So i have this baby harvester cluster plugged into some cyberpower ups. I want to use nut (or whatever) to shut stuff down if there's a power outage. is there some cool harvester native thing i should be doing?

Depending on your setup (i.e. does your compute have IPMI/Redfish compatible iDRAC/iLOM), you "could" enable the Harvester Seeder plugin and then use the Harvester APIs to, for example, put a host in maintenance mode and then power it off. See the "Power Related Operations" section here: Harvester Seeder | Harvester I do not personally have this use case, but it seems a reasonable path to investigate.

neat! i'll check it out.