Your Home Feed is the inbox of an ActivityPub actor — in particular YOUR ActivityPub actor.

There could be an actor for each hash-tag, too.

You could even do Del.icio.us like things — and have actors for intersections of hash-tags, too.

These hash-tag actors' inboxes would need to be readable by anyone.

...

This could be a more ActivityPub like API alternative to Mastodon's "GET /API/v1/tags/{name}" API.

#ActivityPub #FediDev #FediDevs #Fediverse #HashTag #HashTags