Tumblr will add support for ActivityPub, the open, decentralized social networking protocol that today is powering social networking software like Twitter alternative Mastodon, the Instagram-like Pixelfed, video streaming service PeerTube, and others. The news was revealed in response to a Twitter user’s complaint about Mastodon’s complexities. Automattic CEO Matt Mullenweg — whose company acquired Tumblr from Verizon in 2019 — suggested the user “come to Tumblr” as the site would soon “add activitypub for interconnect.”
