Emacs, although with the obvious caveat that the sourcehut hosting of Emacs is little more than a mirror right now. There was at one point serious talk of Emacs

Emacs, although with the obvious caveat that the sourcehut hosting of Emacs is little more than a mirror right now. There was at one point serious talk of Emacs moving its primary development to either sr.ht or a GNU-hosted sourcehut, but I'm not sure if that went anywhere.