switch pc to unstable, use kde 6

modules/graphical/plasma.nix

@@ -6,6 +6,6 @@
     xkbVariant = "";
     enable = true;
     displayManager.sddm.enable = true;
-    desktopManager.plasma5.enable = true;
+    desktopManager.plasma6.enable = true;
   };
 }

modules/hardware/vfio.nix

@@ -0,0 +1,6 @@
+{ pkgs, lib, config, ... }:
+{
+  config = lib.mkIf config.virtualisation.libvirtd.enable {
+    boot.kernelParams = [ "amd_iommu=on" ];
+  };
+}

modules/nix/settings.nix

@@ -1,8 +1,8 @@
-{ inputs, config, ... }:
+{ inputs, config, pkgsVersion, ... }:
 {
   nix.optimise.automatic = true;
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
-  nix.registry.nixpkgs.flake = inputs.nixpkgs;
+  nix.registry.nixpkgs.flake = pkgsVersion;
   nix.nixPath = ["nixpkgs=flake:nixpkgs"];
   home-manager.users.${config.mainUser.name}.home.sessionVariables.NIX_PATH = "nixpkgs=flake:nixpkgs$\{NIX_PATH:+:$NIX_PATH}";
 }