Found the solution.
As of writing of this post, ARTv2 is fairly stable and feature complete, and you can clone it here:
https://github.com/EpicGames/ARTv2
To install:
Open Maya, drag install.mel into maya 3d viewport.
If you have script error, try changing:
python("if not os.path.exists(mayaModDir): os.path.makedirs(mayaModDir)");
to
python("if not os.path.exists(mayaModDir): os.path.os.makedirs(mayaModDir)");