Is there a "composable" way of sharing data between screens like how you could use a shared view model for sharing data between fragments?

Sure:

val sharedState = memo { createStateObject() }

when (screen) {
  Screen.First -> FirstScreen(sharedState)
  Screen.Second -> SecondScreen(sharedState)
}

awesome, thanks! (:

Note that the above won't persist across config changes (yet) - stay tuned on that front. 🙂 what API you'll need to use in place of

memo

there may change but the idea will remain