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.

한겨레 @hanibsky.bsky.social@bsky.brid.gy
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부동산 정책에 있어 기준이 되는 ‘국평’이 그래도 수도권에 방 3개짜리 아파트를 구매할 수 있는 이들의 문제이듯, 코스피 5000도 실은 종잣돈이나 주식 투자를 할 수 있을 만한 충분한 소득을 지닌 이들의 문제입니다. 그런데 정치에서도 언론에서도 이런 사실을 지적하는 목소리가 점점 사라지고 있습니다. ✴️ 로그인하고 읽는 [이상한 나라의 경기도민]

아파트 공화국의 경기도민과 84㎡ 바깥의 삶

아파트 공화국의 경기도민과 84㎡ 바깥의 삶

“정말이지, 아파트 공화국답네.” 얼마 전 휴가로 외국에 다녀오는 길에 비행기에서 중얼거렸습니다. 인천국제공항을 통해 귀국하는 제게 ‘집에 거의 왔다’는 신호는 창밖으로 보이는 끝없는 아파트 행렬입니다. 다른 나라에선 찾아보기 어려운 이 아파트 숲은 수도권에 가까워질수

www.hani.co.kr · 한겨레

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Nina Kalinina @nina_kali_nina@tech.lgbt
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Oh, Persona (used by Discord and OpenAI to verify age) has watch lists and shares data with fed governments, it seems. I haven't finished reading yet: vmfunc.re/blog/persona/

the watchers: how openai, the US government, and persona built an identity surveillance machine that files reports on you to the feds

53MB of source code leaked from a government endpoint. 269 verification checks. biometric face databases. SAR filings to FinCEN. and the same company that verifies your ChatGPT account.

vmfunc.re · vmfunc.re

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🫧 socialcoding.. @smallcircles@social.coop
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@deadsuperheroSean Tilley

It does not need to be that way. I am quite happy after all (after being initially frustrated) by how has disrupted things, and opened the eyes of devs in the ecosystem that we must act or lose out (stay niche, which may be fine too) to the Atmoshpere and how it enables devs to focus on service and product delivery instead of low-level wire plumbing and continuous breakages.

ATProto also shows the way that we can now follow on the to catch up again: cocreate a similar robust basis for people to build on. had the advantage of a greenfield start and dedicated team unburdened by past decisions. And they build this whole Lexicon system and ways to introspect functionality.

We can do that too, solve the conundrum, and create an extensibility mechanism that allows devs to focus on service modeling. The more introspection this mechanism allows for, the less design-by-consensus is required, easing expansion to new domains.

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Python Software Foundation @ThePSF@fosstodon.org
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The 2026 Python Developers Survey is translated into Chinese, French, German, Korean, Japanese, Portuguese, Russian, and Spanish. We hope this encourages our regional communities to participate- take the survey and share with your local Pythonistas!
surveys.jetbrains.com/s3/pytho

Python Developers Survey 2026

The official Python Developers Survey 2026. Join and contribute to the community knowledge!

surveys.jetbrains.com

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Crafterior🥃 @crafterior@misskey.io
Public
Shared by 雨宮凪沙/nagiko

🐈🐾跳び猫のシャボングラス｜Melt🐾🐈

もうすぐ猫の日ということで、”跳び猫”シリーズの新色ができました🎉🎉🎉

元気に飛び跳ねる色とりどりの猫たちをご覧くだい。なんで飛び跳ねてるかは謎です❔️

明日2/20(金)の18時に公開します(ΦωΦ)

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Honič Péra 24 hodin @honicpera@snac.lab8.cz
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Hromadné vraždění etnických skupin súdánského Fáširu nese znaky genocidy. V nové zprávě to uvedla nezávislá vyšetřovací komise OSN. Město rok a půl obléhaly polovojenské Jednotky rychlé podpory (RSF). Po jeho dobytí svědci hovořili o masakrech civilistů včetně dětí.
🔗 Více v článku: https://czch.tv/F8fFNC

