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

# Development

> Learn how to preview changes locally

> [!NOTE]
>
> **Prerequisite** You should have installed Node.js (version 18.10.0 or
> higher).

Step 1. Install Mintlify on your OS:

```bash npm theme={null}
npm i -g mintlify
```

```bash yarn theme={null}
yarn global add mintlify
```

Step 2. Go to the docs are located (where you can find `mint.json`) and run the following command:

```bash theme={null}
mintlify dev
```

The documentation website is now available at `http://localhost:3000`.

### Custom Ports

Mintlify uses port 3000 by default. You can use the `--port` flag to customize the port Mintlify runs on. For example, use this command to run in port 3333:

```bash theme={null}
mintlify dev --port 3333
```

You will see an error like this if you try to run Mintlify in a port that's already taken:

```md theme={null}
Error: listen EADDRINUSE: address already in use :::3000
```

## Mintlify Versions

Each CLI is linked to a specific version of Mintlify. Please update the CLI if your local website looks different than production.

```bash npm theme={null}
npm i -g mintlify@latest
```

```bash yarn theme={null}
yarn global upgrade mintlify
```

## Deployment

> [!TIP]
>
> Unlimited editors available under the [Startup
> Plan](https://mintlify.com/pricing)

You should see the following if the deploy successfully went through:

![](https://mintcdn.com/vozpravideo/SiI_Yh-T6FLwtDiN/images/checks-passed.png?fit=max\&auto=format\&n=SiI_Yh-T6FLwtDiN\&q=85\&s=a9a7d31b873116b3d2c6db7441071af2)

## Troubleshooting

Here's how to solve some common problems when working with the CLI.

> **Mintlify is not loading**
>
> Update to Node v18. Run `mintlify install` and try again.

> **No such file or directory on Windows**
>
> Go to the `C:/Users/Username/.mintlify/` directory and remove the `mint`
> folder. Then Open the Git Bash in this location and run `git clone
>     https://github.com/mintlify/mint.git`.
>
> Repeat step 3.

> **Getting an unknown error**
>
> Try navigating to the root of your device and delete the \~/.mintlify folder.
> Then run `mintlify dev` again.

Curious about what changed in a CLI version? [Check out the CLI changelog.](https://vozpravideo.mintlify.site/changelog/command-line)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.