A new tutorial has been posted on the php[architect] site today showing you how to build a VM for Drupal 8 with the help of Vagrant.
At this year's php[world] hackathon, I spent my time getting a Vagrant machine configured to run Drupal 8. I know there are other options, like Acquia's own Dev Desktop, or even Zend Server. However, I like using Vagrant to run my LAMP stacks, especially on OS X. I've never been able to easily run xAMP on non-Linux machines. Installing MySQL can be a pain, system updates can change the version of PHP you're running, and some PHP extensions are really difficult to build-even with Homebrew. Vagrant simplifies getting a working development environment running by automating the provision of a virtual machine for you, usually with a tool like Chef, Puppet, or Ansible.
Oscar (the author) took advantage of some time at the php[world] hackathon to create the necessary files for building this environment. He walks you through the steps to creating the basic vagrant file with "config" options (explaining each one) and walks through the setup of additional options, software like Apache and Drupal. He then sets up the Ansible configuration to create the box, run the provisioning and configuration of the resulting server. Finally, he shows the result of the install if everything was successful.