Using a few Shelly devices, some python code, and some clever Home Assistant automations, I'm monitoring and controlling my mining rigs (only running two at the moment due to price and temperature).
If you're not monitoring your home rigs with Home Assistant, what are you even doing?
Here's the control panel for the full automation setup that controls when the miners are active based on price and outside temperature--accepting that when it's cold enough, we'll tolerate a lower price.
An expanded view of the temperatures, energy usage, fan speeds, and room temperatures