This design is just broken, because if I buy a device that is enabled for this functionality there's no way for me (wearing the hat of a developer or an end use

This design is just broken, because if I buy a device that is enabled for this functionality there's no way for me (wearing the hat of a developer or an end user) to replace the web half with something else of my own choosing. Even if that website burns down, falls over, sinks into the swamp, and is purchased by scammers, nope, I can't make a substitute website that can work with the device I purchased.