Fediverse by design is ideal for institution-based social networks for sure. Each school hosts a server and federates with the nearby institutions (possibly in a limited manner so it’s still focused on your group but you can easily interact with other people from your city)/school district too.
Maybe the school has two servers: one for active students, another for alumni. Some configuration for letting people say “only fill my main feed with stuff from my graduating class +/- 2 years” and so on. When you graduate, you get auto migrated to the next server.
Hometown sort of tries to do this for cities as a Nextdoor replacement (and even nextdoor for a long time tried to keep things hyper local with optional visibility elsewhere until they caved to ad money and NIMBYism)
Kickstarter coming sometime soon to get some more resources going for it and related projects. will be interesting to see if it’s effective.
https://www.kickstarter.com/projects/pixelfed/pixelfed-foundation-2024-real-ethical-social-networks
Dan tends to work on too many things simultaneously (which isn’t bad per say, and he thrives doing so) which means things get stalled and its a little hectic. Hoping more funds and community excitement will help spread the work out more and allow him to keep working as he does without other projects being on pause in the meantime.