Stream your Mac desktop to Snap Spectacles — multi-monitor, virtual displays, low latency.

Demo: https://youtu.be/ucbPuiMp8xM?t=59

Website: https://spec-desk.com

Download (macOS DMG): Latest Release

SpecDesk lets you use your Spectacles as extra monitors for your Mac. It streams your desktop displays in real-time using WebRTC (LiveKit), with ~200-500ms latency.

There are two ways to stream:

• Website (any OS) — Open spec-desk.com in Chrome/Edge, create a room, share your screen. Works on Mac, Windows, and Linux.
• Mac app — A native macOS app with multi-monitor support, built-in virtual display creation, and hardware-accelerated capture via ScreenCaptureKit.

• Multi-monitor streaming — Stream multiple displays at once, positioned correctly in AR based on your display arrangement
• Virtual display creation (Mac app) — Create extra screens directly from the app using native macOS APIs
• Low latency — WebRTC streaming via LiveKit instead of screenshots or RTSP
• Easy pairing — Room codes (ABCD-1234) or QR code scanning. No tunnels, no port forwarding
• Browser fallback — No Mac? Share your screen from any modern browser

┌─────────────────────┐      ┌─────────────────┐      ┌──────────────┐
│  SpecDesk Mac App   │      │  LiveKit Cloud   │      │  Spectacles  │
│  (ScreenCaptureKit) │─────▶│  (WebRTC SFU)    │─────▶│  Lens        │
│                     │      │                  │      │  (WebView)   │
│  Alt: Browser at    │      │                  │      │              │
│  spec-desk.com      │─────▶│                  │─────▶│              │
└─────────────────────┘      └─────────────────┘      └──────────────┘

1. SpecDesk Mac app (or the website) captures your displays and publishes video tracks to LiveKit Cloud
2. Spectacles Lens loads a WebView that connects to the same LiveKit room and displays the video streams
3. For multi-monitor setups, display layout metadata is sent so the Lens positions each screen correctly in 3D space

1. Download the DMG from Releases
2. Open SpecDesk, create a room
3. Enter the room code on your Spectacles Lens
4. Select displays and start streaming

1. Open spec-desk.com/share in Chrome/Edge
2. Create a room and click "Share Screen"
3. Enter the room code on your Spectacles Lens

SpecDesk/
├── lens/                # Spectacles Lens (Lens Studio project)
├── webapp/              # Next.js web application
│   └── .env.example     # Environment variable template
├── mac-app/             # SpecDesk macOS app (Swift/SwiftUI)
├── edge-functions/      # Snap Cloud (Supabase) Edge Functions
│   ├── get-room/        # Room lookup proxy
│   ├── get-livekit-token/ # LiveKit token generator
│   ├── upload-qr-frame/ # QR camera frame upload to Storage
│   └── decode-qr/      # QR code decoder
├── database/            # SQL migrations for Snap Cloud
│   └── migrations/
├── SETUP.md             # Full self-hosting setup guide
└── LICENSE

Want to run your own instance? See SETUP.md for step-by-step instructions covering:

1. Snap Cloud (Supabase) — Database + Edge Functions
2. LiveKit Cloud — WebRTC streaming
3. Vercel — Webapp hosting
4. Lens Studio — Configuring the Lens
5. macOS app — Building from source

• Spectacles: Snap Spectacles (5th Gen)
• Mac app: macOS 12.3 (Monterey) or later
• Website: Chrome, Edge, or any WebRTC-capable browser

Contributions are welcome! Feel free to open issues or submit pull requests.

MIT — see LICENSE