Finish an episode, leave the player with Back, and the season view still put the yellow ring and the "Up next" badge on the episode that had just ended -- and scrolled to it. Nothing records completion locally. storage_update_playback_progress writes a position and never touches is_played, and mirror_user_data carried the server's favourite flag and position but not its played flag, so that column was written by nothing except an explicit local toggle. By the second visit to a series page get_items is a cache hit, so every episode reads back unwatched; meanwhile Jellyfin's Next Up is still one stop-report behind and names the episode that just ended. pick_current_episode had no reason to disagree with either of them. is_finished -- the played flag, or a position at or past MAX_PROGRESS_FRACTION of the runtime, the same 95% threshold that already disqualifies an episode from counting as in-progress -- replaces the bare is_played in the furthest-watched scan and the first-unwatched fallback, and screens the Next Up candidate before it is accepted: the server is briefly behind, the local position is not. The current episode becomes the next one, and the highlight, the badge, the auto-scroll and which season starts expanded all follow it. mirror_user_data now carries is_played alongside the rest, under the same pending_sync = 0 conflict rule, so watched state survives a cache write instead of being dropped -- which is also what puts the checkmarks back in the season list. TRACES: UR-025, UR-062 | DR-264 | UT-239, UT-240

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