Bro was ahead of the curve with Commercial Emacs. Maybe not at generating a broad enough coalition to see its rise to eminence, but certainly it is a repository.
I was actually just rebuilding my IGC branch with clang to do some FDO on it. Managed to get 25% pre-FDO with more aggressive flags. How's commercial Emacs looking these days? I didn't get the newsletter. --- via emacs-tangents mailing list (https://lists.gnu.org/mailman/listinfo/emacs-tangents)