Keeps a input state and a boolean state in sync with a coffee machine to allow you to remotely or in person be powering the machine off and on without reality and HA getting out of sync.
Requires a helper for the state and a helper for the power switch.
I am driving this personally with a Switchbot and a Moes current sensing switched outlet.
Blueprint is here: GitHub - simonjgreen/coffee_machine_state_manager: Home Assistant automation blueprint to keep reality and HA in sync with a coffee machine