“Technically correct” is the best form of correct. Though having tried setting up Wireguard in the past, having a dead-simple solution like Tailscale might be worth trying it out, especially with the 100 device free tier

IoS - internet of shit

With the enshittification of streaming platforms, a Kodi or Jellyfin server would be a great starting point. In my case, I have both, and the Kodi machine gets the files from the Jellyfin machine through NFS.

Or Home Assistant to help keep IOT devices that tend to be more IoS. Or a Nextcloud server to try to degoogle at least a little bit.

Maybe a personal Friendica instance for your LAN so your family can get their Facebook addiction without giving their data to Meta?

I haven’t used Tailscale myself, but it seems like it’s basically just a Wireguard frontend.