# Page Not Found

The URL `docs/basics/user-choices/choose-files` does not exist.

You might be looking for one of these pages:
- [Overview on files](https://novaos.gitbook.io/main/docs/app-development/file-system/overview-on-files.md)
- [File picker](https://novaos.gitbook.io/main/docs/app-development/additional-user-interfaces/file-picker.md)
- [Additional user interfaces](https://novaos.gitbook.io/main/docs/app-development/additional-user-interfaces.md)
- [Setting Keys](https://novaos.gitbook.io/main/docs/app-development/additional-user-interfaces/setting-keys.md)
- [File system](https://novaos.gitbook.io/main/docs/app-development/file-system.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://novaos.gitbook.io/main/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://novaos.gitbook.io/main/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/main/docs/app-development/file-system/overview-on-files.md`)
- Use `Accept: text/markdown` header for content negotiation