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Open Source @Github

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Vectorized and performance-portable Quicksort

https://opensource.googleblog.com/2022/06/Vectorized%20and%20performance%20portable%20Quicksort.html
114•mococa•1h ago•17 comments

Training a 4B model to produce 81% faster query plans than Postgres

https://rohanbansal.com/qorl
46•polyphilz•1h ago•5 comments

Small programming tricks

https://will-keleher.com/posts/small-programming-tricks-matter/
219•signa11•3h ago•121 comments

Accurate Models of AMD Matrix Cores

https://arxiv.org/abs/2609.14845
17•matt_d•53m ago•0 comments

Dream-RSI: Recursive Self-Improvement through Evolving Worlds

https://arxiv.org/abs/2609.14858
140•bananaflag•6h ago•44 comments

Fed hikes rates as inflation worries push up bond yields

https://www.reuters.com/live/live-fed-rate-hike-expected-inflation-worries-push-up-bond-yields-20...
59•wslh•54m ago•12 comments

Mistral X Mozilla: Private, Multilingual AI Browsing

https://mistral.ai/news/mistral-x-mozilla/
458•vertigoruntime•11h ago•164 comments

Tell the speakers that you liked their talks

https://ohhelloana.blog/tell-the-speakers/
202•whisper2020•1d ago•52 comments

Show HN: An e-ink frame that hears birds and draws them as 1800s illustrations

https://github.com/arnegiacomo/fugleramme
1949•arnemunthekaas•1d ago•230 comments

ER visits for gambling disorders doubled after expanded online gambling market

https://temertymedicine.utoronto.ca/news/emergency-room-visits-gambling-disorders-nearly-doubled-...
101•geox•2h ago•76 comments

Learning Programming in an Age of LLMs

https://blog.ploeh.dk/2026/09/16/on-learning-programming-in-an-age-of-llms/
203•moneroloop2018•10h ago•149 comments

How big are factorials?

https://eli.thegreenplace.net/2026/how-big-are-factorials/
61•ibobev•1d ago•23 comments

The Siberian Ice Maiden and the Scythian World

https://patrickwyman.substack.com/p/the-siberian-ice-maiden-and-the-scythian
21•NaOH•1d ago•0 comments

Claude Cowork and chat are now one Claude

https://claude.com/blog/cowork-is-now-claude
138•vertigoruntime•3h ago•163 comments

The DeepMind Institute

https://institute.deepmind.com/
73•vertigoruntime•5h ago•23 comments

A coffee shop owner used AI to make a menu poster. Then came the angry DMs

https://www.businessinsider.com/coffee-shop-owner-ai-menu-backlash-2026-9
20•TMWNN•50m ago•9 comments

Hackers Got Inside a Flock Camera

https://www.wired.com/story/hackers-flock-camera-data-shows-how-system-works/
367•driverdan•6h ago•179 comments

The Google Play app review process now regularly takes longer than a week

https://gultsch.social/@daniel/117280438824908947
305•inputmice•8h ago•292 comments

How good are frontier models at physics?

https://arxiv.org/abs/2609.13009
12•qt31415926•30m ago•2 comments

GitHub is having trouble counting things

https://chuckgreenman.com/2026/09/16/counting-at-github
41•chuckgreenman•2h ago•29 comments

Can we stop with the uptime percentages?

https://blog.jim-nielsen.com/2026/stop-with-the-uptime-percentage/
105•surprisetalk•4h ago•82 comments

Kyber (YC W23) Is Hiring a Forward Deployed Engineer

https://www.ycombinator.com/companies/kyber/jobs/eturrAR-forward-deployed-engineer
1•asontha•7h ago

Show HN: How Stale Is Your AI? Release age and training cutoff for 20 models

https://stale.jock.pl/
57•joozio•6h ago•39 comments

Why a fast-growing German AI startup is moving its parent company from the US

https://www.euronews.com/business/2026/09/16/why-this-fast-growing-german-ai-start-up-is-moving-i...
19•jethronethro•1h ago•2 comments

Salesforce Global Outage

https://status.salesforce.com/products/all
246•mabil•9h ago•149 comments

This Code Is CRAP (2011)

https://testing.googleblog.com/2011/02/this-code-is-crap.html
67•luispa•3h ago•45 comments

Anatomy of a Texture

https://agentlien.github.io/texture/
42•Agentlien•5h ago•9 comments

Show HN: I made a flight simulator, except you're just a passenger

https://inflightsimulator.com
390•rkotcher•2d ago•197 comments

A warning about 'model welfare'

https://mustafa-suleyman.ai/a-warning-about-model-welfare
124•andsoitis•5h ago•297 comments

Scaling Golang CI by Replacing actions/setup-go

https://www.cloudx.ai/posts/setup-go
59•peterldowns•6h ago•16 comments
Open in hackernews

