We wrote a note explaining the Keychat friend-adding mechanism. We weren't sure how to name the QR code, so we still call it a QR code. This name can be misleading, as it might be mistaken for Npub.

nostr:note1ua60g8th7kguquz94m5s4teaar50xlczu2my30heq27d3vucl5aslsfxew