Maybe the concept of running separate DNS servers has run its course. It could be more worthwhile to forward DNS requests from all servers to some sort of DNS infrastructure of AirVPN which is hosted with companies you wouldn't associate VPN activities with, and in a way similar to a CDN, ergo, worldwide. To expand on this, one can even think about offering some sort of DoT/DoH in the future building on this "DNS CDN", helping people who cannot connect to AirVPN against DNS poisoning and other