I’ve never bothered to reverse engineer the protocols they use between the main chip and ESP, but I have hooked the main loads, indicator LEDs, and push buttons into my own module. Air purifier, robo vacs, coffee pots, sprinkler controllers, garage doors.
The Shelly uni is awesome for stuff without dc power supplies. I’ve got one in my gas cooktop, and another in the range hood to run the fan any time a burner is on.
You kinda only need the email credentials. Shouldn’t the rest be resettable from that point?
Is there anything that needs MFA that they won’t have?