Vraždění ve Fáširu jeví známky genocidy, míní OSN

Hromadné vraždění etnických skupin súdánského Fáširu nese znaky genocidy. V nové zprávě to uvedla nezávislá vyšetřovací komise OSN. Město rok a půl obléhaly polovojenské Jednotky rychlé podpory (RSF). Po jeho dobytí svědci hovořili o masakrech civilistů včetně dětí.

ct24.ceskatelevize.cz

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Crafterior🥃 @crafterior@misskey.io
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🐈🐾跳び猫のシャボングラス｜Melt🐾🐈

もうすぐ猫の日ということで、”跳び猫”シリーズの新色ができました🎉🎉🎉

元気に飛び跳ねる色とりどりの猫たちをご覧くだい。なんで飛び跳ねてるかは謎です❔️

明日2/20(金)の18時に公開します(ΦωΦ)

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geeknews_bot @geeknews_bot@sns.lemondouble.com
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Claude Code의 OAuth 토큰, 외부 서비스·Agent SDK에서 사용하면 약관 위반
------------------------------
Anthropic이 법적 효력에 대한 문서를 업데이트했다고 하여 공유합니다.

Anthropic이 Claude Code 공식 문서에서 OAuth 인증 토큰의 사용 범위를 명확히 제한했습니다.
Free, Pro, Max 플랜에서 사용하는 OAuth 인증은 Claude Code와 Claude.ai 전용입니다. 해당 계정으로 발급된 OAuth 토큰을 다른 제품, 툴, 서…
------------------------------
https://news.hada.io/topic?id=26811&utm_source=googlechat&utm_medium=bot&utm_campaign=1834

Claude Code의 OAuth 토큰, 외부 서비스·Agent SDK에서 사용하면 약관 | GeekNews

Anthropic이 법적 효력에 대한 문서를 업데이트했다고 하여 공유합니다.Anthropic이 Claude Code 공식 문서에서 OAuth 인증 토큰의 사용 범위를 명확히 제한했습니다.Free, Pro, Max 플랜에서 사용하는 OAuth 인증은 Claude Code와 Claude.ai 전용입니다. 해당 계정으로 발급된 OAuth 토큰을 다른 제품, 툴,

news.hada.io · GeekNews

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Andre Meister @andre_meister@chaos.social
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Digitale Identität und ID-App sind freiwillig. Das wurde immer wieder versprochen. Das steht sogar im EU-Gesetz. Die App ist noch nicht mal fertig. Die Bundesregierung sagt trotzdem schon: App und ID-Zwang werden Pflicht für soziale Medien.

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🫧 socialcoding.. @smallcircles@social.coop
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@deadsuperheroSean Tilley

Right now extensibility of shapes up as custom app-by-app app-centric development where individual devs just pragmatically throw new stuff on the wire, and when their app gains any popularity or other apps to integrate in a similarish application, things are bolted onto that in random ways. That whole story really constitutes a Big Ball of Mud anti-pattern that only introduces protocol decay, tech debt, and whack-a-mole programming, that is very hard to get rid of once there exists an installed base.

The reason that we do things that way is very understandable. It works in a grassroots environment where indivualist devs find it very hard and not valuable to collaborate at scale in what amounts to a kind of design-by-consensus process. But it comes at a high cost, where interoperability is basically out the door and any app has to be shaped as a pretzel and adopt all the quirks introduced by predecessors in a particular app domain to fit itself on the wire.

🫧 socialcoding.. @smallcircles@social.coop
Public
Shared by Emelia 👸🏻

@deadsuperheroSean Tilley

It does not need to be that way. I am quite happy after all (after being initially frustrated) by how has disrupted things, and opened the eyes of devs in the ecosystem that we must act or lose out (stay niche, which may be fine too) to the Atmoshpere and how it enables devs to focus on service and product delivery instead of low-level wire plumbing and continuous breakages.

ATProto also shows the way that we can now follow on the to catch up again: cocreate a similar robust basis for people to build on. had the advantage of a greenfield start and dedicated team unburdened by past decisions. And they build this whole Lexicon system and ways to introspect functionality.

We can do that too, solve the conundrum, and create an extensibility mechanism that allows devs to focus on service modeling. The more introspection this mechanism allows for, the less design-by-consensus is required, easing expansion to new domains.

