feat(hyprland): emit compositor config as lua

configs/nixos/modules/desktop/session/mako.nix

@@ -6,9 +6,21 @@
 }:
 # mako as the notification daemon: toasts, a do-not-disturb mode, and history recall.
 let
+  execBind = key: command: {
+    _args = [
+      key
+      (luaCall "hl.dsp.exec_cmd" [ command ])
+    ];
+  };
+  luaCall =
+    function: args:
+    lib.generators.mkLuaInline "${function}(${lib.concatMapStringsSep ", " toLua args})";
+
   user = config.user.name;
 
   makoctl = "${pkgs.mako}/bin/makoctl";
+
+  toLua = lib.generators.toLua { };
 in
 {
   options.modules.desktop.session.mako.enable = lib.mkEnableOption "the mako notification daemon";
@@ -34,9 +46,8 @@ in
 
       # Recall the last notification from history, keyboard-only like the rest
       # of the session.
-      # $mod is defined by the compositor config these binds share.
       wayland.windowManager.hyprland.settings.bind = [
-        "$mod, N, exec, ${makoctl} restore"
+        (execBind "SUPER + N" "${makoctl} restore")
       ];
     };
   };