GitHub is having trouble counting things

https://chuckgreenman.com/2026/09/16/counting-at-github
41•chuckgreenman•2h ago

Comments

hanspagel•53m ago
I think they struggle with two things

1) counting

stateoff•49m ago
"Since we forced our engineers to agentic workflows our efficiency doubled. Just look at the numbers!"
eugenekay•48m ago
2) cache validation

3) off-by-one errors

Gander5739•36m ago
There are solutions: https://xkcd.com/3062/
lbanchio•24m ago
4) naming things
kibwen•23m ago
According to the documentation there are four things:

4) naming things

5) keeping the documentation up-to-date

mickael-kerjean•43m ago
This got to be the extinguish phase from the EEE Microsoft playbook. Prior acquisition, Github was very liked and very focus, then Microsoft happened in their embrace phase, telling us EEE was something of the past. While trying to show good faith they extended the platform and this is now the very last phase
chuckgreenman•39m ago
Maybe, but does Team Foundation Server even exist anymore? What is the MS branded service that degrading GitHub is supposed to drive people to?
isolay•18m ago
Copilot, of course. Helpfully, every Microslop product is named Copilot Something now. Take your pick.
herpdyderp•38m ago
I don't believe this is true of the past, but it'd be quite the twist if the extinguish phase was really just pure incompetence this whole time. It certainly seems that way right now with GitHub.
yodon•31m ago
>EEE

My god what an ancient trope.

Presumably you realize most current Microsoft employees were not even alive when the EEE memo was written.

Must we also talk about some decision Henry Ford made in 1906 every time the automaker is mentioned, or something the Gauls did in 200 BC every time England is mentioned?

pessimizer•
apocalyptic0n3•38m ago
Calling this "severe" feels overblown. It's a UI mismatch likely caused by using multiple caches that are out of sync. I feel like every engineer on this site has encountered this exact bug at one point or another. It's an easy one to run into, especially in bigger orgs.
layer8•33m ago
The second screenshot with “1 3 Next” seems pretty hard to justify.

Taking care that such incongruent representations can’t happen even in the face of inconsistent backend caches is part of proper UI state management.

thibaut_barrere•33m ago
Yes but in the case of GH, it also happens in cases where the data is old: not just a temporary drift.
cedws•31m ago
There's tonnes of UI bugs. A more severe one I've experienced is that my approved PRs have been shown as still waiting on review, leading some of them to be delayed by weeks.
esafak•24m ago
I'm partial to the one where the workflow completes but the its summary on the PR does not get updated, so it appears to be running.

How many companies engender taste in bugs, eh??

datadrivenangel•29m ago
Dirty reads is a classic symptom of scaling poorly. Eventually consistent database writes are fine, but it's a bad look if a user takes an action and then doesn't see the results of their action.
wren6991•9m ago
Similar to how every description of relaxed consistency for CPUs starts out by pointing out your own reads always observe your own writes in program order, as if to say, "don't worry, we're not insane."
huurtehoog•23m ago
The fact that there's so much indirection between what happens in the registers and memory in the machine, the underlying reality being modeled by software, and the information displayed semantically to the users, is a travesty.

Software could be so much simpler and more reliable. There's so much bloat that is necessary to solve problems created by bloat. I hope we find our way out of this mess sooner rather than later. I'd hate for entire generations to suffer the current state of software whereas the theoretical understanding necessary to make things better was produced very early in the history of programmable computers.

zX41ZdbW•19m ago
Some of the oldest PRs could no longer be found.

For example, when I decided to continue my eight-year-old PR https://github.com/ClickHouse/ClickHouse/pull/104948, I couldn't see it - neither in search nor while navigating through pages.

Direct links still work.

whalesalad•19m ago
rails + russian doll style caching + large engineering team + azure as a platform = recipe for this exact problem.
booi•18m ago
Press "Next"
nubinetwork•17m ago
My phone consistently says that I have one more update than they'll actually let me download... what that one phantom app is, I'll never know...
1718627440•11m ago
CIA Information Services.
Rooster61•16m ago
> Really curious as to what’s going on over there, if you’ve got any insight let me know!

Microsoft. That's the answer. Microsoft is happening over there.

mococa•13m ago
AI will solve this
disko•9m ago
I have got an insight alright. Microsoft took it over.
21m ago
You don't want to talk about it because either 1) you don't know it, or 2) you were downplaying it at the time, too.

The only time we talk about Henry Ford, unless it's about his anti-Semitism, is about decisions he made in 1906. If we go by your arbitrary standard, why would we talk about Henry Ford at all when we could talk about this year's Tesla model?

> See also Netscape v2.0 and 3.0, which were badass browsers back in 1996, but are similarly irrelevant today.

Why are you talking about Netscape? What does that have to do with anything happening right now?

yodon•9m ago
>You don't want to talk about it because either 1) [wildly incorrect assertion] or 2) [equally incorrect assertion that reaches the level of a personal insult].

Not worthy of a response