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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もちもちずきん🍆 @Yohei_Zuho@mstdn.y-zu.org
Public

:ota: オープンソースカンファレンス東京に出展します！！ :fediverse:

明日明後日（2月27日、28日）に駒澤大学で開催されるオープンソースカンファレンス東京2026Spring に「分散型SNSユーザー有志」としてブース出展します！！

主な配布物
・ :blobcat: ステッカー（防水・再剥離）
・ :ota: ステッカー（大・防水）
・ :ota: スーパーキーシール（小）
・ :fediverse: ステッカー（防水）
・ :fedilug: ステッカー（防水）
・チラシなど

当日はSNSに関するパネルアンケートや の実物展示・印刷もする予定です！
皆さんのご来場お待ちしてます！！
詳細 : event.ospn.jp/osc2026-spring/

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Hacker News 100 @hn100@social.lansky.name
Public

Dissecting the CPU-memory relationship in garbage collection (OpenJDK 26)

Link: norlinder.nu/posts/GC-Cost-CPU
Discussion: news.ycombinator.com/item?id=4

OpenJDK 26 introduces new telemetry to quantify the CPU-memory trade-off in garbage collection.

Dissecting the CPU-Memory Relationship in Garbage Collection

Every time you configure a Java application’s heap size, you are essentially making a trade-off: spending more on infrastructure to improve performance metrics such as throughput or latency. Historically, this trade-off was visible when an undersized heap triggered long pauses, signaling a need for more resources. With modern collectors, however, pause duration and computational effort have become decoupled. This creates an operational blind spot: dashboards may show excellent response times, while the collector silently consumes excess compute capacity to compensate for a constrained heap. To address this, it is essential to look beyond GC pauses and examine overall efficiency using new tools. This article, therefore, analyzes why we need additional metrics for infrastructure efficiency and introduces the new Java API for GC CPU in OpenJDK 26, which empowers engineers and researchers to quantify the collector’s CPU overhead and make informed memory-CPU trade-off decisions.

norlinder.nu · Jonas Norlinder

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✧✦Catherine✦✧ @whitequark@treehouse.systems
Public

i checked up on OsmAnd and apparently they're doing some pretty advanced stuff for offline route calculation now! beyond A* osmand.net/blog/fast-routing/

OsmAnd's Faster Offline Navigation | OsmAnd

Offline navigation is a lifeline for travelers, adventurers, and everyday commuters. We demand speed, accuracy, and the flexibility to tailor routes to our specific needs. For years, OsmAnd has championed powerful, feature-rich offline maps that fit in your pocket. But as maps grew more detailed and user demands for complex routing increased, our trusty A algorithm, despite its flexibility, started hitting a performance wall. How could we deliver a 100x speed boost without bloating map sizes or sacrificing the deep customization our users love?

osmand.net

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ぐすくま@わかりみ @guskma@abyss.fun
Public

なかなかカオスな職場でごわすなぁ

＞Xユーザーのやねうらおさん: 「Zoomに古いPCだからと音声のみで参加してた支店、男性3人の誰が喋ってるのかわからない。 社長が「必ず自分の名前を言ってから喋るように」と何度も言ったのに全く守られないので社長がブチ切れて、「お前は語尾に、ござるをつけろ。お前はナリ、お前はにゃんだ！」と言って地獄の時間が始まった。😇」 / X
x.com/yaneuraoh/status/2026976

x.com · X (formerly Twitter)

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La Griffe @la_voix@mastodon.social
Public
Shared by Eve La Fée

: les coupes rases

Grâce à une analyse satellite, l’asso de défense des forêts Canopée, a répertorié toutes les en hexagonale et en de mi-2018 à mi-2024. En moyenne, sur les 6 années étudiées, 61 000 hectares de ont subi ce traitement radical chaque année. canopee.ong/publications/obser Les en haut du podium reporterre.net/Coupes-rases-la

La colère d’habitants face à des déracinés reporterre.net/En-entendant-la

coupes rasesDes chênes de plus de 200 ans déracinés dans le Cher.
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Matt Massicotte @mattiem@mastodon.social
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It’s a pretty esoteric thing, but I had to call it out because it’s so nice to see small things get fixed. The mysterious JamieQ saves the day yet again.

github.com/swiftlang/swift/iss

Description Hmm, shouldn't this be allowed? It is a result! test.swift:7:21: error: 'sending' may only be used on parameters and results 5 | } 6 | 7 | func makeThing() -> sending some MyProtocol { ...

Cannot using `sending` with `some` return value · Issue #74846 · swiftlang/swift

Description Hmm, shouldn't this be allowed? It is a result! test.swift:7:21: error: 'sending' may only be used on parameters and results 5 | } 6 | 7 | func makeThing() -> sending some MyProtocol { ...

github.com · GitHub

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Hailey @hailey@hails.org
Public

drove from my place in melbourne to my friends' place in sydney with no gmaps no gps, just handwritten pre-planned directions for the arrival into sydney. All went to plan, on time and no wrong turns! Feeling pretty proud of that

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Mat @okwithmydecay@en.osm.town
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I see that Mastodon got a mention on The Guardian's guide to leaving big tech: "German-developed Mastodon, whose feeds boast considerably less hate, misinformation, bot-generated content and AI slop" theguardian.com/technology/202

Leave big tech behind! How to replace Amazon, Google, X, Meta, Apple – and more

A handful of companies monopolise the web, with unprecedented access to our data. But there are many more ethical – and often distinctively European – alternatives

www.theguardian.com · the Guardian

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Alvin Ashcraft 🐿️ @alvinashcraft@hachyderm.io
Public

XAML[dot]io v0.6: Share Running .NET Code with a Link

blog.xaml.io/post/xaml-io-v0-6/

XAML.io v0.6: Share Running .NET Code With a Link

New version 0.6 of the free browser-based .NET IDE adds NuGet package support and code sharing via URL. Share a link to a running C# project and anyone can view, run, edit, and fork it instantly.

xaml_io_blog.github.io · XAML.io Blog

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Alvin Ashcraft 🐿️ @alvinashcraft@hachyderm.io
Public

How to fully customize Windows Terminal with Oh My Posh (themes, fonts, icons, & more) | with Kayla Cinnamon

youtube.com/watch?v=VFnr0lwwGuQ

How to fully customize Windows Terminal with Oh My Posh (themes, fonts, icons, & more)

In this video, I walk through an in-depth tutorial of how to customize Windows Terminal using Oh My Posh, custom background images, Terminal-Icons, and more....

www.youtube.com · YouTube

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