@iona @ntnsndr Not a fork, but rather a distribution ecosystem.
A distribution is Drupal Core plus contributed modules, customizations and themes pre-configured. So when installing you get features out of the box you won't find installing a plain Drupal site.
By ecosystem I mean we are building our first distribution in a way that future, more specific distros could spin off of.
More on the technical aspects in our white paper - https://www.drutopia.org/white-paper