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.

洪 民憙 (Hong Minhee) :nonbinary: @hongminhee@hollo.social
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Shared by @reiver ⊼ (Charles) :batman:

So, an interesting issue came up in the repo that I've been thinking about: #629.

You know how every server uses schema:PropertyValue in actor attachment for profile metadata fields (like “Website”, “GitHub”, etc.)? Turns out, strict validators like browser.pub reject it, because the AS2 spec says attachment should only contain Object or Link—and PropertyValue is a schema.org type, not an Activity Streams 2.0 type.

The thing is, we can't just drop the type like we did with Endpoints (#576), because Mastodon and others rely on seeing "type": "PropertyValue" to render profile fields. But at the same time, it's technically not spec-compliant.

I'm leaning towards writing a to formalize this existing practice rather than trying to invent a new type (like toot:PropertyValue extending Object), which would be a nightmare to migrate across the whole fediverse.

What do you all think? Has anyone else run into this? Would love to hear thoughts from implementers and spec folks.

Description When Fedify serializes actor attachment properties containing PropertyValue items (used by Mastodon for profile metadata fields), the resulting JSON-LD uses schema:PropertyValue as the ...

PropertyValue attachments serialize with invalid type for AS2 Object/Link validation · Issue #629 · fedify-dev/fedify

Description When Fedify serializes actor attachment properties containing PropertyValue items (used by Mastodon for profile metadata fields), the resulting JSON-LD uses schema:PropertyValue as the ...

github.com · GitHub

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DrALJONES @DrALJONES@mastodon.social
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Shared by Wouter Tebbens ⁂

"It would be much wiser for Thiel to pipe down [about "the AntiChrist"] & enjoy the fruits of Trump’s lucrative fascism in strategic silence."

Thiel's "saying too much, spelling out Silicon Valley’s plan to weaponize religion in a war against democracy."

"When a billionaire dreams of being a prophet, few things can stop him... not even a wakeup call from the Vatican."

thenerdreich.com/peter-thiels-

Also: Benanti “American Heresy: Should Peter Thiel Be Burned At The Stake?”

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Vatican Rebukes Peter Thiel's Antichrist Lectures in Rome

A papal adviser calls Peter Thiel a heretic after his secret Rome lectures on the Antichrist draw global attention and a Vatican rebuke

www.thenerdreich.com · The Nerd Reich

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Calafou @calafou@systerserver.town
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Shared by Wouter Tebbens ⁂

¡El programa actualizado del 2026 ya está aquí! Centros de datos, territorios heridos, seguridad digital, soberanía alimentaria, permacomputing, ficción especulativa y mucho más.Unos días en para resistir, reparar e imaginar juntas.
hlt.calafou.org/es @tunubesecamirioTu nube seca mi río @lenuageetaitsousnospiedsLe Nuage était sous nos pieds @criticalswitch

Home

Un espacio para la innovavión social, tecnológica y poĺítica basada en la autoresponsabilidad y la cooperación en Vallbona de Anoia, Cataluña

hlt.calafou.org

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infinite love ⴳ @trwnh@mastodon.social
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Shared by 🫧 socialcoding..

@smallcircles🫧 socialcoding.. @hongminhee洪 民憙 (Hong Minhee) :nonbinary: @evanEvan Prodromou @steveSteve Bate @jsJohn Spurlock also, w3id.org/fep/fb2a exists for Actor metadata, and w3id.org/fep/e229 describes best practices for extensibility (although that one needs an update per the discussion thread)

Summary card of repository fediverse/fep, described as: Fediverse Enhancement Proposals

fep/fep/fb2a/fep-fb2a.md at main

fep - Fediverse Enhancement Proposals

codeberg.org · Codeberg.org

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Hacker News 50 @hn50@social.lansky.name
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ZJIT removes redundant object loads and stores

Link: railsatscale.com/2026-03-18-ho
Discussion: news.ycombinator.com/item?id=4

How ZJIT removes redundant object loads and stores

ZJIT’s optimizer now removes redundant object loads and stores, improving JIT performance of CRuby’s shape system. This post explains how the optimization works.

railsatscale.com · Rails at Scale

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Horologram @horologram.bsky.social@bsky.brid.gy
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그래서 그 기간엔 정기 급여가 지연될 수 있지만 보통은 근무 계속하면 미지급분은 소급지급(백페이)로 나중에 몰아서 받는 경우가 많고 문제는 그 사이 생활비 공백 연체 수당 처리 지연 같은 피해가 커지는 거임 여러모로 정부에서 일하는것은 극한직업인듯 허허

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Hacker News 100 @hn100@social.lansky.name
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Meta's Omnilingual MT for 1,600 Languages

Link: ai.meta.com/research/publicati
Discussion: news.ycombinator.com/item?id=4

Omnilingual MT: Machine Translation for 1,600 Languages | Research - AI at Meta

Advances made through No Language Left Behind (NLLB) have demonstrated that high-quality machine translation (MT) scale to 200 languages. Later Large...

