Its main contender, vi, was dying until it "became an emacs" through vim, as @antifuchs once said to me. (Back in the day, when "OS that lacks a good editor" was most common, one of the most prominent arguments *for* Vi over emacs was that it wasn't extensible; shouldn't the unix philosophy be enough??!?!?!)
@mathew I'm a big fan of the Guile Emacs effort... I packaged Guile Emacs for Guix at one point.
It would indeed be very nice to see it succeed. I'm afraid the air may have been sucked out of the room for it via the native compilation emacs branch (which is not to shoot down the native compilation branch, that's a fantastic effort). However there are some things guile-emacs couple provide that the native compilation can't... I wish it would continue
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