In the book I'm reading at the moment, Abbadon's Gate - James S.A Corey, there is the concept of a "Family Feed".
An asynchronous platform where family members post life updates and questions for consumption by other family members at their leisure.
We have feeds like this now ( Facebook, Twitter, Mastodon... )- but they normally include vast numbers of friends, family and people we barely know. I like the idea of multiple specific, closed feeds for different social groups one is a member of.
I generally dislike the idea of a 'Group chat ' for life updates. Seeing as its super easy for things to get lost in there.
And, as mentioned, existing platforms lump posts from all the people you 'Follow' into one feed, rather than specific, separate feeds.
It'd be nice to, every week or so, check my family feed and see what everyone has been up too. Optionally interact there, but also not feel any pressure to 'answer'.
social.samathy.space is one server in the network