Comment # 2 on bug 1231137 from Stefan Hundhammer

I don't see a kiwi package in Leap 15.5 or 15.6.

  https://software.opensuse.org/package/kiwi


Also, this goes FAR beyond normal support for a Linux distribution, much less
via a bug tracker; this would be deep in consulting country.

  https://en.opensuse.org/Portal:Kiwi

  https://osinside.github.io/kiwi/

Maybe check there how to get in contact with the Kiwi developers, and if they
are willing to do that kind of consulting for free or for a fee.