hardware: Add rtkit

modules/hardware/desktop.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [ piper ];
+
+  services.ratbagd.enable = true;
+}

modules/hardware/generic.nix

@@ -1,6 +1,7 @@
 { lib, pkgs, ... }:
 
 {
+  environment.systemPackages = [ pkgs.rtkit ];
   # NOTE: This assumes that the devices are x86_64 (cough i686 UEFI cough)
   hardware = {
     enableRedistributableFirmware = true;