Implements the ActivityPub protocol for your site. Readers will be able to follow content on Mastodon and other federated platforms that support ActivityPub. Responses are possible too (Like, Announce, Reply) with more to come.
Check the README on drupal.org for all features, installation and configuration: https://git.drupalcode.org/project/activitypub/-/blob/1.0.x/README.md
Development of the lite version happens in the 1.0.x branch on https://drupal.org/project/activitypub.
The extended version will be developed at some point on GitHub at https://github.com/swentel/activitypub and will be synced back for bug fixes and releases.