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

# 2. Familiarize yourself with the Toolkit

### Taking a look around

Now that you have a local copy of the Toolkit, let's take a look at the structure of the repository using the `ls` command.

```bash title="Run this" theme={null}
ls -l
```

<Info>
  The `ls -l` command displays a detailed long listing view of the contents of a directory, providing additional file information such as permissions, ownership and size.
</Info>

If everything was cloned successfully you should see something like this:

```text theme={null}
drwxr-xr-x 3 fry fry  4096 Aug 30 14:16 bin
-rw-r--r-- 1 fry fry  6465 Aug 30 14:16 CHANGELOG.md
drwxr-xr-x 2 fry fry  4096 Sep  6 12:43 config
drwxr-xr-x 5 fry fry  4096 Aug 30 14:22 data
drwxr-xr-x 3 fry fry  4096 Aug 30 14:16 doc
drwxr-xr-x 3 fry fry  4096 Aug 30 14:16 lib
-rw-r--r-- 1 fry fry 34520 Aug 30 14:16 LICENSE
-rw-r--r-- 1 fry fry  1178 Aug 30 14:16 README.md
```

<Info>
  All user-owned configuration files are found in the `config/` directory. This directory is **excluded** from the git revision control system, so it will not be changed by updating the Toolkit.
</Info>

## Repository layout

| Name | Description |
| - | - |
| `bin` | This folder contains a collection of scripts that help you manage your Overleaf server instance. You can read more about these scripts in our Commands section below. |
| `config` | This folder contains your own local configuration files. |
| `lib` | This folder contains base configuration files used by the Toolkit. |
| `data` | By default this folder contains the storage location for MongoDb, Redis and Overleaf. For more information see [Persistent data](https://docs.overleaf.com/on-premises/configuration/overleaf-toolkit/files-and-locations#persistent-data) section below. |

<Warning>
  We recommend **not** changing files outside of the `/config` folder directly. Instead, if you need to make changes, they can be done via environment variables set in either **config/variables.env** or **config/overleaf.rc**.\
  For example, to set the `mongo` service image, rather than editing `lib/docker-compose.mongo.yml` directly, set the image using the environment variable `MONGO_IMAGE` in `config/overleaf.rc`. For more information see the [Toolkit settings](/on-premises/configuration/overleaf-toolkit/toolkit-settings) page.
</Warning>

<Info>
  The Toolkit will **not** change any data in the `config/` directory without your permission.
</Info>


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