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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As we consider ways to implement into our FOSS Community Calendar Ecosystem platform Koalagator, I've been looking over the differing specs for how to specify the event object schema.

Have any other folk wrestled with this?Asking before I get arms deep in this stuff.

For those playing at home...

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Schema.org - Event

Schema.org is a collaborative, community activity with a mission to create, maintain, and promote schemas for structured data on the Internet.

schema.org/Event

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W3C Activity Vocabulary - Event

This specification describes the Activity vocabulary. It is intended to be used in the context of the ActivityStreams 2.0 format and provides a foundational vocabulary for activity structures, and specific activity types.

w3.org/TR/activitystreams-voca

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Fediverse Enhancement Proposal
FEP-8a8e: A common approach to using the Event object type

ActivityStreams defines the Object Type Event. In real-world applications, the event object immediately showed the need for extension. Applications featuring Event objects have often chosen to add additional attributes and clarifications (i.e., interpretations) in order to implement their particular use case. This proposal clarifies and extends the ActivityPub standard to address the needs that have arisen in real-world implementations.

codeberg.org/linos/fep/src/bra

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[HTML] Microformats - h-event

People are using microformats to mark up profiles, posts, events and other data on their personal sites, enabling developers to build applications which use this data in useful and interesting ways.

microformats.org/wiki/h-event

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iCalendar Standard (RFC 5545)

iCalendar was first defined as a standard as RFC 2445 in 1998 by the Internet Engineering Task Force (IETF). Today, iCalendar is used to import and synchronize events on various platforms, including smart phones, computer and web applications.

icalendar.org/the-icalendar-st


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What we’ve launched today is the first step for how we’re going to evolve verification. The initial set of trusted verifiers includes news orgs who’ve agreed to take on the task of verification for their journalists. In the future, this set will expand, as well as how apps can choose to use them.

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On Bluesky, identity is now confirmed by two overlapping tools: • Domain names • Verification by one of the trusted verifiers Both techniques give a different kind of signal, with their own benefits, and I believe we can do more.

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In atproto – the open network we’re built on – anybody can publish verifications. In the Bluesky app, Bluesky chooses whose verifications to show. This means that other apps could choose a different set of trusted verifiers, or use a different model entirely.

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What we’ve launched today is the first step for how we’re going to evolve verification. The initial set of trusted verifiers includes news orgs who’ve agreed to take on the task of verification for their journalists. In the future, this set will expand, as well as how apps can choose to use them.

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가디언지 둘러보다 프란치스코 교황 기사가 눈에 띄어서 교황이 아프기 전엔 무슨 기사가 있었을지 둘러봤는데 작년만 해도 해리스의 임신중지 옹호가 트럼프만큼 위험하다고 했다거나 동성애 혐오표현 써서 나중에 사과했다거나 하는 게 계속 나오네...
theguardian.com/world/2024/sep
theguardian.com/world/article/

PinkNews의 프란치스코 교황 부고 기사. 물론 프란치스코는 이전 교황보다는 나은 발언들을 하기도 했었지만 동시에 여전히 시대에 뒤떨어진 차별발언을 여럿 했던 것도 함께 지적. thepinknews.com/2025/04/21/pop

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Microsoft한테 Fork 당하다
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-
Spegel 은 이미지 레지스트리 장애로 인한 Kubernetes 클러스터 확장 문제를 해결하기 위해 개발된 오픈소스 도구임
- Microsoft는 Spegel에 관심을 보이고 협력 의사를 밝혔지만, 이후 별다른 피드백 없이 유사한 프로젝트인
Peerd 를 독자적으로 공개함
- Peerd는 Spegel을 기반으로 만든 것으로 보이며, …
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https://news.hada.io/topic?id=20461&utm_source=googlechat&utm_medium=bot&utm_campaign=1834

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たまーに自分用debパッケージを作ってみたくなることもあるんだけどむかーしspecファイルを書いてたころの気軽さは得られずこれも加齢かねえ…金曜日まで待とうかな (それはカレー)

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랭체인으로 RAG 개발하기 : VectorRAG & GraphRAG - 현직 AI Specialist에게 배우는 RAG! 파이썬, 오픈AI, Neo4j로 실습하며 개념과 원리를 이해하고, 오픈AI와 딥시크 비교 분석까지! (서지영 (지은이) / 길벗 / 2025-04-25 / 29,000원) feed.kodingwarrior.dev/r/9pIEy

aladin.co.kr/shop/wproduct.asp

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咁大个仔 gem3 dai6 go3 zei2

——直译是“这么大的孩子”,实际是“长这么大了”的意思。如:噉嘅事我咁大个仔都未见过(这样的事我长这么大了都没有见过)| 你咁大个仔唔同你细佬呀,要听话至得呀(你这么大的孩子了,跟你弟弟不一样,要听话才行呀)。如果说的是女子,就要用“咁大个女”。

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미래의 기술은 'AI'가 아니라 '집중력'임
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- LLM은 반복 작업 자동화와 브레인스토밍 등에 유용하지만, *맹목적인 의존은 문제 해결 능력 저하를 초래할 수 있음*
- 특히 *새로운 문제에 대한 LLM의 신뢰도는 낮아* , 인간 엔지니어의 판단력이 중요함
- 구글 같은 검색엔진은 탐색과 활용의 균형을 제공하지만,
LLM은 즉시 ‘활용’(exploitation)만 유…
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https://news.hada.io/topic?id=20458&utm_source=googlechat&utm_medium=bot&utm_campaign=1834

