{ ... }:

{

  services.keyd = {
    enable = true;
    keyboards.default = {
      ids = [ "*" ];
      settings.main = {
        "leftcontrol"  = "leftalt";
        "leftalt"      = "leftcontrol";
        "rightalt"     = "rightcontrol";
        "sysrq"        = "rightalt";
        "rightcontrol" = "sysrq";
      };
    };
  };

}