# SWITCH

- **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:** [Sebastian Fernandez Garcia](https://cerebralvalley.ai/u/sebasfdezg)
- **GitHub:** https://github.com/sebastianfernandezgarcia/switch
- **Demo video:** https://youtu.be/ZQtdctddfSw
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/777

Everyone should make it home. After the fatal accidents at Adamuz and Urda, I asked what I could contribute. SWITCH turns that question into a working decision-rehearsal tool: follow the published evidence, test an alternative and revisit the decision when a new report arrives.

The real-network workspace combines 60,018 IGN railway links with timestamped positions published by Renfe. Ask Meta about an observation or a hypothetical closure. It opens the sources, asks an independent geographic engine to test alternatives and drafts a review alert whose evidence you can inspect.

A separate interactive 3D workspace offers four fictional missions. Conflicting reports, occupied sections and a new maintenance notice change the available plans. The 3D trains, occupancy chart and replay use the same scenario engine and clock; old decisions remain inspectable instead of being silently rewritten.

The public demo supports English and Spanish. Train refresh, navigation and simulation work without model calls; Meta runs only when a visitor asks. Original code is MIT and the repository includes 78 automated tests. Railway geography is not operating authority, and the fictional rehearsal does not control real trains or establish a proven accident-prevention outcome.

Try the live product: https://switch-rail-demo.onrender.com/
Render Free may take about a minute to wake after inactivity. No login or API key is needed from the reviewer.

## More from Meta Global AI Developer Hackathon

- [Music Discovery](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/774)
- [Antevorta](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/775)
- [Marg.ai](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/776)
- [Falcazar](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/778)
- [GreenPoint](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/779)
- [AdProof AI](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/780)

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