replace plasma with gnome on laptop

modules/nixos/features/gnome.nix

@@ -0,0 +1,53 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  feature = "gnome";
+in
+{
+  config = lib.mkIf config.${feature}.enable {
+    services = {
+      desktopManager.gnome.enable = true;
+      displayManager.gdm.enable = true;
+    };
+
+    # https://discourse.nixos.org/t/howto-disable-most-gnome-default-applications-and-what-they-are/13505
+    environment.gnome.excludePackages = with pkgs; [
+      # baobab # disk usage analyzer
+      # cheese # photo booth
+      # eog # image viewer
+      epiphany # web browser
+      gedit # text editor
+      # simple-scan # document scanner
+      totem # video player
+      yelp # help viewer
+      evince # document viewer
+      # file-roller # archive manager
+      geary # email client
+      seahorse # password manager
+
+      # these should be self explanatory
+      gnome-calculator
+      gnome-calendar
+      gnome-characters
+      gnome-clocks
+      gnome-contacts
+      gnome-font-viewer
+      gnome-logs
+      gnome-maps
+      gnome-music
+      gnome-photos
+      # gnome-screenshot
+      # gnome-system-monitor
+      gnome-terminal
+      gnome-weather
+      # gnome-disk-utility
+      gnome-connections
+    ];
+  };
+
+  options.${feature}.enable = lib.mkEnableOption "enables ${feature}";
+}

modules/nixos/features/plasma.nix

@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 let
   feature = "plasma";
 in
@@ -11,6 +11,12 @@ in
         wayland.enable = true;
       };
     };
+
+    environment.systemPackages = with pkgs.kdePackages; [
+      skanlite
+      ktorrent
+      kzones
+    ];
   };
 
   options.${feature}.enable = lib.mkEnableOption "enables ${feature}";