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

## CLI Flags

- `--server`
  Run server.

- `--server-host TEXT`
  Specify the server host where the server will deploy.
  Default: `0.0.0.0`.

- `--server-port INTEGER`
  Specify the server port where the server will deploy.
  Default: `10001`.

- `--tunnel-service TEXT`
  Specify the tunnel service.
  Default: `ngrok`.

- `--expose`
  Expose server to internet.

- `--client`
  Run client.

- `--server-url TEXT`
  Specify the server URL that the client should expect.
  Defaults to server-host and server-port.
  Default: `None`.

- `--client-type TEXT`
  Specify the client type.
  Default: `auto`.

- `--qr`
  Display QR code to scan to connect to the server.

- `--help`
  Show this message and exit.