in reply to OT: Emacs on Mac Catalina?
That's what you mean? I'm pretty sure that was just a vanilla version which should be installable via package manager.
Additionally I was able to install AquaMacs which came with the full Mac-OS look-and-feel (and keybindings IIRC ?).
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery