Watch the shared draw
Show phase, countdown, revealed numbers and the previous completed draw on a large display.
I helped give one draw two scales: a large shared board and a phone interface.

The number board is meant to be readable from across a room. The phone handles the party interaction. Both follow the same underlying game.
The interesting problems are ordinary ones: an approximate countdown, stale data, reconnecting, invitations and temporary party state.
Show phase, countdown, revealed numbers and the previous completed draw on a large display.
Use an invitation to bring the phone interface and display into the same temporary party.
Mark stale data, suppress an unreliable countdown and recover from connection or authentication failure.
Display sourceThe number board, countdown logic and read-only snapshot handling.Party and phone interfaceInvitations, temporary party state and group-chat presentation.Browser evidenceLandscape and mobile fixtures, failure cases and deployment records.The display and party code are saved with landscape and mobile examples. The screenshot uses a synthetic draw from a browser test.