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I am outputting ActivityPub/ActivityStreams content for the listing of what is in a directory.

Think of it as the AP/AS version of output from the `ls` command

AP/AS has a whole bunch of stuff that can be used to represents files. Even sub-types of files

https://www.w3.org/TR/activitystreams-vocabulary/#object-types

And, while AP/AS has 'Collection' (and 'CollectionPage') —

https://www.w3.org/TR/activitystreams-vocabulary/#dfn-collection

AP/AS doesn't have a 'Directory' type (as a sub-type of 'Collection')

#ActivityPub #ActivityStreams #FediDev #FediDevs #Federation

@maddyunderstars

Yes, I am creating a high performance read-only HTTP server for static files — that has built-in support for ActivityPub/ActivityStreams.

It also supports (the read operations of) WebDAV. So, it can be used as a shared read-only drive in operating-systems (OSes) that support WebDAV.

@reiver

This might be a misunderstanding.
Any property in ActivityPub can have multiple properties [except the few marked as 'functional'].
It does not need a special subtype.
If we have type ['CollectionPage', 'Collection', 'wd:Q201456'], it is a directory in a directory (?)
We have these nested structures in fedigeo anywhere, for example the UNESCO World Heritage or IATA Collection etc. We use wikidata (the data of wikipedia) so that anyone can use the label and infos for "directory" in any language …

@julian@activitypub.space When I asked @reiver@mastodon.social last time, he said he’d make sure FediCon 2026 doesn’t overlap with COSCUP 2026, but I’m not sure how it’ll turn out.

@smallcircles

I agree that AP/AS has its limitations and shortcomings, but —

I want this to work with Fediverse software.

If I choose a Linked-Data namespace not supported by any Fediverse software, it won't be.

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

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

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

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

@chrysn

I was not aware of HDT.

I will look into it.

I used to not like JSON-LD. And then I got exposed to CBOR. And, since then, I ended up liking JSON-LD more than I did before.

https://j12t.social/@j12t/114581086678041245

...

I was looking for performant ways of storing JSON-LD data, so that it can be looked up, queried, etc.

CBOR might actually be a way of doing that.

...

For me that is an odd realization given me liking JSON-LD is a reaction to CBOR.

#ActivityPub #ActivityStreams #CBOR #CBORLD #FediDev #JSONLD

@revstanton

Would you be interested in trying vibefed with your Inkwell development?

https://github.com/reiver/vibefed

It is a Claude Code plugin for Fediverse development.

I made it to help those using LLM coding tools (such as Claude) do Fediverse development.

@reiver Hey there! This is super interesting, and I’m definitely going to check it out. I actually woke up this morning planning to work on fediverse integration issues since comments and boosts weren’t going through, so this is very timely. Thanks for sharing it. I’ll let you know what I find once I’ve had a chance to dig in.

A question about #ActivityPub account migration.

Is it possible to use it to combine multiple accounts into one?

That is, can I `movedTo` all my old accounts to one new account, and set *several* `alsoKnownAs` on my new account's actor?

@Edent yes