According to this post:
Moodle has plans to provide an education-centered social media platform federated using ActivityPub, the protocol used by Mastodon.
Mastodon.ART — Follow friends and discover new ones. Publish anything you want & not just art of all types: links, pictures, text, video. All on a platform that is community-owned and ad-free. Moderators: @Curator @ChrisTalleras @EmergencyBattle @ScribbleAddict @Adamk678