Once you get your setup bulletproof such that you can have multiple agents running at the same time that can run unit tests and close their own loops things get even faster. However you accomplish that. Not as easy as it sounds mostly (and absurdly) due to port collision. E2E testing with playwright is another leap.

Can't you, like, ask Claude to fix port collision for you? Duh

Just let it test in different containers? That’s not the hard part IMO.