helvetica Neue", sans-serif; margin: 0 auto; max-width: 900px; padding: 24px; color: #1d1d1f; background: #fff; }
+  h2 { font-size: 22px; margin: 28px 0 8px; } code { background: #f2f2f5; padding: 1px 4px; border-radius: 3px; }
+</style></head><body><div id="doc"></div>
+<script>
+const words = "latency frame panel stream encoder decoder network display pixel window capture budget quality motion text sharp adaptive controller queue socket clock".split(" ");
+let seed = 7; const rnd = () => (seed = (seed * 16807) % 2147483647) / 2147483647;
+let html = "";
+for (let s = 0; s < 120; s++) {
+  html += `<h2>Section ${s + 1}: ${words[s % words.length]} and ${words[(s * 7) % words.length]}</h2>`;
+  for (let p = 0; p < 4; p++) {
+    let para = [];
+    for (let w = 0; w < 70; w++) para.push(rnd() < 0.05 ? `<code>${words[Math.floor(rnd() * words.length)]}()</code>` : words[Math.floor(rnd() * words.length)]);
+    html += `<p>${para.join(" ")}.</p>`;
+  }
+}
+document.getElementById("doc").innerHTML = html;
+// 240 points a second, whatever the display's refresh rate.
+// The title carries the page's own frame rate, so the source's rate is known.
+let last = performance.now(), frames = 0, since = last;
+function step(now) {
+  const dy = (now - last) * 0.24; last = now;
+  if (++frames && now - since >= 1000) { document.title = `fmv-bench scroll ${frames} fps`; frames = 0; since = now; }
+  if (window.scrollY + innerHeight >= document.body.scrollHeight - 2) window.scrollTo(0, 0); else window.scrollBy(0, dy);
+  requestAnimationFrame(step);
+}
+requestAnimationFrame(step);
+</script></body></html>

bench/pages/type.html

@@ -0,0 +1,9 @@
+<!doctype html>
+<!-- Benchmark content: a plain text editor, focused, for typing tests. -->
+<html lang="en"><head><meta charset="utf-8"><title>fmv-bench type</title>
+<style>
+  html, body { margin: 0; height: 100%; background: #fff; }
+  textarea { box-sizing: border-box; width: 100%; height: 100%; border: 0; padding: 20px; outline: none; resize: none;
+             font: 20px/1.5 ui-monospace, Menlo, monospace; color: #111; caret-color: transparent; }  /* a blinking caret would pass for a reply to a key */
+</style></head><body><textarea id="t" autofocus spellcheck="false"></textarea>
+<script>document.getElementById("t").focus();</script></body></html>

bench/results/2026-09-28-1d05f57-usb1.json

@@ -0,0 +1,677 @@
+{
+ "label": "usb1",
+ "date": "2026-09-28T21:16:03",
+ "commit": "1d05f57",
+ "config": {
+  "quality": "balanced",
+  "mode": "separate",
+  "net": "none",
+  "delay_ms": 0,
+  "buffer_ms": 250,
+  "host": "10.86.200.233",
+  "ssh_opts": [],
+  "encoder": "",
+  "duration_s": 15.0,
+  "browser_flags": []
+ },
+ "frame_build": "20260925.6191901",
+ "mac": "26.5.2",
+ "headset": "",
+ "scenarios": [
+  {
+   "scenario": "test",
+   "frames_sent": 911,
+   "frames_drawn": 911,
+   "frames_shown": 610,
+   "duration_s": 15.2,
+   "stages_ms": {
+    "capture": {
+     "p50": 0.0,
+     "p95": 0.0,
+     "p99": 0.0,
+     "n": 911
+    },
+    "queue": {
+     "p50": 0.0,
+     "p95": 0.1,
+     "p99": 0.1,
+     "n": 911
+    },
+    "encode": {
+     "p50": 4.4,
+     "p95": 5.0,
+     "p99": 5.2,
+     "n": 911
+    },
+    "socket": {
+     "p50": 0.1,
+     "p95": 0.2,
+     "p99": 0.2,
+     "n": 911
+    },
+    "network": {
+     "p50": 1.1,
+     "p95": 1.6,
+     "p99": 2.1,
+     "n": 911
+    },
+    "decode": {
+     "p50": 1.2,
+     "p95": 2.6,
+     "p99": 3.9,
+     "n": 911
+    },
+    "draw": {
+     "p50": 0.4,
+     "p95": 0.9,
+     "p99": 1.5,
+     "n": 911
+    },
+    "present": {
+     "p50": 5.8,
+     "p95": 13.6,
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+ ]
+}

bench/results/2026-09-28-1d05f57-usb2.json

@@ -0,0 +1,690 @@
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+   "src": "separate:8187"
+  }
+ ]
+}

bench/results/2026-09-28-1d05f57-wifi1.json

@@ -0,0 +1,682 @@
+{
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+     "t": 1.09,
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+    }
+   ],
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+   "show_s": 1.25,
+   "panel": "valve.steam.desktopgame.2001195625",
+   "src": "separate:8050"
+  }
+ ]
+}

bench/results/2026-09-28-1d05f57-wifi2.json

@@ -0,0 +1,682 @@
+{
+ "label": "wifi2",
+ "date": "2026-09-28T21:18:40",
+ "commit": "1d05f57",
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+}

bench/results/2026-09-28-a3c6e5c-dirty-adapt-clean.json

@@ -0,0 +1,984 @@
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+     "fps": 30,
+     "mbps": 5.09,
+     "content_p50": 25.2,
+     "content_p95": 39.6,
+     "bitrate": 5992063,
+     "tier": 2,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 5,
+     "fps": 31,
+     "mbps": 7.29,
+     "content_p50": 29.1,
+     "content_p95": 53.5,
+     "bitrate": 5526067,
+     "tier": 2,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 6,
+     "fps": 35,
+     "mbps": 4.58,
+     "content_p50": 25.3,
+     "content_p95": 32.4,
+     "bitrate": 6018152,
+     "tier": 1,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 7,
+     "fps": 46,
+     "mbps": 7.12,
+     "content_p50": 25.1,
+     "content_p95": 34.3,
+     "bitrate": 8412933,
+     "tier": 1,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 8,
+     "fps": 46,
+     "mbps": 8.25,
+     "content_p50": 27.1,
+     "content_p95": 40.3,
+     "bitrate": 10760191,
+     "tier": 1,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 9,
+     "fps": 47,
+     "mbps": 9.3,
+     "content_p50": 27.8,
+     "content_p95": 41.2,
+     "bitrate": 13717060,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 10,
+     "fps": 55,
+     "mbps": 8.98,
+     "content_p50": 16.5,
+     "content_p95": 21.7,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 11,
+     "fps": 51,
+     "mbps": 9.32,
+     "content_p50": 18.6,
+     "content_p95": 35.4,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 12,
+     "fps": 56,
+     "mbps": 9.53,
+     "content_p50": 15.4,
+     "content_p95": 26.2,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 13,
+     "fps": 55,
+     "mbps": 8.46,
+     "content_p50": 18.6,
+     "content_p95": 23.2,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 14,
+     "fps": 54,
+     "mbps": 9.82,
+     "content_p50": 15.9,
+     "content_p95": 28.4,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 15,
+     "fps": 54,
+     "mbps": 11.11,
+     "content_p50": 15.5,
+     "content_p95": 26.1,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 16,
+     "fps": 54,
+     "mbps": 9.79,
+     "content_p50": 17.4,
+     "content_p95": 25.3,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 17,
+     "fps": 57,
+     "mbps": 9.3,
+     "content_p50": 16.3,
+     "content_p95": 23.5,
+     "bitrate": 14860800,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 18,
+     "fps": 55,
+     "mbps": 8.3,
+     "content_p50": 19.5,
+     "content_p95": 31.0,
+     "bitrate": 7984791,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 19,
+     "fps": 51,
+     "mbps": 8.56,
+     "content_p50": 16.4,
+     "content_p95": 29.1,
+     "bitrate": 10220855,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    },
+    {
+     "t": 20,
+     "fps": 40,
+     "mbps": 7.13,
+     "content_p50": 18.3,
+     "content_p95": 23.9,
+     "bitrate": 12025604,
+     "tier": 0,
+     "w": 1920,
+     "net": null
+    }
+   ],
+   "adapt": [],
+   "content_p50": 19.9,
+   "content_p95": 37.2,
+   "input_p50": null,
+   "input_p95": null,
+   "grades": {
+    "content_p50": "local",
+    "content_p95": "local",
+    "fps": "acceptable",
+    "late_pct": "bad",
+    "stall_max": "local"
+   },
+   "source_fps": 58.7,
+   "cpu": {
+    "mac_agent_pct": 6.6,
+    "frame_viewer_pct": 72.4,
+    "frame_tailscaled_pct": 8.1,
+    "frame_sshd_pct": 0.9,
+    "frame_gamescope_pct": 10.0,
+    "frame_total_pct": 24.2
+   },
+   "viewer": "h264 software; ANGLE (Mesa, zink Vulkan 1.4(Turnip Adreno (TM) 750 (MESA_TURNIP)), OpenGL 4.6); raf 141 Hz",
+   "show_s": 6.43,
+   "panel": "valve.steam.desktopgame.2001414593",
+   "src": "separate:9384"
+  },
+  {
+   "scenario": "type",
+   "frames_sent": 25,
+   "frames_drawn": 25,
+   "frames_shown": 25,
+   "duration_s": 14.7,
+   "stages_ms": {
+    "capture": {
+     "p50": -0.3,
+     "p95": 0.9,
+     "p99": 1.1,
+     "n": 25
+    },
+    "queue": {
+     "p50": 0.0,
+     "p95": 0.0,
+     "p99": 0.0,
+     "n": 25
+    },
+    "encode": {
+     "p50": 5.0,
+     "p95": 33.4,
+     "p99": 33.6,
+     "n": 25
+    },
+    "socket": {
+     "p50": 0.1,
+     "p95": 0.1,
+     "p99": 0.2,
+     "n": 25
+    },
+    "network": {
+     "p50": 6.1,
+     "p95": 14.9,
+     "p99": 24.4,
+     "n": 25
+    },
+    "decode": {
+     "p50": 3.0,
+     "p95": 10.5,
+     "p99": 11.4,
+     "n": 25
+    },
+    "draw": {
+     "p50": 0.6,
+     "p95": 1.0,
+     "p99": 1.1,
+     "n": 25
+    },
+    "present": {
+     "p50": 0.8,
+     "p95": 1.4,
+     "p99": 1.7,
+     "n": 25
+    },
+    "content": {
+     "p50": 12.6,
+     "p95": 41.0,
+     "p99": 46.3,
+     "n": 25
+    },
+    "content_shown": {
+     "p50": 13.9,
+     "p95": 41.8,
+     "p99": 46.6,
+     "n": 25
+    }
+   },
+   "fps": 1.7,
+   "fps_shown": 1.7,
+   "late_pct": 100.0,
+   "stall_max": 3099.2,
+   "stalls_over_100ms": 21,
+   "mbps": 0.04,
+   "keyframes": 4,
+   "size": "960x646",
+   "captured": 79,
+   "viewer_never_drawn": 0,
+   "input_ms": {
+    "p50": 41.3,
+    "p95": 60.3,
+    "p99": 68.6,
+    "n": 18
+   },
+   "input_shown_ms": {
+    "p50": 43.0,
+    "p95": 61.1,
+    "p99": 69.6,
+    "n": 18
+   },
+   "input_parts_ms": {
+    "uplink": {
+     "p50": 5.3,
+     "p95": 11.6,
+     "p99": 14.2,
+     "n": 18
+    },
+    "mac": {
+     "p50": 23.1,
+     "p95": 35.0,
+     "p99": 42.6,
+     "n": 18
+    },
+    "back": {
+     "p50": 11.8,
+     "p95": 19.2,
+     "p99": 22.7,
+     "n": 18
+    }
+   },
+   "inputs": {
+    "sent": 66,
+    "seen": 18
+   },
+   "timeline": [
+    {
+     "t": 3,
+     "fps": 1,
+     "mbps": 0.01,
+     "content_p50": 11.8,
+     "content_p95": 11.8,
+     "bitrate": 1224075,
+     "tier": 4,
+     "w": 960,
+     "net": null
+    },
+    {
+     "t": 4,
+     "fps": 1,
+     "mbps": 0.02,
+     "content_p50": 14.7,
+     "content_p95": 14.7,
+     "bitrate": 2091896,
+     "tier": 4,
+     "w": 960,
+     "net": null
+    },
+    {
+     "t": 5,
+     "fps": 4,
+     "mbps": 0.1,
+     "content_p50": 18.6,
+     "content_p95": 37.4,
+     "bitrate": 3071304,
+     "tier": 3,
+     "w": 1440,
+     "net": null
+    },
+    {
+     "t": 6,
+     "fps": 5,
+     "mbps": 0.13,
+     "content_p50": 4.2,
+     "content_p95": 19.2,
+     "bitrate": 4031277,
+     "tier": 3,
+     "w": 1440,
+     "net": null
+    },
+    {
+     "t": 7,
+     "fps": 6,
+     "mbps": 0.04,
+     "content_p50": 12.0,
+     "content_p95": 46.3,
+     "bitrate": 300000,
+     "tier": 4,
+     "w": 960,
+     "net": null
+    },
+    {
+     "t": 10,
+     "fps": 1,
+     "mbps": 0.01,
+     "content_p50": 12.2,
+     "content_p95": 12.2,
+     "bitrate": 300000,
+     "tier": 4,
+     "w": 960,
+     "net": null
+    },
+    {
+     "t": 12,
+     "fps": 1,
+     "mbps": 0.02,
+     "content_p50": -1.2,
+     "content_p95": -1.2,
+     "bitrate": 842857,
+     "tier": 4,
+     "w": 960,
+     "net": null
+    },
+    {
+     "t": 14,
+     "fps": 1,
+     "mbps": 0.02,
+     "content_p50": 14.4,
+     "content_p95": 14.4,
+     "bitrate": 2091896,
+     "tier": 4,
+     "w": 960,
+     "net": null
+    }
+   ],
+   "adapt": [],
+   "content_p50": 12.6,
+   "content_p95": 41.0,
+   "input_p50": 41.3,
+   "input_p95": 60.3,
+   "grades": {
+    "content_p50": "local",
+    "content_p95": "acceptable",
+    "input_p50": "local",
+    "input_p95": "local"
+   },
+   "source_fps": 5.4,
+   "cpu": {
+    "mac_agent_pct": 1.2,
+    "frame_viewer_pct": 5.0,
+    "frame_tailscaled_pct": 1.5,
+    "frame_sshd_pct": 0.2,
+    "frame_gamescope_pct": 4.7,
+    "frame_total_pct": 8.5
+   },
+   "viewer": "h264 software; ANGLE (Mesa, zink Vulkan 1.4(Turnip Adreno (TM) 750 (MESA_TURNIP)), OpenGL 4.6); raf 140 Hz",
+   "show_s": 5.12,
+   "panel": "valve.steam.desktopgame.2001910179",
+   "src": "separate:9510"
+  }
+ ]
+}

compat-db/.gitignore

@@ -0,0 +1,2 @@
+.lakebed/
+.env.lakebed.server

compat-db/AGENTS.md

@@ -0,0 +1,88 @@
+# Lakebed app instructions
+
+Treat this capsule directory as the whole app. Use Lakebed's built-in APIs and CLI.
+
+## Limits to check first
+
+- The public alpha is not production-ready.
+- App code cannot use arbitrary npm packages or Node built-ins. Do not install app dependencies.
+- Database fields support `string()`, `boolean()`, `number()`, `id(...)`, and `userId()`. Chain `.optional()` or `.default(value)` on any field.
+- Local database data and uploaded files reset when the dev server restarts.
+- Hosted server secrets and outbound server-side `fetch` require a claimed deploy.
+- Unclaimed deploys expire. Use the expiry printed by the CLI. Claimed deploys do not expire.
+
+## App structure and APIs
+
+- `server/index.ts` exports the default `capsule()` definition. Put server code in `server/`. Import from `lakebed/server` or relative server and shared files.
+- `client/index.tsx` exports `App`. Put client code in `client/`. Import from `lakebed/client`, `preact`, `preact/hooks`, `preact/jsx-runtime`, `preact/jsx-dev-runtime`, or relative client and shared files.
+- Keep `shared/` pure TypeScript. Do not import DOM APIs, Node built-ins, env values, or Lakebed runtimes there.
+- In client code, use `import type app from "../server/index"` and `createClient<typeof app>()` for typed queries, mutations, and actions. Query hooks return `undefined` until the first result arrives.
+- Database calls are async. Await or return every database operation. Declare indexes with `.index(name, fields)` and query with `withIndex`. Use `by_creation` for unfiltered creation-order queries. Do not use legacy `where`, `orderBy`, `limit`, or `all`.
+- Queries and actions cannot write to the database. Use mutations or endpoints for writes. Filter user-owned data by the caller's `userId` and check ownership again before updates or deletes.
+- Guests get protected browser sessions without setup. Use `ctx.auth` on the server and `useAuth()` on the client. A user ID is not a credential. Do not invent guest IDs or check their prefixes.
+- Use `ctx.auth.requireIdentity()` for data that belongs to a guest or signed-in user. Use `ctx.auth.requireSignedIn()` for account-only operations. `isGuest` and `isSignedIn` are separate checks. Neither is true without a session.
+- Set `auth: { requireSignIn: true }` in `capsule()` to block all app data operations until sign-in. Client UI checks alone do not protect data. On the client, gate data components on `canAccessApp()` from `lakebed/client`.
+- If `auth.error` blocks access, show `retryAuth()` and Google sign-in. Retry cannot renew an expired or revoked token for a pending guest upgrade. Keep data components unmounted until auth recovers.
+- Declare Lakebed user fields with `userId()` from `lakebed/server`, never `string()`. When a guest signs in, declared `userId()` fields follow them to their account. `userId()` does not grant access. Keep owner filters and ownership checks. Make shared data intentional with a shared query, not a fake global user.
+- Use `auth.onGuestUpgrade` only for app-specific merge rules. It runs before automatic reference transfer in the same transaction. Plain strings, profile text, and external data do not transfer automatically.
+- Add Google sign-in with `SignInWithGoogle` or `signInWithGoogle()` from `lakebed/client`. For custom endpoints, send the identity token from `getIdentity().token` in the `X-Lakebed-Token` header. `Authorization` belongs to the app. Same-origin guest cookies work without that header.
+- Read server secrets through `ctx.env`, with values in `.env.lakebed.server`. They are not available at build time. Never put secrets in client or shared code. Deploy sync replaces hosted env with the file contents after the deploy is claimed.
+- Use complete Tailwind class names in JSX. Lakebed compiles CSS automatically from client files and their imports. Use inline styles for values loaded at runtime. Do not add CSS files, CSS modules, PostCSS, or a separate Tailwind build step.
+- Use the router from `lakebed/client` for pages. There is no file-based routing. Use `endpoint({ method, path }, handler)` from `lakebed/server` for webhooks and external HTTP clients. Request helpers include `headers.get(name)`, `query`, `json()`, `text()`, and `bytes()`.
+- Static capsule assets are limited to the favicon. Use `favicon.svg`, `favicon.ico`, or the `favicon` option in `capsule()`. Use `client.storage` for user uploads.
+
+## External data and dashboards
+
+Use global `fetch(url, options)` inside a handler, not `ctx.fetch`. Queries, mutations, actions, and endpoints can fetch locally and on claimed deploys. A mutation or writable endpoint can fetch external data and write rows in the same call. Data does not need to pass through the browser. Fetch shares the handler time budget and can hold up other writes, so ingest one small batch per call.
+
+Lakebed has no built-in scheduler or durable continuation queue yet. For periodic ingest, use an external scheduler to call a protected `POST` endpoint. Return a cursor for the caller to advance across separate requests. Keep `auth.requireSignIn` off for public reads and check an app secret in the ingest endpoint. CLI deploy tokens do not authenticate app endpoint callers.
+
+Database read budgets apply to the whole handler. A loop over `paginate()` does not bypass them. For totals larger than one handler can read, maintain summary rows during ingest. Store timestamps with `number()` as epoch milliseconds. See the [handler capability table](https://docs.lakebed.dev/capsule-api/index.md#handler-capabilities), [dashboard ingest example](https://docs.lakebed.dev/database/index.md#dashboard-counts), and [resource limits](https://docs.lakebed.dev/limits/index.md) before planning a backfill.
+
+## Run and verify
+
+Run commands from this capsule directory with `npx lakebed`.
+
+Start dev in a terminal session that can stay open:
+
+```sh
+npx lakebed dev
+```
+
+Keep that process running. Edit the starter to build the requested app, then test its behavior at the URL printed by dev. Use another terminal to inspect logs and data:
+
+```sh
+npx lakebed logs --port 3000
+npx lakebed db dump --port 3000
+```
+
+Use the dev server's port if it differs from 3000. Fix compile errors and runtime errors before deploying. Check user-owned data with separate browser profiles or the `?lakebed_guest=<name>` local test override when the app stores private data. Named overrides are local test identities and cannot upgrade to an account.
+
+## Deploy and verify
+
+After local checks pass, deploy from another terminal:
+
+```sh
+npx lakebed deploy
+```
+
+If the CLI requires a claim for server secrets or outbound fetch, follow its claim instructions and deploy again. A claim-required preview is not a working app.
+
+Open the returned URL and test the requested behavior. Inspect the deployed app from this capsule directory, using its returned ID or URL:
+
+```sh
+npx lakebed inspect <deploy-id-or-url>
+npx lakebed logs <deploy-id-or-url>
+```
+
+Hosted inspection is private by default. The CLI uses saved credentials. Report the working URL, the checks you ran, and the expiry if the deploy is unclaimed. Default app URLs use `lakebed.app` subdomains.
+
+## Read when needed
+
+- For server and client API details, read the [capsule API](https://docs.lakebed.dev/capsule-api/index.md).
+- For indexes and queries, read the [database guide](https://docs.lakebed.dev/database/index.md).
+- For Google sign-in and identity, read the [auth guide](https://docs.lakebed.dev/auth/index.md).
+- For user uploads, read the [storage guide](https://docs.lakebed.dev/storage/index.md).
+- For claiming, domains, and other CLI commands, read the [reference](https://docs.lakebed.dev/reference/index.md).
+- For an older capsule using synchronous database calls, read the [migration guide](https://docs.lakebed.dev/database-migration/index.md).
+- For anything else, read the [docs index](https://docs.lakebed.dev/llms.txt). It lists every page and section so you can fetch only the one you need.

compat-db/CLAUDE.md

@@ -0,0 +1 @@
+@AGENTS.md

compat-db/README.md

@@ -0,0 +1,81 @@
+# compat-db: Frame Control's compatibility database
+
+A private [Lakebed](https://docs.lakebed.dev/) capsule holding compatibility
+reports for Android apps on the Steam Frame. Only the maintainer's copy of
+Frame Control has the key to read or write it (see `shared()` in
+`ui/frame_compat_db.py`). Everyone else's reports stay on their computer
+unless they turn on **Share compatibility results**. Then the reports also go
+to PostHog as `compat_report` events, and the maintainer syncs them in (below).
+
+## Community reports
+
+```sh
+python3 ui/frame_compat_db.py sync --dry-run   # what would be added
+python3 ui/frame_compat_db.py sync             # add them
+```
+
+`sync` reads `compat_report` events through PostHog's query API and adds
+them with `via` set to `community`, `community-probe` or `community-install`.
+It skips invalid reports and anything over 30 per reporter per day. Each run
+re-reads the last 30 days, because an offline copy sends its reports late,
+with the time they were made. `posthog-sync.json`, next to the outbox,
+remembers which reports it has handled and each reporter's daily count, so
+nothing is added twice and the cap holds across runs.
+
+It needs:
+
+- the PostHog project id: `"project"` in `ui/telemetry.json`
+- a personal API key with `query:read`: `POSTHOG_PERSONAL_API_KEY`, or in the
+  Keychain (service `frame-control-posthog`, account `personal-api-key`)
+
+- Live: `https://frame-compat.lakebed.app` (deploy `dep_dDmcsosVSiFirpW6`,
+  claimed, so it doesn't expire). The browser page only says it's private.
+- Access: `GET /v1/reports?since=<createdAt>` and `POST /v1/reports` with
+  `{"reports": [...]}`. Both need the `x-frame-control-key` header. There are
+  no Lakebed queries or mutations, so nothing else can reach the rows.
+- Key: `FRAME_CONTROL_KEY` in `.env.lakebed.server` (git-ignored, synced on
+  deploy) and in the Mac's login Keychain (service `frame-control-compat-db`,
+  account `app-key`), where `ui/frame_compat_db.py` reads it.
+- Duplicates: each report carries a `clientId`, and a report already stored is
+  skipped, so retries and restores are safe to repeat.
+- Free-plan limits: 1 MiB of data and 16,384 rows per deploy, 1,000 writes a
+  day. A report is about 300 bytes, so roughly 3,000 reports fit.
+
+## Backups
+
+`scripts/compat-db-backup.sh` exports every report through the app key and
+keeps dated copies in
+`~/Library/Application Support/Frame Control/compat-db/backups` (newest 60).
+When the data has changed, it also uploads them with `gog` to the Google
+Drive folder named by `DRIVE_FOLDER_ID` (set it in the LaunchAgent's
+`EnvironmentVariables`). A LaunchAgent runs it daily at 03:40 and logs to
+`~/Library/Logs/frame-compat-backup.log`. If an export has fewer reports than
+the last good backup (`backups/.last-good`), it's kept as `refused-*.json`,
+nothing is uploaded, and every later run refuses too until you rerun with
+`--accept-shrink`.
+
+Reports that can't be sent (unreadable outbox lines, or ones the server
+rejects, which it lists by `clientId`) are never dropped: they move to
+`~/Library/Application Support/Frame Control/compat-db/compat-outbox.jsonl.rejected`,
+with the reason.
+
+Restore (to this deploy or a new one):
+
+```sh
+python3 ui/frame_compat_db.py import BACKUP.json   # duplicates are skipped
+python3 ui/frame_compat_db.py count
+```
+
+`npx lakebed db export dep_dDmcsosVSiFirpW6 --out full.json` is a second,
+owner-only export path through the Lakebed CLI.
+
+## Change and deploy
+
+```sh
+cd compat-db
+npx lakebed dev --port 3917                 # local; data resets on restart
+npx lakebed deploy                          # updates frame-compat.lakebed.app
+```
+
+To rotate the key: generate a new one, update the Keychain item and
+`.env.lakebed.server`, then deploy.

compat-db/client/index.tsx

@@ -0,0 +1,9 @@
+// No browser access to the data: Frame Control reads and writes it through the
+// key-protected /v1 endpoints only.
+export function App() {
+  return (
+    <main className="min-h-screen grid place-items-center bg-slate-900 text-slate-300 p-8">
+      <p>Frame compatibility database. Private: only Frame Control can use it.</p>
+    </main>
+  );
+}

compat-db/favicon.svg

@@ -0,0 +1,11 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64">
+  <defs>
+    <linearGradient id="lakebed-favicon-gradient" x1="12" y1="8" x2="52" y2="56" gradientUnits="userSpaceOnUse">
+      <stop stop-color="hsl(157 84% 58%)" />
+      <stop offset="1" stop-color="hsl(193 82% 44%)" />
+    </linearGradient>
+  </defs>
+  <rect width="64" height="64" rx="16" fill="url(#lakebed-favicon-gradient)" />
+  <circle cx="48" cy="16" r="18" fill="#fff" opacity=".16" />
+  <text x="32" y="39" text-anchor="middle" font-family="ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, sans-serif" font-size="32" font-weight="800" fill="#fff">C</text>
+</svg>

compat-db/lakebed.json

@@ -0,0 +1,3 @@
+{
+  "deployId": "dep_dDmcsosVSiFirpW6"
+}

compat-db/server/index.ts

@@ -0,0 +1,101 @@
+import { capsule, endpoint, json, string, table, text } from "lakebed/server";
+
+// Compatibility reports for Android apps on the Steam Frame, written and read
+// only by Frame Control. There are no queries or mutations, so browsers and
+// Lakebed clients can't reach the data; the two endpoints require the app key
+// (FRAME_CONTROL_KEY in .env.lakebed.server, kept in the Mac's Keychain).
+
+const RESULTS = ["runs", "crashes", "install_failed", "instance_failed"];
+const RATINGS = ["works", "issues", "broken"];
+const PAGE = 500;
+
+type Incoming = Record<string, unknown>;
+
+function field(r: Incoming, key: string, max = 200): string | undefined {
+  const v = r[key];
+  if (v === undefined || v === null || v === "") return undefined;
+  return String(v).slice(0, max);
+}
+
+function authorised(ctx: { env: Record<string, string | undefined> }, key: string | null): boolean {
+  const expected = ctx.env.FRAME_CONTROL_KEY;
+  if (!expected || !key) return false;
+  // Compare every position of the longer string so timing doesn't reveal the key length.
+  const n = Math.max(key.length, expected.length);
+  let diff = key.length ^ expected.length;
+  for (let i = 0; i < n; i++) diff |= (key.charCodeAt(i) || 0) ^ (expected.charCodeAt(i) || 0);
+  return diff === 0;
+}
+
+export default capsule({
+  name: "frame-compat",
+
+  auth: { requireSignIn: false },
+
+  schema: {
+    reports: table({
+      package: string(),
+      version: string().optional(),
+      result: string().optional(),
+      rating: string().optional(),
+      notes: string().optional(),
+      via: string().optional(),
+      reportedAt: string(),
+      steamos: string().optional(),
+      lepton: string().optional(),
+      runtime: string().optional(),
+      label: string().optional(),
+      source: string().optional(),
+      clientId: string()
+    }).index("by_package", ["package"]).index("by_client", ["clientId"])
+  },
+
+  endpoints: {
+    // GET /v1/reports?since=<createdAt>  -> { reports: [...], next: <createdAt> | null }
+    // Pass `next` back as `since` until it's null; rows at the boundary repeat, so dedupe by id.
+    list: endpoint({ method: "GET", path: "/v1/reports" }, async (ctx, req) => {
+      if (!authorised(ctx, req.headers.get("x-frame-control-key"))) return text("unauthorized", { status: 401 });
+      const since = req.query.get("since") ?? "";
+      const rows = await ctx.db.reports
+        .withIndex("by_creation", (q) => q.gte("createdAt", since))
+        .take(PAGE);
+      return json({ reports: rows, next: rows.length === PAGE ? rows[rows.length - 1].createdAt : null });
+    }),
+
+    // POST /v1/reports  body: { reports: [ {...}, ... ] }  (max 100 per call)
+    // clientId makes retries idempotent: a report already stored is skipped.
+    // Invalid reports are listed in `rejected` (by clientId) so the app can keep them.
+    add: endpoint({ method: "POST", path: "/v1/reports" }, async (ctx, req) => {
+      if (!authorised(ctx, req.headers.get("x-frame-control-key"))) return text("unauthorized", { status: 401 });
+      const body = await req.json<{ reports?: Incoming[] }>();
+      const incoming = Array.isArray(body?.reports) ? body.reports.slice(0, 100) : [];
+      let inserted = 0;
+      const rejected: string[] = [];
+      for (const r of incoming) {
+        const pkg = field(r, "package");
+        const clientId = field(r, "clientId", 80);
+        const reportedAt = field(r, "date", 40);
+        const result = field(r, "result");
+        const rating = field(r, "rating");
+        if (!pkg || !clientId || !reportedAt || (result && !RESULTS.includes(result)) ||
+            (rating && !RATINGS.includes(rating))) {
+          if (clientId) rejected.push(clientId);
+          continue;
+        }
+        const dup = await ctx.db.reports.withIndex("by_client", (q) => q.eq("clientId", clientId)).first();
+        if (dup) continue;
+        await ctx.db.reports.insert({
+          package: pkg, version: field(r, "version", 80), result, rating,
+          notes: field(r, "notes", 1000), via: field(r, "via", 20), reportedAt,
+          steamos: field(r, "steamos", 40), lepton: field(r, "lepton", 40),
+          runtime: field(r, "runtime", 20), label: field(r, "label", 120),
+          source: field(r, "source", 300), clientId
+        });
+        inserted++;
+      }
+      return json({ inserted, rejected, received: incoming.length });
+    }),
+
+    status: endpoint({ method: "GET", path: "/v1/status" }, () => text("ok"))
+  }
+});

docs/agents.md

@@ -0,0 +1,222 @@
+# Frame Control for AI agents
+
+**Documented interface:** Frame Control's own stdlib Python MCP adapter wraps
+its loopback HTTP API. No API key, hosted service, model SDK or third-party
+helper app is needed. The assistant is our HTML/Python implementation hosted
+in the platform Chromium browser. Its optional LLM endpoint is user configuration.
+Installing other apps is an optional management action, never a prerequisite.
+
+## Connect an MCP client
+
+The default MCP command starts a private HTTP backend on a free loopback port,
+with a fresh local access key. It stops that backend when the MCP client closes
+stdin or sends SIGTERM. It uses its own SSH control socket, so closing it does
+not close the desktop app's connection. No manually started server is needed.
+
+Add this stdio server to your MCP client (use absolute paths):
+
+```json
+{
+  "mcpServers": {
+    "frame-control": {
+      "command": "python3",
+      "args": ["/absolute/path/frame-control/ui/frame_mcp.py"]
+    }
+  }
+}
+```
+
+For Codex, the equivalent registration is:
+
+```sh
+codex mcp add frame-control -- python3 /absolute/path/frame-control/ui/frame_mcp.py
+```
+
+New agent sessions load the entry. An already running session may need its MCP
+connections reloaded; registration does not retroactively add tools to its
+initial tool inventory. Keep the checkout at that path while it is registered.
+Use `codex mcp remove frame-control` to remove only this registration.
+
+To reuse a running server instead, pass `--url http://127.0.0.1:47810`.
+The desktop app uses a random port; use that port with `--url`, or run the
+checkout server above. If the HTTP server uses `FRAME_UI_KEY`, pass the same
+value in the MCP process environment. This is local access control, not an LLM
+API key. The adapter only accepts loopback HTTP servers, refuses redirects and
+ignores environment proxies. Stdout contains newline-delimited JSON-RPC only.
+It supports MCP initialization, ping, tool listing and tool calls; no sampling,
+resources, prompts or streaming transport.
+
+| Tool | Arguments | Effect |
+|---|---|---|
+| `computer_state` | none | Read-only gamescope window IDs/focus and bounded AT-SPI tree; reports incomplete observations |
+| `status` | none | Battery, services, installed games and Flatpaks |
+| `screenshot` | `view`: `headset` (default) or `desktop` | Returns PNG image content to the MCP client |
+| `job` | `id` | Background install status; poll until `done`, inspect `error` |
+| `launch` | `appid` | Launch an installed Steam app |
+| `install` / `uninstall` | `id` | Install from Flathub / remove a user Flatpak |
+| `send_text` | `text` | Frame desktop clipboard; desktop must be open |
+| `send_file` | `path` | File on the HTTP server computer, up to 16 MiB, copied to Frame `~/Downloads` |
+| `panel` | `id` | Launch an installed Flatpak as a panel using the existing launcher |
+| `power` | `action`: `suspend`, `reboot`, `poweroff` | Open a terminal for the user to enter the sudo password |
+| `keep_awake` | `action`: `on`, `off`, `status` | Optional keep-awake script interface |
+
+Only install free software with its developer's consent. There is no purchase,
+entitlement bypass or arbitrary shell tool. `install` returns a background job
+ID; it does not claim the installation has finished. APK and sideloaded title
+installs remain in the main UI for now.
+
+### Approval is a separate human action
+
+Every mutation first returns an `approvalUrl`, exact action and `confirmation`
+token. Ask the user to open that URL and choose **Approve this action** or
+**Reject**. Then repeat the same tool and arguments with the token in
+`confirmation`. The server refuses execution before approval, changed arguments,
+expired tokens and reuse. A file approval binds the content hash as well as the
+path. Approvals last five minutes and disappear when the HTTP server restarts.
+A failed execution also consumes the approval; review a fresh request to retry.
+The panel does not execute an action merely because it was approved.
+
+MCP has no approval tool. This is protection against accidental model tool
+calls, not a sandbox against a client with independent shell/HTTP access to your
+computer. Grant the MCP client only the access you intend. Status, captures and computer-state observations
+are returned directly to that client, which may forward them to its configured
+model. The assistant's separate opt-in does not govern an external MCP client.
+
+Power still requires the existing password prompt in a local terminal. MCP
+never receives passwords. Power via `FRAME_LOCAL=1` is unsupported: use the main
+UI. The panel launcher and keep-awake adapter require zsh on the computer.
+
+[PR #16](https://github.com/saphid/frame-control/pull/16) owns
+`scripts/keep-awake.sh on|off|status`. This branch does not copy or change it.
+Until that script is present, the tool reports it unavailable. Keep-awake is
+never automatic: `on` changes the shared idle timers; explicitly approve `off`
+to restore them after work. It is not a per-agent lease; coordinate with other
+users. No changes are made to the analytics/update interfaces in
+[PR #17](https://github.com/saphid/frame-control/pull/17). Prompts, keys, model
+replies, screenshots and approval payloads are not sent to analytics.
+
+## Assistant panel
+
+Open **Tools → Open assistant**, or `http://127.0.0.1:47810/assistant`.
+To put the same page in the headset, with the HTTP server still running:
+
+```sh
+python3 scripts/assistant-on-frame.py --port 47810
+```
+
+This starts an SSH reverse forward bound to Frame loopback (port 47812 by
+default), then a dedicated Chromium profile tagged as a SteamVR panel. Keep the
+command running. Ctrl-C closes this browser profile and the tunnel; it leaves
+other Chromium windows and the existing HTTP server alone. A failed cleanup
+prints the temporary profile path so it can be removed when the Frame returns.
+Use `--frame-port` if the default is busy. Chromium must already be available as
+`org.chromium.Chromium`; the launcher never installs anything automatically.
+Place the panel with SteamVR's normal docking controls.
+
+Enter your full **chat-completions endpoint**, model name and optional key.
+An OpenAI-compatible local server works without a key; no OpenAI account is
+required. HTTP is allowed only on loopback; other endpoints require HTTPS.
+Loopback refers to the computer running the HTTP server, even in the headset.
+Endpoints with embedded credentials, query strings or redirects are refused.
+
+Check the message consent box and press **Send message**. Screenshot context is
+a separate unchecked box and sends one fresh capture with that request. Both
+boxes reset after sending, and changing endpoint/model revokes consent. Nothing
+is sent when opening the page or entering configuration. There is no model
+list fetch, saved history, automatic screenshot capture or assistant telemetry.
+Each send is independent: previous messages and replies are not included.
+
+Configuration, credentials and chat remain in page memory; close/reload the page
+or choose **Clear everything** to clear them. A request already sent cannot be
+recalled. Only the chosen endpoint gets the request; proxy environment variables
+and redirects are disabled. Its privacy and retention policy still applies.
+Replies are plain text and cannot call tools or operate the Frame. A model must
+support image inputs to accept screenshot context.
+
+## Evidence and limits
+
+**Verified 2026-09-28, SteamOS 0.4.1, BUILD_ID 20260925.6191901:** loopback HTTP
+status through an SSH reverse tunnel; platform Chromium created a separate
+SteamVR panel (confirmed in `GAMESCOPE_FOCUSABLE_APPS`); headset capture returned
+a PNG. These checks preceded the UI implementation. No power or global settings
+were changed.
+
+**Inferred:** visual comfort and controller keyboard usability while wearing
+the headset; panel creation in gamescope alone does not establish these.
+Windows/Linux launcher support, live third-party model endpoints, installs,
+uninstalls, power and keep-awake changes are not covered by that feasibility
+check. See the PR for the final unit and end-to-end results.
+
+**Verified end to end on the same Frame/build (2026-09-28):** a stdio MCP client
+initialized, read status, retrieved a headset PNG, and transferred a test file
+only after approval through the Chromium page. Remote file bytes matched;
+reusing the confirmation was rejected. The actual headset Chromium page sent
+text and then separately opted-in image context to a local test endpoint and
+displayed its replies. Without consent there were zero endpoint requests.
+The test endpoint returned canned replies: model inference and a live external
+provider remain **unverified**. The launcher’s Ctrl-C cleanup was checked;
+profiles, SSH tunnels and the test file were removed. No installs, removals,
+launches of user games, power operations or keep-awake changes were performed.
+
+**Verified locally:** unit coverage includes the stdio subprocess, approval
+binding/expiry/replay/concurrency, file-change rejection, and a real local HTTP
+endpoint for opt-in, text/image payloads and redirect refusal. Fake-Frame
+regressions are in `tests/e2e/test_agents.py`; local Docker execution was blocked
+because the Docker daemon was unavailable. The ARM64 fake-Frame CI job passed
+on this branch (run 36421345682).
+
+**Verified on the same Frame/build:** both Ctrl-C and SIGTERM close the dedicated
+browser profile and SSH tunnel and remove the profile and panel log.
+
+**Verified end to end on the same Frame/build (2026-09-29), with mutations:**
+a stdio MCP client started `ui/frame_mcp.py` in its default mode (private
+backend, no API key, no prestarted server) and a human approved or rejected
+each change in the approval page in a real Chrome window:
+
+| Tool | Result on the Frame |
+|---|---|
+| `send_file` | Approved; the file arrived in `~/Downloads` with identical contents |
+| `install` | Approved; `io.github.fizzyizzy05.binary` job finished in about 35 s |
+| `panel` | Approved; gamescope listed a new panel window, and `computer_state` reported the same window ID and PID. The app rendered in that window (below) |
+| `launch` | Approved; Keep Talking and Nobody Explodes (341800) started under Proton and `computer_state` reported it as the focused app |
+| `uninstall` | Approved; app and locale removed |
+| `power` | Rejected in the page. Unapproved retries, the same token used for `uninstall`, and a retry after rejection were all refused. Nothing was powered off |
+| `send_text` | Approved, then refused because the Plasma desktop was not open (documented requirement) |
+| `keep_awake` | `status` reports the script unavailable until PR #16 lands |
+
+A separate Claude Code CLI session, with only this server configured, read
+status, `computer_state` and a headset capture, and requested an install. It
+received an approval URL and did not execute anything.
+
+The assistant opened as a Frame panel through `scripts/assistant-on-frame.py`.
+Against a loopback stub model, a send without consent made zero requests. With
+consent it made exactly one, carrying the text and a fresh Frame screenshot.
+Consent unticked itself after sending. SIGTERM removed the panel, profile, log
+and tunnel.
+
+**Not verified while unworn:** every headset capture was a uniform dark frame,
+so SteamVR's rendered view of panels and the game could not be checked; window
+captures (`xwd`) were used instead. MCP can launch a game or panel but has no
+tool to stop one: the tester stopped them over SSH. Removing an app leaves any
+runtime it pulled in; Flatpak may also remove related extensions when that
+runtime is removed by hand.
+
+![Approval page showing the exact install action](img/mcp-approval-install.png)
+
+![The installed Flatpak rendering in its own gamescope panel window](img/mcp-panel-binary.png)
+
+![Assistant in Frame Chromium, after an opted-in request to the local test endpoint](img/assistant-panel.png)
+
+## Computer-use coverage
+
+MCP is the tool transport, not a limit on what an agent can do. A screenshot,
+accessibility snapshot, click or keystroke can all be MCP tools when we have a
+reliable underlying implementation. See [the investigation](computer-use.md)
+for the verified boundaries. `computer_state` adds observation, not an input
+channel: it cannot click an approval button or send keyboard/mouse events.
+
+**Verified 2026-09-29, SteamOS 0.4.1, BUILD_ID 20260925.6191901:** the command saved
+by `codex mcp add` launched without a prestarted server, negotiated MCP, listed
+12 tools, read live Frame status and returned X11 window state plus AT-SPI
+observations. It exited 0 at EOF. Steam's accessibility tree had inaccessible
+children, reported as `incomplete: true`; this is not a complete actionable UI.

