# REWIND

- **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:** [Tejaram Chaudhari](https://cerebralvalley.ai/u/simplytejasc)
- **GitHub:** https://github.com/tejaschaudhari131/rewind
- **Demo video:** https://youtu.be/mGOfOYb0ApI
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3667

REWIND watches you assemble furniture and checks each step against the manual, live. A two-stage gate runs SAM 3.1 segmentation plus local part checks, then Muse Spark Open (open weights, via Baseten) audits the frame against the manual step. It fails closed: when unsure it says STOP or 'can't tell', never a fake pass. When a step passes, Muse Wonder ticks it off the manual checklist. Demoed live on a real Zinus bed frame: the bracket with its blank face up is stopped, and the correct face passes and ticks step 7. Inputs: phone camera, photo/video upload, or test images. Everything was built during the hackathon (Oct 26 onward; repo created Oct 28).

## More from Meta Global AI Developer Hackathon

- [Team Interp Boys](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3664)
- [Herman Chan](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3665)
- [The Unlockers](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3666)
- [jairotft](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3668)
- [Sidekick](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3669)
- [prefixgate](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3670)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3667. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt