feat: homebrew - darwin

modules/darwin/apps.nix

@@ -29,6 +29,12 @@ let
     # HTTP_PROXY = "http://127.0.0.1:7890";
     # HTTPS_PROXY = "http://127.0.0.1:7890";
   };
+
+  homebrew_env_script =
+    lib.attrsets.foldlAttrs
+    (acc: name: value: acc + "\nexport ${name}=${value}")
+    ""
+    (homebrew_mirror_env // local_proxy_env);
 in {
   # Install packages from nix's official package repository.
   #
@@ -54,17 +60,10 @@ in {
     // homebrew_mirror_env;
 
   # Set environment variables for nix-darwin before run `brew bundle`.
-  system.activationScripts.homebrew.text = let
-    env_script =
-      lib.attrsets.foldlAttrs
-      (acc: name: value: acc + "\nexport ${name}=${value}")
-      ""
-      (homebrew_mirror_env // local_proxy_env);
-  in
-    lib.mkBefore ''
-      echo >&2 '${env_script}'
-      ${env_script}
-    '';
+  system.activationScripts.homebrew.text = lib.mkBefore ''
+    echo >&2 '${homebrew_env_script}'
+    ${homebrew_env_script}
+  '';
 
   # Create /etc/zshrc that loads the nix-darwin environment.
   # this is required if you want to use darwin's default shell - zsh