Split some stuff into fragments

flake.nix

@@ -16,8 +16,6 @@
         modules = [
           ./hosts/slab/configuration.nix
           ./hosts/slab/nvidia-optimus.nix
-          ./roles/base.nix
-          ./roles/me.nix
           ./roles/remote.nix
           ./roles/desktop.nix
         ];

fragments/multimedia.nix

@@ -0,0 +1,7 @@
+{ config, lib, pkgs, ...}:
+{
+  environment.systemPackages = with pkgs; [
+    mpv
+    gimp-with-plugins
+  ];
+}

fragments/sound.nix

@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ...}:
+{
+  # Enable sound.
+  # sound.enable = true;
+  # hardware.pulseaudio.enable = true;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    jack.enable = true;
+  };
+  
+  environment.systemPackages = with pkgs; [
+    qpwgraph
+    pavucontrol
+    ncpamixer
+    pulsemixer
+    easyeffects
+  ];
+}

roles/base.nix

@@ -0,0 +1,7 @@
+{ config, lib, pkgs, ...}:
+{
+  imports = [
+    ../fragments/base.nix
+    ../fragments/me.nix
+  ];
+}

roles/desktop.nix

@@ -1,6 +1,11 @@
 { config, lib, pkgs, ...}:
 
 {
+  imports = [
+    ./base.nix
+    ../fragments/sound.nix
+  ];
+  
   # Enable the X11 windowing system.
   services.xserver.enable = true;
 
@@ -13,18 +18,6 @@
   # Enable CUPS to print documents.
   services.printing.enable = true;
 
-  # Enable sound.
-  # sound.enable = true;
-  # hardware.pulseaudio.enable = true;
-  security.rtkit.enable = true;
-  services.pipewire = {
-    enable = true;
-    alsa.enable = true;
-    alsa.support32Bit = true;
-    pulse.enable = true;
-    jack.enable = true;
-  };
-  
   users.users.nullbite = {
     packages = with pkgs; [
       firefox