Install Ruby then
bundle install
Install Vagrant then
vagrant plugin install vagrant-cachier
vagrant plugin install vagrant-omnibus
vagrant plugin install vagrant-berkshelf
You'll also need Virtualbox but I would recommend dropping some loot on VMware Fusion (or Workstation if you're on Windows) and the Vagrant VMware provisioner
vagrant up
vagrant up --provider=vmware_fusion
vagrant plugin install vagrant-aws
vagrant up --provider=aws
vagrant plugin install vagrant-rackspace
vagrant up --provider=rackspace