This is not related to #OpenStreetMap it could. It is a simulation in #rustlang with roads buildings & cars, just like you may have seen in F4map.org. A Object system is used, like #BevyEngine does. If you watch the demo at 14:30, it's like we know OSM in 3D. The app could be modified to read & show (&simulate) OSM data.
AND it includes editing! Image to see the OSM layer in 3D, may be your GPS track or layers like JOSM knows. Now you could create or modify "live" in 3D.

https://youtube.com/watch?v=LiIoE8ArACs&si=o4XecnOFtyhClmBp