fix(macos): trampoline apps

modules/home-manager/darwin-trampolines/default.nix

@@ -0,0 +1,20 @@
+{ inputs, outputs, ... }:
+{ lib, pkgs, config, ... }:
+
+{
+  imports = [ ];
+
+  options = { };
+
+  config = {
+    home.activation = lib.mkIf pkgs.stdenv.isDarwin {
+      trampolineApps = let
+        mac-app-util = inputs.mac-app-util.packages.${pkgs.stdenv.system}.default;
+      in lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+        fromDir="$HOME/Applications/Home Manager Apps"
+        toDir="$HOME/Applications/Home Manager Trampolines"
+        ${mac-app-util}/bin/mac-app-util sync-trampolines "$fromDir" "$toDir"
+      '';
+    };
+  };
+}