Happy pi.dev user here, give it a try! I would say that's kind of the "vim experience" but for harnesses: has the minimum, if you want something more you extend it :)

Saying it gives "the minimum" is generous, it's pretty much useless out of the box. And did I say slow as well? I think pi is great if you're into spending your time managing your harness rather than using it. In that regard, it's more like neovim.

I'm wondering who's going to buy pi!

(Edit sorry forgetting names, I mean who's going to buy Earendil). Good luck to Armin, he's done some good stuff.