{ config, lib, pkgs, username, ... }:
let
  cfg = config.os.srv.docker;
in
{
  options.os.srv.docker.enable = lib.mkEnableOption "enables the docker container engine";
  config = lib.mkIf cfg.enable {
    virtualisation.docker.enable = true;

    environment.systemPackages = [ pkgs.docker-compose ];

    users.users.${username}.extraGroups = [ "docker" ];
  };
}