3. edit the configuration file (`inventory/host_vars/<your-domain>/vars.yml`) to your liking. You should [enable one or more services](supported-services.md) in your `vars.yml` file. You may also take a look at the various `roles/**/ROLE_NAME_HERE/defaults/main.yml` files (after importing external roles with `just roles` into `roles/galaxy`) and see if there's something you'd like to copy over and override in your `vars.yml` configuration file.
If you're installing services on the same server using another playbook (like [matrix-docker-ansible-deploy](https://github.com/spantaleev/matrix-docker-ansible-deploy)) or you already have [Traefik](./services/traefik.md) or [Docker](./services/docker.md) installed on the server, consult our [Interoperability](./interoperability.md) documentation.