So.. I was wondering... How to modularize (gradle modules) with compose? Since we can't deeplink a function. How to keep features isolated, but still be able to launch a composable that I don't have a direct access to?

The navigation component (and other navigation tools) let you open composables without having a reference to them. And they also support deeplinks. And even without the help of a navigation framework, you could still pass a lambda to your feature that lets you open said composable

I don't know how navigation components will enable it, but I think a lambda won't work...