The plugin versions could not be matched upward without this: both
tauri-plugin-log 2.9.0 and tauri-plugin-updater 2.10.1 require tauri
^2.10, and the tree was on 2.9.5. So the framework moves with them --
tauri 2.9.5 -> 2.11.5, tauri-build 2.5.3 -> 2.6.3, wry 0.53.5 -> 0.55.1
-- and every plugin's Rust crate and npm package is now pinned to the
same version on both sides.
That upgrade broke Android outright, and the breakage is the interesting
part.
Seven call sites in this crate reach JNI through
ndk_context::android_context(), which reads a process-global pair of
pointers. Nothing here ever set that global. `tao` did -- the windowing
layer under wry, three levels below anything this project names in
Cargo.toml. tao 0.34.5 called initialize_android_context() while starting
the activity and our code read what it left behind. tao 0.35.3 keeps the
same two pointers in a private struct and no longer publishes them.
The result, on every launch, was:
PANIC at ndk-context/src/lib.rs:72: android context was not initialized
8: ndk_context::android_context
9: jellytau_lib::run::{{closure}}
Not a crash in our code, and not a change to our code: an undocumented
side effect of a transitive dependency disappeared. Relying on someone
else to populate a global is a dependency that does not appear in
Cargo.toml and gives no warning when it goes.
src-tauri/src/android_context.rs now owns that invariant instead of
assuming it. JNI_OnLoad captures the JavaVM as the shared library loads
-- the earliest moment available, and nothing in tao, wry or tauri
defines one to collide with. The Context is resolved lazily via
ActivityThread.currentApplication() and pinned as a global reference for
the process lifetime, since ndk_context stores a bare pointer and does
not own it. It publishes the Application rather than the Activity:
SecureStorage.initialize() immediately reduces its argument to
applicationContext anyway, and an Application cannot outlive itself the
way a retained Activity would.
Restoring the global keeps all seven callers untouched. Threading a VM
and Context handle through five credential call sites would have been a
larger change with more risk, on the credential path.
Failure now degrades instead of aborting: it is logged and credentials
fall back to the encrypted-file path, which the app already supports.
Verified on a device, R8-minified, not merely compiled:
[INIT] Android JavaVM and Application published to ndk_context
Android SecureStorage initialized successfully
Android Keystore available via SecureStorage
[INIT] Using system keyring for credential storage
[CodecDetection] Detected 7 video codecs: av1,h263,h264,hevc,...
-- the real keystore path, not the fallback, and the app stays up. None
of this is reachable by CI: nothing there runs the app.
Also fixed here, both found the same way:
- `tauri android build --apk true` is now `--apk`. The CLI took a value
until 2.10; from 2.11 the stray `true` is a positional and the build
fails before starting. Three call sites in build-android.sh and one
in build-release.yml -- the latter builds the signed APK, by far the
most-downloaded artifact.
- scripts/build-android.sh ran `npm install` on its clean-build path in
a bun project, ignoring bun.lock and re-resolving the tree. That is
exactly how the plugin crate/package versions drift apart again.
scripts/check-tooling.sh now fails on any npm/yarn/pnpm invocation or
foreign lockfile, and runs in CI.
DR-222, DR-223.

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