Very nice project!

> Optimule uses state-of-the-art routing algorithm's, run thousands of times, which guarantees that the routes generated are the fastest and shortest, while maintaining real-world business and customer constraints.

Which algorithms do you use for routing? Without giving away too much details (in case this is your secret sauce), what is the general approach? From the "guarantees" "fastest and shortest", I infer it's an exact approach rather than a heuristic one. Is it integer programming-based VRP? I thought the SOTA here was very hard to reach (column generation, cutting planes, etc.).