Lightning is a Drupal distribution for Enterprise Authoring which enables developers to create a great authoring experience for website editors. You can find out more about Lightning on their website.
The Lightning distribution is compatible with DX8, although there are a number of modules which Lightning provides that are not compatible with DX8, see section below on Module compatibility.
Link to Distribution
The distribution can be found on Drupal.org here.
See a list below of modules and their compatibility that have been tested with Lightning and DX8