How much Fediverse software would fail if the "to" or "cc" of an activity contained:

https://WWW.W3.ORG/ns/activitystreams#Public

Rather than:

https://www.w3.org/ns/activitystreams#Public

I.e., an upper-case Internet domain.

WWW.W3.ORG versus www.w3.org

(What about WwW.w3.OrG?)

#ActivityPub #FediDev

ActivityStreams 2.0 Terms

This document lists the terms used for the ActivityStreams 2.0 protocol and its stable extensions, and provides a namespace so each term has an HTTP IRI.

Boundaries between AP and AS2, and between AS2 and non-AS2 https://socialhub.activitypub.rocks/t/boundaries-between-ap-and-as2-and-between-as2-and-non-as2/8681

Looking to hear from #ActivityPub and #FediDev audiences: When do you expect a link (either an id or a Link.href) to have an AS2 representation? When do you expect it might *not* have one? Is there a good way to make those expectations clearer or more explicit? Please weigh in.

Boundaries between AP and AS2, and between AS2 and non-AS2

Also available at: Boundaries between AP and AS2, and between AS2 and non-AS2 from a on 2026-05-12 ([email protected] from May 2026) Boundaries between AP and AS2, and between AS2 and non-AS2 from a on 2026-05-12 ([email protected] from May 2026) Context: `href` has inconsistent typing in the term definition (AS2-Vocab vs jsonld context) · Issue #595 · w3c/activitystreams · GitHub Re: Call for consensus/feedback: inconsistency between AS2's normative context document and normative v...

SocialHub

Does #mastodon support a root level domain handles yet? Like, say, user having his AP-enabled single-user website under example.com having a @example.com handle instead of @[email protected]

#help #fedidev #fediverse #mastodev #activitypub #needhelp

ActivityPub specifications don't seem to provide a way to do Idempotent POSTs to your outbox.

That seems like a problem for C2S to me.

Networks are unreliable. You cannot tell the difference between an unreceived request vs an unreceived response. You'll get unwanted identical duplicate activities.

Although it isn't difficult to solve — a convention just needs to be picked.

For example, a new Idempotency field could be added to the JSON-LD payload.

#ActivityPub #ActivityStreams #FediDev

I just migrated my personally hosted Bluesky PDS to Northsky.social because I was tired of paying Hetzner for something I rarely use.

Instead I'll happily donate similar funds to Northsky.

I wouldn't say it was a grandma friendly process, but it worked as expected.

I'm still a bit upset the fediverse in general doesn't have this specific process figured out yet.

This is my social home and that's not changing. I hope to see progress on true account migration soon.

#FediDev

#Hashtags don’t scale

#fedidev

Jetzt online: 🙌

Der #2MR-Plattform-Gipfel 🌄 mit @mellifluousbox von @Mastodon und @sebastian.eurosky.social von #Eurosky:

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Wie können Fediverse und Eurosky voneinander profitieren und offene Netze stärken? - Der Plattform-Gipfel

PeerTube

Jetzt online ansehen:

Aufzeichnung der #2MR-Session »#Technik für Tomorrow« ⚙️ für demokratiestärkende #SocialMedia
👉 https://watch.2mr.social/w/aRrRjoatJgTKcfmv4GcGUv

Moderiert von @melaniebartos 🙏 und mit Tech-Projekten von:
🔹 @sabrinkmann von @54gradsoftware #Flensburg
🔹@honeywinter von @fediway #Leipzig
🔹 @samuel_p von @ossrox #Magdeburg
🔹 Björn Adamski, 3Q Video

🚀

#FediAdmin #OpenWeb #FOSS #CivicTech #WissKomm #Fedidev

Technik for 2MR - What Works IX: 5-Minute Wonders

PeerTube
FediForum Demos & Keynotes

Demos and keynotes from the the FediForum unconference. Each event has its own playlist.

Spectra Video

I've finally done it! My Grand Unified Theory of IT is complete thanks to #AI! It's actually not that complicated! I call it, "The Zero-Consequence Model":

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