Board
Your board positions, who holds them, and what each one is told about. Alerts go to whoever holds the position. If nobody does, they go to the President.
Spending rule for every position
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Board members
Lifeguard and gate logins
A login that only shows the check-in page and the person's own lifeguard shifts. No member contact details, no money. Use one for a shared iPad at the gate, or one per lifeguard.