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.

Mariusz Felisiak @felixxm@fosstodon.org
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Shared by Paolo Melchiorre

This could be a game changer for anyone using model custom QuerySets and Managers 🎉 I've just implemented an 11 years old ticket 🧓 for initial filters on model QuerySets handled in such an elegant way 💎

objects = QuerySet.filter(active=True).as_manager()

github.com/django/django/pull/

Thanks Simon Charette for the implementation idea. ticket-23533

Fixed #23533 -- Allowed defining initial filters on QuerySet classes. by felixxm · Pull Request #20336 · django/django

Thanks Simon Charette for the implementation idea. ticket-23533

github.com · GitHub

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Hacker News 50 @hn50@social.lansky.name
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Finding Gene Cernan's Missing Moon Camera

Link: spacecamera.co/articles/2020/3
Discussion: news.ycombinator.com/item?id=4

Finding Gene Cernan's Missing Moon Camera — Space Camera Co.

It’s often repeated how most of the cameras that landed on the moon stayed on the moon. Gene Cernan had been telling the story of how he left his camera on the lunar rover for years, recounting the tale in interviews. Looking closer, however, you being to unravel a space-age mystery.

www.spacecamera.co · Space Camera Co.

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mcc @mcc@mastodon.social
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You *can* build a decentralized technical / internet system which is actually decentralized, of course. There are lots of examples of that too. But since that isn't the kind of system capitalism naturally builds, what you probably won't do is get *funding* to create that system. And that means *completing* your decentralized system is hard and gets harder the further past 1990 we get and the more you expect your decentralized system to do.

James Cat @zz_james@mastodon.social
Public
Shared by mcc

@mcc I thought this before, the internet's key resilient design principle is diametrically opposed to capitalism's requirement for control of resource(s) and cultivation of dependency - eg in capitalism you want to own the only bridge over the river.

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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️ @KrajciTom@universeodon.com
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Shared by Olivier Forget

Atmospheric refraction, due to the different temperature/altitude profile in the atmosphere at different times of day...makes distant mountains appear taller or shorter.

The attached photo is a comparison of what I shot yesterday afternoon and this morning. The camera was set up within inches of the same location for both shots, and those mountains are between 50 and 120 miles away...so I'm saying that any parallax effect from camera location is essentially zero.

I have annotated with arrows where it's easy to make a comparison of how the near and far ridge lines overlap differently in the two photos.

This is a follow up to:
universeodon.com/@KrajciTom/11

Imagine the care that was needed to conduct surveys before the GPS/GNSS era:
explorersweb.com/the-five-men-

"The Great Theodolite built by Troughton & Simms in London stood nearly 1.5m high, had a horizontal circle one meter in diameter, and could read angles to a single second of arc. Moving it required 30 porters and sometimes elephants."

"The reduction of Nicolson’s observations was a colossal task. Each ray from each station had to be corrected for instrumental error, for temperature and pressure, and for the curvature of the Earth. Above all, they needed to correct for atmospheric refraction, which at those distances could amount to six or seven minutes of arc and change from hour to hour."

A comparison of two photos of the same distant mountain ridges. Arrows show places where the ridgelines overlap in different ways in the two photos. The top photo is grayscale, the bottom one is color.The great theodolite. Photo: Survey of India Archives
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mcc @mcc@mastodon.social
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Capitalism is *all about*, at its core, building decentralized systems which on inspection turn out to be centrally controlled, or controlled via a "one dollar one vote" democracy of the five or six richest people in the system (in other words informal centralization, without the committee that makes the decisions having a name).

The decentralized internet systems that capitalism builds reflect this. There's lots of examples of it. Bitcoin, Ethereum, Bluesky.

