A casino lobby looks like one screen, but it relies on separate systems:...

https://www.start-bookmarks.win/a-casino-lobby-may-look-like-a-tidy-grid-but-each-game-can-connect-to-a

A casino lobby looks like one screen, but it relies on separate systems: provider integrations supply games, while account records track balances and payments. The interface has to make those handoffs clear without exposing the machinery.