Change structure

modules/system/darwin/casks/microsoft.nix

@@ -0,0 +1,20 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.os.homebrew.microsoft;
+in
+{
+  options.os.homebrew.microsoft = {
+    enable = mkEnableOption "System microsoft homebrew service";
+  };
+  config = mkIf cfg.enable {
+
+    homebrew.casks = [
+      "microsoft-word"
+      "microsoft-excel"
+      "microsoft-powerpoint"
+      "microsoft-teams"
+    ];
+
+  };
+}