A `Vagrantfile` setting up a virtual machine (Ubuntu 12.04), downloads the code of http://playfulmachines.com/.

Vagrant

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|

  config.vm.box = "hashicorp/precise64"

  config.vm.provider "virtualbox" do |vb|
    vb.name = "PlayfulMachines"
  
    # Display the VirtualBox GUI when booting the machine
    # vb.gui = true
	
    # Customize the amount of memory on the VM:
    #vb.memory = 4096
    #vb.cpus = 4
    #vb.customize ["modifyvm", :id, "--cpuexecutioncap", "80"]
    #vb.customize ["modifyvm", :id, "--accelerate3d", "on"]
    #vb.customize ["modifyvm", :id, "--accelerate2dvideo", "on"]
    #vb.customize ["modifyvm", :id, "--vram", "64"]
  end

  config.vm.provision "shell", inline: <<-SHELL
	  sudo apt-get update
	  sudo apt-get -y upgrade
	  sudo apt-get install -y xfce4

	  sudo apt-get install -y python-software-properties
	  sudo add-apt-repository -y ppa:georg-martius/lpzrobots

	  sudo apt-get update
	  sudo apt-get install -y firefox playfulmachines

	  if ! [ -L /opt/playfulmachines ]; then
	    cp -r /opt/playfulmachines /vagrant
	  fi
    SHELL
end

• Install VirtualBox and Vagrant
• Make some directory whereever convinient (referred to as for now)
• Change to that directory in a terminal (e.g. bash or cmd)
• You'll need VirtualBox guest additions: most conviniently keep them up-to-date via plugin: in terminal run vagrant plugin install vagrant-vbguest
• Comment out the settings line 15-20 for your specific machine
• Place the gist in and do vagrant up (needs an internet connection and patience)
• A window of ViretualBox will open showing your guest terminal. Use user "vagrant" and password "vagrant" to enter, after vagrant setup has finished
• If the window is not maximized (i.e. guest additions are not install), do vagrant halt && vagrant up in (it may need a restart)
• Again, login in the opened VirtualBox window
• Enter startx to start X.
• CD into /vagrant/playfulmachines and do firefox index.html