503 all your services, just for the city of Canberra (where our politicians congregate to shout insults at each other and legislate favours for their corporate donors).
A few days cutoff for Canberra will give enough momentum to bring us back from the current precipice, where many of Australia's software companies are realistically considering options for relocating out of Australia, and shifting all intellectual property to their newly created company headquartered in places like Singapore or Estonia or USA.
And then reopen again in Australia as a satellite subsidiary branch owned or licensed by the newly created foreign-domiciled (and now non-taxpaying) parent.