# CastFit

- **Event:** [Gemini 3 ハッカソン 東京](https://cerebralvalley.ai/e/gemini-3-tokyo-hackathon)
- **When:** Sat, Feb 21 at 9:00 AM – 10:00 PM (GMT+9)
- **Where:** 東京都渋谷区渋谷 3 丁目 21 - 3 渋谷ストリーム 5F
- **Team:** [hwang yongtae](https://cerebralvalley.ai/u/yongtae)
- **GitHub:** https://github.com/Yongtae723/gemini3-hackathon
- **Demo video:** https://www.youtube.com/watch?v=J1RerzLp5CY
- **Gallery:** https://cerebralvalley.ai/e/gemini-3-tokyo-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/gemini-3-tokyo-hackathon/hackathon/gallery/14

Fancy fitness, no fancy equipment. CastFit projects dynamic workouts onto your walls and floor, automatically calibrating to any room. Your personal Gemini AI coach adjusts difficulty in real time — just you, one projector, and your space.

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Markdown version of https://cerebralvalley.ai/e/gemini-3-tokyo-hackathon/hackathon/gallery/14. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt