> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rigbox.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Deploy one app

> Update a selected app without replacing the rest of the managed application set.

## Prerequisites

Start from a working [multi-app project](/deploy/multi-app) and its existing workspace. Run these commands locally from the root manifest directory.

## Select an app

```bash theme={null}
rig deploy --workspace my-project --app web
```

Use the exact key under `apps`. A partial incremental deployment does not replace the entire deployment scope's app set. Keep the full manifest in place so project identity and relationships remain clear.

## Verify dependencies and results

```bash theme={null}
rig app ls --workspace my-project
rig app-release ls --workspace my-project
```

Exercise the changed app and its interactions with existing dependencies. Deploy required backend/schema changes separately before an app that depends on them; selecting one app is not a coordinated migration of the whole project.

If the selected app conflicts with an unmanaged app or another deployment scope, use a distinct name/port or a new workspace. Do not remove unrelated applications to force an update. For a coordinated app set, use the full [multi-app deployment](/deploy/multi-app).