Venue staff
Pair this tablet.
Sign in as the venue's owner or manager. This tablet then gets its own key and shows the rotating check-in code. It keeps working without you signed in.
Check your email
Open the link on this tablet to finish signing in.
Signed in as venue staff
Pair this tablet to a venue.
NOT AN OWNER YET
You are signed in, but not an owner or manager of this venue. In dev, Dieter grants it with the seed command and your staff user ID:
Check in here
Testville Test Venue
Point your phone's camera at the code and open the link. It changes every 30 seconds, so take it from the screen, not a photo.