First working version of NixOS intall

modules/home/desktop/gtk.nix

@@ -0,0 +1,29 @@
+{ pkgs, ... }: 
+{
+  gtk = {
+    enable = true;
+    theme = {
+      name = "Arc-Darker";
+      package = pkgs.arc-theme;
+    };
+    iconTheme = {
+      name = "Papirus";
+      package = pkgs.papirus-icon-theme; 
+    };
+    font = {
+      name = "Deja Vu Sans";
+      package = "${pkgs.dejavu_fonts}";
+      size = 10;
+    };
+  };
+
+  home.pointerCursor = {
+    name = "Adwaita";
+    package = pkgs.gnome.adwaita-icon-theme;
+    size = 24;
+    x11 = {
+      enable = true;
+      defaultCursor = "Adwaita";
+    };
+  };
+}