added flakes for nix

nix/modules/desktop/default.nix

@@ -0,0 +1,5 @@
+{
+  imports = [
+    ./desktop.nix
+  ];
+}

nix/modules/desktop/desktop.nix

@@ -0,0 +1,43 @@
+{
+  config,
+  lib,
+  inputs,
+  pkgs,
+  ...
+}: let
+  inherit
+    (lib)
+    mkIf
+    mkMerge
+    mkDefault
+    mkOption
+    types
+    ;
+  cfg = config.illogical-impulse.desktop;
+in {
+  options = {
+    illogical-impulse.desktop = {
+      enable = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          Enables Hyprland and quickshell.
+        '';
+      };
+    };
+  };
+  config = mkIf cfg.enable {
+    programs.hyprland = {
+      enable = true;
+      package = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.hyprland;
+      portalPackage = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.xdg-desktop-portal-hyprland;
+    };
+    environment.systemPackages = [
+      inputs.quickshell.packages.${pkgs.system}.default
+      inputs.matugen.packages.${pkgs.system}.default
+    ];
+    environment.etc."skel/.config/quickshell" = {
+      source = "../../../.config/quickshell";
+    };
+  };
+}