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Open Source @Github

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Ask HN: Do you know of any company that went back to hand-written code?

27•antipurist•58m ago•14 comments

Asus Bike Booster

https://www.asus.com/accessories/bike-booster/asus-oxiis/oxiis-intelligent-bike-booster/
461•wiradikusuma•4d ago•297 comments

Patterns and problems in emerging multi-agent systems

https://www.anthropic.com/research/multiagent-systems
118•maxutility•9h ago•63 comments

Superconducting monolayer cuprate with a single CuO2 plane

https://www.nature.com/articles/s41586-026-10857-1
21•sbulaev•3d ago•6 comments

Asynchronous I/O in DuckDB: Work, Thread, Work

https://duckdb.org/2026/07/31/asynchronous-io
186•pdet•5d ago•21 comments

Gooseworks (YC W23) Is Hiring a Founding Builder / Engineer

https://www.ycombinator.com/companies/gooseworks/jobs/UJ4vH2F-founding-engineer
1•shivsak•3m ago

Software Engineering fundamentals matter more

https://rhonabwy.com/2026/08/15/software-engineering-fundamentals-matter-more-than-ever/
185•ingve•13h ago•112 comments

Chestnut – eGPU dock with open-source firmware

https://hwbusters.com/news/comma-ai-egpu-dock-runs-open-source-firmware-249-bare-799-with-an-rx-9...
31•txrx0000•2d ago•4 comments

Super El Niño Keeps Growing as New Forecasts Reach Record Territory Ahead Winter

https://www.severe-weather.eu/long-range-2/super-el-nino-growth-accelerating-to-record-strength-f...
276•dgellow•16h ago•171 comments

Semaglutide linked to lower predicted dementia risk

https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/dad2.70432
440•randycupertino•20h ago•319 comments

Cultivating a state of mind where new ideas are born (2023)

https://www.henrikkarlsson.xyz/p/good-ideas
189•felixbraun•15h ago•47 comments

What happens when an LLM never sees material beyond fifth grade?

https://littlelearner-ll.github.io/
149•porridgeraisin•4h ago•114 comments

Guiding Ships with Moire Patterns

https://tinkerings.org/2018/03/28/guiding-ships-with-moire-patterns/
67•Eridanus2•10h ago•19 comments

At-home test for infected ticks could improve Lyme Disease diagnosis

https://www.smithsonianmag.com/innovation/the-first-at-home-test-for-infected-ticks-could-improve...
264•gmays•21h ago•99 comments

Impulse Tracker

https://ovidem.com/impulsetracker/
31•vsvagr•4d ago•5 comments

AI in drug discovery – what it is, where we stand and the path forward

https://www.science.org/content/blog-post/so-how-ai-drug-discovery-doing-really
147•AnodicElegy•16h ago•81 comments

RISC-V: They Should Have Known Better

https://dmitry.gr/?r=06.%20Thoughts&proj=12.%20RV
328•dmitrygr•1d ago•378 comments

Show HN: Mic Drop, a real-time multiplayer karaoke game

https://www.micdrop.gg/
62•johnsillings•11h ago•28 comments

Falstad Math and Physics Simulations

https://www.falstad.com/mathphysics.html
25•pykello•7h ago•6 comments

Numba in the Browser: Unlocking a New Scientific Python Stack in JupyterLite

https://notebook.link/blog/numba-in-the-browser/
52•xalfotis•4d ago•9 comments

I built a browser-native SysEx librarian for 80s/90s synthesizers

https://bipluk.com/
25•halfradaition•3d ago•13 comments

A fortuitous decade as an indie software developer

https://lapcatsoftware.com/articles/2026/8/3.html
98•frizlab•5d ago•11 comments

A spectre is haunting Unicode

https://www.dampfkraft.com/ghost-characters.html
235•sensanaty•21h ago•91 comments

Tracking down a Zsh history data loss bug

https://michael.stapelberg.ch/posts/2026-08-09-zsh-history-truncation-bug/
84•ingve•14h ago•31 comments

Abdominal fat predicts heart disease risk better than BMI

https://www.acc.org/about-acc/press-releases/2026/08/11/14/59/abdominal-fat-predicts-heart-diseas...
273•theanonymousone•14h ago•217 comments

