# Page Not Found

The URL `extensible-modules` does not exist.

You might be looking for one of these pages:
- [11 🔩 Extensible Modules](https://bittle.petoi.com/11-extensible-modules.md)
- [9 👨‍🏫 Teach Bittle New Skills](https://bittle.petoi.com/9-teach-bittle-new-skills.md)
- [2 🧩 Open the Box](https://bittle.petoi.com/2-open-the-box.md)
- [3 🏗 Assemble the Frame](https://bittle.petoi.com/3-assemble-the-frame.md)
- [6 📐 Calibration](https://bittle.petoi.com/6-calibration.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://bittle.petoi.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://bittle.petoi.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/11-extensible-modules.md`)
- Use `Accept: text/markdown` header for content negotiation