docs/announcements.md

@@ -0,0 +1,144 @@
+# Announcing changes
+
+How we tell people about Frame Control features and fixes as they merge. The
+same few sentences feed the X post, the release notes and the website, so they
+are written once, in the pull request, while the change is fresh.
+
+## What gets announced
+
+| Kind | Announce? | Example |
+|---|---|---|
+| **New** — something you can now do | Yes, its own post | Stream Mac windows into the Frame as panels |
+| **Better** — something existing got noticeably easier, faster or wider | Yes, its own post or a roundup | APKs install without the Android SDK |
+| **Fixed** — something broken that users hit | Yes if people reported it or it blocked a flow; otherwise the next roundup | Mac mirror showed a zoomed-in corner |
+| **Release** — a tagged build | Always, one post linking the release | Frame Control 0.3.1 |
+| Tests, refactors, CI, docs-only, website polish | No | Fake Frame tests, screenshot crop |
+
+If a change isn't worth a sentence to someone who owns a Frame, it isn't
+announced.
+
+## The voice
+
+Write it the way the README and release notes already read.
+
+- **Lead with what the person can now do**, in their words: "Install older
+  versions of an app when the newest won't run on the Frame", not "Add APK
+  version fallback resolver".
+- **Plain and specific.** Name the thing, give the number: "about 30 fps",
+  "4,500 apps", "up to 8 older versions". No "blazing", "game-changing",
+  "excited to announce", "huge", or exclamation marks.
+- **Say where it works.** Platforms and what it was tested on, briefly:
+  "Tested on a real Frame from macOS 27." Don't claim what wasn't tested.
+- **Say the catch.** If it needs a setup step, an unsigned build, or only works
+  on one OS, say so in the same post.
+- **Sentence case**, full sentences, British spelling to match the docs.
+  Contractions are fine.
+- **No emoji in the text.** One image, GIF or short clip carries the tone
+  instead. The only symbol is the kind label below.
+- **Unofficial, always.** Never imply Valve made or endorses it. Say "Steam
+  Frame" for the headset and "Frame Control" for the app.
+- **Credit people.** If a user reported the bug or suggested the feature and is
+  happy to be named, thank them by handle.
+
+## The formats
+
+Every announceable PR ends with an `## Announcement` section holding these.
+The reviewer checks it like code.
+
+### 1. The post (X, and any other social account)
+
+```
+<Kind>: <what you can do now, one sentence>
+
+<one or two sentences: how it works, the catch, or what it was tested on>
+
+<link>
+```
+
+- `<Kind>` is `New`, `Better` or `Fixed`.
+- 280 characters maximum including the link (X counts any link as 23).
+- One link: the release if it has shipped, otherwise the PR.
+- One visual when the change is visible: a screenshot from the app, a GIF, or a
+  short clip from the headset. Alt text describes what it shows.
+- No hashtags, except `#SteamFrame` on releases and on posts about something
+  new, because people search for it.
+
+### 2. The release-note line
+
+One bullet under **New in x.y.z**, same as the current release notes: the
+first half of the post's first sentence, no kind label, no link.
+
+### 3. Release post
+
+```
+Frame Control <version>: <the headline change>
+
+<one sentence on the headline change>. Also: <two or three short items>.
+
+Windows, macOS and Linux: <release link>
+#SteamFrame
+```
+
+The release title on GitHub uses the same `Frame Control <version>: <headline>`
+line, as 0.3.0 and 0.3.1 already do.
+
+### Roundups
+
+Small fixes that don't earn their own post wait for a roundup, posted with the
+next release or when three or more have piled up:
+
+```
+Fixed in Frame Control this week:
+- <fix>
+- <fix>
+- <fix>
+
+<link>
+```
+
+## Examples from what has already merged
+
+**#11, older APK versions**
+
+```
+New: when an Android app is too new for the Frame, Frame Control now offers
+older versions that will install.
+
+It checks F-Droid, its archive and IzzyOnDroid, and verifies each download
+before it goes on the headset.
+
+https://github.com/saphid/steam-frame/pull/11
+```
+
+**#8, Mac mirror fixes**
+
+```
+Fixed: mirroring your Mac into the Steam Frame now fits the whole desktop in
+the panel, asks for the right password, and shows the cursor.
+
+Tested end to end on a real Frame from macOS 27.
+
+https://github.com/saphid/steam-frame/pull/8
+```
+
+**v0.3.1**
+
+```
+Frame Control 0.3.1: install APKs without the Android SDK
+
+Frame Control now reads APK files itself, so there's nothing extra to install.
+Also: Linux and Windows game sideloading, and one-click install links.
+
+Windows, macOS and Linux: https://github.com/saphid/steam-frame/releases/tag/v0.3.1
+#SteamFrame
+```
+
+## Posting
+
+Nothing is posted without a person approving it. The flow is:
+
+1. The PR carries its `## Announcement` section.
+2. On merge, the post is drafted from that section (manually for now).
+3. Alex approves or edits it, then it's posted from the project account.
+4. Replies and questions that turn out to be bugs become GitHub issues labelled
+   `feedback`, same as the website form.

docs/apk-repos.md

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

docs/apk-sources.md

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

docs/apks.md

@@ -0,0 +1,341 @@
+# Installing APKs (Lepton)
+
+The confidence labels are the same as in [ssh.md](ssh.md). Android apps run
+in **Lepton**, Valve's Waydroid-based container. Lepton is built for games,
+not general Android use
+([GamingOnLinux](https://www.gamingonlinux.com/2026/09/lepton-from-valve-to-run-android-games-on-linux-is-now-open-source/)).
+
+**VR streaming clients:** WiVRn 26.9 and ALVR 20.14.1 install, but both fail
+OpenXR instance creation on the checked Frame because its Android runtime lacks
+`XR_KHR_convert_timespec_time` (**verified** 2026-09-28, SteamOS 0.4.1,
+BUILD_ID 20260925.6191901). They are not Frame Control dependencies. See
+[the feasibility results and options](linux-vr-streaming.md).
+
+## Install from the Mac: one app, one Lepton instance (verified 2026-09-25)
+
+Use Frame Control's **Android apps** section (search, Install, Test, Report), drop
+an `.apk` on **Send to Frame**, or:
+
+```sh
+./scripts/install-apk.sh some-app.apk            # own instance, Steam shortcut
+python3 ui/frame_android.py list|launch|stop|remove|probe <package>
+```
+
+Each APK becomes its own app, the way T3 Code is set up (see the instance
+section below), instead of going into Lepton Development:
+
+1. `ui/frame_apk.py` reads the package, label, version, ABIs and icon
+   (a stdlib parser of the binary manifest and resource table, so no Android SDK). APKs that need
+   API > 30 or have no `arm64-v8a` build are refused.
+2. The APK, `frame/android/lepton-app.sh` (as `launch.sh`), `instance.id`,
+   `meta.json`, the icon and the `lepton-show-flatscreen` marker go to
+   `~/Applications/Android/<package>/` on the Frame.
+3. A non-Steam shortcut is added through Steam's CEF debug port
+   (`frame/android/steam_shortcuts.py`), with no Steam restart.
+4. Launching the shortcut runs Lepton directly with `SteamAppId` set to the
+   instance id (`2800000000 + crc32(package) % 70000000`). That's a
+   "steamlaunch" context, so app data in `compatdata/<id>/internal` survives
+   restarts and updates, and each app gets its own SteamVR panel. Several can
+   run at once alongside Lepton Development, each in its own container
+   (`lepton-steamlaunch-<id>`, ADB on 5556, 5557, …).
+
+Verified with AntennaPod and Tabletop Tools: installed in about 7 s, launched
+from the shortcut, stopped, and relaunched with their data intact. ADB and
+Lepton Development aren't involved.
+
+`--dev` keeps the old path: ADB into Lepton Development over an SSH tunnel
+(first free Mac port from 15555), which starts Lepton Development if needed.
+Apps installed that way are deleted when it exits (see below). No pairing or
+"Allow debugging?" prompt is needed for either path.
+
+Lepton Development must be installed once. Over SSH,
+`ssh frame 'steam steam://install/3056000'` queues it, but the install still
+needs to be confirmed or started in the headset.
+
+## When an app needs a newer Android
+
+Lepton is Android 11 (API 30), with arm64-v8a only. If Frame Control refuses
+an APK, it shows compatible versions from F-Droid's main and archive repos and
+IzzyOnDroid. It shows at most eight version names, newest first, preferring an
+arm64-only build, and says how many compatible builds it found in total.
+Each index is reduced to its compatible builds once a day and cached (about
+16 MB). The first lookup takes about 30 s and 100 MB of memory; later ones are
+instant.
+Choose **Install** to download a listed version, verify its SHA-256 against
+the index, and install it as its own app.
+
+You can also inspect a file or look up a package from the command line:
+
+```sh
+python3 ui/frame_android.py info some-app.apk
+python3 ui/frame_android.py versions some-app.apk
+python3 ui/frame_android.py versions org.example.app
+```
+
+The search links open APKMirror, APKPure, Uptodown, F-Droid and GitHub. Pick a
+version whose minimum is Android 11 or lower and that has an arm64-v8a build
+(or no native code). Frame Control does not fetch APKs from those search sites.
+Older versions may lack fixes, and being installable does not guarantee an
+app will run: see the missing services below. Android may refuse a downgrade
+or an update signed by a different publisher; removing the app deletes its data.
+
+## Installed apps disappear when Lepton Development closes (verified 2026-09-25)
+
+Lepton Development runs in a throwaway "dev" context. When it exits for any
+reason (you close it, or it crashes), the launcher script
+`~/.local/share/Steam/steamapps/common/Lepton/lepton` calls
+`clear_baked_app_data "non steamlaunch container"` and **deletes every app
+installed over ADB**. The journal shows `Clearing baked app data due to non
+steamlaunch container`, and `pm list packages -3` is empty afterwards.
+
+The script skips the wipe when `LEPTON_NO_CLEANUP` is set
+(`liblepton/liblepton.sh`, `clear_baked_app_data`). To keep your apps, set
+Lepton Development's Steam launch options to:
+
+```
+LEPTON_NO_CLEANUP=1 %command%
+```
+
+(Steam → Library → Lepton Development → Properties → Launch Options.) Inferred
+from the script, not yet tested across a restart.
+
+## Which APKs work (verified 2026-09-25, SteamOS build 20260922.6101926)
+
+Lepton is LineageOS 18.1 (`lepton_arm64_only`): Android 11, API 30,
+`abilist=arm64-v8a` only, Mesa (Turnip, Adreno 750) with GLES 3.2 and
+Vulkan 1.4. About 30 F-Droid apps were installed and opened on the Frame to
+check each rule. The results are in the compatibility database (see compat-db/README.md).
+
+**Won't install** (the installer refuses):
+
+| Rule | Seen on device |
+|---|---|
+| `minSdkVersion` > 30 | `INSTALL_FAILED_OLDER_SDK: Requires newer sdk version #33 (current version is #30)` |
+| Native code without `arm64-v8a` (32-bit ARM or x86 only) | `INSTALL_FAILED_NO_MATCHING_ABIS` |
+
+**Crash on launch.** Lepton has no `clipboard` system service, so
+`getSystemService(CLIPBOARD_SERVICE)` returns null:
+
+| What | Result |
+|---|---|
+| **Jetpack Compose UI < 1.11** | Crashes as soon as a Compose screen appears: `null cannot be cast to non-null type android.content.ClipboardManager` in `AndroidComposeView`. Seen with 1.5, 1.6, 1.7, 1.8 and 1.10 apps. |
+| Jetpack Compose UI 1.11, 1.12, 1.13 | **Works.** Six apps opened fine, including Aurora Store and NewPipe. |
+| Old Compose, but the first screen uses classic Views | Opens (FoCal, Compose 1.3), and crashes only on Compose screens |
+| SDL2 apps, including Kivy | Crash: SDL calls `ClipboardManager.addPrimaryClipChangedListener` at start-up |
+| Godot 4.3 | Crashes (clipboard cast). Godot 4.6.1 works. |
+
+**Works:** classic Android Views apps, Flutter (2 of 2), libGDX (2 of 2),
+Compose 1.11+, Firebase-using apps. React Native: 2 of 3 opened; one
+(controlloid) died with SIGSEGV on the Hermes JS thread. A Qt 6 app
+(AusweisApp) failed on a missing libc++ symbol.
+
+**Missing pieces:** an app may open but fail when you use one of these:
+
+- No Google Play Services.
+- No activity for `VIEW` of web links, `OPEN_DOCUMENT`/`GET_CONTENT` (no file
+  picker), `IMAGE_CAPTURE`, or text-to-speech. WebView (Chromium 152) is there.
+- No Downloads or Contacts providers.
+- Missing system services also include `accessibility`, `vibrator`, `phone`,
+  `print`, `usb`, `nfc` and `autofill`. The declared features lack
+  `touchscreen.multitouch`, `bluetooth_le` and `telephony`.
+- No on-screen keyboard (IME) is installed. How text entry reaches Android
+  apps in the headset hasn't been checked.
+
+**Lepton itself can crash.** Three times during testing, the graphics HAL
+(`android.hardware.graphics.composer@2.1-service`) aborted right after an app
+crashed. SurfaceFlinger died, the whole `lepton-dev` container exited, and the
+installed apps were wiped (see above). A retry of the same app worked, so it's
+intermittent rather than app-specific.
+
+**How good are the predictions?** In a random sample of 12 apps rated "Should
+work", all 12 installed, opened and were still running 12 s later (two needed
+a retry because Lepton crashed mid-install). "Opened" isn't the same as fully
+working: see the missing pieces above.
+
+## Catalogue and compatibility reports
+
+Frame Control's **Android apps** section lists every F-Droid app with a
+verdict: Works on Frame, Should work, Might work, Probably crashes, or Won't
+work, with the reasons. As of 2026-09-25 that's 30 working, 3,323 should work,
+223 might work, 723 probably crash (mostly Compose < 1.11) and 156 won't
+install. Each app is rated on its newest version that Lepton can install,
+because F-Droid often publishes separate per-ABI builds and the newest is
+frequently x86_64. **Install** downloads the APK (SHA-256 checked against the
+F-Droid index) and sets it up as its own instance.
+
+No ProtonDB-style database for sideloaded Android apps on the Frame existed
+as of 2026-09-25. [Steam Frame Hub](https://verified.steamframehub.com/)
+collects community reports for Steam games only and has no public API, and
+Valve's "Great on Frame" badges and each Steam app's `recommended_runtime`
+(for example `lepton-stable`) also cover Steam games only
+([VR.org](https://vr.org/articles/steam-frame-lepton-android-runtime-52-of-130-certified-2026)).
+So Frame Control keeps its own. Your reports are saved on your Mac; the
+maintainer's copy also syncs them to a private Lakebed database.
+**Test** records whether the app stays up in its own instance, and **Report**
+(for any APK, F-Droid or not) records whether it worked, how it was run, where it came from, and notes, each with the SteamOS and Lepton build ids.
+See
+[compat-db/README.md](../compat-db/README.md) and
+[apk-catalog/README.md](../apk-catalog/README.md).
+
+## In-headset app store: F-Droid 1.17 (verified 2026-09-25)
+
+F-Droid 1.23 uses an old Compose and crashes on launch. **F-Droid 1.17.2**, the
+newest archived build without Compose, runs, loads the full catalogue (the
+first repo update takes about 90s), and can install apps. F-Droid 2.0 uses
+Compose 1.12, so it should work, but it hasn't been tried. The catalogue's
+Install button for F-Droid installs 1.17.2. To let F-Droid install apps without
+a settings prompt, with the tunnel open:
+
+```sh
+adb -s $S shell appops set org.fdroid.fdroid REQUEST_INSTALL_PACKAGES allow
+```
+
+## Handy commands
+
+Open a tunnel by hand (use any free local port):
+
+```sh
+ssh -f -N -M -S /tmp/frame-adb.sock -L 127.0.0.1:15555:127.0.0.1:5555 frame
+adb connect 127.0.0.1:15555
+S=127.0.0.1:15555
+# when done: adb disconnect $S; ssh -S /tmp/frame-adb.sock -O exit frame
+```
+
+Then:
+
+```sh
+adb -s $S shell pm list packages -3              # installed third-party apps
+adb -s $S shell monkey -p <pkg> -c android.intent.category.LAUNCHER 1
+# If monkey exits with -5 (it did for T3 Code), start the activity directly:
+adb -s $S shell am start -W -n "$(adb -s $S shell cmd package resolve-activity --brief -c android.intent.category.LAUNCHER <pkg> | tail -n 1)"
+adb -s $S logcat -d -b crash                      # why an app died
+adb -s $S uninstall <pkg>
+adb -s $S exec-out screencap -p > shot.png        # the Lepton window
+```
+
+## Reaching a Mac service from Lepton (T3 Code v2, verified 2026-09-25)
+
+Lepton runs in podman with `pasta` networking. It has **its own loopback**, so
+a port on the Frame's `127.0.0.1` isn't visible as `127.0.0.1` inside Android.
+But pasta runs with `--map-gw`, so the **gateway address inside Lepton
+(`192.168.1.1` on the home network) maps to the Frame host's loopback**.
+
+T3 Code v2 on the Mac listens only on `127.0.0.1:3873`. To reach it:
+
+1. Keep `ssh -N -R 127.0.0.1:3873:127.0.0.1:3873 frame` running on the Mac,
+   for example from a LaunchAgent with `KeepAlive`, so launchd restarts it if
+   it drops.
+2. In the app on the Frame, the environment host is `192.168.1.1:3873`.
+
+The app on the Frame was built from the T3 Code v2 nightly source with `expo prebuild` and `gradlew assembleRelease
+-PreactNativeArchitectures=arm64-v8a`, using Homebrew `openjdk@17` and the
+`android-commandlinetools` SDK. It's signed with the debug key.
+
+To pair again, issue a one-time code on the Mac and type it into
+**Add environment**:
+
+```sh
+A="/Applications/T3 Code (V2 Preview).app"
+ELECTRON_RUN_AS_NODE=1 "$A/Contents/MacOS/T3 Code (Alpha)" \
+  "$A/Contents/Resources/app.asar/apps/server/dist/bin.mjs" \
+  auth pairing create --base-dir "$HOME/.t3-v2" --ttl 15m --label "Steam Frame"
+```
+
+The app is deleted whenever Lepton Development closes (see above), so reinstall
+it afterwards or set `LEPTON_NO_CLEANUP=1`. The gateway address comes from the Frame's network when Lepton starts. On a
+different network, check it with `adb shell ip route` and edit the host.
+
+## Lepton Development forgets apps; give an app its own instance (verified 2026-09-25)
+
+**Lepton Development wipes every installed app when it exits.** Its launcher
+logs `Clearing baked app data due to non steamlaunch container`, unless
+`LEPTON_NO_CLEANUP` is set. A Steam-style launch (with `SteamAppId` set) is a
+"steamlaunch" context and keeps its data:
+
+- App data lives in `STEAM_COMPAT_DATA_PATH/internal/<package>` (symlinked to
+  `/data/data/<package>`) and survives everything, including APK updates.
+- `STEAM_COMPAT_DATA_PATH/baked` is Lepton's Android snapshot. It's rebuilt when
+  the APK changes, or when the app exits within 30 seconds of starting.
+- `STEAM_COMPAT_DATA_PATH` must be under `~/.local/share/Steam` (use
+  `steamapps/compatdata/<id>`). Only that tree is mounted in the container. Put
+  it anywhere else and the symlinks dangle, so the app crashes with
+  `ENOENT` on its first file write.
+- Lepton runs apps headless unless an empty `lepton-show-flatscreen` file sits
+  next to the APK (`STEAM_COMPAT_INSTALL_PATH`).
+- Several instances can run at once. Each gets ADB on `5555 + offset`
+  (`podman ps --format "{{.Names}} {{.Labels.adb_port}}"`).
+- Outside Steam, Lepton's `setpgid --foreground` re-exec fails with no
+  terminal. Set `IS_PARENT=true` and start it with `setsid --wait`.
+
+[`frame/t3code/launch.sh`](../frame/t3code/launch.sh) does all this for T3
+Code (context `steamlaunch-2873873873`; ADB is the first free `5555 + n`, e.g. 5557). It needs the Steam client
+running (it mounts `~/.steam/steam.pipe`).
+
+**T3 Code in the Steam library (verified 2026-09-25).** The wrapper lives on
+the Frame at `~/Applications/T3Code/launch.sh`, with `t3code.apk` and the
+flatscreen marker next to it. It's a non-Steam shortcut called "T3 Code"
+(shortcut app id `3130509679`). Launching it from Steam gets its own SteamVR
+panel, `valve.steam.desktopgame.3130509679`, and opens already paired.
+
+- The shortcut was added without restarting Steam, through Steam's CEF debug
+  port (`127.0.0.1:8080` on the Frame, target `SharedJSContext`):
+  `SteamClient.Apps.AddShortcut(name, exe, "", "")`, then `SetShortcutName`
+  and `SetShortcutStartDir`. `steam steam://addnonsteamgame/<path>` only logged
+  the URL and added nothing.
+- To launch it over SSH: `steam steam://rungameid/13445436691150012416`, which
+  is `(3130509679 << 32) | 0x02000000`.
+- Steam sets `STEAM_FOSSILIZE_DUMP_PATH` for shortcut launches but not
+  `STEAM_COMPAT_SHADER_PATH`. Lepton then dies with "unbound variable", so the
+  wrapper sets both.
+- To update T3, replace `t3code.apk`. Lepton rebuilds its snapshot on the next
+  launch, and the pairing survives.
+
+## Crashing apps can take down the headset session (verified 2026-09-25)
+
+Some apps crash Android's graphics composer HAL, which kills the Lepton
+container. On 2026-09-25 a batch crash-test also coincided with `steamvr.service`
+restarting "on client request", which stops and SIGKILLs `gamescope-session`.
+After one of those kills, gamescope crash-looped about once a second on
+`rendervulkan.cpp:2181 ... Assertion '!modifiers.empty()'` because it kept
+attaching to the SteamVR processes orphaned from the dead session. The fix
+without sudo was to `for p in vrdashboard vrcompositor vrserver; do pkill -TERM -x $p; done` (pkill takes one pattern). The
+next session then started SteamVR fresh and recovered within a minute.
+
+## Android display: resolution, UI scale, text size (verified 2026-09-25, SteamOS 0.3.0, build 20260922.6101926)
+
+Each running Lepton instance has its own ADB port on the Frame, assigned at
+launch: 5555 is Lepton Development, and own-instance apps take the next free
+port (T3 Code was on 5557). Find them with `ss -ltn` (5555–5599) and identify
+each with `pm list packages -3`. Both instances reported `Physical size:
+1920x1080`. Their densities were 180 dpi (Lepton Development) and 213 dpi
+(T3 Code), and `settings get system font_scale` returned `null` (1.0).
+
+These all apply immediately and read back as set. Tested on Lepton Development
+only:
+
+```sh
+adb -s $S shell wm size 2560x1440         # or: wm size reset
+adb -s $S shell wm density 240            # or: wm density reset
+adb -s $S shell settings put system font_scale 1.15
+adb -s $S shell settings delete system font_scale
+```
+
+After a `wm` reset, Android writes `font_scale=1.0` back asynchronously, so a
+single delete that follows one reads back `1.0`. A second delete a second later
+leaves it `null`. Frame Control's **Android display** card does this for you
+(`/api/android/display`).
+
+**Inferred, not yet checked in the headset:** a bigger Android resolution with
+density scaled to match (2560×1440 at 4/3 of the density) gives sharper text,
+because gamescope scales Lepton's surface to fit the same panel. Also unverified:
+whether the settings survive the app or its Lepton instance relaunching.
+Lepton Development rebuilds its Android data on exit, so there they probably
+don't.
+
+## Expansion files and save backups
+
+SideQuest-inspired CLI helpers install local OBB files into an already-running
+app instance and back up/restore a stopped instance's private app data. See
+[SideQuest features and limits](sidequest.md) for commands, archive scope and
+verification status. These paths have offline coverage; real Frame storage and
+permissions remain unverified. They do not change APK install or launch behavior.

