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$$14808
https://mastodon.social/users/reiver posted on Mar 19, 2026 10:38
In reply to: https://mastodon.social/users/reiver/statuses/116255378070874152

6/

Continuing to look for an alternative to "attachment" (for properly supporting an Actor specifying a list of Service actors associated with it) —

Maybe a custom top-level attribute would be useful.

Maybe something like:

"service": [
{
"rel":"callpub",
"href":"https://videocalls.example/users/joeblow"
}
]

Although perhaps that is not much better than "attachment", if you just care about calls

So —

#ActivityPub #ActivityStreams #AudioCall #Call #FediDev #Fediverse #VideoCall

https://mastodon.social/users/reiver/statuses/116255404164382400

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$$14803
https://mastodon.social/users/reiver posted on Mar 19, 2026 10:25
In reply to: https://mastodon.social/users/reiver/statuses/116255337024203067

3/

But, what about the non- fall-back situation where software could properly support this (when an Actor specifies a list of Service actors associated with it)‽

I think some might say, put the associated Service actors in "attachment". And, semantically I think that would work with ActivityPub, but — I have a very strong dislike with putting everything in "attachment" (and "tag"). It makes parsing difficult.

So —

#ActivityPub #ActivityStreams #AudioCall #Call #FediDev #Fediverse #VideoCall

https://mastodon.social/users/reiver/statuses/116255354476019561

$$14804
https://mastodon.social/users/reiver posted on Mar 19, 2026 10:28
In reply to: https://mastodon.social/users/reiver/statuses/116255354476019561

4/

Looking for an alternative to "attachment" (for properly supporting an Actor specifying a list of Service actors associated with it) —

I think using "alsoKnownAs" and "sameAs" would be a poor choice. And, the semantics are wrong.

For example: a Service actor might represent my mobile phone (or software on it). My phone is not me. It is something I have.

So —

#ActivityPub #ActivityStreams #AudioCall #Call #FediDev #Fediverse #VideoCall

https://mastodon.social/users/reiver/statuses/116255367658585055

Conversation

$$14802
https://mastodon.social/users/reiver posted on Mar 19, 2026 10:18

1/

AFAIK, there isn't a way for an ActivityPub Actor (such as a Person actor) to specify a list of Service actors associated with it.

...

For example, imagine that there is a Service actor that represents a way to make a video call to me.

And, for example, I have my Mastodon Person actor.

And, I want to let people know about it (and other Service actors associated with me).

How do I do that using AP, etc?

...

#ActivityPub #ActivityStreams #AudioCall #Call #FediDev #Fediverse #VideoCall

https://mastodon.social/users/reiver/statuses/116255326815090580

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