3D Printer Control

I’d like to be able to switch off power to my 3D printer remotely. Turning it off automatically when it has finished printing something would be good too. Hey, wonder how much juice it takes to print something?
To resolve these things, I’ve plugged the printer into an Athom Tasmota switchplug, controllable from HA (Home Assistant). So can I detect changes good enough to determine if the printing is finished?
Yes. The HA graphs below show the result when printing my FSM bony fish.

So clearly if the power level is below 50W, the printer is idle. (It is a Voxelab Aquila X2.)
My fish took .6kW of energy to print.

Now to code up a script in HA to automatically turn off the printer when finished printing.

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