ai.meta.com

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Hacker News 100 @hn100@social.lansky.name
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Western carmakers' retreat from electric risks dooming them to irrelevance

Link: theguardian.com/business/2026/
Discussion: news.ycombinator.com/item?id=4

‘It’s stupid’: why western carmakers’ retreat from electric risks dooming them to irrelevance

Iran war should be wake-up call about costs of not going full throttle towards EVs as Chinese have done, experts say

www.theguardian.com · the Guardian

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Hacker News 50 @hn50@social.lansky.name
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A pig's brain has been frozen with its cellular activity locked in place

Link: newscientist.com/article/25202
Discussion: news.ycombinator.com/item?id=4

Major leap towards reanimation after death as mammal's brain preserved

A pig's brain has been frozen with its cellular activity locked in place and minimal damage. Some believe the same could be done with the brains of people with a terminal illness, so their mind can be reconstructed and they can "continue with their life"

www.newscientist.com · New Scientist

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Paul Haddad :tapbots_logo: @paul@tapbots.social
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My eyes have been crazy itchy lately, not sure what's going on but my regular eye drops don't help. Benadryl however does, the problem is I take it and in about 15 minutes start feeling better, then about 20-30 minutes after that I start wondering why I'm so sleepy. Then I'm pretty much done for at least a few hours.

Right now I'm on minute 20…

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Horologram @horologram.bsky.social@bsky.brid.gy
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큰 회사 있으면 정말 그 엄청난 병맛같은 관료화? 관료주의의 폐해라고 해야하나 이것에 놀라게 되는데 회사들이 원래 본인들이 하던 전문 분야/업이 가장 중요한데 이게 뒷전이 되고요 내부 행정 조직 관리 및 정치 싸움만 오지게 함 ㅋㅋㅋㅋ 사람 모이면 어쩔수없는것 같긴한데요 대부분 회사들은 이걸 극복못하고 많이들 병맛이 되거나 그냥 정부처럼 되버리는.... 아마 메타도 결국 이런 과정을 거치지 않았나 싶긴합니다 저도 내부자가 아니니 잘 모릅니다만 하여간 메타 다니시는 일반직원을 디스하는것이 아니고 그 윗선을 디스하는것임다 (..)

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Thomas 🔭🕹️ @thomasfuchs@hachyderm.io
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Shared by Dizzy

Reminder in ten years from now that the bankruptcy of companies like Volkswagen and Ford (and why we all drive Chinese cars now) will have been fully the fault of short-term gains oriented greedy CEOs and the politicians that accepted bribes from them

theguardian.com/business/2026/

‘It’s stupid’: why western carmakers’ retreat from electric risks dooming them to irrelevance

Iran war should be wake-up call about costs of not going full throttle towards EVs as Chinese have done, experts say

www.theguardian.com · the Guardian

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Horologram @horologram.bsky.social@bsky.brid.gy
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1. 자사 소프트웨어를 자사 직원들이 직접 써보고 개선하는 과정을 개밥먹기라고 하는데 빅테크 혹은 큰 회사들은 이걸 잘 안함... 직원들도 해야하는지 잘 모르고 임원들도 별 생각이 없는 경우가 많음 메타도 거의 안한듯 2. VR은 근데 성공하긴했는데요 ... 양지보단 음지에서 잘되더라고요 (먼산) 자세히 적기 좀 그렇긴한데 하여간 제가 볼땐 여러모로 메타 혹은 주크버그가 생각이 없었던것 같음 이게 어디에 잘 쓰일수 있을까 이런것들 ㅎㅎ

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dec_alpha @decalpha.bsky.social@bsky.brid.gy
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Shared by Horologram

VR하고 메타버스가 성공 못 할거라는건 아주 간단하게 알 수 있었는데 페이스 북이 그렇게 VR이 중요하다라고 하면서 정작 자신들 사옥을 매각하고 VR솔루션을 사용해서 비대면으로 사업을 운영하는지 보면 되는거였고 전혀 그런 기미가 없었으니깐. 본인들이 안 쓰는데 무슨 메타야 싶던.. 애초에 오큘러스 리프트와 VR의 부흥을 말하는 분들과 엄청나게 싸워왔는데...VR을 꼭 해야만 하는 그런 킬러 프로그램이 없었다. 결국 VR게임도 VR컨텐츠도 불편함을 감수하고서라도 해야할 그런게 아직도 없는데... 왜 그렇게 다 난리를 쳐왔는지..

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chaotic enby @quarknova@wikis.world
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Shared by David Guillot

My request for comment just closed, finally banning content in articles! "The use of LLMs to generate or rewrite article content is prohibited"

Kudos to all who participated in writing the guideline (especially Kowal2701) and the whole WikiProject AI Cleanup team, this was very much a group effort!

en.wikipedia.org/wiki/Wikipedi

Wikipedia:Writing articles with large language models/RfC - Wikipedia

en.wikipedia.org

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