# Page Not Found

The URL `12-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)
- [2 🧩 Open the Box](https://bittle.petoi.com/2-open-the-box.md)
- [9 👨‍🏫 Teach Bittle New Skills](https://bittle.petoi.com/9-teach-bittle-new-skills.md)
- [4 🔌 Connect the Wires](https://bittle.petoi.com/4-connect-the-wires.md)
- [8 🕹 Play with Bittle](https://bittle.petoi.com/8-play-with-bittle.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