# Documentation


- [What is Francis](/docs/what-is-francis.md)
- [Core concepts](/docs/concepts.md)
- [Quickstart](/docs/quickstart.md)
- [Writing actors](/docs/writing-actors.md)
- [Actor state](/docs/state.md)
- [Alarms](/docs/alarms.md)
- [Jobs](/docs/jobs.md)
- [Topologies](/docs/topologies.md)
- [Deploying the runtime](/docs/deploying-the-runtime.md)
- [Singleton actors](/docs/singleton-actors.md)
- [Backup and restore](/docs/backup-and-restore.md)
- [Security model](/docs/security.md)
- [Observability](/docs/observability.md)