Thanks for your answer Etresoft. It's true, I have not been using XCode because it is a Java based application with openjdk 15 included in the package. I have been using this official Apple tutorial for my notariation workflow (after codesigning): https://developer.apple.com/documentation/xcode/notarizing_macos_software_before_distribution/customizing_the_notarization_workflow#3087734 I am not sure if using XCode is an option when publishing custom .app packages?

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