I’ve got a tp-link smart plug that monitors power. The automation triggers when it draws less than a watt (a few minutes after it completes the cycle, it turns off). I have the duration set to 5m, so a slower soak cycle shouldn’t trigger it (not tested yet).

Wireguard + adguard means home ad blocking anywhere I want it.

Home assistant is lights, switches, sensors, blinds, fans, heat/cooling, and more. I have an automation that tells me 5 minutes after the wash is done so I can move laundry into the dryer, and another one that tells me if anyone left the back door open, telling me to close it. (My dog can open it from outside).