Well you seen the news with drupal 8 the way we theme is going to be different using twig
this is a basic play with twig in Drupal8 ,
Ok to play you need drupal 8 ! that is for starters so just git it.
You will also want to add admin/config/development/performance
To your shortcuts or open in another tab. as drupal 8 theme settings ~right now anyway~ do not have the rebuild theme cache on every page , which sucks because when you make a change to the template you need to clear the sites cache to see if things worked out.