docs/computer-use.md

@@ -0,0 +1,67 @@
+# Computer use through Frame Control MCP
+
+The MCP transport can carry semantic actions or visual computer-use actions.
+The limits are the Frame's underlying interfaces, permissions and whether an
+action can be targeted and verified. A stereoscopic headset screenshot alone
+is not a reliable coordinate system for clicking a particular app window.
+
+## What exists, and the right route
+
+| Surface | Evidence and route | Remaining work or boundary |
+|---|---|---|
+| Frame management | **Verified:** existing SSH/HTTP operations for status, capture and file transfer work through MCP. Typed install/launch/power tools wrap the existing API. | Extend typed operations before adding generic mouse automation. Preserve explicit approval for consequential changes. |
+| App/window observation | **Verified 2026-09-29:** `computer_state` reads gamescope X11 window/app/process triples, focused app and the installed AT-SPI library. | Bounded to 96 accessible nodes and six levels. Trees may be truncated, stale, hidden or incomplete. Snapshot paths and XIDs are observations, never durable action permissions. |
+| Chromium page content | **Verified previously:** the assistant rendered and could be exercised through CDP in an isolated Frame Chromium profile. | A shipped click/type surface needs exact owned browser/target binding, fresh element references, lifecycle cleanup, consent and post-action readback. Do not expose unrestricted JavaScript or attach to arbitrary existing profiles automatically. |
+| Steam UI | **Verified 2026-09-29:** the AT-SPI service listed the Steam client's Chromium process and frame nodes, but child traversal was incomplete. Existing `frame_steam.py` uses Steam's loopback CDP endpoint for specific operations. | Prefer those narrow Steam interfaces. Presence of AT-SPI does not prove controls are actionable, and generic pointer injection is not proved for VR menus. |
+| Other Linux apps | **Verified 2026-09-29:** Frame ships libX11, libXtst and libatspi; `/dev/uinput` is writable by the current user. | Library presence and access permissions do not prove that a game accepts input. Global virtual input can affect whichever app has focus. Do not ship a blind keyboard/mouse tool on this evidence alone. |
+| Panel focus and layouts | **Documented in [#41](https://github.com/saphid/frame-control/pull/41):** `POST /api/panels` accepts `list`, `focus` and `open`. Focus was verified there. | Reuse that owned interface after integration. Its tested gamescope-owned overlay transform setters return `PermissionDenied`; no reliable saved spatial-layout interface was established. Do not duplicate its implementation here. |
+| Shared keyboard/trackpad | **Documented in [#19](https://github.com/saphid/frame-control/pull/19):** `/api/input` supplies state/start and event submission, implemented with a bundled KDE Connect daemon. | This branch does not import, launch or depend on that daemon. The user's own-implementation rule remains authoritative. A first-party input implementation or permitted bundled-library route needs its own delivery evidence before MCP integration. |
+| Physical/device boundaries | **Documented:** an asleep Frame may be off the network; power authorization can require the user's password; physical pairing and headset fit/comfort require the user. | MCP cannot bypass offline hardware, consent, compositor permissions or physical verification. Keep explicit human handoffs. |
+
+## Reusing the existing computer-use work
+
+**Documented:** the installed `cua-driver` skill has the right control pattern:
+observe an exact window, use a semantic target if available, fall back to pixels
+from that same snapshot, then read back the result. Its browser route requires
+an exact process/window/target binding and session-scoped element references.
+Those are useful design rules for Frame tools.
+
+**Verified locally 2026-09-29:** `cua-driver describe get_window_state` describes
+host-local process/window IDs and macOS AX inspection. It does not establish an
+SSH Frame target. The installed skill's advertised Linux companion file is
+missing. A native ARM64 Frame backend, its dependencies and remote transport
+have not been verified. We therefore do not claim that the existing Mac driver
+can control the Frame by passing it a Frame PID or screenshot, and we do not
+make the feature depend on installing that application.
+
+Frame Control's `computer_state` is our own Python implementation over installed
+platform libraries. It sends the probe over SSH stdin, writes no helper to disk,
+and exits after one observation. Missing displays/libraries return explicit
+errors; a 15-second process deadline prevents a stalled accessibility call from
+leaving a probe behind. Window names and accessibility text are untrusted app
+content, never instructions to an agent.
+
+**Recommended next implementation:** an isolated Chromium session with typed
+snapshot/click/type/scroll tools and exact fresh target binding, then individually
+verified native app actions. Use the headset capture to judge appearance, not to
+invent a screen-to-window coordinate transform. Direct tool calls must retain
+approval rules; a generic computer-use tool must not become a route around the
+MCP approval panel, install confirmation or power confirmation.
+
+## Isolated browser input proof
+
+**Verified 2026-09-29, SteamOS 0.4.1, BUILD_ID 20260925.6191901:** a temporary
+Frame Chromium profile loaded a local test page through an SSH reverse tunnel.
+CDP `Input.insertText` entered the test string in its own input. A CDP
+`Input.dispatchMouseEvent` press/release on its own button copied that string
+to the page's result; DOM readback matched exactly. The browser profile,
+loopback forwards and panel log were removed afterward. No user app was typed
+into, no global settings were changed and no third-party helper app was used.
+
+AT-SPI did **not** expose the test page's controls in that same probe, even with
+Chromium's renderer-accessibility flag. It returned the partial Steam-client
+tree instead. The reason remains **unverified**; this is an evidence gap, not
+proof that Frame accessibility cannot work. For a first implementation,
+Chromium's proven page-specific CDP route is stronger than assuming complete
+AT-SPI coverage. This proof does not ship unrestricted click/type tools or
+establish input delivery to SteamVR's menus.

docs/devices.md

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

docs/evidence/linux-vr/2026-09-28.txt

@@ -0,0 +1,47 @@
+Frame client feasibility, 2026-09-28
+SteamOS VERSION_ID=0.4.1 BUILD_ID=20260925.6191901; uname -m=aarch64
+SteamVR: vrserver log reports 2.18.1; process 2256 remained alive across checks.
+Base: dcf9689f6459e576d35fc507eb702ca6b2bf4dad (main).
+Unmodified upstream release APKs; installed with ui/frame_android.py install APK --vr.
+No Linux host attached. No pairing, streamed video, input, audio or worn-headset checks.
+Selected logcat lines only; timestamps in Android logs are UTC.
+
+WiVRn-release.apk
+https://github.com/WiVRn/WiVRn/releases/tag/v26.9
+sha256=1df6649ec77224fcc821af0ab4897222bdf3d7eb6ce6ad636461336724111331
+E/OpenXR-Loader( 1140): Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+I/WiVRn   ( 1140): [2026-09-28 12:07:58.987] [WiVRn] [info] Failed to create OpenXR instance version 1.1.58: XR_ERROR_EXTENSION_NOT_PRESENT
+E/OpenXR-Loader( 1140): Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+I/WiVRn   ( 1140): [2026-09-28 12:07:59.034] [WiVRn] [info] Failed to create OpenXR instance version 1.0.58: XR_ERROR_EXTENSION_NOT_PRESENT
+E/WiVRn   ( 1140): [2026-09-28 12:07:59.035] [WiVRn] [error] Error during initialization: Failed to create OpenXR instance: XR_ERROR_EXTENSION_NOT_PRESENT
+
+alvr_client_android.apk
+https://github.com/alvr-org/ALVR/releases/tag/v20.14.1
+sha256=be68feeb02665e3d69f1cdbcabf38ea4d15c42868a7ec6b5e698dbefee4e4e36
+E/OpenXR-Loader( 1139): Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+I/RustStdoutStderr( 1139): Error [GENERAL | xrCreateInstance | OpenXR-Loader] : LoaderInstance::CreateInstance, no support found for requested extension: XR_KHR_convert_timespec_time
+E/[ALVR NATIVE-RUST]( 1139): ALVR panicked: What happened:
+E/[ALVR NATIVE-RUST]( 1139): panicked at alvr/client_openxr/src/lib.rs:220:10:
+E/[ALVR NATIVE-RUST]( 1139): called `Result::unwrap()` on an `Err` value: ERROR_EXTENSION_NOT_PRESENT
+
+Cleanup verified: both app directories, compatdata directories and Steam shortcuts absent.
+Both test containers stopped and removed. No Steam/SteamVR restart or global setting changes.
+
+Valve release notes fetched from ISteamNews/GetNewsForApp/v2 (appid=250820).
+
+SteamVR Beta Updated - 2.18.1
+https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1844751498219787
+Added tethered Quest support over USB (must be used with Steam Link Beta)
+
+Introducing SteamVR 2.17
+https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1843481262693486
+Adds initial support for USB streaming. Note: Requires new Steam Client Beta.
+Fix crash using Steam Link on Linux when games submit invalid textures.
+Improve streaming recovery when using Steam Link on Linux.
+
+SteamVR Beta Updated - 2.17.8
+https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1842212951314598
+Fix crash using Steam Link on Linux when games submit invalid textures.
+Improve streaming recovery when using Steam Link on Linux.
+Adds initial support for USB streaming.
+USB streaming can be used without WiFi by opting into the Steam Client Beta.

