nixos: init vanadium by cloning carbon

nix/nixosModules/named/vanadium/gui.nix

@@ -0,0 +1,40 @@
+{ pkgs, ... }:
+
+{
+
+  services.xserver.windowManager.xmonad = {
+    enable = true;
+    enableContribAndExtras = true;
+  };
+
+  services.xserver = {
+    enable = true;
+    autoRepeatDelay = 300;
+    autoRepeatInterval = 40;
+  };
+
+  services.xserver.displayManager.lightdm = {
+    enable = true;
+    background = "#000000";
+    greeters.gtk.cursorTheme = {
+      name = "volantes_cursors";
+      package = pkgs.volantes-cursors;
+      size = 64;
+    };
+  };
+
+  services.xscreensaver.enable = true;
+
+  services.picom = {
+    enable = true;
+    vSync = true;
+    fade = true;
+    fadeDelta = 3;
+    settings.fade-exclude = [
+      "name = 'Fcitx5 Input Window'"
+      "class_g = 'fcitx'"
+      "class_i = 'fcitx'"
+    ];
+  };
+
+}