Everyone listed shows in the rankings from the start. For doubles, type Anna / Ben when creating the match.
Save each player’s Reclub profile picture beforehand (with their OK) and drop them in. Photos are stored on this laptop, so they show even without internet.
Applies to queued and in-progress matches. Changing a court’s level moves it to that ranking group.
The server also saves automatically after every action and keeps rolling backups in data/backups.