Good question. Corviont is region-focused (you package one region), not "host the whole planet". Hundreds of GB is usually the full planet at high zoom / lots of layers.

Also it’s not one giant tile DB - there are 3 datasets:

  - map tiles (PMTiles)
  - routing tiles (Valhalla tiles)
  - geocoder index (SQLite)

For small countries like Austria/Slovakia, each is typically hundreds of MB.