Ask HN: How do you planify your sport sessions?

Say you want to play a 4-people team sport regularly.

You have more friends than that who are usually happy to play, but all of them have with their own constraints. It is therefore quite a challenge to plan every week 2 sessions (or more) with exactly 4 available players.

Would you have any tool that would help ?

Ideally,

- no manager needed -> the group just organize itself thanks to the app.

- any member of the group can clearly view when sessions are proposed with the number of remaining seats / who will attend

- the tool automatically reset the calendar every week (or allow to book events on a 'x-days' sliding window)