I'm replying to let you know that you are an absolute legend :D this is exactly what I needed. I've been implementing a post-install icon change from the custom installer to the app itself and it works so smoothly. It's MUCH better than all the hacky stuff I was trying to do earlier. Thank you so much, I can now sleep with a clear mind

Thank you for the reply it's really helpful! For the name in the menu bar issue I'll probably stick to a name (at compile time) that can be generic enough for all other versions of the app so as to avoid all of that For the icon issue I noticed you said: The first is to have a post-install script that applies a custom icon to your app. This has one key advantage: It’s easy to implement (-: Specifically, setting a custom icon doesn’t affect the app’s code signature. How exactly? The reason I'm doing these Dock icon change shenanigans is because I tried changing the icon of the app after installation and it somehow breaks the signature. Do I change it from the app itself after it launches? or do I change it from the installer app ? The installer app downloads the main app and then extracts it to an appropriate location