# Reality Git

- **Event:** [GPT-6 Astra Hackathon SF](https://cerebralvalley.ai/e/openai-gpt-6-astra-sf)
- **When:** Tue, Sep 8 at 9:00 AM – 10:00 PM (PDT)
- **Where:** San Francisco, CA
- **Team:** [Olivia Xiaodan Meng](https://cerebralvalley.ai/u/oliviammeng), [Akhilesh Rangani](https://cerebralvalley.ai/u/akhileshrangani)
- **GitHub:** https://github.com/akhileshrangani4/reality-git
- **Demo video:** https://youtube.com/shorts/ac-UMMXDzHs
- **Gallery:** https://cerebralvalley.ai/e/openai-gpt-6-astra-sf/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/openai-gpt-6-astra-sf/hackathon/gallery/19

Reality Git brings the idea of a Git diff into the physical world.
Point your iPhone at an object and tap it or draw around it. The app remembers its original position and visible shape. When you move it, a translucent red ghost marks where it was, while green highlights its observed location. Returning the object clears the diff.
GPT-6 Astra recognizes and reacquires the object, while LiDAR and AR tracking connect that understanding to physical space. Native Gaussian splats visualize the captured surfaces. The current prototype focuses on one object in one room during a single AR session.

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Markdown version of https://cerebralvalley.ai/e/openai-gpt-6-astra-sf/hackathon/gallery/19. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt