Is it possible to configure the shared library so that it will compile native code that can be called via JNI for the androidCommon actual classes?

Can't think of a reason to do it, but looking at the docs, you should be fine - just create an

so

lib and call it through JNI: https://kotlinlang.org/docs/native-dynamic-libraries.html#create-a-kotlin-library

In my case I want to use libopus. Not sure if it makes sense to build it myself or use precompiled so files.