It really is, but you will still want wifi, so you need a team of internet connected wifi points with central control, which play nicely with each other. I have use Ubiquiti in the past. Is there an open source version of what they do?
Ubiquiti mesh stuff works very well and is an overall polished experience. Supposedly their APs are at least distantly descended from OpenWRT but they are not open source. Their platform is pretty open in terms of integrating with other stuff and not locking you in, at least.