@andypiper this is just one example, of course. being able to hook into the incoming/outgoing data events, UI interactions, and DOM render stuff (state change, new component instance created, callback before component DOM update/insertion, callback after component DOM update) would make it incredibly flexible and super customisable. would probably also result in a lower barrier to entry for folks proposing UI tweaks, since they wouldn't have to spin up a whole instance just for dev/test.