We're currently being reminded that the "Team of 5 Million" is more like the "Team of Can't Be Stuffed" when it comes to poster scanning.
For Saturday, January 23, only 286,646 people scanned at least one QR code poster, according to Ministry of Health statistics.
But with the Northland outbreak, scanning matters more than ever - and it's a good time to remind people of an iPhone hack first highlighted by Dr Michelle Dickinson (aka Nanogirl) earlier this month.
Once it's set up, you can start NZ Covid Tracer, ready to scan an app, with two taps to the back of your iPhone.