Have you ever done a map using a GIS (Geo-Information System) framework?
And if so, what would you tell someone who is contemplating such a thing with no prior practical experience of such systems?
The idea would be a custom fantasy world, starting with continental outlines and working my way inwards to focus regions.
And I would use QGIS.
And now you have introduced a new generation of #ttrpg players to the existence of this game.
You fiend!