Next question for me is how to organize my source code repos. The initial setup from Intellij (EAP) seems to build a monolith project to contain all the top level code (common, Android and iOS) in a single place (minus libraries). I’m guessing this is important for Gradle. I suspect one way to use multiple repos is to use git sub-projects. Is there a better way?

you can build your shared code into libraries and use them in android and ios projects using maven and cocoapods

Can the libraries be multiplatform such that Gradle can figure out how to build the Android and iOS apps correctly?

in your “main” project you build libraries -

.framework

for ios and I think jar for android. They are more or less separate things (built from the same code). Then you have two other projects

ios

and

android

which import those builded libraries

Just found the multiplatfom library documentation which answers my second question.