# Bay

> A self-hosted application server for Alepha apps, with TLS, rollback and process isolation handled for you.

## Guides

- [Bay, every page in one file](https://latest.alepha.dev/bay/llms-full.txt): 9 pages, ~19k tokens.
- [Introduction](https://latest.alepha.dev/bay/docs/guides-introduction.md): Bay is a self-hosted application server for Alepha apps: one static Go binary that is the reverse proxy, the deployer, the supervisor and the backup schedule for every app on a machine you own.
- [Installation](https://latest.alepha.dev/bay/docs/guides-installation.md): Install Bay on a Linux host in five steps: the binary, a systemd unit, a check, and the step people miss, granting a human or a CI job the right to deploy.
- [Deploying apps](https://latest.alepha.dev/bay/docs/guides-deploying.md): What happens on the host when an artifact reaches Bay: how an app is named and routed, what Bay provisions for it, how a new release replaces the old one, and when Bay rolls it back on its own.
- [Operating](https://latest.alepha.dev/bay/docs/guides-operating.md): Day-to-day commands on a Bay host: what is running and how healthy it is, an app's logs and environment, taking an app out of service, runtime images and per-app isolation.
- [Backups](https://latest.alepha.dev/bay/docs/guides-backups.md): Bay snapshots every app's SQLite database to an S3-compatible bucket on a schedule, verifies each snapshot, prunes old ones, and restores the latest one on its own when an app is redeployed onto...
- [Stacks](https://latest.alepha.dev/bay/docs/guides-stacks.md): A stack is a Compose file Bay runs as one unit: an Alepha app plus the services it needs (Postgres, Redis, Keycloak, a queue), each environment isolated from the others, with routes, variables and...
- [Lore connector](https://latest.alepha.dev/bay/docs/guides-lore-connector.md): Enrol a Bay host as an estate of a Lore instance, so Lore can show what the machine runs and send it a small, fixed set of commands, without opening any port on the host.
- [Security model](https://latest.alepha.dev/bay/docs/guides-security.md): What can reach a Bay host, who may drive it, and how one hosted app is kept from another and from the machine.
- [CLI reference](https://latest.alepha.dev/bay/docs/guides-cli-reference.md): Every bay command, grouped by what it acts on, with its flags and defaults. bay with no arguments prints the same list from the binary itself, which is the final word for the version you run.

## Optional

- [Alepha](https://latest.alepha.dev/llms.txt): The TypeScript framework Bay is built on, and its documentation index.