I use it on OPNSense and it seems to work fine. There may be a Megamind (edit: MaxMind, not Megamind) account plugin setup out something to get it going, but if

I use it on OPNSense and it seems to work fine. There may be a Megamind (edit: MaxMind, not Megamind) account plugin setup out something to get it going, but if I worked it out, then you should be right. I use it to flat out block all incoming and outgoing connections to a certain small group of countries. More out of curiosity than necessity. It's also got a Crowdstrike interface for more dynamic blocking.