# Reality OS

- **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:** [Satvik Yadav](https://cerebralvalley.ai/u/inertia)
- **GitHub:** https://github.com/satvikydv/reality
- **Demo video:** https://www.youtube.com/watch?v=7z2lf3IXyDg
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3191

"Where did I put it?" For most of us it is a lost minute. For someone living with memory loss it comes back all day, and the person who looks after them cannot always be in the room. A camera watching a home all day is not something most people want either.

Reality OS gives a room a memory from one 20-30 second scan with an ordinary Android phone. No depth sensor, no LiDAR. Muse Spark names what is in view, SAM 3.1 outlines each object, and every object is remembered as a compass direction from where you stood. The memory stays on the user's own computer, scan frames go to Meta's Model API in standard mode (never used for training), and nothing is shared until the person turns sharing on.

What you can do with it:
- Find by meaning, in one room or all of them ("the thing I charge my laptop with", "where did I leave my glasses?"), then follow an AR arrow until it says "Found it".
- See what changed between two scans, judged against how far simply standing in a different spot could shift each object. When the scans line up badly it says "check it" instead of guessing.
- Leave notes on places and objects, and ask the room "what should I take when I leave?".
- With consent, a caregiver's laptop dashboard watches the things that matter (glasses, keys, pills), with the photo and time each was last seen.
- Any AI agent can use the room as a tool through an MCP API.

Every answer says it comes from the last scan, not live, with a confidence. Reality OS organizes and remembers; it is a prototype, not a medical or safety device.

## More from Meta Global AI Developer Hackathon

- [Rentropy](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3188)
- [Gymnos](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3189)
- [Team OwoBook](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3190)
- [CropAdvisor](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3192)
- [Durre Shehwar](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3193)
- [Motion Clone Team](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3194)

---

Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3191. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt