The closest I have so far to a tutorial is a post on the announcement thread, which should give you a working set of blueprints and an attempted explanation for how to use them:
https://forums.factorio.com/viewtopic.php?f=97&t=57557&p=343207#p343207
(The mod was intended for routing individual items across belts, but is not limited to that use - it just solves routing & pathfinding problems against a circuit-controlled directed graph)