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Kuropen @kuropen@mi.kuropen.org
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Blueskyの場合はドメインと権威DNSを持っていればID自体をそのドメインにできるので、なりすまし自体の防止という意味ではこちらの方が強力な印象はある。もっともサイバースクワッティングに対しては脆弱なので、重ねて今年4月に認証プログラムが導入されたけれども

A New Form of Verification on Bluesky - Bluesky

We’re introducing a new layer of verification — a user-friendly, easily recognizable badge. Additionally, independent organizations can verify accounts directly through our Trusted Verifiers feature.

bsky.social · Bluesky

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Matt Weagle @mweagle@hachyderm.io
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“But if you strip away the title, the salary, and the years of experience, there’s one core skill that separates senior+ engineers from everyone else: reducing ambiguity. Everything else flows from that.”
terriblesoftware.org/2025/11/2

What Actually Makes You Senior

The one skill that separates senior engineers from everyone else isn’t technical. It’s the ability to take ambiguous problems and make them concrete.Retry

terriblesoftware.org · Terrible Software

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雨雲（あまぐも） @nemu11@toot.blue
Quiet public
Shared by SparklingOutlaw🍉

パートの面接で（こちらから質問しない限り）教えてもらえないのが、ロッカー・共用部の掃除の有無。当番制のやつ。
入社したら仕事並みに強制的にやらなきゃいけないのに、面接では説明がないのどうかと思う。
言うまでもないこととでも考えてるのかね、会社は。入ってからやれって言われても、私は「そんな話は聞いてない」って強く思う。

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kmiura @kmiura@toot.blue
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Shared by SparklingOutlaw🍉

子が使っている古いパソコンのWindowsを11にアップグレードしてから、もたつきが著しいのみならず、管理画面にたどり着けない、ハッキングでもされたかのような異常な挙動をする、など、なにかと使いものにならなくなったので、Windowsを捨ててLubuntuを入れた。

新しいパソコンになったようにバリバリ動く。テスト一環で眺めるYoutubeの動画もサクサク動くのでよいのであるが、履歴のない状態で並ぶ動画は高市マンセー動画、野党涙、習近平悲鳴などの動画がいくつもあって、ちと驚いた。ここまでプロパガンダが浸潤しているのであるな。普段は履歴があるので私は目にしないような惨状である。こりゃ洗脳されるわ。

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田淵 @kitsunekirin@vivaldi.net
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Shared by SparklingOutlaw🍉

マジの話、GO TO は集計した紙の券を期日までに送らないと本当に店側が全部負担することになるって感じだったんだけど、月末とか普段の月末処理でいっぱいいっぱいって個人商店ではGO TO での売上を泣く泣く捨ててたとこありました。「GO TOは来ないでくれ」ってお店、いっぱいあったと思う。観光地はそうじゃなかったのかもだけど。
終盤もズルズル期限が伸びていって、そしたら券に書いてある使用期限がまったく信用出来なくなるという事態になり、よくわからないままフェードアウトしたって感じでした。

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Sobtanian @Sobtanian@mstdn.games
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scarf update:

Today I finished the side profile view of the Deep Space Nine station!

There’s only 62 rows left, and they’ll make up the top view of the same station.

I do like how, by pure chance, the station sits within the complete spectrum of colour :)

This should hopefully all be done in the next few days, I’ve decided to add a fringe to it also, so the next update will be when it’s finished, washed, dried, and ready to be sent to my friend for Christmas.

On the left: black station against rainbow sky. On the right: vice versa
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Amber @puppygirlhornypost2@transfem.social
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feel like there's a bit of nuance lost when people argue about usability in Linux. Just because I know how to do something by editing a file in a very specific directory that changes between distros does not mean that I think it's good ui/ux. I can be frustrated with how something should be a simple GUI toggle vs rawdogging dconf. I can also still be smart; it does not make me dumb to want shortcuts.

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[랜선효도] 제주감귤🍊 @jejuorange.bsky.social@bsky.brid.gy
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Shared by KAGAMI🏳️‍🌈🏳️‍⚧️

AI-인간 상호 인지 붕괴론 지금 우리는 인간과 기계 간 상호 지능 저하의 첫 번째 사례를 목격하고 있다. x.com/atmostbeauti... AI 시스템을 훈련시키는 동일한 정보 생태계가 동시에 인간 인지도 재구성하고 있으며, 양자 모두 측정 가능한 복합적 방식으로 퇴화하고 있다. 텍사스 A&M대, 텍사스대 오스틴 캠퍼스, 퍼듀대 연구진은 바이럴 콘텐츠로 훈련된 AI 시스템이 추론 능력의 23.6%를 상실한다는 사실을 입증했다. substack.com/home/post/p-...

x.com/atmostbeautifu...

x.com · X (formerly Twitter)

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