Here are some tips and tricks on setting up Emacs.app on Mac OS X. These are based on my personal experience of using Emacs.app for the past 10 years or so; there may be better ways, but these work for me. Running Emacs.app from the command line Run this to make a symlink to ensure emacs is in your PATH. sudo ln -s /Applications/Emacs.app/Contents/MacOS/Emacs /usr/local/bin/emacs Or, if you prefer