Both emacs and vim run on MacOS and Windows. Emacs even supports the CUA keybind...

jrockway on Feb 28, 2009 | parent | context | favorite | on: Diakonos: A Programmer's Text Editor in Ruby

Both emacs and vim run on MacOS and Windows. Emacs even supports the CUA keybindings, although if you're going to use those bindings, you might as well not bother with emacs.