The camp channel
Scanning this adds Fauxliage to your radio. It won't reboot and it won't touch your other settings.
Campmates only
The code contains the channel key, so it isn't published here. It's on your printed card, and signing in will show it here.
Worth knowing
Treat this channel as semi-public. The key ends up printed on cards carried around a city of seventy thousand people — anyone who photographs one can read everything on it.
On iPhone, scan with the Camera app and check the banner says Meshtastic. If it says Safari or shows a web address, the app install didn't finish and you'll need to enter the channel by hand from your card.