Your scannable QR codes.
Each QR encodes a stable address like /qr/whatsapp. The destination is stored in
config/links.json and can be changed at any time. The printed and shared QR keeps working.
Need a new one? Add an entry to config/links.json like
"newslug": "https://...",
then reload this page. The QR at /qr/newslug will appear automatically.