The build is on http://bitdivine.com so you can make builtins too and test them right there, without having to build and host a copy yourself.
Whilst on the note of the effort of maintaining your own build, until I have plugged my credentials into the facebook drive you won't be able to use that bit. w00t, the best bit is missing? It's getting there. In the meantime get coding. Time for some new data sources, folks!