DR-235 phase 3. Every video renderer is native now: mpv on Linux and Windows, ExoPlayer on Android, all drawing behind the transparent webview. The HTML5 <video> path is gone, not bypassed: - Frontend: hls.js, Html5PlayerAdapter and its compatibility shim, the createAdapter factory, streamTransport, hlsRecovery, timeTracking, videoFit, the <video>/<track> markup and every element handler in VideoPlayer (3277 -> 2144 lines), the experimentalNativeVideo store and its Settings toggle, webviewVideoFallback/supportsNativeVideo, and the setHtml5VideoState PiP bridge call. NativePlayerAdapter is the one video adapter; webview audio gets its own adapter kind. - Rust: use_html5 dropped from player_seek_video, player_switch_audio_track and player_set_stream_quality with the Html5* strategies and ReloadStream responses; use_html5_element and VideoBackend dropped from PlayerStatus; player_play_item always loads the backend (set_current_item removed); Capabilities::webview removed; the WebKitGTK GStreamer/VAAPI setup (and its gst-inspect spawn) removed. - Android: the HTML5 video state in PictureInPictureManager and ScreenWakeManager, and the bridge method feeding it. - CSP: connect-src loses http:/https: and worker-src loses blob: - both existed for hls.js; with it gone they were only an exfiltration channel and a blob worker for injected script. A test now keeps them out. mpv takes over what the <video> element did (mpv_tracks, UT-275): subtitles are the WebVTT list the play request carries, queued on sub-files and selected by position in that list, starting off; audio tracks are selected by position in the file; sid/aid are reset before each load. Without this, Linux video had no subtitle selection and a direct-play audio switch failed since mpv became its renderer. Verified: Rust 948 passing, and the same 948 cross-compiled for Windows under wine against the shipped DLL (track tests included); frontend 1111 passing; aarch64 debug APK builds. Lint warnings 158 -> 146, CI ratchet tightened to match. Not yet seen on Windows hardware.

JellyTau
A cross-platform Jellyfin client built with Tauri, SvelteKit, and TypeScript.
Business logic lives in a Rust backend; a UI-rich Svelte frontend handles presentation and talks to it over Tauri's IPC. Targets Linux (libmpv) and Android (ExoPlayer).
Getting Started
This project uses bun as its package manager.
# Activate the Rust environment (fish shell)
source "$HOME/.cargo/env.fish"
# Install dependencies
bun install
# Run in development
bun run tauri dev
# Type-check the frontend
bun run check
# Build for Linux
bun run tauri build
# Build for Android
bun run tauri android build
For the full set of build, test, and Android helper scripts, see scripts/README.md.
Documentation
| Topic | Location |
|---|---|
| Architecture overview & subsystem docs | docs/architecture/ |
| Requirements, traceability & technical debt | docs/requirements.md |
| Build & release process | docs/build/build-release.md |
| Docker builds | docs/build/docker.md |
| Traceability tooling & CI | docs/traceability.md, docs/traceability-ci.md |
| Release checklist | docs/release-checklist.md |
| UX flows | docs/ux-flows.md |
| CI operations (builder image, secrets, runner) | docs/build/ci-operations.md |
Contributing
CONTRIBUTING.md covers the setup, the gates a change has to pass, and the two rules that catch people out (bug fixes start with a failing test; Jellyfin's taxonomy stays in Rust). Please also read the Code of Conduct.
Found a security problem? Do not open an issue — see SECURITY.md.
Verifying a download
Every release publishes SHA256SUMS covering all of its artifacts, plus an SBOM
of what went into the build:
sha256sum -c SHA256SUMS
Desktop builds update themselves from Settings → Updates, verifying each payload against JellyTau's signing key before installing. Android installs are handled by the system installer, so the app links to the releases page instead.
Recommended IDE Setup
VS Code + Svelte + Tauri + rust-analyzer.
License
MIT