{ lib, config, ... }:
{
  config.systemd.services = lib.mkIf (config.specialisation != { }) {
    cups.serviceConfig = {
      #CapabilityBoundingSet = [
      # ""
      #];
      NoNewPrivileges = true;
      RestrictNamespaces = "pid";
      
      ProtectControlGroups = true;
      ProtectKernelModules = true;
      ProtectKernelTunables = true;
      MemoryDenyWriteExecute = true;
      RestrictSUIDSGID = true;
      SystemCallArchitectures = "native";
      SystemCallFilter = "@system-service";
      LockPersonality = true;
      ProtectHostname=true;
      RestrictRealtime=true;
      
      # PrivateUsers=true;
      # PrivateNetwork=true;
      # RestrictAddressFamilies="AF_UNIX";
      # ProtectSystem=true;
    };
  };
}