Brief technical video discussing the move to Godot 4.2.2 double for huge map sizes.
Writeup:
https://forum.longplay.games/t/compil...

Supporting Documentation:
Large World Coordinates: https://docs.godotengine.org/en/stabl...
Compiling Godot: https://docs.godotengine.org/en/stabl...

For perspectives on an 8090km space map: the ISS is 420 kilometers above the surface of the Earth.