Thanks- QR codes are not a problem. That's the equivalent of a card with a barcode. Although today was an interesting exercise in frustration with that concept. Visited a client with my brother, and we decided on Burger King as the nearest dealer of carbs. BK signs advised installing a contact tracing app before entry, which seemed not to exist. Even the website failed for this so-called app. Eventually, the manager came out said "just come in and sign the register". Prior to that Akl. Libraries advised that selected libraries would be open, but subject to installing an app for contact tracing- but no mention of which app. Since I already have a library card, a swipe scanner is what's needed. It already knows me and my address, and reading habits. I can observe some app profusion/confusion in this space, unless the Govt. one gains traction.