One would have to exist solely in the Apple ecosystem for this to be viable, surely? Surely most people on HN have at least one device that isn't Apple!
Yes, it's only convenient on Apple devices. But it's still doable if you don't access that much stuff on other devices, e.g. when I need to access something on my Windows computer (which basically exists to run Microsoft Flight Simulator), I just manually retype passwords from my iPad.
