CoronaCheck is the Dutch national COVID app to prove that the user has been vaccinated or has been tested, using QR-codes. It was designed with privacy in mind. But as with many digital systems, the interfacing with the real world can be a problem. And our iHub member Bernard van Gastel was a guest in the Dutch science TV show Atlas to talk about the QR-codes and what the problems with interfacing between the digital and analog world are.
You can watch back the episode.