@swaggboi I really want a "dumb" appliance store. My fridge should keep things cold, my toaster warm things up, my printer put ink on thin slices of dead tree, and my TV show whatever video stream I send it. None of these need to reach out over the network. Please sell me well made, well functioning, single use devices, that serve their purpose well.
Regarding machines that are turned on for a single "cycle" (like dishwashers): the way I schedule my dishwasher with a mechanical sequencer is that I switch the power off, set the sequencer in the "start" position and cause power to be reapplied at the time I want it to start. This suggests that another desirable property is that the state of the device is preserved across power failures.
BTW. "Cycle complete" notifications can be had by observing power draw. I haven't implemented that for my dishwasher, but am pretty sure it would be reliable (mostly due to the heater used for drying at the end).