I understand. The script is therefore compiled into a mac binary executable. AFAIK, there is no other way to start a Java App than calling ja JRE and passing the runnable jar as a parameter.

Thanks @eskimo for your reply! to merge the Intel and Apple silicon Mach-O images into a single universal binary. I thought that would only apply for the main executable as defined in the Info.plist, by the CFBundleExecutable key. So do I understand correctly, that there is no way to package libraries for both arch types separately in a bundle? Technically this should work but apparently the validator will not understand this setup.

Is there any solution to this?