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

## CLI Flags

### Server

Runs the server.

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

### 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
```

### Tunnel Service

Specify the tunnel service.

Default: `ngrok`.

```
poetry run 01 --tunnel-service ngrok
```

Specify the tunnel service.
Default: `ngrok`.

### Expose

Expose server to internet.

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

### Client

Run client.

```
poetry run 01 --client
```

### 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
```

### Client Type

Specify the client type.

Default: `auto`.

```
poetry run 01 --client-type auto
```

Default: `auto`.

### 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
```
