First use case is the one we need ourselves:

Community Issue tracking

Think Linear, Click Up, etc... but within a #communikey.

With the repos, wikis, chat, ... related to the community project all in there.

I like the general nature of your spec so much, I now have this question:

nostr:nevent1qvzqqqqqqypzp22rfmsktmgpk2rtan7zwu00zuzax5maq5dnsu5g3xxvqr2u3pd7qyt8wumn8ghj7mnfv4kzumn0wd68yvfwvdhk6tcpz9mhxue69uhkummnw3ezuamfdejj7qpqlumphmxa4vaza094e0xemckx3vnr5vjrzuxg25mta5ug40znjehqpytw45