Sounds like a smart socket might do what you need, externally, with some coding.

My $300 G84 isn’t worth nicking. Does all I need nicely though.

Aah well, time for a brake.

Principal.

(yeah I know it’s rude to correct spelling, but if you want to impress him, spelling his title correctly may help.)

I don’t think GPU are used for bitcoin any more? You need ASICs to be able to hope for any return on investment.

Sounds a bit like Rustdesk. I’m happily hosting a relay on my VPS but the ‘account’ features don’t work for the free version. I just keep them in a note instead.