feat(waybar): add enable option

home/modules/waybar/default.nix

@@ -1,11 +1,24 @@
+{
+  config,
+  lib,
+  ...
+}:
+
+let
+  cfg = config.waybar;
+in
 {
   imports = [
     ./settings.nix
     ./style.nix
   ];
 
-  programs.waybar = {
+  options.waybar.enable = lib.mkEnableOption "waybar";
-    enable = true;
+
-    systemd.enable = true;
+  config = lib.mkIf cfg.enable {
+    programs.waybar = {
+      enable = true;
+      systemd.enable = true;
+    };
   };
 }