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

#  

# `prefect dev`

```command theme={null}
prefect dev [OPTIONS] COMMAND [ARGS]...
```

> [!NOTE]
>
> Internal Prefect development.

## `prefect dev build-docs`

```command theme={null}
prefect dev build-docs [OPTIONS] [SCHEMA_PATH]
```

> [!NOTE]
>
> Builds REST API reference documentation for static display.

> **Arguments**
>
> **SCHEMA\_PATH** `string`

## `prefect dev build-ui`

```command theme={null}
prefect dev build-ui [OPTIONS]
```

> [!NOTE]
>
> Installs dependencies and builds UI locally. Requires npm.

> **Options**
>
> **--no-install**
>
> Skip installing npm dependencies before building.
>
> **--include-v2**
>
> Also build the React UI v2 bundle into the Prefect package.

## `prefect dev ui`

```command theme={null}
prefect dev ui [OPTIONS]
```

> [!NOTE]
>
> Starts a hot-reloading development UI.

## `prefect dev api`

```command theme={null}
prefect dev api [OPTIONS]
```

> [!NOTE]
>
> Starts a hot-reloading development API.

> **Options**
>
> **--host**
>
> API host address.
>
> **--port**
>
> API port number.
>
> **--log-level**
>
> Log level for the server.
>
> **--services/--no-services**
>
> Run services in app.

## `prefect dev start`

```command theme={null}
prefect dev start [OPTIONS]
```

> [!NOTE]
>
> Starts a hot-reloading development server with API, UI, and agent processes.

> **Options**
>
> **--no-api**
>
> Exclude the API service.
>
> **--no-ui**
>
> Exclude the UI service.

## `prefect dev build-image`

```command theme={null}
prefect dev build-image [OPTIONS]
```

> [!NOTE]
>
> Build a docker image for development.

> **Options**
>
> **--arch**
>
> The architecture to build the container for. Defaults to the architecture of the host Python. \[default: x86\_64]
>
> **--python-version**
>
> The Python version to build the container for. Defaults to the version of the host Python.
>
> **--flavor**
>
> An alternative flavor to build, for example 'conda'. Defaults to the standard Python base image
>
> **--build-arg**
>
> This will directly pass a --build-arg into the docker build process. Can be added to the command line multiple times.
>
> **--dry-run**
>
> Print the command instead of running.

## `prefect dev container`

```command theme={null}
prefect dev container [OPTIONS]
```

> [!NOTE]
>
> Run a docker container with local code mounted and installed.

> **Options**
>
> **--bg**
>
> Run in background.
>
> **--name**
>
> Container name.
>
> **--api/--no-api**
>
> Start API in container.
>
> **--tag**
>
> Docker image tag.