Ipv6 only hosting still seems as good as an airgap😅

I have been using nix on various systems and especially nixos for quite a while and a github access token has been about the most exciting thing in nix.conf (and enabling flakes obviously😅)

Do you mean configuration.nix?

Osmand to my knowledge Limits the number of offline maps you get for free, mapy.cz does not. In mapy.cz you also get the terrain for free.