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

# Set up the CLI and folder

> Step-by-step guide to setting up the Nango CLI and integrations folder.

Set up the [Nango CLI](/understand/concepts/scripts#the-nango-cli) and an [integration folder](/understand/concepts/scripts#integration-folder) to develop custom integrations with Nango.

# Install the Nango CLI

Install the Nango CLI globally:

```bash
npm install -g nango
```

# Create your Nango integrations folder

All your integrations live in a folder called `nango-integrations`. Whether located in your main codebase or a dedicated repository, this folder should be version-controlled.

To initialize your integrations folder (e.g. at the root of your repository), run:

```bash
nango init # Creates `./nango-integrations` folder with some initial configuration
```

# Authenticate the CLI

In an `.env` file in `./nango-integrations`, add the following environment variables:

```bash
NANGO_SECRET_KEY_PROD='<PROD-SECRET-KEY>'
NANGO_SECRET_KEY_DEV='<DEV-SECRET-KEY>'
```

Get your secret keys from the *Environment Settings* tab (toggle between the `Production` and `Development` environment in the left nav bar).

Learn more about the [Nango CLI](/understand/concepts/scripts#the-nango-cli) ([reference](/reference/cli)) and the content of the [integrations folder](/understand/concepts/scripts#integration-folder).

<Tip>
  **Questions, problems, feedback?** Please reach out in the [Slack community](https://nango.dev/slack).
</Tip>