There's very little on the Github page - 18 commits, with the last "real" commit (not just an organizational change) being in September. This might be a thing some day, but right now it's just another clever idea.
I've been working on a follow-up system called Alpenhorn that addresses the bootstrapping problem in Vuvuzela: https://vuvuzela.io/alpenhorn-extended.pdf
I will release Alpenhorn and a new version of Vuvuzela in January.