I feel you. This ITX build is replacing a giant supermicro dual everything beast. I just kept its HDDs and moved everything to the Unraid ITX + some docker running on a M2 MacMini that is always on anyway.
I said to myself that I’ll resell the supermicro on auctions but still haven’t started to disassemble it.
Fun fact about divorce. A cute Jonsbo N3 with big Noctua fans is way more for peace and love at home than a 20Kg Supermicro chassis.
It is very good but depend on what you want to host.
I have a second hand cheapest M2 with Asahi Linux and some container (like pihole) but not much. I like that it is small, silent and energy efficient (and it can run Xplane12 in 4k !). But I have an homemade NAS so most of the multimedia stuff and containers are on here and not on the MacMini.
The M4 seems incredible, but Asahi Linux only support M1 and 2 at the moment (it might work with M4 tho).
The problem with the mini would be disk space if you are looking for a NAS usage, although I have seen here on lemmy a dude making a Mac Mini NAS (can’t find the post anymore).
But even without Asahi, an M4 with Mac OS, docker and a VM if needed would be plenty of power for price and energy. You can also upgrade to a 10Gbe NIC if your network supports it. Plug it to some screens and you have a workstation + docker server in one place.