Preparing staff scheduling software with honest hours
Write down who genuinely does what — the honest version, including the service somebody technically can do but never should. Enter real working hours, including the person who starts late on one day a week, and put the known holidays in before the season. List only the resources that really constrain you; a room you have three of is not a constraint. Say what each type of work requires, and be strict about two-person jobs, because those are the ones that quietly fail. Then check a normal week against the schedule and look for the places where you would still have to ask somebody.
No rotas, payroll or HR
It answers who and what is available. Deciding how people should work is management, not the platform’s job.