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

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

docs/evidence/mods-2026-09-28.md

@@ -0,0 +1,128 @@
+# Mod feasibility test, 2026-09-28
+
+**Verified observations**, with limits below. Device: `aarch64`, SteamOS
+`VERSION_ID=0.4.1`, `BUILD_ID=20260925.6191901`; Proton version file:
+`1788505046 proton-11.0-2c-arm64`; `vrcmd --stats`: SteamVR `2.18.1`.
+Times below are the Frame's AEST clock.
+
+## Inventory and allowed content
+
+`ssh frame 'python3 - owned' < ui/frame_steam.py` returned 868 games before
+the test. Beat Saber (620980) and Skyrim VR (611670) were absent. Half-Life 2:
+VR Mod – Episode One (2177750) was installed. Hogwarts Legacy (990080),
+Horizon Zero Dawn (1151640) and Horizon Forbidden West (2420110) were listed
+but not installed. The full personal library is not committed.
+
+**Documented, owner report after these tests:** Alex has Beat Saber on a
+Quest 2, which is charging. That copy was not accessed or inspected during
+this test. Its version, transfer path and Frame compatibility remain unknown;
+Steam ownership is still not established.
+
+Gravitas's public Steam metadata reported `is_free: true`, developer Galaxy
+Shark Studios, Windows only. Frame Control's existing Steam helper requested
+its install. Steam first returned free-license state 3, then config state 7,
+then queued the download. The helper did not accept state 3; a later read
+found state 7. The source of that transition was not observed. A later
+`install 1067310` returned `state: installed`. No purchase occurred.
+
+UEVR was downloaded from the author's [1.05 release](https://github.com/praydog/UEVR/releases/tag/1.05),
+not a mirror. `UEVR.zip` was 7,399,455 bytes. Its SHA-256 matched the author's
+`UEVR.zip.sha256` (a UTF-16 text file):
+
+```text
+af4f2f91306802d7ee4e8497d483a547ac8e9a3067dbafb81324100524215d3c
+```
+
+Microsoft's Windows x64 .NET runtime and Windows Desktop runtime 6.0.36 ZIPs
+were downloaded using URLs in the official release metadata. Both SHA-512
+hashes matched that metadata. They were extracted into a test-only user
+directory, not installed globally. No other mod manager was used.
+
+## Half-Life 2 VR: visible setup, not gameplay
+
+Launched the already-installed Episode One using
+`steam steam://rungameid/2177750`. The existing manifest recorded build
+25413453 and a shared base depot from app 658920, build 25413418.
+
+Selected fresh Steam / SteamVR log lines:
+
+```text
+22:07:50 proton waitforexitandrun .../Half-Life 2 VR/ep1vr.exe
+22:08:03 SetApplicationPid: Setting app steam.app.2177750 PID to 27990
+22:08:03 Successfully loaded binding file '.../hlvr/cfg/steamvr/bindings_frame.json' for app 'steam.app.2177750'.
+```
+
+The game's `episodicvr/console.log` reached `Creating VR hand HUD...`,
+`Creating VR weapon HUD...` and `Calibrating VR base position`. It also
+contained missing material/weapon warnings. SteamVR logged a missing
+`frame_hmd` binding as well as the successful controller binding load;
+controller input was not exercised.
+
+`ui/frame_vrshot.py` produced a stereo capture showing the mod's
+“First time setup” and “Dominant hand” dialog. This establishes visible
+startup, not a played level or comfortable performance. The capture includes
+room passthrough and is deliberately not published. The test's `hl2.exe`
+process was terminated; the pre-existing game installation was preserved.
+
+## Gravitas and UEVR: injection unverified
+
+The game was launched through Steam. The injector was then started in the
+same `steamapps/compatdata/1067310` prefix using the shipped
+`SteamLinuxRuntime_4-arm64/_v2-entry-point` and Proton 11 ARM64. The first
+attempt reported:
+
+```text
+Application: UEVRInjector.exe
+Message: You must install .NET to run this application.
+Architecture: x64
+App host version: 6.0.35
+.NET location: Not found
+```
+
+With `DOTNET_ROOT` and `DOTNET_ROOT_X64` pointing at the test-only Windows
+runtime directory, Proton loaded `Microsoft.NETCore.App/6.0.36` and
+`Microsoft.WindowsDesktop.App/6.0.36`. A 25-second launcher timeout was too
+short to establish whether the UI worked. A longer attempt produced a
+625×372 `UEVR` X11 window on display `:1`. This is window creation evidence,
+not a successful injection. That launcher returned exit 0; this was not
+treated as proof that a mod worked.
+
+A combined launch set `PROTON_REMOTE_DEBUG_CMD` to `UEVRInjector.exe` and
+ran Gravitas's `Drop.exe` in the same runtime/prefix. The process
+`SkyArk/Binaries/Win64/Drop-Win64-Shipping.exe` and a 1600×900 window titled
+`SkyArk (64-bit, PCD3D_SM5)` appeared. The launcher exited **1** before an
+injection or stereo game scene could be verified. Output included:
+
+```text
+Proton: Error while copying to ".../windows/system32/amdxcffx64.dll": No such file or directory
+Error [GENERAL | xrCreateInstance | OpenXR-Loader] : xrCreateInstance failed
+X Error of failed request: BadWindow (invalid Window parameter)
+  Major opcode of failed request: 10 (X_UnmapWindow)
+X Error of failed request: XI_BadDevice (invalid Device parameter)
+  Minor opcode of failed request: 28 (X_GetDeviceButtonMapping)
+```
+
+These errors do **not** establish an ARM64/FEX incompatibility. Other work
+was launching apps on the shared Frame. SteamVR's PIDs changed during the
+experiment; `ps` recorded the replacement `vrserver` and `vrcompositor`
+starting at **22:13:03**, corroborated by `steamvr.service` journal startup
+lines. This test did not request a Steam/SteamVR restart. The combined
+attempt ran at 22:14:17–22:14:27, after that restart. A stable, coordinated
+session is needed to distinguish launcher/environment problems from game or
+mod incompatibility.
+
+## Cleanup and remaining checks
+
+- No game executable or OpenVR DLL was replaced. No global runtime or power
+  setting was changed by this test. No R.E.A.L., OpenComposite or Beat Saber
+  payload was installed.
+- Removed the test-only UEVR/.NET directory and downloaded ZIPs from the
+  Frame. Final process checks found no `UEVRInjector.exe`,
+  `Drop-Win64-Shipping.exe`, `ep1vr.exe` or `hl2.exe`. SteamVR was running.
+- Gravitas and its Steam-created prefix remain installed for a repeat test;
+  the pre-existing HL2 VR install remains. Steam may retain normal shader
+  caches, logs and prefix temporary files.
+- Still unverified: UEVR injection and removal, R.E.A.L. releases and
+  permissions, OpenComposite, Beat Saber playback on either build, and our
+  own manager's end-to-end install/uninstall. No installer UI is justified
+  by these results. See the [support table and next checks](../mods.md).

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/file-transfer.md

@@ -0,0 +1,38 @@
+# File transfer and clipboard
+
+The confidence labels are the same as in [ssh.md](ssh.md). Everything here
+depends on SSH working through the `frame` alias from `scripts/connect.sh`.
+
+## Options
+
+| Option | Command | Confidence | Notes |
+|---|---|---|---|
+| **scp / rsync over SSH** | `./scripts/push.sh file-or-dir [dest]`, or `rsync -a --progress x frame:Downloads/` | **Inferred.** SSH is confirmed. Valve recommends WinSCP (SFTP) for Windows ([debugging](https://partner.steamgames.com/doc/steamhardware/steamframe/debugging)), which means SFTP is enabled. | Recommended. The Mac ships `rsync` (newer macOS uses `openrsync`, which supports the flags used here). `rsync` must also exist on the Frame. It's in SteamOS on Deck; if it's missing on the Frame, `push.sh` falls back to `scp`. |
+| SFTP GUI | Finder can't do SFTP. Use Cyberduck / Transmit / ForkLift with `sftp://steamos@frame.local` | Inferred | Good for browsing. |
+| `adb push` | `adb push x /sdcard/Download/` (Lepton) | Confirmed that ADB exists ([adb_lepton](https://partner.steamgames.com/doc/steamhardware/steamframe/adb_lepton)) | Only reaches the Android container's storage. |
+| SteamOS Devkit Client | "Title Upload" | Confirmed (Frame) ([loadgames](https://partner.steamgames.com/doc/steamhardware/steamframe/loadgames)) | For deploying apps and games, not general files. macOS support for the Devkit Client wasn't confirmed. |
+| Syncthing | A Syncthing Flatpak on the Frame (`./scripts/install-apps.sh <flathub-app-id>`), app on the Mac | Guess (which Syncthing Flatpak, and whether it has an aarch64 build, not checked) | Good for an ongoing shared folder. |
+| KDE Connect | KDE Connect on both | Guess | There's a macOS build of KDE Connect, but whether it's present or installable on the Frame wasn't confirmed. It would give you clipboard sync, file send, and remote input. Worth checking on-device. |
+| microSD | Physical card | Confirmed that the slot exists ([Wikipedia](https://en.wikipedia.org/wiki/Steam_Frame)) | Offline fallback. |
+
+## Clipboard
+
+`scripts/paste-to-frame.sh` sends the Mac clipboard (or stdin) to the
+headset's desktop clipboard. You can then paste in the headset with the
+virtual keyboard's paste key or a right-click → Paste.
+
+```sh
+./scripts/paste-to-frame.sh                 # sends pbpaste
+echo "https://example.com" | ./scripts/paste-to-frame.sh -
+```
+
+How it works (verified 2026-09-25). The headset's desktop is a Plasma Wayland
+session nested inside gamescope, with its own runtime dir
+(`/run/user/1000/nested_plasma`) and its own D-Bus bus. `wl-copy` and `xclip`
+aren't installed. The script reads the bus address from `plasmashell`'s
+environment and calls Klipper's `setClipboardContents` with `qdbus6`. The
+desktop has to be running in the headset. It's text only, and pastes over about
+100 KB hit the argument limit, so send big things with `push.sh`.
+
+A simpler fallback: `ssh frame 'cat > ~/clip.txt'` < file, then open it in the
+headset.

docs/frame-control.md

@@ -0,0 +1,187 @@
+# Frame Control in detail
+
+What each part of the app does, how it works, and what has been checked on a
+real Frame. For installing it, see the [README](../README.md#install).
+
+As of 2026-09-25 no other desktop app manages the Frame end to end.
+[Stream Frame](https://streamframe.app/) (macOS 14+, free) records and screenshots
+the headset over SSH. [FrameDrop](https://framedropvr.com) sideloads but is
+Windows-only. Steam Link views the headset.
+
+You can also run the same UI in a browser without the app, from a checkout:
+
+```sh
+./scripts/frame-ui.sh        # macOS: opens http://127.0.0.1:47810 in its own window
+python3 ui/server.py         # anywhere: then open http://127.0.0.1:47810
+```
+
+## Features
+
+The window has five tabs: **Home** (headset view, status, screenshots),
+**Games** (installed games, sideloaded titles, getting games), **Android** (apps,
+the catalogue, display settings, reports), **Tools** (sending files and text,
+Flatpaks, remote and power) and **Devices** (your headsets and their addresses).
+Keys 1–5 switch between them. Files can be dropped anywhere in the window. A
+connection pill in the header always shows which headset, which network this
+computer is on, the address in use or being tried, and each step of connecting
+as it happens; click it for the whole timeline. When the Frame can't be
+reached, a banner says why in plain words, what was tried, and counts down to
+the next try, filling everything in once it answers. Flatpak and Android installs run in the background; the bottom bar
+counts them while they run.
+
+- **Headset view**: what the lenses show, as SteamVR composites it (the room,
+  floating panels, dashboard and controllers). Shows the left eye, like pointing
+  a camera into one lens, or both eyes, as a single shot; saves as PNG. **Live**
+  is 720p video at about 30 fps: `ffmpeg` on the Frame encodes SteamVR's
+  headset-view device (`/dev/video99`) to H.264 over SSH, and the page decodes
+  it with WebCodecs. Live video is one eye; Capture still gets both. The viewer
+  fits the whole frame; zoom with − / + (or scroll, or double-click), drag to
+  pan, `0` to fit, `F` for full screen. Capture uses OpenVR's `IVRScreenshots`
+  API through Python `ctypes` (`ui/frame_vrshot.py`). Nothing extra is
+  installed on the Frame (SteamOS ships `ffmpeg`). **Desktop panel** captures
+  gamescope's flat layer instead.
+- **Screenshots** you take in the headset with Steam's shortcut: browse them and
+  save them to `~/Pictures/SteamFrame`.
+- **Battery** with charging state: charge rate in watts, time to full or empty,
+  charger type and wattage (for example USB-C PD 20 W), and battery temperature.
+- **Status**: storage, memory, temperature, Wi-Fi, uptime, and whether SteamVR,
+  the desktop, Lepton and xrdp are running.
+- **Library** shelf with Steam cover art and a Play button (`steam://rungameid`).
+- **Get games**: every game you own with its Steam Frame rating (Verified,
+  Playable, Unsupported, Unknown). Install on Frame downloads it to the headset
+  with live progress. Search the Steam store with prices and Frame ratings; Buy
+  opens the store page in your browser, or Store on Frame opens it in the
+  headset. It drives the Frame's own Steam client through its DevTools port;
+  see [steam-games.md](steam-games.md).
+- **Volume** and mute (`wpctl`).
+- **Android apps**: search about 4,500 F-Droid apps rated for the Frame, install
+  one with a click as its own Lepton instance (it keeps its data and shows in the
+  Steam library), then launch, stop, test or remove it. **Report an APK** records
+  whether any APK worked (F-Droid or not: pick a file, type a package, or use an
+  installed app). Your reports are saved on your computer and change the verdicts
+  you see. With **Share compatibility results** on (Privacy & updates), they also
+  go to the shared database ([privacy.md](privacy.md),
+  [compat-db/README.md](../compat-db/README.md)). A failed install records
+  itself when the APK was the problem, and after an install the app offers a
+  20-second test. Uses the app's bundled `adb`, or yours if you have one.
+- **Android display**: pick a running Lepton instance (by the app in it) and set
+  its resolution (Native 1920×1080, or Sharp 2560×1440 with density scaled to
+  match), UI scale (Smaller / Default / Larger, or an exact dpi) and text size
+  (0.85–1.3×) over ADB (`wm size`, `wm density`, `font_scale`). Reset puts all
+  three back. Whether the settings survive the app relaunching is untested.
+- **Transfer**: drag and drop files to `~/Downloads`; `.apk` files install as
+  their own Android app. A game's `.zip`, folder or `.exe` becomes a title in
+  the Steam library (Valve's Devkit Game path, with Proton or the Steam Linux
+  Runtime picked from the program's header), listed under **Sideloaded titles**
+  with Launch and Remove; see [sideloading.md](sideloading.md). Send typed text, or your computer's clipboard, to the
+  Frame clipboard.
+- **Mac in the headset** (macOS): show any Mac window, or a whole screen, as
+  its own panel in the headset. Place it with the SteamVR dashboard, click and
+  scroll with the laser, and type on the Mac. Streams hardware H.264 through
+  an SSH tunnel; see [mac-in-headset.md](mac-in-headset.md).
+- **Flatpaks**: install and remove them (quick picks: Moonlight, Firefox, VLC,
+  Remmina).
+- **Devices**: several headsets, each with several addresses (LAN IPs per
+  network, its `.local` mDNS name, its Tailscale IP or MagicDNS name). The app
+  tries them all at once and learns which worked on which network. Add, edit,
+  reorder and test addresses, find a headset on Tailscale or on this network,
+  name your networks, and switch headsets. See [devices.md](devices.md).
+- **One-click tools**: SSH or SFTP in a terminal window, Steam Link, and remote
+  desktop (Windows App on macOS, Remote Desktop on Windows, Remmina or FreeRDP on
+  Linux). Remote desktop first checks that the Frame's xrdp answers on port
+  3389 (Developer Mode turns it on). On Windows it opens a connection file for
+  user `steamos`, because `mstsc /v:` alone offers your Windows account, which
+  xrdp turns away. Accept the warning about the Frame's own certificate, then
+  sign in with the Developer Mode password. Sleep, restart and
+  shut down open a terminal window because SteamOS asks for the sudo password
+  over SSH.
+
+## How it works
+
+`app/` is an Electron shell. It starts `ui/server.py` on a free loopback port
+and shows it in its own window; the server stops when you quit the app. The
+app bundles `ui/`, `scripts/`, `frame/android/`, Valve's `frame/devkit-utils/` and the rated catalogue from
+`apk-catalog/`, plus a standalone Python
+([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. And it bundles KDE
+Connect for the Frame (Valve's arm64 build and five libraries, 3.6 MB,
+[`frame/kdeconnect`](../frame/kdeconnect/NOTICE.md)), which it copies to the
+Frame for the keyboard and trackpad.
+`app/build/fetch-deps.js` downloads all of it, pinned by SHA-256.
+
+The server is Python stdlib only and listens on 127.0.0.1. It rejects requests
+with a non-local `Host` header, and any `/api/` request without a custom
+header, so other websites can't drive it or read captures. Everything reaches
+the headset through its SSH alias (`frame` for the first one), pointed at the
+address that answered with `-o HostName=` (`ui/frame_link.py`, described in
+[devices.md](devices.md)). On macOS and Linux it keeps one
+multiplexed SSH connection open, so status and each capture take about 0.3 s.
+Windows' OpenSSH can't share a connection, so there each request connects on
+its own and the app is a little slower. What differs between the three
+systems lives in `ui/frame_host.py`.
+
+Headset captures are deleted from the Frame as soon as they're copied, because
+they show everything on screen, including anything private. The look follows
+the Steam client: its palette, Motiva Sans (loaded from Valve's CDN), portrait
+library capsules and green Play buttons.
+
+**Verified on the Frame 2026-09-25 (macOS app):** status and charging details,
+both capture modes (headset view while in use, and a blank frame in standby,
+which the UI labels), clipboard, volume, file push, and input validation.
+**Not yet exercised from the UI:** Launch, Flatpak install/remove, APK drop,
+title sideloading (not yet run on a headset at all), and the power buttons. Each of these calls a command that was verified
+separately.
+
+## Per-platform notes
+
+**macOS.** The app reads `PATH` from your login shell, so Homebrew's `rsync`
+and `adb` are used when you launch it from Finder. Set Up Connection runs
+`scripts/connect.sh` in Terminal. The log is at
+`~/Library/Logs/Frame Control/server.log`. The build is ad-hoc signed and not
+notarized: a downloaded copy is quarantined until you run
+`xattr -dr com.apple.quarantine "/Applications/Frame Control.app"`. The first
+time you use them, macOS asks to allow local network access (for SSH) and
+control of Terminal (for SSH and power actions).
+
+**Windows.** `ssh` is Windows' built-in OpenSSH client
+(Settings → System → Optional features, if it's been removed). Set Up
+Connection runs `ui/frame_connect.py` in a console window. Copies use `scp`
+because Windows has no `rsync`. The installer isn't code-signed, so SmartScreen
+warns on first run: choose **More info → Run anyway**. The log is at
+`%APPDATA%\Frame Control\logs\server.log`.
+
+**Linux.** Needs `ssh`, which most desktops have; the `.deb` pulls it in.
+The arm64 build also needs your distribution's `adb` for Android apps, because
+Google publishes no arm64 Linux platform-tools. Set Up Connection runs
+`ui/frame_connect.py` in your terminal emulator (GNOME Terminal, Konsole, xterm
+and others). The log is at
+`~/.config/Frame Control/logs/server.log`. Running `ui/server.py` in a browser
+instead of the app, sending the clipboard needs `wl-clipboard` (Wayland) or
+`xclip` (X11).
+
+## Building
+
+```sh
+cd app
+npm install
+npm start              # run from the checkout without packaging
+npm run dist           # macOS: dist/*.dmg and .zip (Apple Silicon)
+npm run dist:win       # Windows: installer and .zip
+npm run dist:linux     # Linux: AppImage and .deb, x64 and arm64
+```
+
+Pushing a `v*` tag builds all three in GitHub Actions and attaches them to a
+draft release (`.github/workflows/release.yml`). Running copies are offered it
+once you publish it: see [releasing.md](releasing.md).
+
+## AI agents and assistant
+
+**Documented:** [the MCP adapter and assistant panel](agents.md) are Frame
+Control implementations. MCP wraps this HTTP API without API keys. Changes
+require a separate user approval; power also retains its password prompt. The
+assistant uses a user-chosen endpoint and sends nothing until the user opts in
+for a message. Screenshot context is separately opt-in. Model replies cannot
+operate the headset. Tools → Open assistant opens the page; the linked guide
+covers putting it in a Chromium panel on the Frame.

