The developer of ESPurna is a lovely person and fantastically responsive to ideas on how to extend the firmware. I personally find the offline scheduling to be

The developer of ESPurna is a lovely person and fantastically responsive to ideas on how to extend the firmware. I personally find the offline scheduling to be a life saver - I can have smart-ish home devices that 'just work' even when I don't have or keep swapping between different smart-home controllers.