# System services
{
  config,
  lib,
  pkgs,
  nomarchyConfig,
  ...
}: {
  # Printing service
  services.printing = lib.mkIf (nomarchyConfig.enablePrinting or true) {
    enable = true;
    browsed.enable = true;
    drivers = with pkgs; [brlaser gutenprint];
  };

  # Avahi for mDNS discovery (network printers)
  services.avahi = lib.mkIf (nomarchyConfig.enablePrinting or true) {
    enable = true;
    nssmdns4 = true;
    openFirewall = true;
  };

  # Mullvad VPN
  services.mullvad-vpn.enable = nomarchyConfig.enableMullvad or false;

  # Syncthing - parameterized user
  services.syncthing = lib.mkIf (nomarchyConfig.enableSyncthing or true) {
    enable = true;
    user = nomarchyConfig.username;
    dataDir = "/home/${nomarchyConfig.username}/.config/syncthing";
    configDir = "/home/${nomarchyConfig.username}/.config/syncthing";
    openDefaultPorts = true;
    guiAddress = "127.0.0.1:8384";
  };

  # Auto-cpufreq for automatic CPU power management
  services.auto-cpufreq = {
    enable = true;
    settings = {
      battery = {
        governor = "powersave";
        turbo = "never";
        scaling_min_freq = 800000;
        scaling_max_freq = 2000000;
      };
      charger = {
        governor = "performance";
        turbo = "auto";
        scaling_min_freq = 800000;
        scaling_max_freq = 4500000;
      };
    };
  };

  # Disable power-profiles-daemon (conflicts with auto-cpufreq)
  services.power-profiles-daemon.enable = false;
}