A modern programming language that makes developers happier.

kotlinlang

Does something akin to a Kotlin/Native common library exist? (I'm looking for a way to write platform-indenpendent code common to all *native* targets that would be extended in target specific modules using platform specific code.)

Not yet but it's being actively worked on. <https://youtrack.jetbrains.com/issue/KT-26968>

You could use MPP for this with multiple native targets and expect/actual classes for the items common across the different native targets. It’s not ideal but should work. 

It would work if `kotlinx.cinterop` was also multiplatform but it's not (At least not according to the IDE).

cinterop is multiplatform between Native flavours, as the rest of standard library