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Woojin Kim @me@hollo.woojinkim.org
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전체 국민????? 전체요??!?!

https://youtu.be/526MNVHo73s

[오늘 이 뉴스] 계엄막은 시민 '노벨상 후보' "대한민국은.." 감동한 李 (2026.02.19/MBC뉴스)

#비상계엄 #시민 #노벨평화상 #후보 #응원봉#MBC #뉴스 #뉴스데스크 #MBC뉴스 #뉴스투데이 #뉴스ZIP #뉴스꾹 #오늘이뉴스 #자막뉴스ㅤⓒ MBC & iMBC 무단 전재, 재배포 및 이용(AI학습 포함)금지

www.youtube.com · YouTube

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didleth 🇵🇱 🌈 🇺🇦 🇪🇺 ⚡ @didleth@mastodon.social
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Shared by nicole mikołajczyk

Zdjęciami dzieci w sieci dzieli się ok. 40% polskich rodziców i ok. 75% szkół i przedszkoli.

Dlaczego placówki domagają się, by rodzice wyrazili zgodę na sharenting i dlaczego rodzice tę zgodę podpisują? Czy zamiast wprowadzać zakaz socialmediów dla dzieci nie powinno się go wprowadzić dla szkół?

Zapraszam na drugą część cyklu o sharentingu:

didleth.pl/kto-odpowiada-za-dz

Kto odpowiada za dzieci na szkolnym Facebooku? – didleth.pl

didleth.pl

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José A. Alonso @Jose_A_Alonso@mathstodon.xyz
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Mathematics and machine creativity: A Survey on bridging mathematics with AI. ~ Shizhe Liang, Wei Zhang, Tianyang Zhong. arxiv.org/abs/2412.16543v1

arXiv logo

Mathematics and Machine Creativity: A Survey on Bridging Mathematics with AI

This paper presents a comprehensive survey on the applications of artificial intelligence (AI) in mathematical research, highlighting the transformative role AI has begun to play in this domain. Traditionally, AI advancements have heavily relied on theoretical foundations from fields like mathematics and statistics. However, recent developments in AI, particularly in reinforcement learning (RL) and large language models (LLMs), have demonstrated the potential for AI to contribute back to mathematics, offering flexible algorithmic frameworks and powerful inductive reasoning capabilities that support various aspects of mathematical research. This survey aims to establish a bridge between AI and mathematics, providing insights into the mutual benefits and fostering deeper interdisciplinary understanding. In particular, we argue that while current AI and LLMs may struggle with complex deductive reasoning, their inherent creativity holds significant potential to support and inspire mathematical research. This creative capability, often overlooked, could be the key to unlocking new perspectives and methodologies in mathematics. Furthermore, we address the lack of cross-disciplinary communication: mathematicians may not fully comprehend the latest advances in AI, while AI researchers frequently prioritize benchmarks and standardized testing over AI's applications in frontier mathematical research. This paper seeks to close that gap, offering a detailed exploration of AI's basic knowledge, its strengths, and its emerging applications in the mathematical sciences.

arxiv.org · arXiv.org

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José A. Alonso @Jose_A_Alonso@mathstodon.xyz
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Case study: Saturations as explicit models in equational theories. ~ Mikoláš Janota, Michael Rawson, Stephan Schulz. arxiv.org/abs/2602.16324v1

arXiv logo

Case Study: Saturations as Explicit Models in Equational Theories

Automated theorem provers (ATPs) can disprove conjectures by saturating a set of clauses, but the resulting saturated sets are opaque certificates. In the unit equational fragment, a saturated set can in fact be read as a convergent rewrite system defining an explicit, possibly infinite, model -- but this is not widely known, even amongst frequent users of ATPs. Moreover, ATPs do not emit these explicit certificates for infinite (counter-)models. We present such a certificate construction in full, implement it in Vampire and E, and apply it to the recent Equational Theories Project, where hundreds of implications do not admit finite countermodels. The resulting rewrite systems can be checked for confluence and termination by existing certified tools, yielding trustworthy countermodels.

