How do I import a GPX, KMZ, or KML file into Outmap?

In the mobile app: open the Library, tap the (...) icon in the top-right corner, and select "Import GPX." On the desktop version at outmap.pro/maps: click "Import Data" in the left sidebar — it supports GPX, KMZ, KML, and GeoJSON formats. KMZ/KML import is not yet available on mobile but is coming soon.