# PA Cafe Cart Showroom (小屋購物車)

- **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:** [Dylan Lu](https://cerebralvalley.ai/u/dnplus)
- **GitHub:** https://github.com/dnplus/pacafe-cart-showroom
- **Demo video:** https://youtu.be/5ulq7K54JaA
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1724

PA Cafe Cart Showroom (小屋購物車): a cozy 3D room where the things your Muse shopping agent saves to your cart show up on shelves behind a counter, one item per slot. The register shows the total, and the shelves fill up as you hoard.

It is built around social play and gamification: friends can visit your shared showroom via a share link with hidden, range or exact price modes; parcels are unboxed before items land on the shelf; and a promo video of your haul can be auto-generated. (Price comparison is only a future idea.)

Built on Cloudflare Workers + Durable Objects with a React/Three.js frontend. Solo indie project by Delong Lu (GitHub: dnplus), open source.

## More from Meta Global AI Developer Hackathon

- [SocialPilot AI](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1721)
- [MadsMen](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1722)
- [LEGO from My Bricks](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1723)
- [gwenlake](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1725)
- [NirmanOs](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1726)
- [The Ground](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1727)

---

Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1724. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt