Phase B.1 of the native-livekit migration. Ships the command surface and
event bridge behind a cargo feature so the default build stays unaffected
while the JS-SDK path keeps running in production.
Rust side
- livekit 0.7 (default tokio runtime, rustls-tls-native-roots) pulled as
an optional dependency; tokio also optional under the same feature
- Feature `rust-livekit` gates everything — off by default; on via
`cargo build --features rust-livekit`
- src-tauri/src/livekit_bridge.rs: LivekitState mutex, connect /
disconnect / send_data commands, event pump for room_state,
participant_joined, participant_left, data_received
- Mic / camera / screen share commands stubbed with explicit
"not implemented" errors so JS callers fail loudly rather than
silently no-op
JS side
- src/lib/nativeLiveKit.ts exposes a NativeRoom class with the same event
/ method shape the CallContext will need, plus a VITE_USE_RUST_LIVEKIT
flag so the adapter can be swapped once the bridge reaches parity
- isRustLivekitAvailable() gates access at both env + runtime layers
Build impact
- Baseline build unchanged (1s incremental, no new deps pulled)
- Feature build initial: ~10min (libwebrtc download + link)
- Feature build incremental: ~1s
- Binary size with feature: +12-20MB vs baseline
Open questions (documented for the next phase)
- Video-frame rendering bridge remains an upstream gap; livekit-rust
exposes NativeVideoFrame but no stable path to expose that as a
MediaStreamTrack inside the WebView
- Audio-only rust path is realistic near-term; full-rust needs either
upstream video-bridge or a native-overlay render window
Phase A of the crypto/livekit rust-native migration.
Rust side
- dryoc crate (pure-rust libsodium-compat, no C toolchain)
- Tauri commands: crypto_random_bytes, crypto_secretbox_encrypt/decrypt,
crypto_box_keypair, crypto_box_encrypt/decrypt, crypto_box_seal/open,
crypto_pwhash — all bit-compatible with libsodium-wrappers-sumo
- Commands registered via invoke_handler in lib.rs
- All IPC payloads base64-encoded to survive serde_json
JS side
- lib/nativeCryptoOps.ts exposes pwhashArgon2id + randomBytesAsync
plus optional secretbox accelerators for future call-site migration
- Native-first, WASM fallback on error or when VITE_USE_NATIVE_CRYPTO is
false / in browser preview
- Argon2id call-sites migrated: secureFileStore.deriveKey and
deviceBackup.deriveKey (covers vault unlock + backup/recovery flows)
Impact
- Vault unlock: ~1200ms → ~200ms (measured locally, Argon2id moderate)
- Per-message AEAD left on WASM-worker path: IPC overhead ~40µs would
dominate any native speedup below ~100µs/op
- WASM stays installed as graceful fallback so browser-preview builds
keep working and a native failure self-heals at runtime
System tray (desktop)
- tauri tray-icon feature + tray with menu (Öffnen/Ausblenden/Beenden)
- Left-click toggles main window; right-click shows menu
- JS emits tray-unread-update event, Rust mirrors into tooltip +
macOS dock badge via set_badge_label
- ConversationsContext wires totalUnread → tray
Window state persistence
- tauri-plugin-window-state (desktop-only target guard)
- Auto-restore size/position/maximized between restarts
Local SQLite message cache
- tauri-plugin-sql hydration of conversation view on mount
- persistMessages after each refresh, deleteCachedMessage on realtime
DELETE, pruneCache keeps latest 1000 per conversation
- Stores plaintext only (same trust boundary as stronghold device
key; cache never leaves the device, E2EE w.r.t. server unchanged)
Web Worker for decryption
- workers/decrypt.worker.ts runs crypto_secretbox_open_easy + utf-8
decode off the main thread with its own libsodium instance
- lib/decryptWorker.ts is a request/response wrapper with inline
fallback when Worker spawn fails
- shared decryptMessages accepts aeadBatchDelegate so key lookup
stays on the main thread while the AEAD loop offloads
Build fix
- Enable tauri tray-icon feature
- Import Listener + Manager traits, clone tray handle for the
event listener, conditional icon attach
File variety (video/pdf/generic), user status with custom message,
auto online/offline, DND gate for ring + notifications, drag-drop +
paste upload, @mentions in groups, link previews, emoji picker,
crash recovery.
byGalax