CommonsCloud and WikiSuite have some similarities. This page is to explain the differences and rationale of choices. You likely will be interested in the other alternatives to WikiSuite.
As of 2018, CommonsCloud has picked 3 apps to integrate (Phabricator, NextCloud and Discourse), but it's not clear how to download and install the solution. WikiSuite offers a much broader feature set, with installers: How to install WikiSuite