got off the ground was the Lex Spoon built a few universes, and then he got some people to maintain them. Perhaps someone needs to write the Sake packages to get things started.
Sake/Packages keeps up to date with the latest Development Universe definitions (and 3.7 Universe), so things are already started.
The advantage of Sake/Packages being that if you find something that doesnt quite work the way that you want, you can either fix it, and contribute your fix back, because everything is "publically editable". Either that or you can subclass and customise a definition for your own needs.
Keith