# Tini

- **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:** [TiNi Do](https://cerebralvalley.ai/u/TiniDo)
- **GitHub:** https://github.com/dothanhtin28/SecondLoop
- **Demo video:** https://youtu.be/Xu0qbGLr0Zk
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/4834

SecondLoop helps community groups find reusable surplus items that fit their needs and collection constraints.

Users describe an intended outcome, such as creating a community garden using supplies they can collect by scooter. The prototype combines map-based listings with a backend Meta AI tool-calling integration that searches inventory, checks constraints, and creates match proposals.

Backend code validates availability, quantities, straight-line distance, and known transport limits. Missing measurements remain unknown. Users explicitly confirm pickup requests, then track donor confirmation, scheduling, collection, completion with a demo code, or cancellation with history preserved.

Built with React, ASP.NET Core, PostgreSQL/PostGIS, and Leaflet, SecondLoop uses synthetic demo data and clearly labeled demo identities. A deterministic Demo Mode supports demonstrations when Meta API credentials are unavailable; live inference verification remains pending.

## More from Meta Global AI Developer Hackathon

- [Concept Collider](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/4831)
- [Vigil](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/4832)
- [Last Minute Commit](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/4833)
- [Spidey Sense](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/4835)
- [Jazzy Fox](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/4836)
- [Harbor](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/4837)

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