onlinemapsources.xml file is the primary configuration file used by OruxMaps to define and access online map tile services
For power users, it’s the difference between using a map app and owning a map app. The XML file is a master override. When the apocalypse comes and the commercial map servers go dark, Oruxmaps users with a community XML file will still be pulling tiles from academic mirrors, OpenStreetMap clones, and cached personal archives. Oruxmaps Online Map Sources.xml