Out of these 30 services, ~8 are useful on a daily basis, some from time to time,e and the rest is either forgotten or tests.

What I meant I that I do not have the kind of setup a lot of people show: a DC-grade self, with a U2 switch etc. I have an old server, my ISP box, a UPS, a switch and maybe something else I forgot. But since the server runs both Home Assistant and Pi-hole, it is critically important.

OTOH this criticality allows me not to invest too much in monitoring: I have family and friends yelling immediately when something is down :)