$ brew install ag macvim
$ git clone https://github.com/gmarik/vundle.git ~/.vim/bundle/vundle
$ git clone https://github.com/BrentWheeldon/dotfiles
$ ln -sf {`pwd`/dotfiles/,~/.}bash_profile
$ ln -s {`pwd`/dotfiles/,~/.}ackrc
$ ln -s {`pwd`/dotfiles/,~/.}gitconfig
$ ln -s {`pwd`/dotfiles/,~/.}inputrc
$ ln -s {`pwd`/dotfiles/,~/.}vimrc
$ ln -s {`pwd`/dotfiles/,~/.}gemrc
$ ln -s {`pwd`/dotfiles/,~/.}psqlrc
$ vim -c "BundleInstall" -c "qa"
$ cd ~/.vim/bundle/command-t/ruby/command-t
$ make clean
$ /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
$ make

Install the Menlo for Powerline font from here (just click raw, open the downloaded file, and then click "Install Font").

Add your git user details to ~/.gitconfig.local:

[user]
  email = <email>
  name = <name>