---
title: "Flags"
description: "Customize the behaviour of your 01 from the CLI"
---

## CLI Flags

### Server

Specify the server to run.

Valid arguments are either [livekit](/software/livekit-server) or [light](/software/light-server)

```
poetry run 01 --server light
```

### Server Host

Specify the server host where the server will deploy.

Default: `0.0.0.0`.

```
poetry run 01 --server-host 0.0.0.0
```

### Server Port

Specify the server port where the server will deploy.

Default: `10001`.

```
poetry run 01 --server-port 10001
```

### Expose

Expose server to internet.

```
poetry run 01 --expose
```

### Client

Specify the client.

Valid argument is `light-python`

```
poetry run 01 --client light-python
```

### Server URL

Specify the server URL that the client should expect.
Defaults sets the server-host and server-port.

Default: `None`.

```
poetry run 01 --server-url http://0.0.0.0:10001
```

### QR

Display QR code to scan to connect to the server.

```
poetry run 01 --qr
```

### Help

Show this message and exit.

```
poetry run 01 --help
```
