{ lib, config, pkgs, ... }:
with lib; let
  cfg = config.local;
in
{
  options.local = with lib.types; {
    hostname = mkOption {
      type = str;
    };

    dhcpInterface = mkOption {
      type = nullOr str;
      default = null;
    };
  };

  config = {
    networking = {
      hostName = cfg.hostname;
      useDHCP = false;
      useNetworkd = true;

      interfaces = mkIf (cfg.dhcpInterface != null) {
        "${cfg.dhcpInterface}".useDHCP = true;
      };

      wireguard.enable = true;
    };

    environment.systemPackages = [ pkgs.dhcpcd ];
  };
}