frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

I turned my security cameras into an automatic bird identification system

https://jasontucker.blog/how-i-turned-my-security-cameras-into-an-automatic-bird-identification-s...
211•speckx•3h ago•62 comments

Playa Phone

https://playaphone.com/
351•cutoff•5h ago•145 comments

A walkable ASCII cyberpunk city in one HTML file [video]

https://www.youtube.com/watch?v=3YtygAx_C6A
77•keithcarolus•1h ago•14 comments

Show HN: Laser Graffiti

https://laser.consti.de
46•con•2d ago•12 comments

Smartphone LED detects hidden cameras with AI

https://www.chosun.com/english/industry-en/2026/08/30/SBFXUIJQYZEARKP5T4FBAY25HQ/
46•geox•1d ago•12 comments

Tmp.0ut, Vol. 5

https://tmpout.sh/5/
58•kmstout•6d ago•3 comments

ChatGPT Work Tool and Skill Reference

https://codex-tool-reference.simonw.chatgpt.site/
135•ijidak•5h ago•46 comments

Dwarf Fortress is getting the mother of all magic updates

https://www.rockpapershotgun.com/dwarf-fortress-is-getting-the-mother-of-all-magic-updates-extend...
138•Tomte•4d ago•29 comments

Apple caught off guard by AI demand for Mac Mini and Mac Studio

https://www.macrumors.com/2026/08/30/apple-unexpected-mac-mini-and-studio-demand/
166•thm•7h ago•194 comments

Weave (YC W25) is hiring ML, AI, product, & design engineers

https://jobs.ashbyhq.com/workweave
1•adchurch•1h ago

Cheap GPS jammers are filling the world with navigation dead zones

https://www.wsj.com/tech/gps-jammers-dead-zones-e76f3261
46•vinnyglennon•1d ago•39 comments

ravynOS: Pre-alpha open-source OS based on Darwin, FreeBSD, Apple open-source

https://ravynos.com/
102•Bluestein•3h ago•73 comments

Kids These Days

https://smallpotatoes.paulbloom.net/p/kids-these-days
21•speckx•2h ago•21 comments

Show HN: Corporate Mind Games – logic puzzles with a sarcastic corporate theme

https://corporatemindgames.com/
18•dontwordle•3h ago•7 comments

C++26: Standard Library Hardening Experiments

https://www.cppstories.com/2026/hardening-experiments/
64•ibobev•5h ago•37 comments

Launch HN: Almanac (YC S26) – AI that knows your company

https://usealmanac.com/
28•kushagrchitkar•4h ago•35 comments

Dimethyl Mercury Exposure Incident at MIT

https://twitter.com/andrew_n_carr/status/2093524390390694232
67•notRobot•2d ago•44 comments

I think the military commissary's freezers were hacked

https://signalandsilence.substack.com/p/i-think-someone-hacked-the-commissary
143•jcurbo•8h ago•82 comments

Show HN: We built the smallest dual-band aircraft tracker

https://pantsforbirds.com/the-worlds-smallest-dual-band-ads-b-receiver-module/
52•CoolNamesAllTkn•4d ago•12 comments

Terrance Tao explains 6 essential mathematical concepts [video]

https://www.youtube.com/watch?v=OOMx2BHHWtE
21•matthewsinclair•21h ago•0 comments

Internet centralization and the original sin of NAT

https://dreamstation.systems/personal/ntppost.html
115•robinpie•17h ago•78 comments

'Stunning' percolation proof solves decades-old puzzle about phase transitions

https://www.quantamagazine.org/stunning-percolation-proof-solves-decades-old-puzzle-about-phase-t...
15•tzury•2h ago•3 comments

I built a forgetting curve for an agent with one user

https://eris-system.dev/blog/forgetting-curve
5•hagbardCelin3•6d ago•0 comments

The Snow/Leavis ‘two cultures’ clash

https://aeon.co/essays/at-the-heart-of-the-snow-leavis-two-cultures-clash
57•Hooke•5h ago•29 comments

Konrad Zuse Museum shutting down due to lack of funding

https://www.heise.de/en/news/Zuse-Computer-Museum-ZCOM-in-Hoyerswerda-faces-closure-11344513.html
111•virtualritz•3h ago•58 comments

Launch HN: Hebbian Robotics (YC S26) – Build scalable robotics data pipelines

https://github.com/Hebbian-Robotics/hflow
29•kstonekuan•5h ago•10 comments

OpenShot 4.0 – Open-source video editor

https://www.openshot.org/blog/2026/08/30/openshot-40-record-edit-color-like-never-before/
471•metrofun•10h ago•106 comments

Separating logic and language

https://news.mit.edu/2026/separating-logic-and-language-0708
25•myelinscience•3d ago•18 comments

Euphemisation of Taboo Areas [pdf]

https://ajmp.uwr.edu.pl/wp-content/uploads/sites/39/2023/12/10_Kleparski.pdf
12•Eridanus2•4d ago•0 comments

Accidental Aesthetics and Romance of Power Wires

https://www.governance.fyi/p/accidental-aesthetics-and-romance
20•crescit_eundo•21h ago•8 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.