DMX stage lighting control for Mac and iPhone, built as a native Tauri app: a Rust core that talks to the hardware and a Vite + TanStack Router + shadcn/ui front end to drive it. Lux runs a full 512-channel DMX universe with user-defined fixtures, patched into named setups (home / church / work) that sync to your account and work offline.
Output goes to an Enttec OpenDMX USB interface or network DMX over sACN / Art-Net (nodes auto-discovered). Control comes from the app in front of the rig, from another of your signed-in devices — a phone on cellular drives the lights at home over an outbound-only AWS IoT connection, with presence so you know something is listening — or from a Discord bot.
The Rust side keeps the universe continuously synced to the hardware (apps/desktop/src-tauri/src/{buffer,channels,sync}.rs) behind a device abstraction (apps/desktop/src-tauri/src/devices/); the UI talks to it over tauri-typed-ipc (a type-safe IPC crate I wrote), so the Rust↔TypeScript command layer is type-safe end to end. The desktop↔cloud wire is typed the same way: both sides share one contract crate (crates/lux-wire), golden-tested so schema drift fails CI. More in docs/ARCHITECTURE.md.
- App Store (iPhone, iPad, Mac): lux for dmx
- Direct download (macOS): signed + notarized
.dmgfrom the latest release, with in-app updates - Web: lux.johncarmack.com
Setting fixture color live from the desktop UI: the RGBAW tube and the Enttec OpenDMX USB interface (bottom) respond in real time.
Rust · Tauri 2 · tauri-typed-ipc (type-safe IPC) · Vite · TanStack Router · React 19 · shadcn/ui · Tailwind v4 · Enttec OpenDMX USB (DMX512 over serial) · sACN / Art-Net (network DMX) · AWS (Cognito · DynamoDB · IoT Core · Lambda), managed with Terraform
cd apps/desktop
bun run tauri dev- Full 512-channel universe: user-defined fixtures, patching, role-aware color mixing
- Enttec OpenDMX USB output, plus network DMX over sACN and Art-Net (nodes auto-discovered)
- Continuous DMX512 render/sync loop with correct break / mark-after-break framing
- Named setups, cloud-synced per account, offline-first — other devices pick up changes live over an open IoT WebSocket (nudged pull)
- Remote control between your own devices: a signed-in phone anywhere drives the rig at home, presence-aware and last-write-wins, with no ports opened at the house
- Remote control from Discord over AWS IoT
- Type-safe Rust↔TS commands via tauri-typed-ipc
- Signed, notarized, self-updating macOS releases; the same pipeline ships the iOS and Mac App Store builds
Same app, same universe, same setups — signed in, it also runs the rig at home from anywhere.
