Enabled picom through nix config

config/headful.nix

@@ -49,9 +49,20 @@
   };
 
   # List packages to be installed for headful systems
-  environment.systemPackages = with pkgs; [
-    picom
-  ];
+  #environment.systemPackages = with pkgs; [
+  #];
+
+  # Install OpenGL
+  hardware.graphics = {
+    enable = true;
+    enable32Bit = true;
+  };
+
+  # Install picom for transparency.
+  services.picom = {
+    enable = true;
+    backend = "glx";
+  };
 
   # Install additional programs
   programs.thunar.enable = true;

config/omen.nix

@@ -49,12 +49,6 @@
   services.xserver.dpi = 96;
   environment.variables.GDK_SCALE = "0.5";
 
-  # Install OpenGL
-  hardware.graphics = {
-    enable = true;
-    enable32Bit = true;
-  };
-
   # Ignore laptop lid closing when connected to power.
   services.logind.lidSwitchExternalPower = "ignore";