# DryLine

- **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:** [Chi Lin Kuo](https://cerebralvalley.ai/u/Pungu)
- **GitHub:** https://github.com/KCL1104/dryline
- **Demo video:** https://www.youtube.com/watch?v=iA-fGCT8pjE
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1920

DryLine is an AI-native digital twin for production lines. Large factories already run digital twins, but changing one still takes a specialist, so most teams never get to ask "would a fourth tester help?" before they buy it.

In DryLine you describe a change in plain words, or start from a photo or floor plan of the line. Meta's models draft the change as a proposal; the server validates it and sets its risk, and a person approves it. A deterministic discrete-event simulation runs the baseline and every what-if, the server ranks them on the same comparison, and the baseline and the what-if play side by side in 2D and 3D on one clock, moved only by each run's sampled trace.

On request, the AI tests ideas by itself: Muse Wonder picks each step, DryLine carries it out within fixed limits (3 what-ifs, 4 runs, 20 minutes), and everything the AI makes is labelled; it never publishes. When Muse Spark explains a result, DryLine checks every number it writes against the computed results, and an answer that does not match is not kept. A proof panel shows each run's fingerprints: same inputs, same result.

It ships with an electronics assembly-and-test line and four more templates (sneaker factory, bread bakery, corrugated box plant, distribution center), all on synthetic data. Live demo: https://dryline.up.railway.app

Judge account:
judge@geminus-demo.invalid  (Geminus was DryLine's working name)
tL.dBo23NnqGNtAspbH-99vj

Meta's models propose. DryLine checks. A person decides.

## More from Meta Global AI Developer Hackathon

- [Alpher](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1917)
- [FirstLight](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1918)
- [Mind Over Model](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1919)
- [Agent Readiness](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1921)
- [Desire-By-Design](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1922)
- [Lourdus](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1923)

---

Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1920. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt