Cheers, well done. I was indeed wondering why this doesn't already exist last night when playing with Sonnet :)

Can I suggest showing the artifacts in one of those (possibly switchable) inline code editors like codepen/replit? That allows you a) basically to support whatever from Haskell to React b) we can edit a play a bit without copy/paste before moving it to its final destination.

Great suggestion! I was thinking about providing a React boilerplate and file selectors to make the artifacts a real project(users can select components and combine them as a project to deploy)