Just some if useful fyi from the "try deploying compose even though you shouldn't experiment". So far it seems to go well and the (fairly geeky) users are happy. But you might want to loop in the "Firebase Test lab" people if you haven't already. Because their standard instrumentation really doesn't like apps that don't use the conventional view hierarchy for their drawing. Lot's of false positives saying that the first frame is taking forever to draw, when in fact the app is running fine and cycling through it's test frames. Also a place to add analytics hooks for "screen" changes would be useful.

Interesting re. first frame drawing. To just about anything outside, Compose should look like some custom views drawing to the given Canvas in some pretty standard ways