GNU social
GNU social (previously known as StatusNet and Laconica) is a free and open source microblogging server written in PHP that implemented the OStatus and ActivityPub standard for interoperability between installations. While offering functionality similar to Twitter, GNU social seeks to provide the potential for open and distributed communications between microblogging communities. Enterprises and individuals can install and control their own services and data.[5][6]
Other names
StatusNet
Laconica
Evan Prodromou et al.
Diogo Cordeiro and GNU social Developers
More than 25 languages.[3]
At its peak, GNU social had been deployed on hundreds of interoperating servers,[7] however has since fallen into disuse as competing platforms like Mastodon have taken its position as the most popular federated microblogging server.
Later on in its lifespan, the project split into two separate branches, v2 and v3. As of August 15, 2022, there had been no new commits to the repository for the v2 branch,[8] while the v3 branch stopped receiving commits not long after, in November 25, 2022,[9] making the project essentially defunct.