Can you have a mulitplatform project with a Multiplatform subproject and avoid publishing an extra binary for the subproject? I'd like it all to end up in a single AAR, but it seems no matter what I do, the sub-project module shows up in the gradle module metadata, and then dependency resolution fails when I try to use the multi-project library

I don't think this is possible, unless your project is publishing binaries.

overall project publishes an aar

I can assure you that you'd have to do some ugly hack.

I want to pull it into a subproject as a step toward open-sourcing some code

Oh... so you're gonna publish it anyway. 😂

So it will be eventually. It seemed like this was a good option as a step toward doing that. Turns out I then I have to publish again anyway

Can I ask what the subproject is (gonna be)?

Sure! Working on open-sourcing the worker code that lets us run multi-threaded coroutine-type code in common code. It's not perfect, but it's keeping us out of the "no multi-threaded coroutines in native" hole

Interesting, I can't wait to see your approach. I've been postponing multi-threading for ages because I can't be arsed to freeze things.

Spoiler: it freezes things

Agreed

Subprojects are like sibling projects. If you depend on them, you need to publish them too.