# Architecture

One server runtime, several ways to use it.

URL: /docs/architecture

## Runtime [#runtime]

The Bun/Elysia API owns authorization, publication state, scheduling and execution.
SQLite persists application state and durable work. The standard production image
also serves the built Studio assets, so the browser client does not require a
second running service.

Provider authorization and credentials stay on the server. A client submits work
through the API; it does not run the publication worker itself.

## Clients [#clients]

Studio is a React application using TanStack Router. The Bun CLI calls the same
server through the typed client in `packages/client`. Project roles and API-key
limits apply at the server boundary regardless of which client initiated a request.

The public website and documentation are a separate Next.js/Fumadocs app. They
export static files and do not connect to the application database.

## Storage [#storage]

The database and media store are separate responsibilities. Local and S3 media
adapters implement the same narrow storage contract. Originals remain the files
used for publication; generated previews serve display needs.

See [apps and packages](/docs/packages/) for the code map and
[Self-hosting](/docs/self-hosting/) for deployment instructions.