# HomeTwin

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Varun Chari](https://cerebralvalley.ai/u/varunchari)
- **GitHub:** https://github.com/varunchari/homeTwin
- **Demo video:** https://github.com/varunchari/homeTwin/blob/main/docs/hometwin_demo.mp4
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1205

HomeTwin turns a photograph of a room into a controllable, automatable smart home. Today, running a connected home means device lists, menus, and YAML automations. HomeTwin makes the room itself the interface: Meta SAM 3.1 segments a room photo into tappable regions, each bound to a real Home Assistant entity, so tapping a lamp in the photo toggles the real lamp. Automations are authored by typing or speaking ("when the door opens after sunset, turn the string lights on") — Muse Spark turns that into structured AutomationIR, which passes a deterministic validator and compiler and only deploys after your approval. A What-If mode simulates a rule before it goes live, a Design Advisor proposes lighting settings with Muse Image previews, and time-of-day presets, scenes, a Time Machine past-view, and a tap-only guest view round out the demo. The loop closes in the real system, not in a report — the rule deploys to Home Assistant under approval and fires live. Scope, stated honestly: the demo runs the real Home Assistant engine with virtual devices, so a physical rollout swaps entity IDs while the API, compiler, and UI stay the same.

## More from Meta Global AI Developer Hackathon

- [Ronda](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1202)
- [Yula](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1203)
- [George](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1204)
- [FR_OS AI-Perimeter](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1206)
- [rustquantum](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1207)
- [Fair Wear](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1208)

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