Option: added active desktop option which allows kde to be primary desktop environment.

home/services/udiskie.nix

@@ -1,6 +1,6 @@
-{
+{osConfig, ...}: {
   services.udiskie = {
-    enable = true;
+    inherit (osConfig.services.udisks2) enable;
     tray = "never"; #NOTE: Don't have a bar (yet?)
   };
 }

home/shell/default.nix

@@ -6,7 +6,6 @@
     ./other.nix
     ./repl
     ./starship.nix
-    ./transfer.nix
     ./yazi.nix
     ./zoxide.nix
   ];

home/wayland/default.nix

@@ -5,7 +5,7 @@
   ...
 }: let
   inherit (lib) mkIf;
-  cfg = osConfig.niksos.desktop.hyprland;
+  cfg = osConfig.programs.hyprland.enable;
 in {
   imports = [
     ./fuzzel.nix

home/wayland/fuzzel.nix

@@ -5,7 +5,7 @@
   ...
 }: {
   programs.fuzzel = {
-    enable = osConfig.niksos.desktop.hyprland;
+    inherit (osConfig.programs.hyprland) enable;
     settings.main = {
       launch-prefix = "${lib.getExe pkgs.uwsm} app --";
     };

home/wayland/hyprland/default.nix

@@ -15,7 +15,7 @@ in {
   ];
 
   wayland.windowManager.hyprland = {
-    enable = osConfig.niksos.desktop.hyprland;
+    inherit (osConfig.programs.hyprland) enable;
     settings = {
       env = [
         "QT_WAYLAND_DISABLE_WINDOWDECORATION,1"

home/wayland/hyprlock.nix

@@ -6,7 +6,7 @@
   inherit (config.lib.stylix.colors) base05;
 in {
   programs.hyprlock = {
-    enable = osConfig.niksos.desktop.hyprland;
+    inherit (osConfig.programs.hyprland) enable;
 
     settings = {
       general = {

home/wayland/mako.nix

@@ -1,6 +1,8 @@
-{osConfig, ...}: {
+{osConfig, ...}: let
+  inherit (osConfig.niksos) desktop;
+in {
   services.mako = {
-    enable = osConfig.niksos.desktop.hyprland;
+    inherit (osConfig.programs.hyprland) enable;
     settings.defaultTimeout = 5000;
   };
 }

system/desktop/default.nix

@@ -21,8 +21,20 @@ in {
     enable = mkEO "enable desktop related programs (+home manager).";
     apps = mkEO "extra bloat.";
     games = mkEO "gaming related programs";
+
     hyprland = mkEO "enable hyprland related programs.";
     kde = mkEO "enable kde specialisation.";
+    activeDesktop = lib.mkOption {
+      type = lib.types.enum ["hyprland" "kde"];
+      description = "What desktop should be the default, other enabled desktops will be specialized.";
+      default =
+        if cfg.hyprland
+        then "hyprland"
+        else if cfg.kde
+        then "kde"
+        else "hyprland";
+      example = "hyprland";
+    };
   };
 
   config.assertions = mkIf (cfg.hyprland

system/desktop/greetd.nix

@@ -5,21 +5,9 @@
 }: {
   config = lib.mkIf config.niksos.desktop.enable {
     # greetd display manager
-    services.greetd = let
+    services.greetd = {
-      session = {
-        command = lib.mkDefault "${lib.getExe config.programs.uwsm.package} start hyprland-uwsm.desktop";
-        user = "jsw";
-      };
-    in {
       enable = true;
-
+      settings.terminal.vt = 1;
-      settings = {
-        terminal.vt = 1;
-        default_session = session;
-        initial_session = session;
-      };
     };
-
-    programs.uwsm.enable = config.niksos.desktop.hyprland;
   };
 }

system/desktop/hyprland.nix

@@ -1,16 +1,37 @@
 {
-  config,
-  pkgs,
   lib,
+  pkgs,
+  config,
   ...
 }: let
-  cfg = config.niksos.desktop.enable && config.niksos.desktop.hyprland;
+  inherit (config.niksos) desktop;
+  cfg = desktop.enable && desktop.hyprland;
+  active = cfg && desktop.activeDesktop == "hyprland";
+  ifActive = x: lib.mkIf active x;
 in {
-  config = lib.mkIf cfg {
+  specialisation.de.configuration =
-    programs.hyprland = {
+    lib.mkIf cfg
+    && !active {
+      niksos.desktop.activeDesktop = lib.mkForce "hyprland";
+    };
+
+  programs = ifActive {
+    hyprland = {
       enable = true;
       withUWSM = true;
     };
-    environment.sessionVariables.NIXOS_OZONE_WL = "1"; # Makes electron apps use wayland.
+    uwsm.enable = true;
   };
+
+  services.greetd.settings = let
+    session = {
+      command = "${lib.getExe config.programs.uwsm.package} start hyprland-uwsm.desktop";
+      user = "jsw";
+    };
+  in
+    ifActive {
+      default_session = session;
+      initial_session = session;
+    };
+  environment.sessionVariables.NIXOS_OZONE_WL = ifActive "1"; # Makes electron apps use wayland.
 }

system/desktop/plasma6.nix

@@ -4,25 +4,28 @@
   config,
   ...
 }: let
-  cfg = config.niksos.desktop.enable && config.niksos.desktop.kde;
+  inherit (config.niksos) desktop;
+  cfg = desktop.enable && desktop.kde;
+  active = cfg && desktop.activeDesktop == "kde";
+  ifActive = x: lib.mkIf active x;
 in {
-  specialisation.de.configuration = lib.mkIf cfg {
+  specialisation.de.configuration =
-    niksos.desktop.hyprland = lib.mkForce false;
+    lib.mkIf cfg
-    services = {
+    && !active {
-      greetd = let
+      niksos.desktop.activeDesktop = lib.mkForce "kde";
-        session.command = "${pkgs.kdePackages.plasma-workspace}/bin/startplasma-wayland";
-      in {
-        enable = true;
-        settings = {
-          terminal.vt = 1;
-          default_session = session;
-          initial_session = session;
-        };
-      };
-
-      desktopManager.plasma6.enable = true;
     };
 
-    home-manager.users.jsw.stylix.autoEnable = false;
+  services = ifActive {
+    greetd.settings = let
+      session.command = "${pkgs.kdePackages.plasma-workspace}/bin/startplasma-wayland";
+    in {
+      default_session = session;
+      initial_session = session;
+    };
+
+    desktopManager.plasma6.enable = true;
+  };
+  home-manager.users = ifActive {
+    jsw.stylix.autoEnable = false;
   };
 }

system/desktop/polkit.nix

@@ -3,10 +3,8 @@
   lib,
   pkgs,
   ...
-}: let
+}: {
-  cfg = config.niksos.desktop.enable && config.niksos.desktop.hyprland;
+  systemd.user.services.polkit-gnome-authentication-agent-1 = lib.mkIf config.programs.hyprland.enable {
-in {
-  systemd.user.services.polkit-gnome-authentication-agent-1 = lib.mkIf cfg {
     description = "polkit-gnome-authentication-agent-1";
     wantedBy = ["graphical-session.target"];
     wants = ["graphical-session.target"];

system/desktop/xdg.nix

@@ -3,10 +3,8 @@
   config,
   lib,
   ...
-}: let
+}: {
-  cfg = config.niksos.desktop.enable && config.niksos.desktop.hyprland;
+  xdg.portal = lib.mkIf config.programs.hyprland.enable {
-in {
-  xdg.portal = lib.mkIf cfg {
     enable = true;
     xdgOpenUsePortal = true;
     config = {

system/hardware/fingerprint.nix

@@ -5,20 +5,21 @@
   ...
 }: let
   inherit (config.niksos) hardware desktop;
-  inherit (lib) mkIf mkEnableOption;
+  inherit (lib) mkIf;
   uwsm = lib.getExe pkgs.uwsm;
   foot = lib.getExe pkgs.foot;
+  hypr = config.programs.hyprland.enable;
 in {
   config = mkIf hardware.fingerprint {
     services = {
       fprintd.enable = true;
-      logind.extraConfig = mkIf desktop.hyprland ''
+      logind.extraConfig = mkIf hypr ''
         # don’t shutdown when power button is short-pressed
         HandlePowerKey=ignore
       '';
     };
 
-    home-manager.users.jsw.wayland.windowManager.hyprland.settings = mkIf desktop.hyprland {
+    home-manager.users.jsw.wayland.windowManager.hyprland.settings = mkIf hypr {
       bind = [
         ", XF86PowerOff, exec, ${uwsm} app -- pgrep fprintd-verify && exit 0 || ${foot} -a 'foot-fprintd' sh -c 'fprintd-verify && systemctl sleep'"
       ];

system/hardware/graphics.nix

@@ -4,7 +4,7 @@
   lib,
   ...
 }: let
-  inherit (lib) optionals mkEnableOption mkDefault;
+  inherit (lib) optionals mkDefault;
   inherit (config.niksos.hardware) graphics;
   inherit (graphics) enable nvidia intel;
 

system/hardware/joycond.nix

@@ -3,7 +3,7 @@
   lib,
   ...
 }: {
-  config.services = lib.mkIf config.niksos.hardware.joycond {
+  services = lib.mkIf config.niksos.hardware.joycond {
     usbmuxd.enable = true;
     joycond.enable = true;
   };

system/hardware/power.nix

@@ -17,7 +17,7 @@ in {
       power-profiles-daemon.enable = true;
     };
 
-    environment.systemPackages = lib.mkIf niksos.desktop.hyprland [
+    environment.systemPackages = lib.mkIf config.programs.hyprland.enable [
       (pkgs.writeScriptBin "powermode" ''
         #!/usr/bin/env bash