Link: gitlab.com/edent/activitypub-single-php-file/

A single PHP file which acts as a basic ActivityPub server.

activitypub mastodon

Link: seb.jambor.dev/posts/understanding-activitypub/

Understanding ActivityPub - Part 1: Protocol Fundamentals

Und es gibt drei weitere Teile: Teil 2, Teil 3 und Teil 4.

activitypub mastodon