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

# Backend

- [Initialize](https://docs.appflowy.io/docs/documentation/software-contributions/architecture/backend/initialize.md)
- [Events](https://docs.appflowy.io/docs/documentation/software-contributions/architecture/backend/event.md)
- [Delta(WIP)](https://docs.appflowy.io/docs/documentation/software-contributions/architecture/backend/delta.md)
- [Profiling](https://docs.appflowy.io/docs/documentation/software-contributions/architecture/backend/profiling.md)
- [Database](https://docs.appflowy.io/docs/documentation/software-contributions/architecture/backend/database.md)