> ## 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.

# 3. Initialize the configuration

> Create the Toolkit configuration files in Ubuntu on WSL 2 with bin/init.

From the Toolkit directory in **Ubuntu**, run:

```bash theme={null}
bin/init
```

`bin/init` creates three files:

| File | Purpose |
| - | - |
| `config/overleaf.rc` | Container settings, the published port and the data locations |
| `config/variables.env` | Application settings and secrets |
| `config/version` | The application image version |

It also generates `OVERLEAF_INVITE_TOKEN_SECRET` in `config/variables.env`. Keep it, and do not publish this file or commit it to version control.

Keep the version that the Toolkit selects for a new installation. To change the version of an existing instance later, follow [Upgrading your deployment](https://ayakaleaf-pro.mintlify.site/on-premises/maintenance/upgrading-your-deployment.md).

> [!NOTE]
>
> `bin/init` does not overwrite existing configuration. If it reports that files already exist, inspect them before continuing. Keep `config/` and `data/` when restarting or upgrading the instance.

### Next step

Continue with [4. Get Ayakaleaf Pro Images](https://ayakaleaf-pro.mintlify.site/on-premises/installation/using-docker-compose/windows/4.-get-ayakaleaf-pro-images.md).


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