Deterministic, hierarchical pathfinding and navmesh generation for RTS that supports multiple simultaneous maps, P2P lockstep networking and dynamic obstacles. About 5x faster than Recast but less feature-rich. Took a month, implemented in Unreal Engine.

80.LV even wrote an article about it: https://80.lv/articles/ue-based-real-time-navmesh-editing-with-boolean-operations/