Hi, Within our district, we have multiple autonomous group with their own activities. We all agree it's nice and okay for group members to join activities in other groups. Consensus about information sharing is tough. All have their own habits and technical (IT) skills are scarce. The idea now is to have one from each group to arrange the communication between the groups, and that one distribute the event's in their group. I think it's a lot of work and causes delay's etc.

My idea now: A self hosted website with an event calendar. It's okay for the world to see. People can just send an invite from their own calendar to it, and if the sender is on a whitelist, it gets accepted and placed/removed/updated (whatever the invite is)

Anyone any idea if something like it exists?

Optional: the events get sent out from the website (using it's own sender id) to subscribed members. And in a perfect world, their responses would end up at the original meeting planner so they have an idea of how many could show up. And I can think of many more nice features (subscribe only to certain groups etc) but there is also an idea to keep it simple.