Go live
Set a subdomain and the station serves at its own address, with a QR code beside it. Any browser opens it, with nothing to install. Take it off live and the address stops serving.
Open it on any device
Staff open the station's address on a phone, tablet or computer they already have and sign in. Nothing is paired or installed. On a shared till a colleague signs in beside them, and each switches back with a PIN.
Say who may run it
Who can configure this station and whose daily portal it is are set independently, so someone can be handed a station to work on without being able to change it.