diff --git a/nixos/default.nix b/nixos/default.nix
index baa56cb..e97d594 100644
--- a/nixos/default.nix
+++ b/nixos/default.nix
@@ -1 +1,9 @@
-{ pkgs, lib, ... }: { }
+{ lib, ... }: {
+  options.catppuccin = {
+    flavour = lib.mkOption {
+      type = lib.types.enum [ "latte" "frappe" "macchiato" "mocha" ];
+      default = "latte";
+      description = "Global Catppuccin flavour";
+    };
+  };
+}