Mastodon is free and open-source software for running self-hosted social networking services. It has microblogging features similar to Twitter, which are offered by a large number of independently run nodes, known as instances, each with its own code of conduct, terms of service, privacy policy, privacy options, and content moderation policies.

Peertube is a free and open-source, decentralized, ActivityPub federated video platform powered by WebTorrent, that uses peer-to-peer technology to reduce load on individual servers when viewing videos.

HealthPub™ an ActivityPub federated application supporting Americans' access to healthcare, currently under develpoment.