Chef is a tool for provisioning and configuring systems in Ruby. Vagrant is a tool to automate provisioning on your own computer using VirtualBox. Fog is a tool designed to automate provisioning on your choice of clouds (Amazon, Rackspace, or Blue Box Group). See how these can combine to have your application ready for war!
Remote pairing is coming into its own. Using the tools in Section 1, we'll set up a remote pairhost, and discuss techniques for effective pairing on a shared remote instance using Skype, iTerm2, and tmux. Don't be limited by proximity! Be effective with your pair wherever you find yourselves.