ArrayShift is a question/answer site built to emulate the core functionality of the StackOverflow.com site and the StackExchange platform. Originally built as a fantasy site for Lullabot’s Do It With Drupal conference in December 2009, the installation profile is capable of bootstrapping and configuring the initial site.
It currently implements a reasonable subset of the site’s functionality, but is incomplete and far from bug-free. It has rough edges that need to be smoothed out and functionality that needs to be finished in other contrib modules before this package could be considered a full feature-clone of Stack Overflow, or before it could be considered ready-for-use by site builders who do not already know Drupal well. A TODO.txt will be coming shortly.