So at the moment we have the human who makes the feed as the only item in the attributedTo property.

Example feed on piefed.social:

{ "@context": [ "https://www.w3.org/ns/activitystreams", "https://w3id.org/security/v1" ], "attributedTo": "https://piefed.social/f/fediverse/moderators", "endpoints": { "sharedInbox": "https://piefed.social/inbox" }, "followers": "https://piefed.social/f/fediverse/followers", "following": "https://piefed.social/f/fediverse/following", "id": "https://piefed.social/f/fediverse", "inbox": "https://piefed.social/f/fediverse/inbox", "moderators": "https://piefed.social/f/fediverse/moderators", "name": "Fediverse", "outbox": "https://piefed.social/f/fediverse/outbox", "preferredUsername": "fediverse", "publicKey": { "id": "https://piefed.social/f/fediverse#main-key", "owner": "https://piefed.social/f/fediverse", "publicKeyPem": "-----BEGIN PUBLIC KEY-----.....-----END PUBLIC KEY-----\n" }, "published": "2025-02-26T23:19:40.672055+00:00", "sensitive": false, "type": "Feed", "updated": "2025-02-26T23:19:40.672058+00:00", "url": "https://piefed.social/f/fediverse"}

attributedTo points to /moderators:

{ "@context": [ "https://www.w3.org/ns/activitystreams", "https://w3id.org/security/v1" ], "id": "https://piefed.social/f/fediverse/moderators", "orderedItems": [ "https://piefed.social/u/rimu" ], "totalItems": 1, "type": "OrderedCollection"}

At this moment we also have the moderators property, but as I have found out in this thread thats not a real property in AP as yet, so I'll adjust the code to not use that in the future.

We made the /moderators be a collection to give us some future proofing. Ie right now one person can own a given feed. But if we want to add the ability to have more than one person moderate a feed in the future its easier if this starts life as some kind of collection, so we can just add items to it if we want in the future.

Over at PieFed we, like Lemmy and Mbin have gotten requests for a way to have a grouping of communities type feature.

We experimented with trying to use the existing Group actor, but found that it was not a perfect fit. So we decided that a new AP Actor was the way to go.

The linked Fep PR defines the Feed actor, based on how its working in production on Piefed instances.

WIP FEP PR