A free open source collaborative online calendar. It allows local communities to share a common calendar that anyone can post events to, even people without an account. (Posts are moderated to prevent spam though.) You can also interact with Gancio through the Fediverse, and it has RSS support for people who want to follow through feed readers.
Fediverse address:
@gancio@mastodon.cisti.org
Independent local news service for Boston, Massachusetts, USA.
Fediverse address:
@universalhub@mastodon.online
Free open source online platform for organising community activism and volunteer initiatives such as food sharing etc. Anyone can set up their own Karrot site, or join an existing site.
Fediverse address:
@karrot@fosstodon.org
Provides local news and community for Oklahoma, USA through a blog, podcast, newsletter and online forums/chat rooms.
Fediverse address:
@blogoklahoma@social.tulsa.ok.us
Worldwide free open source software community which creates all kinds of popular useful projects such as the Plasma desktop, Kdenlive, Krita and lots more.
Fediverse address (main):
@kde@floss.social
Fediverse address (videos):
@kde@tube.kockatoo.org
Fediverse address (conference videos):
@kde@conf.tube
Fediverse address (Spanish language community):
@kde_espana@floss.social
Fediverse address (French language community):
@kdefr@framapiaf.org