Staff & permissions
Invite by email. Four roles. Nothing else to learn.
Owner, manager, shift manager, staff. Each role sees what it needs and nothing more. Invitations go by email. Access is revoked from the same screen.
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Who sees what.
The owner sees all venues and all numbers. The manager runs one venue. The shift manager handles tips and the current shift. The staff member sees orders for their tables. The same model whether you are one room or twelve.

Staff management. Invite, role assignment, removal, one screen.
What is in this
Email invitations
Send, accept, done. The staff member creates a password on first sign-in.
Four roles
Owner, manager, shift manager, staff. Each scoped to what they need to do.
Per-venue scope
A manager at one venue does not see another venue's numbers, even within the same group.
Revocation in one click
Access ends immediately. The previous shift's tip attribution stays in place.