docs/how-the-frame-works.md

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+# How the Frame is put together (field notes)
+
+What we learnt by poking at a real Frame over SSH. Unless a line says
+otherwise, it was **verified 2026-09-25** on SteamOS 0.3.0 (`VARIANT_ID=vr`,
+build 20260922.6101926, kernel 6.18, aarch64). Topic docs go deeper. This page
+is the map.
+
+## The layer cake
+
+```
+SteamVR  (vrserver, vrcompositor, vrdashboard)       ← renders the room + panels
+ └─ gamescope --backend openvr                       ← one SteamVR overlay per app id
+     ├─ Xwayland :0  (Steam UI, games, tagged apps)  ← STEAM_GAME property = app id
+     ├─ Xwayland :1  (STEAM_GAME_DISPLAY_0)
+     ├─ Wayland socket gamescope-0
+     └─ steamos-nested-desktop                       ← "the Linux desktop" panel
+         └─ dbus-run-session startplasma-wayland
+             └─ kwin_wayland 1280×800, Wayland wayland-0, Xwayland :2
+                 └─ plasmashell, Konsole, Dolphin, Flatpaks you open there
+Lepton (Android 11, podman container "lepton-dev") ← its own panel, app 3056000
+```
+
+## Facts worth knowing
+
+| Fact | Where it matters |
+|---|---|
+| The desktop is a **nested** Plasma session: runtime dir `/run/user/1000/nested_plasma`, its own D-Bus bus, `WAYLAND_DISPLAY=wayland-0`, `DISPLAY=:2`. A plain `ssh frame app` can't find it. Copy the env from `plasmashell`'s `/proc/<pid>/environ`. | `run-on-frame.sh`, `paste-to-frame.sh` |
+| The desktop size is hard-coded to 1280×800 in `/usr/bin/steamos-nested-desktop` (read-only rootfs). | [panels.md](panels.md) |
+| gamescope runs with `--virtual-connector-strategy PerAppId`. Each app id becomes a SteamVR overlay `valve.steam.desktopgame.<id>`, which is a panel you can float. Setting `STEAM_GAME` on an X11 window on `:0` makes a new panel. | `panel-on-frame.sh`, [panels.md](panels.md) |
+| Handy gamescope root properties on `:0`: `GAMESCOPE_FOCUSABLE_APPS`, `GAMESCOPE_FOCUSABLE_WINDOWS` (triples: window, app id, pid), `GAMESCOPE_FOCUSED_APP`. Read them with `DISPLAY=:0 xprop -root`. | Debugging panels |
+| `gamescopectl screenshot <file>` (with `WAYLAND_DISPLAY=gamescope-0`) captures gamescope's flat layer. | Frame Control's capture |
+| The **headset view** (both eyes, fully composited: room, panels, dashboard, controllers) comes from OpenVR `IVRScreenshots::RequestScreenshot(VRScreenshotType_Stereo)`. It's callable from `python3` with `ctypes` against `/opt/steamvr/bin/linuxarm64/libopenvr_api.so` as an overlay app. The compositor appends `.png`, writing a 1920×1080 side-by-side image (960×1080 per eye) plus a left-eye preview, in about 0.3s. In standby the frame is blank. `vrcmd --screenshot` and `vrcmd --compositorcmd screenshot_request` wrote nothing, even with `steamvr/rawCapturePath` set. | `ui/frame_vrshot.py` |
+| SteamVR's `steamvr-v4l2cam.service` (`/opt/steamvr/bin/linuxarm64/v4l2cam --output=99`) copies the headset view (the `system.HeadsetView` mirror, one undistorted image) into the v4l2loopback device `/dev/video99` ("SteamVR"), 1920×1080 RGB24. `ffmpeg -f v4l2 -i /dev/video99` reads it at about 70 new frames/s; the first frame read can be black. The Frame's hardware encoder (`iris_encoder`, `/dev/video-enc0`) crashes ffmpeg's `h264_v4l2m2m`, so encode with `libx264 -preset ultrafast -tune zerolatency`: 720p30 takes about 0.7 of a core and 1080p60 about 1.7 (of 8). gamescope also publishes a PipeWire `gamescope` video source, but the Frame's GStreamer has no `pipewiresrc`. **Verified 2026-09-26.** | Frame Control's live video (`/api/stream`) |
+| Battery: `/sys/class/power_supply/max1720x_bat_7-36` gives µV/µA (current is positive while charging), `time_to_full_now`/`time_to_empty_now` in seconds, and `temp` in tenths of °C. The charger shows up as `tcpm-source-psy-…` (`type=USB`, `usb_type=C PD [PD_PPS]`), for example 12 V × 1.67 A. | Frame Control's battery card |
+| `vrcmd --stats` reports `activity_level` (3 = standby). | Telling whether the headset is being worn |
+| **Testing VR apps without wearing the headset.** In standby SteamVR keeps OpenXR sessions hidden, so they render one frame and stop. `vrcmd` (in `/opt/steamvr/bin/linuxarm64`) settings use `section.key`: `vrcmd --set-settings-bool power.pauseCompositorOnStandby 0` and `vrcmd --set-settings-float power.turnOffScreensTimeout 3600`, then `vrcmd --handlewakeup`, keep the compositor running, and the scene app becomes visible. If it stays `visible-blurred`, the Steam dashboard is open: `SteamClient.OpenVR.VROverlay.HideDashboard()` in Steam's `SharedJSContext` (CDP on 8080) closes it. The headset view then captures with `ui/frame_vrshot.py`. Restore afterwards with `--set-settings-bool power.pauseCompositorOnStandby 1` and `--set-settings-float power.turnOffScreensTimeout 5`. The bool setter reads `true` as false, so use 1/0. A Steam launch that stalls in standby at `ShowInterstitials` or `CreatingProcess` (see `console_log.txt`) continues with `SteamClient.Apps.ContinueGameAction(<action id>, "<appid>", "<task>")`. **Verified 2026-09-27.** | Proving VR output remotely, [webxr-chromium.md](webxr-chromium.md) |
+| The SteamVR dashboard has docking: Float in World, Move, Size, Curvature, controller docking, Theater, Multitasking View. **Inferred** from `/opt/steamvr/resources/webinterface/dashboard/` and not yet driven by hand. | [panels.md](panels.md) |
+| 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` |
+| Lepton listens for ADB on the Frame's loopback `5555`, so tunnel it over SSH. It's Android 11 (API 30), 64-bit ARM only, with no `clipboard` service: Compose < 1.11, SDL/Kivy and Godot 4.3 apps crash on launch. | [apks.md](apks.md), `apk-catalog/` |
+| Lepton Development deletes every ADB-installed app when it exits (`clear_baked_app_data "non steamlaunch container"` in `…/common/Lepton/lepton`) unless `LEPTON_NO_CLEANUP` is set. | [apks.md](apks.md) |
+| Any APK can run as its own Lepton instance: run `…/common/Lepton/lepton waitforexitandrun -- app.apk` with `SteamAppId` set and `STEAM_COMPAT_DATA_PATH` under `~/.local/share/Steam`. Data persists and each gets its own container and panel. `frame/android/lepton-app.sh`, `ui/frame_android.py`. | [apks.md](apks.md) |
+| The Steam client runs with `-cef-enable-debugging`, so its UI answers Chrome DevTools on loopback `127.0.0.1:8080`. The `SharedJSContext` page has `appStore` (owned apps), `downloadsStore` and `SteamClient.*`. `steam steam://install/<appid>` over SSH installs an owned game; when the options dialog shows (state 7), `SteamClient.Installs.ContinueInstall()` accepts it. **Verified 2026-09-25** with Balatro and Broforce. The Frame rating is `steam_hw_compat_category_packed >> 8 & 3`. | [steam-games.md](steam-games.md), `ui/frame_steam.py` |
+| Chromium Flatpak 154 has **no immersive WebXR**: `navigator.xr` exists, but `isSessionSupported("immersive-vr")` returns `false`. Web VR180 players (DL8/DeoVR embeds) still play video inline as a flat, pannable view, and their VR button opens a tab on immersiveweb.dev. Forcing it doesn't help. `--enable-features=OpenXR,WebXR --force-webxr-runtime=openxr`, with `/opt/steamvr` and `XR_RUNTIME_JSON` exposed to the Flatpak, still returns `false`. The aarch64 Linux binary has no OpenXR code at all (no `XR_RUNTIME_JSON`, `xrGetInstanceProcAddr` or loader strings), even though `chrome://flags` lists `#webxr-runtime` → OpenXR. **Why (verified against source 2026-09-25):** M154 is the first release that compiles OpenXR on Linux (`enable_openxr` includes `is_linux`, `checkout_openxr` is true in Flathub's tarball, and Flathub's GN args don't turn it off). But `content/services/isolated_xr_device/xr_runtime_provider.cc` only creates an OpenXR device under `ENABLE_OPENXR && IS_WIN`, on 154, 155 and `main`. Nothing on Linux calls the OpenXR code, so the linker drops it. The missing pieces are two unmerged Gerrit CLs (bug 506004811): [8132979](https://chromium-review.googlesource.com/c/chromium/src/+/8132979) wires the provider on Linux (with `kOpenXR` still off by default, so it needs `--enable-features=OpenXR`), and [8441736](https://chromium-review.googlesource.com/c/chromium/src/+/8441736) runs the XR service in a sandbox that allows SteamVR's sockets. The Frame does have an aarch64 runtime: `~/.config/openxr/1/active_runtime.json` → SteamVR `bin/linuxarm64/vrclient.so`. To watch in 3D, use a native player, or a Chromium built with those two CLs ([webxr-chromium.md](webxr-chromium.md)). That build (156.0.8071.0, arm64) reports `immersive-vr` as supported and starts a session that SteamVR takes as its scene app. With the headset on, the WebXR samples scene and three.js's stereo 360 video demo showed in 3D (verified 2026-09-26, seccomp sandbox off). Started with `--remote-debugging-port=9222`, Chromium answers DevTools on loopback. **Verified 2026-09-25**, BUILD_ID 20260922.6101926. | Web video, [panels.md](panels.md) |
+| **DeoVR (Steam app 837380, Windows/Unity) runs immersively** under Proton ARM64 + FEX: Unity's OpenVR XR plugin finds `OpenVR Headset(Steam Frame)` and the `frame_controller`, the GPU shows as Turnip Adreno 750, and AVPro Video decodes through `MF-MediaEngine-Hardware`. It played 7680×3840 and 8192×4096 H.265 VR180 SBS streams in dome/fisheye mode (`FirstFrameReady`). Unity's own `VideoPlayer` (used for grid thumbnails) fails with `0xc00d36bb`, so thumbnail previews stay blank. The first launch takes about 45 s (`ComputeShaders: InitAsync`). Log: `compatdata/837380/pfx/drive_c/users/steamuser/AppData/LocalLow/Deo VR/Deo VR/Player.log`. **Verified 2026-09-25**, BUILD_ID 20260922.6101926. | [vr-video.md](vr-video.md) |
+| **Wolvic (VR browser APK) runs in Lepton against SteamVR's OpenXR**, with limits. The stock Lynx build aborts (`Runtime doesn't support selected swapChain color format`: it wants `GL_RGBA8`), and the stock Quest build fails with `XR_ERROR_API_VERSION_UNSUPPORTED`. Patching `DeviceDelegateOpenXR::GetSwapChainCreateInfo` in the Lynx build's `libnative-lib.so` to `GL_SRGB8_ALPHA8` (0x8C43) and re-signing fixes start-up. The Gecko engine then segfaults in `libxul`. The Chromium-engine build (Lynx v1.3-chromium) browses fine as an immersive app. Its page reports `isSessionSupported("immersive-vr") == true`, and `requestSession` succeeds, running about 36 rAF/s, but the headset shows **black** for WebXR content, or Wolvic's loading spinner that never clears, until the session is ended. Video decodes on the software `OMX.google.h264.decoder`. Tapping the URL bar's selection menu crashes it (no clipboard service). Open URLs with `am start -a VIEW -n com.igalia.wolvic/.VRBrowserActivity -d <url>` over the instance's ADB. DevTools is at `localabstract:content_shell_devtools_remote`. **Verified 2026-09-25**, BUILD_ID 20260922.6101926. | Web VR video, [apks.md](apks.md) |
+| Tailscale runs without root as a userspace `tailscaled` user service (static arm64 build in `~/.local/share/tailscale`, lingering on). In userspace mode, inbound tailnet connections reach the Frame's **loopback**, so every port, including DevTools on 8080, is reachable from the tailnet. **Verified 2026-09-25.** | [tailscale.md](tailscale.md), `scripts/tailscale-on-frame.sh` |
