I think that nesting scaffolds just to show snackbars is probably not a great idea. You can just pass the snackbar state down from the top, or decouple even more and make lower components ignorant of the snackbar concept entirely and just send events up to higher components which are then responsible for showing snackbars. Or, I think you can create just a snackbar host in a lower component without the whole scaffold (I can’t remember if the api for this is public, thought it was at some point).