[The Soup Nazi]

FINALLY, this is how you do it (oooh, but it's through international coordination - gasp! - the horror!):

EU to link national COVID-19 tracing apps together

BRUSSELS (AP) — The European Commission on Monday launched an EU-wide system devised to link national COVID-19 tracing apps together in its latest effort to slow down the coronavirus pandemic. Following testing in different EU countries earlier this autumn, the bloc's executive arm said the system got underway with three national apps — Germany’s Corona-Warn-App, Ireland’s COVID tracker, and Italy’s immuni — now linked through the so-called interoperability gateway.

Sure, a number of technical things can go not exactly as planned. But this is part of how New Zealand fought and is fighting the virus in an exemplary way, SO WHY THE FUCK NOT TRY IT instead of just "recommending" to wear masks...