As another commenter said (but got downvoted to oblivion for some reason), its not really about uptime for the homelab, its about graceful shutdown/restart. And theres well defined protocols for it (look up network ups tools, aka NUT).
> its not really about uptime for the homelab, its about graceful shutdown/restart.
These are different requirements. The issue I described was not a power outage and having a well managed UPS wouldn't have made a difference. Nothing shut down, but we lost 5G in the area and T-Mobile's modem is janky. My point is that it's another edge case that you need to consider when self hosting, because all the remote management and PDUs in the world can't save you if you can't log into the system.
Of course there's all you need is a smart plug and a script/Home Assistant routine which pings every now and again. There are enterprise versions of this, but simple and cheap works for me.
