> For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt.

# build

The `rs build` command uses [Rsbuild](https://rsbuild.rs/guide/basic/cli#rsbuild-build) to build an application for production.

## Usage

```bash
rs build [options]
```

The command loads the application configuration registered with [`define.app()`](/guide/configuration.md#define-app).

## Options

`rs build` supports the same build options as Rsbuild. See the [Rsbuild CLI documentation](https://rsbuild.rs/guide/basic/cli#rsbuild-build) for details.

Examples:

```bash
# Write output files to the output directory
rs build --dist-path output

# Generate source maps for the output files
rs build --source-map

# Rebuild when files change
rs build --watch
```

## Configuration

Configure the production build through [`define.app()`](/guide/configuration.md#define-app) in the [Rstack configuration file](/guide/configuration.md#configuration-file). It accepts the standard [Rsbuild configuration](https://rsbuild.rs/config/):

```ts title="rstack.config.ts"
import { define } from 'rstack';

define.app({
  output: {
    distPath: {
      root: 'output',
    },
    sourceMap: true,
  },
});
```