#activitystreams

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@reiver@mastodon.social · 2d ago
What if web-browsers could render the ActivityPub / ActivityStreams JSON-LD source-code into the document it represents? Fediverse clients can do it — why can't browsers? I previously created a small-net / small-web browser client named SpaceMonkey. It supports protocols such as Gemini, HTTP, HTTPS, Mercury, etc. And, formats such as GemText, HTML, Markdown, etc. It now supports the ActivityPub / ActivityStreams JSON-LD format, too. #ActivitiyPub #ActivityStreams #FediDev #SpaceMonkey
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@reiver@mastodon.social · Feb 01, 2025
We have had 2 speakers hoping for Mastodon to add (ActivityPub) "Article" support. #FOSDEM #FOSDEM2025 #SocialWebFOSDEM #ActivityPub #ActivityStreams #Fediverse #WriteFreely #Friendica
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@reiver@mastodon.social · 2d ago
I think it would be better if instead of Fediverse software outputting the following for ActivityPub/ActivityStreams Notes, Articles, etc: "attributedTo": "@reiver@mastodon.social", It would instead output something more like: "attributedTo": { "id":"@reiver@mastodon.social", "type":"Person", "name":"Charles", "preferredUsername": "reiver", "icon": {...}, "image": {...}, } This way the Activity* document contains everything needed to render it. #ActivityPub #ActivityStreams #FediDev
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@reiver@mastodon.social · 3d ago
Was the original intent of the ActivityPub / ActivityStreams "name" field to be a title? (It seems as if some software is using it that way.) https://www.w3.org/TR/activitystreams-vocabulary/#dfn-name #ActivityPub #ActivityStreams #FediDev
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@reiver@mastodon.social · 3d ago
What should the file-extension for ActivityPub / ActivityStreams documents be. I.e., for application/activity+json data? I've been using .activity Ex: filename.activity (The extension cannot be .json or .jsonld if you want to be able to detect it just based on the file-extension.) What do you think? #ActivityPub #ActivityStreams #FediDev
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@reiver@mastodon.social · 4d ago
RE: https://mastodon.social/@reiver/116471973046146144 If an ActivityPub Actor is something that has an "inbox" or an "outbox" (i.e., it could have just one or both) then — Perhaps we should also be talking about "sources" and "sinks", too. Where — An ActivityPub Source is an Actor with just an "outbox" (and no "inbox"). And, an ActivityPub Sink is an Actor with just an "inbox" (and no "outbox"). #ActivityPub #ActivityStreams #FediDev
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@reiver ⊼ (Charles) :batman: @reiver@mastodon.social
What makes an ActivityPub Actor and Actor? I think it is probably a bad idea to just restrict it to things with 'type': "Application", "Group", "Organization", "Person", and "Service". Restricting it to just those would mean you couldn't have new actor types (and sub-types) in the future. So then, do we do it in a duck-typing way? And if "yes", how? Maybe if something has an "inbox" OR and "outbox" it is an Actor. I.e., it could have just one of those. #ActivityPub #ActivityStreams #FediDev
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@reiver@mastodon.social · 4d ago
And, if this is the case, then every ActivityPub / ActivityStreams library should be on the look-out for "inbox" and "outbox" fields on everything. Doesn't matter what it is. An "Event", an "Image", a "Link", a "Place", a "Video", even things in other namespaces. #ActivityPub #ActivityStreams #FediDev
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@reiver@mastodon.social · 4d ago
What makes an ActivityPub Actor and Actor? I think it is probably a bad idea to just restrict it to things with 'type': "Application", "Group", "Organization", "Person", and "Service". Restricting it to just those would mean you couldn't have new actor types (and sub-types) in the future. So then, do we do it in a duck-typing way? And if "yes", how? Maybe if something has an "inbox" OR and "outbox" it is an Actor. I.e., it could have just one of those. #ActivityPub #ActivityStreams #FediDev
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@reiver@mastodon.social · 4d ago
Can an ActivityPub 'Place' also be an Actor? https://www.w3.org/TR/activitystreams-vocabulary/#dfn-place With followers, an outbox, etc. That could be useful for both real-life places, and fictional places in stories, and in video games. #ActivityPub #ActivityStreams #FediDev #FediFiction #FediGames
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@reiver@mastodon.social · 5d ago
Should an ActivityPub 'Place' be used to represent a fictional place? https://www.w3.org/TR/activitystreams-vocabulary/#dfn-place Such as a fictional place in a story, or a video game? #ActivityPub #ActivityStreams #FediDev #FediFiction #FediGames
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@reiver@mastodon.social · Apr 23, 2026
Would you play a Fediverse game? Would you play a Fediverse game about Meta Humans? #ActivityPub #ActivityStreams #FediDev #FediGames #Fediverse #Games #VideoGames #MetaHumans
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@evan@cosocial.ca · Apr 13, 2026
#ActivityBud - the exciting practice of intentionally misinterpreting the #ActivityPub and #ActivityStreams specs in order to derive ridiculous conclusions. By analogy with the movie Air Bud, where the team proved that there ain't no rule that a dog can't play basketball.
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