AI has access to a vastly larger working memory than the human brain

https://davidepiffer.com/p/ai-isnt-outthinking-mathematicians
516•rzk•17h ago•445 comments

Tea5767-Radio-Tuner

https://github.com/turtushig22-blip/tea5767-radio-tuner
45•turtushig22•12h ago•2 comments

AI-Assisted GPU Porting of a 250k Line Legacy Weather Simulation Code

https://arxiv.org/abs/2608.13122
39•Jimmc414•13h ago•4 comments

Show HN: Grafana agent observability for Hermes Agent

https://github.com/alexander-akhmetov/grafana-agento11y-hermes
4•eventuallyacat•3h ago•0 comments

Zapping Rocks Unlocks Stimulated Geologic Hydrogen

https://spectrum.ieee.org/stimulated-geologic-hydrogen
20•adm4•9h ago•6 comments
Open in hackernews

Fixrleak: Fixing Java Resource Leaks with GenAI

https://www.uber.com/blog/fixrleak-fixing-java-resource-leaks-with-genai/
17•carimura•1y ago

Comments

stevoski•1y ago
> “Resource leaks, where resources like files, database connections, or streams aren’t properly released after use, are a persistent issue in Java applications”

This was true maybe back in 2005. Java has had try-with-resources for a loooong time. As I see it this has been the dominant idiom for ages, for handling resources that might leak.

okr•1y ago
People tend to forget. Stream-API is a good candidate, that people like to not consider for leakage. If you don't own your stream, if you do not definitly know, that your stream comes from a collection, then ya better close it with a try-block.
bob778•1y ago
How much effort was spent automating this to fix 112 instances across Uber’s code base? I assume code reviews would catch any new issues so this seems like overkill for a small one-off task?
hawk_•1y ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•1y ago
It gives marketing team at Uber to say "wE uSe AI hErE!!1". C-levels approve since anything AI gets a nice pump.

Engineering wise. This adds nothing. It’s an absolute waste of compute and energy to run this through LLMs

sigotirandolas•1y ago
> This analysis ensures that FixrLeak skips functions where resources are passed as parameters, returned, or stored in fields, as these resources often outlive the function’s scope.

> FixrLeak delivers precise, reliable fixes while leaving more complex cases for advanced analysis at the caller level.

In other words, this will only fix trivial leaks, which are best seen as a language design issue and can be fixed by RAII, reference counting, etc.

It won't fix the more insidious leaks like `UNBOUNDED_QUEUE.add(item)` that are more likely to pass through code review in the first place.

xyst•1y ago
Using AI when a static scanner like SonarQube easily picks up these types of resource leaks, especially in Java.

Peak waste.

What’s next?

"Get rid of your GitHub dependabot alerts and replace it with my shitty ChatGPT wrapper”

rvz•1y ago
> Using AI when a static scanner like SonarQube easily picks up these types of resource leaks, especially in Java.

Exactly.

It's very disappointing to see that Uber engineers would rather trust an LLM to that claims to spot these issues when a battle-tested scanner such as SonarQube would have caught this in the first place.

The LLM hype-train is almost just as bad as the JavaScript hype train in the 2010s where some of the worst technologies are used on everything.

rvz•1y ago
Why exactly do you need LLMs for this when efficient alternatives like SonarQube or checkstyle already do this without the expensive waste LLMs create?

This adds little to no technical advantage over existing solutions what so ever for this particular use case.

yahoozoo•1y ago
stupid af
Traubenfuchs•1y ago
So you tell me those 200-600k software engineers that can easily solve leetcode hard are so incompetent they missed using try-with-resources at such scale, they needed to introduce new AI tooling to fix it?

Hey Uber, I am from the EU, I usually can‘t even solve leetcode medium but I will write you scalable, spotless Java for a third of the salary.

Our industry and its economics are a joke.

hello_moto•1y ago
So you write bug-free scalable code 100% in any jobs you ever worked for?

I guess we don’t need QA and Dev/Staging environment

rad_gruchalski•1y ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•1y ago
But can you leetcode heh.
TYMorningCoffee•1y ago
A lot of commenters point out that there already are many established static checkers that do this. That is not what Uber attempts here.

Uber is not proposing a static checker. They even use sonar qube in their architecture. They propose using an LLM to resolve the leak detected by sonar qube.