diff --git a/macos/ReactTestApp/AppDelegate.swift b/macos/ReactTestApp/AppDelegate.swift
index 73a7288ec..cbf015d84 100644
--- a/macos/ReactTestApp/AppDelegate.swift
+++ b/macos/ReactTestApp/AppDelegate.swift
@@ -149,6 +149,8 @@ extension AppDelegate {
     }
 
     func applicationWillFinishLaunching(_: Notification) {
+        // applicationWillFinishLaunching(_:) [ENABLE_SINGLE_APP_MODE=0]
+
         if Session.shouldRememberLastComponent {
             rememberLastComponentMenuItem.state = .on
         }
@@ -294,6 +296,8 @@ extension AppDelegate {
         rootView.frame = frame ?? NSRect(size: WindowSize.defaultSize)
         window.contentViewController?.view = rootView
 
+        // applicationWillFinishLaunching(_:) [ENABLE_SINGLE_APP_MODE=1]
+
         #if DEBUG
         showReactMenu()
         #endif // DEBUG