Most spatial apps load their sky. StratoSync computes it. Metal compute kernels rebuild the Aurora and Star Nest domes on the GPU every display refresh, and Dusty Nebula ray-marches a live field over an 8K procedural star sky — no authored image or video assets. Sunlight is aimed from the real subsolar point, so Earth's day/night terminator matches this moment; the live ISS moves through it on its ~51.6° orbit. Grab Earth, inspect the station, draw around it, or watch together over SharePlay.
