I am also interested in Zed!

(Although I think the program still needs a bit of time to smooth out the edges, plus not everyone may be a fan of the AI and collaborative features, which get a lot of care in the GUI. You can turn all of it off, but still.)

But I don't like the implication that Nova is abandoned or less modern compared to Zed. Nova is arguably one of the sexiest apps on the Mac right now – it looks gorgeous and it's far more "Mac-assed" than any of Apple's software, for starters. And in terms of development / maintenance, it should be in VERY good hands at Panic.

You're 100% right on open-source vs closed-source, though.