+| **T3 Code desktop runs natively.** The stock release `T3-Code-0.0.42-arm64.AppImage` in `~/Applications/T3CodeDesktop/` starts with no extra setup: glibc 2.39, `libfuse.so.2`, GTK 3, NSS and libsecret are on the image. `panel-on-frame.sh --name t3code-desktop -- '~/Applications/T3CodeDesktop/T3-Code.AppImage'` gives it its own panel (`valve.steam.desktopgame.2000281357`, `--ozone-platform=x11`). Its bundled server listens on `127.0.0.1:3773` and shows up in onboarding as the `frame` computer, with `passwordStore: gnome-libsecret`. The image has no agent CLI and no `node`. Agents run through the LAN CLIProxyAPI (`llm-proxy.lan:8317`, which resolves on the Frame). Claude Code 2.1.283 comes from `claude.ai/install.sh`, and Codex 0.157.1 from the `codex-aarch64-unknown-linux-musl` release tarball, both into `~/.local/bin`. `with-cliproxy` and a mode-600 `~/.config/cliproxyapi/secrets.env` are copied from the Mac. The wrappers `claude-cliproxy` and `codex-cliproxy` (a `-c model_provider=cliproxy`, `wire_api="responses"`, `env_key="CLIPROXY_API_KEY"`) are set as `providers.claudeAgent.binaryPath` and `providers.codex.binaryPath` in `~/.t3/userdata/settings.json`, and T3 picked that up without a restart. Through the wrappers, `claude auth status` reports `loggedIn: true` (`oauth_token`), and both CLIs answered a prompt with `kimi-k3`. `gamescopectl screenshot` captured another layer (the Lepton T3 app) rather than this panel. `DISPLAY=:0 xwd -id <win>` piped to `ffmpeg` captures the window itself (1920×1080). **Verified 2026-09-26**, BUILD_ID 20260922.6101926. | Running T3 Code as a host on the Frame |
+| Power actions need `sudo`, which asks for the Developer Mode password over SSH. | Frame Control's power buttons |
+| **SSH server:** OpenSSH 9.7p1. It offers `publickey,password` (keyboard-interactive is off, PAM on) and also asks `userdbctl ssh-authorized-keys` for keys. OpenSSH ≥ 8.8 rejects SHA-1 `ssh-rsa` signatures by default, so a client whose RSA support is SHA-1 only (the Swift library Citadel, for one) can't log in with the RSA key that devkit pairing installs; use ed25519 (**inferred** from OpenSSH defaults). **Verified 2026-09-27**, BUILD_ID 20260922.6101926. | [iphone.md](iphone.md), `ui/frame_connect.py` |
+| **A Chromium app window on gamescope's `:0` with its own `STEAM_GAME` becomes a panel, even when started over SSH.** `chromium-xr/chrome --ozone-platform=x11 --app=URL --window-size=1280,720` got a 1920×1080 window, and tagging it produced `[Overlays] Created: valve.steam.desktopgame.<id>` in `~/.local/share/Steam/logs/vrwebhelper_systemui.txt`. Chromium XR decoded a 1080p H.264 WebCodecs stream from the Mac at about 60 fps. XTest events sent to `:0` (libXtst through Python ctypes) did not reach the page. The Frame has `libXtst`, `xprop`, `xwininfo`, `curl` and the `C.utf8` locale. **Verified 2026-09-28**, BUILD_ID 20260925.6191901. | [mac-in-headset.md](mac-in-headset.md) |
+| **Streaming video into a panel: what the Frame adds.** Chromium XR decodes H.264 in **software** (1920×1290 at about 9 Mbit/s took 4–6 ms per frame); its GL is ANGLE → zink → Turnip on the Adreno 750, and it logs `GetVSyncParametersIfAvailable() failed`. An idle page's `requestAnimationFrame` runs at about 140 Hz; when the headset is worn or woken, SteamVR picks the 4320×2160 @ 144 Hz mode. **An unworn headset throttles panel apps** whatever they draw: a local canvas page ran at 58 fps for about 6 s, then 28, then about 15 once in standby (vrserver logs `entering standby`, with `power.pauseCompositorOnStandby 1`). `vrcmd --handlewakeup` gave 137–144 fps for about 2 s, then 36. So a panel's frame rate and compositor delay can only be measured while it's worn. `tailscaled` runs with `--tun=userspace-networking` and cost about 8% of a core at 9 Mbit/s (0.5% over the LAN address). Wi-Fi power saving is on (`iw … get power_save`). **Verified 2026-09-28**, BUILD_ID 20260925.6191901. | [mac-in-headset.md](mac-in-headset.md#measuring) |
+| **USB-C networking.** Plugged into a Mac, the Frame is a USB network device: macOS names the port "Steam Frame" (here `en9`, 10.86.200.234/29), and the Frame's `usb0` is 10.86.200.233. Ping is about 0.9 ms, and SSH works with the usual host key (`-o HostName=10.86.200.233 -o HostKeyAlias=<tailscale name>`). Steam's Remote Play discovery also broadcasts over it. **Verified 2026-09-28**, BUILD_ID 20260925.6191901. | Frame Control's Mac stream uses it when present ([mac-in-headset.md](mac-in-headset.md)) |
+| **Tools on the image:** Python 3.12.3, `ffmpeg`, `openssl`, `curl`, `rsync`, `zip`/`unzip`, `flatpak`, `wpctl`, `podman`. **No `adb`.** `steamos` is uid 1000, in `wheel`, and sudoers has `%wheel ALL=(ALL) ALL`, so `sudo -S` takes the Developer Mode password on stdin. **Verified 2026-09-27.** | Running Frame Control's server on the Frame (`FRAME_LOCAL=1`, [iphone.md](iphone.md)) |
+| **Each Lepton instance is a podman container** named `lepton-steamlaunch-<instance id>`, labelled with its ADB port (`podman ps --format '{{.Names}} {{.Labels.adb_port}}'`). `podman exec <container> /system/bin/sh -c '…'` runs Android's shell inside it with no adb at all (used for `pidof` and `logcat` by the app tester). Running `wm size`/`wm density` that way is untested. **Verified 2026-09-27.** | `ui/frame_android.py`, the iPhone app's display settings |
+| **Asleep means off the network.** In standby the Frame stops answering on its LAN address, `frame.local` and Tailscale alike (`Host is down`, `No route to host`, timeouts), and ping fails. It was unreachable for about 2.5 hours until woken. Nothing over SSH can wake it. **Verified 2026-09-27.** | Frame Control's offline banner and retries |
+| **What puts it to sleep is Steam's idle timer**, not logind. The journal shows `steamui_system: Switching to power state: [ k_ESystemPowerState_Sleep ] reason: 'ComputeNextPowerState: active: 3600 < 3600 (k_EACState_Connected)'`, then Steam suspends. SSH work doesn't count as activity. The timers are the client settings `system_idle_suspend_ac_sec` (3600) and `system_idle_suspend_battery_sec` (900); 0 means Never (Settings → Power → Sleep after inactivity). They can be written over DevTools the way the settings page does. logind refuses a `systemd-inhibit --mode=block` sleep lock from an SSH session (`Interactive authentication required`) but accepts one started with `systemd-run --user`. `scripts/keep-awake.sh on|off|status` does both and restores the old timers on `off`. **Verified 2026-09-28**, BUILD_ID 20260925.6191901. Whether Steam's suspend honours the inhibitor on its own is **inferred** (polkit gives `steamos` no `suspend-ignore-inhibit`), not tested. | Keeping the Frame awake for agent work |
+| **Battery at full on a charger** can read `Discharging` at about 0 W (for example 99 %, 0.0 W, USB-C PD 18 W). Treat under 0.5 W on a charger as "not charging", not "draining". **Verified 2026-09-27.** | Frame Control's battery card |
+| **The OS image is downloadable.** Valve's recovery images for the Frame are at `https://steamdeck-images.steamos.cloud/recovery/`. The root filesystem inside is btrfs, and it runs as an SSH test target on ARM64 Linux without the headset (`tests/frame-container/frame-image.sh`). **Verified 2026-09-27.** | [recovery-and-images.md](recovery-and-images.md) |
+| **Boot / recovery menu.** Hold Power ~10 s until the LED goes off, then power on while holding the **AUX button on top of the Power button** (not the volume keys) until a text menu appears. Entries: `Current` (SteamOS-A/B + build), `Previous` (the other A/B slot), `Boot from USB`, `Repair Steam Installation`, `Erase User Data` (factory reset), `ADB mode`, `Battery Ship Mode`. It auto-boots `Current` after a ~15 s countdown. **Volume Up/Down (left side) move, AUX (right side) selects.** For a boot loop, Valve says pick `Previous` (keeps user data); then `Repair Steam Installation`; `Erase User Data` wipes `~` (SSH keys, Tailscale, Flatpaks, T3 setup). Last resort is a full re-image, two ways: (1) USB: write `steamframe-oobe-repair-<build>.img.bz2` to an 8 GB+ USB-C stick (Balena Etcher on the Mac), pick `Boot from USB`, then use "Wipe Device & Install SteamOS" / "Repair SteamOS" (keeps games and personal content) from the recovery desktop; (2) cable/EDL: `steamframe-oobe-repair-qdl-<build>.tar.gz`, run `flash.sh` (Linux) or `flash.cmd` (Windows), then with the Frame off for 10 s hold Power + Vol Up + Vol Down for 10 s and plug it in; it reflashes and reboots. Both images: `https://steamdeck-images.steamos.cloud/recovery/` (build 20260922.5153644, 0.3.0, 3.8 GiB each, no published checksums); local copies in `~/Downloads/steam-frame-recovery/`. File names, checksums and what's inside: [recovery-and-images.md](recovery-and-images.md). Source: Valve's [SteamOS Recovery FAQ](https://help.steampowered.com/en/faqs/view/1B71-EDF2-EB6D-2BB3) and [Installation and Repair FAQ](https://help.steampowered.com/en/faqs/view/65B4-2AA3-5F37-4227), plus a menu photo in [EloiStree/HelloSteamFrame#9](https://github.com/EloiStree/HelloSteamFrame/issues/9). **Inferred** (Valve docs, 2026-09-26); not yet tried on our Frame. | Recovering from a boot loop |
+| **Boot loop cause: the SteamVR health check.** `steamvr.service` runs `/usr/share/deckard/steamvr-health-check`, which appends `frog:glasses:` to `$XDG_RUNTIME_DIR/steamvr-short-session-tracker` on every failed or <10 s SteamVR run. At 3 it runs `steam-health-check --repair-now`, which **deletes all of `~/.local/share/Steam` (games, login, Developer Mode) and `~/.steam`**, keeping only `registry.vdf`. At 4 it also tries `steamos-bootconf set-mode reboot-other` (fails as the user: `bootenv: Permission denied`). SteamVR normally fails 1–2 times per boot while it waits for the Steam client (`SteamAPI_InitEx failed … Steam is probably not running`, then `fatal stalled cross-thread pipe`). Once Steam has been wiped, it has to re-download a ~210 MB client on every boot, so SteamVR keeps failing, Steam keeps getting wiped and the Frame reboots, in a loop. Also, the Steam updater can deadlock at `Installing update...` (main process blocked writing to the `-child-update-ui` process, which is stuck in `drm_syncobj_array_wait_timeout`). Killing only the `-child-update-ui` process lets the install finish (`package/*.installed` appears). **Fix without sudo:** over USB-C ADB (`adb -s frame shell` works as `steamos` while the Frame is looping; SSH is refused once Developer Mode is lost), truncate both `/run/user/1000/steam{,vr}-short-session-tracker` files and `chmod 444` them (the health check then logs `Permission denied` and does nothing; this is tmpfs, so it resets on reboot). Unstick the updater if needed, let Steam finish installing, then hold Power 10 s and start the Frame normally. `systemctl reboot` over ADB needs interactive auth. After the fix, sign in to Steam and turn Developer Mode back on. **Verified 2026-09-26**, BUILD_ID 20260922.6101926, slot B (clean boot: 0 SteamVR failures, SSH and Tailscale back). **Seen again 2026-09-28** on BUILD_ID 20260925.6191901, beta client 1790377368. The Frame rebooted by itself while off the network. At 21:13 the check tried `reboot-other` (`bootenv: Permission denied`) and reset the unpacked Steam install, and the tracker had 15 entries. The tracker fix above, applied over SSH, stopped the resets (the checks then log `Permission denied`), but Steam itself kept exiting about 17 s after each start (34 restarts). Cause not found yet. | Diagnosing a boot loop |
+
+## Debug recipes
+
+```sh
+# Which panels (app ids) exist right now?
+ssh frame 'DISPLAY=:0 xprop -root GAMESCOPE_FOCUSABLE_APPS GAMESCOPE_FOCUSED_APP'
+
+# Watch panels being created
+ssh frame 'journalctl --user -f | grep --line-buffered "\[Overlays\]"'
+
+# gamescope's full flags (in case Valve changes them)
+ssh frame 'tr "\0" " " < /proc/$(pgrep -x gamescope | head -n 1)/cmdline'
+
+# Everything the SteamVR dashboard can say (find hidden features)
+ssh frame 'cat /opt/steamvr/resources/webinterface/dashboard/localization/dashboard_english.json'
+```
+
+## Where the rest lives
+
+- Access and SSH: [ssh.md](ssh.md)
+- Seeing the Frame from the Mac, and the Mac from the Frame: [streaming.md](streaming.md)
+- Files and clipboard: [file-transfer.md](file-transfer.md)
+- Android apps: [apks.md](apks.md)
+- Installing and buying Steam games: [steam-games.md](steam-games.md)
+- Remote access from anywhere: [tailscale.md](tailscale.md)
+- Floating windows in space: [panels.md](panels.md)
+- Recovery images, what's in them, testing without the headset: [recovery-and-images.md](recovery-and-images.md)
+- Frame Control on iPhone (the server running on the Frame itself): [iphone.md](iphone.md)
+- What's still unverified: [open-questions.md](open-questions.md)