tl;dr: Kugelblitz is a native Mac 3D globe/atlas app that renders Earth (and neighboring bodies) using open geodata from OpenStreetMap and other public sources via its own tile server, with no account or region downloads required. It supports imagery, road, and topographic maps draped on 3D terrain, five atlas projections, SpaceMouse control, Vision Pro streaming, and runs smoothly on an M1. Extras include a library of global geoportals and a time-based display of eclipses, earthquakes, eruptions, and other events over 5,000 years.