Visit Australia, get the notice, go back to wherever you live and work, and either implement the backdoor or get kicked whenever you return to Australia one more time.
I mean I love you people and I believe you are entitled to freedom, privacy and security but that is not a choice I’d make lightly. I do not envy Australian developers right now, not only is their marketability severely reduced, the emotional cost of taking a stand can be downright crushing to the spirit.
This is just.. evil. There is no other word for it.