QR reader
Reads a QR code with this device's camera, or from an image. It runs entirely in this browser: what it reads is sent nowhere.
Read
This is a packed script (from ./wireguard-qr … --nm). Copy it, then
on this laptop, as yourself, run
base64 -d | gunzip | sh
in a terminal, paste it, and press Enter and Ctrl-D. Then clear the clipboard (the Clear button empties it; on KDE also clear Klipper's history).