# Backend

- [Initialize](/docs/essential-documentation/contribute-to-appflowy/architecture/backend/initialize.md)
- [Events](/docs/essential-documentation/contribute-to-appflowy/architecture/backend/event.md)
- [Delta(WIP)](/docs/essential-documentation/contribute-to-appflowy/architecture/backend/delta.md)
- [Profiling](/docs/essential-documentation/contribute-to-appflowy/architecture/backend/profiling.md)
- [Database](/docs/essential-documentation/contribute-to-appflowy/architecture/backend/database.md)