# Setting Up Hydrogen

## Configuring Hydrogen

From the Installer's Integrations page, click "Install" under "Hydrogen".

For the hydrogen.yml presented by the installer, edit the file and ensure the following values are set:

- `hydrogen_fqdn` is the FQDN that will be used for accessing hydrogen. It must have a PEM formatted SSL certificate as mentioned in the introduction. The crt/key pair must be in the `CONFIG_DIRECTORY/certs` directory.
- `extra_config` is extra json config that should be injected into the hydrogen client configuration.

You will need to re-run the installer after making these changes for them to take effect.