Will have to look at kea and corerad. What hardware do you use for the wireless links? Intel has been very hit or miss in my experience. And the misses suuuck, like after enough hosts connect, you get kernel panic on every new client connection, or all but the one device I needed a separate wlan for are compatible with the host. So, NixOS on a router that doesn’t have to be a wifi ap is extremely nice in my experience.