Trying to build my shared module after adding macosArm64 target, into my universal XCFramework, and getting this:

Fat frameworks are not supported for platform

macos_arm64

Is this true, or is my configuration messed up?

It is true, unfortunately: https://youtrack.jetbrains.com/issue/KT-47355/Support-macos-target-for-FatFramework-task

Well, that sucks. Since there is no maccatalyst support, this was my next best shot to get a pure Apple Silicon version of my app working (without installing Rosetta). 😞

You can always find some of the older docs for the plugins, where fat frameworks were made manually. Let me see if I can dig something up, it wasnt the worst thing in the world.