Switch to snowfall flake configuration

modules/system/xdg/default.nix

@@ -0,0 +1,25 @@
+{ options, config, pkgs, lib, ... }:
+
+with lib;
+#with lib.internal;
+let cfg = config.custom.system.xdg;
+in
+{
+  options.custom.system.xdg = with types; {
+    enable = mkBoolOpt false "Whether or not to enable xdg.";
+  };
+
+  config = mkIf cfg.enable {
+    xdg = {
+      sounds.enable = true;
+      mime.enable = true;
+      menus.enable = true;
+      icons.enable = true;
+      autostart.enable = true;
+      portal = {
+        enable = true;
+        extraPortals = with pkgs; [ xdg-desktop-portal ];
+      };
+    };
+  };
+}