arxiv.org · arXiv.org

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José A. Alonso @Jose_A_Alonso@mathstodon.xyz
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Pursuit of truth and beauty in Lean 4: Formally verified theory of grammars, optimization, matroids. ~ Martin Dvorak. arxiv.org/abs/2602.12891

arXiv logo

Pursuit of Truth and Beauty in Lean 4: Formally Verified Theory of Grammars, Optimization, Matroids

This thesis documents a voyage towards truth and beauty via formal verification of theorems. To this end, we develop libraries in Lean 4 that present definitions and results from diverse areas of MathematiCS (i.e., Mathematics and Computer Science). The aim is to create code that is understandable, believable, useful, and elegant. The code should stand for itself as much as possible without a need for documentation; however, this text redundantly documents our code artifacts and provides additional context that isn't present in the code. This thesis is written for readers who know Lean 4 but are not familiar with any of the topics presented. We manifest truth and beauty in three formalized areas of MathematiCS (optimization theory, matroid theory, and the theory of grammars). In the pursuit of truth, we focus on identifying the trusted code in each project and presenting it faithfully. We emphasize the readability and believability of definitions rather than choosing definitions that are easier to work with. In search for beauty, we focus on the philosophical framework of Roger Scruton, who emphasizes that beauty is not a mere decoration but, most importantly, beauty is the means for shaping our place in the world and a source of redemption, where it can be viewed as a substitute for religion.

arxiv.org · arXiv.org

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가람 @garam@cafe.otter.homes
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Tâi-gí gān-bûn sī Bân-lâm-gú ê chi̍t-thò bûn-jī hē-thóng.
臺語諺文是臺語的一套文字系統。
⁻대⁺끼〯⁺깐〮⁻뿐 ⁻시〮 ⁻빤⁻람⁺꾸〯 ⁻어 ⁻짇⁺토〮 ⁻뿐⁻찌〮 ⁻허〮⁺통〯.

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joël @jollysea@chaos.social
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Mit wem würdert ihr denn reden, wenn ihr was über Altersnachweise im Internet/die damit verknüpften digitaler-Ausweis-Pläne machen wollen würdet? Fokus wird Luxemburg sein, EU-Perspektive ist natürlich auch super.

Ihr dürft euch gerne auch selbst nominieren. Nur dann müsst ihr auch mit mir reden :)

:BoostOK:

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José A. Alonso @Jose_A_Alonso@mathstodon.xyz
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Computer science as infrastructure: the spine of the Lean computer science library (CSLib). ~ Christopher Henson, Fabrizio Montesi. arxiv.org/abs/2602.15078v1

arXiv logo

Computer Science as Infrastructure: the Spine of the Lean Computer Science Library (CSLib)

Following in the footsteps of the success of Mathlib - the centralised library of formalised mathematics in Lean - CSLib is a rapidly-growing centralised library of formalised computer science and software. In this paper, we present its founding technical principles, operation, abstractions, and semantic framework. We contribute reusable semantic interfaces (reduction and labelled transition systems), proof automation, CI/testing support for maintaining automation and compatibility with Mathlib, and the first substantial developments of languages and models.

arxiv.org · arXiv.org

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José A. Alonso @Jose_A_Alonso@mathstodon.xyz
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Hennessy-Milner logic in CSLib, the Lean computer science library. ~ Fabrizio Montesi, Marco Peressotti, Alexandre Rademaker. arxiv.org/abs/2602.15409v1

arXiv logo

Hennessy-Milner Logic in CSLib, the Lean Computer Science Library

We present a library-level formalisation of Hennessy-Milner Logic (HML) - a foundational logic for labelled transition systems (LTSs) - for the Lean Computer Science Library (CSLib). Our development includes the syntax, satisfaction relation, and denotational semantics of HML, as well as a complete metatheory including the Hennessy-Milner theorem - bisimilarity coincides with theory equivalence for image-finite LTSs. Our development emphasises generality and reusability: it is parametric over arbitrary LTSs, definitions integrate with CSLib's infrastructure (such as the formalisation of bisimilarity), and proofs leverage Lean's automation (notably the grind tactic). All code is publicly available in CSLib and can be readily applied to systems that use its LTS API.

arxiv.org · arXiv.org

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