Mac OS X comes with GNU Emacs. Generally installing GNU Emacs is about one of the first things I do on any machine I use. Other than that I use Emacs variants

Mac OS X comes with GNU Emacs. Generally installing GNU Emacs is about one of the first things I do on any machine I use. Other than that I use Emacs variants in Common Lisp for programming. Mostly derivatives of Hemlock, an Emacs editor written in Common Lisp by CMU in the early 80s.