Also, would it be possible to have a jvm common? since the entire project would be in jvm only.

with Kotlin 1.4 yes, this is a feature which has been in preview but is now more documented: https://kotlinlang.org/docs/reference/mpp-share-on-platforms.html#share-code-on-similar-platforms

Doesn't seem like it's supported

We don't currently support sharing a source set for these combinations:

- Several JVM targets

Since I wont be using JS/Native, It's a JVM-only project. I just want to take advantage of

expect/actual

well spotted.