How to Avoid Too Many Tiny Volunteer Shifts
Combine related tasks into one Proximatic shift. A volunteer can sign up to set up the welcome desk, and you can see that someone will do the whole job.
“Put out pens,” “place signs” and “set out name tags” are useful tasks. They don't need three separate reservations when one person can prepare the whole welcome desk.
Give that person one useful job in Proximatic: Welcome setup, 8:30–9, with the tasks in its instructions. They can choose the shift once, see what it includes and get a confirmation for the whole commitment.
The roster becomes easier to run as well as easier to join. A name on Welcome setup tells the lead who is preparing that station. An opening tells you that the whole job still needs someone. You don't have to inspect three tiny signups and work out whether the same person took all of them.
Keep a separate shift when a task needs different hours, skills or a different person. Offer the whole job in Proximatic, with the smaller tasks in its instructions. A volunteer can take responsibility for getting the desk ready with one signup.