WordPress now offers official support for ActivityPub
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Mia Sato writing for The Verge (Apple News)
In the case of a WordPress.com blog, audiences will be able to follow a publisher through other federated platforms like Mastodon. Responses on other platforms will automatically turn into comments on a publisher’s WordPress post, allowing them to interact directly with off-platform audiences. The setting is available across WordPress sites on free, personal, and premium tiers — millions of blogs will now be able to join the fediverse in a few seconds.