Mhm, so I thought according to the Swift package Manager Team an Xcode project is not necessary to build an xcframework based on a Swift Package. - https://github.com/apple/swift-package-manager/pull/2981#issuecomment-710282803. boris is also referencing the same demo example he did in the WWDC video Distribute binary frameworks as Swift packages - https://developer.apple.com/videos/play/wwdc2020/10147/ from 2020, so I thought this is the latest status compared to the video Binary Frameworks in Swift from 2019. As a swift package, my project automatically gets an extension that provides the Bundle.module extension, e.g. swift let string = NSLocalizedString(self, tableName: nil, bundle: .module, value: "", comment: "") which is no longer available if I wrap the code into an xcodeproj. I thought based on the above mentioned github issue, the xcodeproj way is no longer necessary.

If I comment out the .binaryTarget and only use the .target(name:) the bash output is ARCHIVE SUCCEEDED [58.086 sec] but then if I look into the archived file, it has no *.framework inside it.