Opening Frasier on a Fairphone took ~5 s to render the episode list although every episode was cached. Three causes: - resolve_series_view waited for Next Up and resume before returning the episodes, and Next Up was server-first. The episode list now returns as soon as the episodes are in (with_hints); hints that have answered are used, late ones dropped, and the picker falls back to local watch state. Next Up is cache-first like every other query. - The page loaded itself six times per open: onMount plus a mount-time $effect, the reachability effect's first run posing as a reconnect, and a double mount. All triggers now share one coalesced load per item (createCoalescedLoader); refresh triggers get one re-run after it. - The root layout rendered the route in two branches that each rendered children; the page store deciding between them updates a flush late, so navigating Search -> library page mounted the page twice. One element now renders the route and only its classes change. On the device: one load per open, seasons from cache in 14 ms, episodes and the Resume button up in under a second (was ~5 s).

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