> For the complete documentation index, see [llms.txt](https://bitgpt-2.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bitgpt-2.gitbook.io/docs/infrastructure.md).

# Infrastructure

- [Core Architecture: Hub-and-Spoke](https://bitgpt-2.gitbook.io/docs/infrastructure/core-architecture-hub-and-spoke.md)
- [Distributed Storage Intelligence](https://bitgpt-2.gitbook.io/docs/infrastructure/distributed-storage-intelligence.md)
- [Proxy Layer](https://bitgpt-2.gitbook.io/docs/infrastructure/proxy-layer.md)
- [Small Language Models](https://bitgpt-2.gitbook.io/docs/infrastructure/small-language-models.md)
- [Privacy-Preserving Fine-tuning](https://bitgpt-2.gitbook.io/docs/infrastructure/privacy-preserving-fine-tuning.md)