> Any OpenWRT device can do this out of the box with zero additional configuration.
Except you must use AT&T's modem when you buy their fiber, and you can't install OpenWRT on it. The rant is lamenting that the all in one modem/router isn't configurable at all, and you need to be using an aftermarket router for your LAN to have any kind of internal DNS.
Sure, but the point was that you have to buy another gadget. And there's still a box you don't control that has to live in your basement (or wherever) doing some not insignificant lifting.
Wouldn't it be nice if you could just configure the box you're paying for already to do the right thing?
I've been using my own router across many ISPs over time, and almost all of them offered a "bridge" mode that would just hand a public IP to my own router over DHCP.
You have to use their modem*. You can bring your own router which is what every nerd should probably be doing anyway, but there's no option for an off the shelf modem.
Except you must use AT&T's modem when you buy their fiber, and you can't install OpenWRT on it. The rant is lamenting that the all in one modem/router isn't configurable at all, and you need to be using an aftermarket router for your LAN to have any kind of internal DNS.