From a gradle point of view my project structure looks like: Project A (android app) -> Project B (android library) <- Project C (android library) So instead of having a multi module project I have a bunch of standalone projects that are published separately. I ran into some problems and was overthinking this approach and I don't know why I went this path in the past (I guess I didn't know how to publish modules in a mm project). Since we can publish modules in a multi module project (so they can be shared with other projects) wouldn't it be better to got with a multi module project. I can't see any benefit with having a lot of single projects. Are there any advantages disadvantages between these approaches?

working with published modules are hard and tedious, it has sense if you are going to share them among libraries/apps, but if they belong to a specific project, any time you change it you have to republish and update the version in the app...

Modules in their own repo enable the fllowing scenario: Module A is integrated in two different apps B and C. You will find this in large corporations with multiple teams & apps. For a single app it's way overkill. Except you have like 50+ modules which starts to task the build system and Android Studio.

Thanks @Javier, @Daniel