@Edent another vote for Tasmota - I’ve got one monitoring the washing machine to do exactly your notification. Fiddling around with things, I realised that you can also use it to report the stage of the cycle, because the current draw changes with activity, so I’ve now got a sort of crude reverse-engineered time-to-go indicator
@timd Ta! What do you use to monitor and report? HomeAssistant or something else?
@Edent the plug is also quite old - I think Tasmota plays a lot more nicely with the ecosystem these days, so doing it from scratch now would inevitably be much more streamlined