It also depends what else you are trying to do, but I love PiHole’s ability to act as a proper DNS server for my LAN with support for A and CNAME records
Plex on AppleTV is known for not supporting Atmos pass through. I have never actually tried it because I don’t have Atmos at home, but most common suggestion is to pay for Infuse on AppleTV
https://grafana.com/docs/grafana/latest/alerting/