ZSH Performance References http://jb-blog.readthedocs.io/en/latest/posts/0032-debugging-zsh-startup-time.html https://bennycwong.github.io/post/speeding-up-oh-my-zsh https://carlosbecker.com/posts/speeding-up-zsh https://wpsuperheroes.com/slow-osx-terminal-oh-my-zsh https://gist.github.com/ctechols/ca1035271ad134841284