# simyo

- **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:** [hyojin sim](https://cerebralvalley.ai/u/simyo)
- **GitHub:** https://github.com/hyojin-shj/DataCash
- **Demo video:** https://youtu.be/o1sGUME0GHw?si=DnUZS-c70msQTBRt
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/393

DataCash turns the phone and Galaxy Watch people already own into a kit that collects home hand data for robots, delivered as privacy-safe five-sense LeRobot data.

1. Synthetic-person replacement: Contributors' faces are replaced with synthetic people created with Muse Image instead of being blurred. SAM 3.1 masks bystanders, children and screens.
2. Glove-free touch: The watch reads grip force from how much of its own vibration the hand absorbs.
3. Five-sense sync:An acoustic beacon aligns watch and video to within 3.7 ms.
4. Labeling accuracy:Muse Spark 1.3 labels every step, and Muse Spark Open 816B re-checks it. Accuracy rose from 36% to 54%.
5. Lower API cost with Glimmer:Muse Glimmer 30B, fine-tuned on human-verified labels, gradually takes over labeling from the API.
6. Lower SAM cost:Clips are pre-screened locally, so SAM 3.1 gets only the queries it needs. Cost dropped 91%.

## More from Meta Global AI Developer Hackathon

- [Zook Team](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/390)
- [CyberBrief](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/391)
- [Delucco](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/392)
- [What's Ahead](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/394)
- [Research Workbench](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/395)
- [Usta](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/396)

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