I wonder if it could be possible to write apps which can take data from all group apps to give the user an overview of all group app data.
Especially for a calendar this would be great. There could be normal Webxdcs in groups and one above-group-level Calendar rendering all my personal events. From there it would be easy to accept or cancel events because of the total overview.
Another app could aggregate all highscores of games so that I can see where someone beats me.
Or take 3 groups with one ToDo list each
. One above group-level app could display all pending tasks at once
.
Sure, a possible solution could be to create a huge group with all possible event attendees, but each attendee have to add their possible attendees so that, in the end, each delta chat user ends up in this group. (Because, you know, each human on earth is connected over 3-5? persons with each other)
Maybe, allowing updates for those apps would make things complicated, but a read-only permission would be enough to decide, if I can attend an event or to display other important personal aggregations.