Can I change the web address of my gallery?

Yes — Settings lets you set a short readable name for the event, and the old address stops working once you do.

Your event is always reachable by its own long identifier, but you can also give it a short readable name — between 3 and 100 characters — which makes the link something you can read out loud.

It must be unique across Mosaikin, so a very common name may already be taken. Change it and the previous readable link stops working, so anything already printed with the old one becomes a dead end. Settle on it before the posters go to print.

QR codes are safe from this

The QR code encodes the event’s permanent identifier, not the readable name, so changing the name does not invalidate a printed code.