Remove unused services

nixos/base.nix

@@ -67,10 +67,6 @@
     #   nvidiaWayland = true;
     # };
     desktopManager.gnome.enable = true;
-    displayManager.sddm = {
-      enable = true;
-      autoNumlock = true;
-    };
     windowManager.bspwm.enable = true;
 
     # Configure keymap in X11

nixos/intel.nix

@@ -20,6 +20,13 @@
     intel-media-driver
   ];
 
+  services.xserver = {
+    displayManager.gdm = {
+      enable = true;
+      wayland = true;
+    };
+  };
+
   # This runs only Intel and nvidia does not drain power.
   ##### disable nvidia for a very nice battery life.
   hardware.nvidiaOptimus.disable = true;

nixos/nvidia.nix

@@ -10,7 +10,7 @@
       ./base.nix
     ];
 
-  boot.initrd.kernelModules = ["i915"];
+  boot.initrd.kernelModules = [ "i915" ];
 
   hardware.cpu.intel.updateMicrocode = config.hardware.enableRedistributableFirmware;
 
@@ -21,8 +21,14 @@
     intel-media-driver
   ];
 
+  services.xserver = {
+    videoDrivers = [ "nvidia" ];
+    displayManager.sddm = {
+      enable = true;
+      autoNumlock = true;
+    };
+  };
 
-  services.xserver.videoDrivers = [ "nvidia" ];
   hardware.nvidia.prime = {
     offload.enable = false;
     sync.enable = true;