For now, I think, the only possibility is to commit files manually.
I.e. download them, save them in an appropriate folder (the oqmath folder?), then commit that.
It might be nice to suggest a hook to George to libresource-commit when saving in extasy…
we could then use a _lecture-synchronizer_ which could also be used for you to see content on your laptop (for edition) and see it delivered by lecture.
paul