# Rally

- **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:** [William Chandra](https://cerebralvalley.ai/u/WilliamChandra)
- **GitHub:** https://github.com/williamchand/Rally-Paws
- **Demo video:** https://youtu.be/03bK57jP3Dc
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/291

Rally is an AI activity coach that turns plain language into logged workouts.
Problem: fitness apps make logging tedious (endless forms), give generic plans,
and aren't fun — so people quit. Rally fixes this with a conversational coach:
say "I played tennis for an hour yesterday evening" and it streams a reply,
drafts the session with a transparent calorie estimate, and saves it on confirm
— nothing saves until the user taps Confirm. It also drafts training weeks,
finds and books courts, runs friend matchups with shareable invite links, and
grows a virtual pet that reacts to real activity (streaks, variety, rest). All
personal data stays on-device in the browser; the server keeps no activity
history. Live at https://rally-7wwb.onrender.com/ (FastAPI backend + React PWA,
deployed on Render; see the 3-minute demo video).

## More from Meta Global AI Developer Hackathon

- [AutoReply Pro](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/288)
- [Norba.io engineering](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/289)
- [Skuuy](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/290)
- [Nova 2](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/292)
- [cryptobandit](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/293)
- [Kokobubu](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/294)

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