What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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@smallcircles🫧 socialcoding.. @evanEvan Prodromou An AS2 Collection cannot be a timeline (in general). It’s not even ordered. An AS2 OrderedCollection (a subtype of Collection) might be ordered by time or not, so it’s also not a timeline (in general). When they are ordered by some time value (unspecified in AP) they are often called “streams” in the spec. The Mastodon content timelines are not the same as AP activity streams although a filtered AP stream can be transformed to a content timeline.

@steveSteve Bate I think
we need to emphasize that timelines can be built from regular collections, even unordered ones, by using some intermediate representations specific to the type of timeline that a client wants to render.

The fact that the specification does not directly support a mapping between a collection and a responsive timeline, *DOES NOT MEAN* one can't be built from it, only that it requires a little more effort on the client side.

My goto example is how rich mail clients allow responsive mailbox representations on top of a much less expressive collection method that IMAP provides compared to ActivityPub.

@smallcircles🫧 socialcoding.. @evanEvan Prodromou

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The Privacy Working Group has published the first draft of a Group Note titled Considerations for Reviewing Differential Privacy Systems (for Non-Differential Privacy Experts). The purpose of this document is to provide a high level understanding of the trade-offs that are required when designing and deploying differentially private systems (e.g., privacy, utility, number of trusted parties).
w3.org/news/2026/group-note-dr

W3C logo
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Loops Starter Kits are consent driven.

This means:
- You can only add supported accounts (eg: Loops only, but soon Mastodon + Pixelfed)
- Supported accounts may require approval first
- You can remove yourself from any Starter Kit at any time
- You get notified if you've used a Kit when accounts get added or removed
- You can opt to only allow accounts you follow to add you (with automatic approval or manual)
- You can opt-out entirely without having to reject every request

Loops Starter Kits Edit Page
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Klarnamenpflicht und Altersgrenzen sind das Gegenteil von evidenzbasierter Politik. Wofür genau soll das gelten? Fünf Big-Tech-Apps? Alle sozialen Medien? Smartphones? Internet-Zugang? Völlig unklar. Es geht nicht um Fakten, nur um Gefühle. "Die Politik muss was tun, für die Kinder/Demokratie."

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