Progress rewrite further

modules/nixos/hardware/audio/default.nix

@@ -1,6 +1,7 @@
 { ... }:
 
 {
+  security.rtkit.enable = true;
   services.pipewire = {
     enable = true;
     alsa = {

modules/nixos/hardware/cpu/amd/default.nix

@@ -0,0 +1,11 @@
+{ pkgs, ... }:
+
+{
+  boot = {
+    kernelModules = [ "kvm-amd" ];
+    extraModprobeConfig = "options kvm_amd nested=1";
+  };
+
+  hardware.cpu.amd.updateMicrocode = true;
+  hardware.firmware = with pkgs; [ linux-firmware ];
+}