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지금 서울은... (25.4.22 🕥10:30 기준) 기온🌡18.7˚C / 습도💧92% / 🌧️비(2.1mm) `、ヽ`、ヽ`、ヽ`、ヽ`、ヽ`、ヽ`、ヽ`、ヽ 🕚11시: 🌡18˚C 💧95% 🌧️비(6mm) 🕛12시: 🌡18˚C 💧95% 🌧️비(3mm) 🕐13시: 🌡18˚C 💧90% 🌧️비(2mm) 🕑14시: 🌡18˚C 💧90% 🌧️비(3mm) 🕒15시: 🌡18˚C 💧90% 🌧️비(1mm미만) 🕓16시: 🌡18˚C 💧90% 🌦️빗발(1mm미만)

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미래의 기술은 'AI'가 아니라 '집중력'임
------------------------------
- LLM은 반복 작업 자동화와 브레인스토밍 등에 유용하지만, *맹목적인 의존은 문제 해결 능력 저하를 초래할 수 있음*
- 특히 *새로운 문제에 대한 LLM의 신뢰도는 낮아* , 인간 엔지니어의 판단력이 중요함
- 구글 같은 검색엔진은 탐색과 활용의 균형을 제공하지만,
LLM은 즉시 ‘활용’(exploitation)만 유…
------------------------------
https://news.hada.io/topic?id=20458&utm_source=googlechat&utm_medium=bot&utm_campaign=1834

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※非公式訳です Blueskyの新しい形の認証レイヤーを紹介します — ユーザーフレンドリーで認識が用意な青チェックマークです。 ※訳注:この機能に関連する画面の日本語訳は機械翻訳によるもので不自然なところが多くなっています。翻訳の修正を提出したので、そのうち反映されると思います Blueskyにより発行されるアカウントの認証(verification)に加え、信頼された認証者(Trusted Verifier)を導入します。選ばれた独立の機関がアカウントを直接認証します。

RE: https://bsky.app/profile/did:plc:z72i7hdynmk6r22z27h6tvur/post/3lndjyecwcs2a

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IDEのシミュレーションがちょっと面白い。これはアメリカが本物の相互関税(相手国が徴収した関税分をアメリカでも徴収する)を行った2月時点の情報を元にしたシミュレーションなんだけど、全てのケースでアメリカのGDP減少が導かれている。

現実には北米貿易圏で25%超、ベース10パーセント課税というシミュレーションよりも大きな関税がかけられていて、中国に対しては経済制裁の一歩手前レベルの高関税が課されてしまった。
ボーイングなんかたった一社で200億ドルの損失を出してしまいそう。

輸入を減らして国内産業の育成をするのは大いに結構だけど、医療と教育でしょうよ。

ide.go.jp/Japanese/IDEsquare/E

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rbenvのおかげでUbuntu LTSでじゅうぶんしやわせ

$ ruby -e 'puts File.read("/etc/lsb-release"), RUBY_DESCRIPTION'
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=24.04
DISTRIB_CODENAME=noble
DISTRIB_DESCRIPTION="Ubuntu 24.04.2 LTS"
ruby 3.4.2 (2025-02-15 revision d2930f8e7a) +PRISM [x86_64-linux]

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This is an interesting simulation about mutual tariffs, which simulates whether the USA hikes tariffs based on the real tariffs imposed by opposing countries.
Unlike in this simulation, the U.S. has imposed tariffs of up to 125%, effectively curbing trade with China. Boeing faces the return of the 737 MAX, with estimated losses of $20 billion.
This loss by only one company represents approximately 0.07% of the U.S. GDP in 2024.
ide.go.jp/Japanese/IDEsquare/E

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終於聽到了,終於在實際工作裡聽到「いい感でして欲いい」(大意是「總之請做好」)這裡魔咒了!我以為就漫畫裡的黑心公司會出現,實際我這邊公司也會有嗎!

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不定期連載、Misskey & Webテクノロジー最前線の最新回は「CSS Variablesはここまで進化した」。執筆は @syuilo:petthex_javasparrow:しゅいろ:petthex_javasparrow: さんです。今回はMisskeyのテーマ機能で特に活用されている、CSS Variables(CSS変数)について解説しています。
gihyo.jp/article/2025/04/missk

そうそう、Misskeyの新しいバージョンでは、テーマ選択画面において、標準添付されている各テーマがグラフィカルに表示されるようになって、アクセントカラーなんかがぱっと見わかりやすくなっているそうです。

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Claude Code에 Ultrathink 를 사용하면 더 똑똑해짐
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- Anthropic은 Claude 기반 CLI 에이전트 도구인
Claude Code 의 고급 사용법을 문서로 공개함
- 특정 키워드("
think ", "ultrathink " 등)를 사용하면 Claude가 더 많은 *연산 자원(토큰)* 을 사용해 더 깊은 사고를 진행함
- "think" → 4,000 토큰, "megathink" → 10,000 토큰, "ultrathink" → 최대…
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https://news.hada.io/topic?id=20457&utm_source=googlechat&utm_medium=bot&utm_campaign=1834

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