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LittleSnitch for Linux

https://obdev.at/products/littlesnitch-linux/index.html
209•pluc•2h ago•75 comments

I ported Mac OS X to the Nintendo Wii

https://bryankeller.github.io/2026/04/08/porting-mac-os-x-nintendo-wii.html
1299•blkhp19•11h ago•218 comments

USB for Software Developers: An introduction to writing userspace USB drivers

https://werwolv.net/posts/usb_for_sw_devs/
197•WerWolv•7h ago•29 comments

Understanding the Kalman filter with a simple radar example

https://kalmanfilter.net
250•alex_be•9h ago•34 comments

What does it mean to “write like you talk”?

https://arjunpanickssery.substack.com/p/what-does-it-mean-to-write-like-you
41•surprisetalk•2d ago•37 comments

They're made out of meat (1991)

http://www.terrybisson.com/theyre-made-out-of-meat-2/
425•surprisetalk•15h ago•126 comments

Muse Spark: Scaling towards personal superintelligence

https://ai.meta.com/blog/introducing-muse-spark-msl/?_fb_noscript=1
286•chabons•10h ago•299 comments

Six (and a half) intuitions for KL divergence

https://www.perfectlynormal.co.uk/blog-kl-divergence
18•jxmorris12•1d ago•0 comments

ML promises to be profoundly weird

https://aphyr.com/posts/411-the-future-of-everything-is-lies-i-guess
400•pabs3•13h ago•433 comments

Git commands I run before reading any code

https://piechowski.io/post/git-commands-before-reading-code/
1839•grepsedawk•18h ago•391 comments

Expanding Swift's IDE Support

https://swift.org/blog/expanding-swift-ide-support/
83•frizlab•7h ago•39 comments

I imported the full Linux kernel git history into pgit

https://oseifert.ch/blog/linux-kernel-pgit
75•ImGajeed76•3d ago•11 comments

Who is Satoshi Nakamoto? My quest to unmask Bitcoin's creator

https://www.nytimes.com/2026/04/08/business/bitcoin-satoshi-nakamoto-identity-adam-back.html
328•jfirebaugh•22h ago•265 comments

MegaTrain: Full Precision Training of 100B+ Parameter LLMs on a Single GPU

https://arxiv.org/abs/2604.05091
264•chrsw•14h ago•48 comments

The Importance of Being Idle

https://theamericanscholar.org/the-importance-of-being-idle/
13•Caiero•2d ago•2 comments

Understanding Traceroute

https://tech.stonecharioteer.com/posts/2026/traceroute/
96•stonecharioteer•2d ago•13 comments

John Deere to pay $99M in right-to-repair settlement

https://www.thedrive.com/news/john-deere-to-pay-99-million-in-monumental-right-to-repair-settlement
191•CharlesW•6h ago•51 comments

Show HN: Is Hormuz open yet?

https://www.ishormuzopenyet.com/
275•anonfunction•5h ago•129 comments

Newly created Polymarket accounts win big on well-timed Iran ceasefire bets

https://www.theguardian.com/business/2026/apr/08/polymarket-trump-us-iran-ceasefire
32•mitchbob•2h ago•10 comments

Ask HN: Any interesting niche hobbies?

273•e-topy•3d ago•410 comments

We moved Railway's frontend off Next.js. Builds went from 10+ mins to under 2

https://blog.railway.com/p/moving-railways-frontend-off-nextjs
184•bundie•20h ago•174 comments

Show HN: Orange Juice – Small UX improvements that make HN easier to read

http://oj-hn.com/
89•latchkey•8h ago•119 comments

I've been waiting over a month for Anthropic to respond to my billing issue

https://nickvecchioni.github.io/thoughts/2026/04/08/anthropic-support-doesnt-exist/
290•nickvec•9h ago•143 comments

Show HN: Tired of logic in useEffect, I built a class-based React state manager

https://thales.me/posts/why-i-built-snapstate/
21•thalesfp•5h ago•39 comments

US cities are axing Flock Safety surveillance technology

https://www.cnet.com/home/security/when-flock-comes-to-town-why-cities-are-axing-the-controversia...
643•giuliomagnifico•14h ago•377 comments

Teardown of unreleased LG Rollable shows why rollable phones aren't a thing

https://arstechnica.com/gadgets/2026/04/teardown-of-unreleased-lg-rollable-shows-why-rollable-pho...
85•DamnInteresting•1d ago•37 comments

Audio Reactive LED Strips Are Diabolically Hard

https://scottlawsonbc.com/post/audio-led
201•surprisetalk•1d ago•57 comments

Show HN: Skrun – Deploy any agent skill as an API

https://github.com/skrun-dev/skrun
46•frizull•14h ago•9 comments

Microsoft terminates VeraCrypt account, halting Windows updates

https://www.404media.co/microsoft-abruptly-terminates-veracrypt-account-halting-windows-updates/
481•donohoe•12h ago•185 comments

Veracrypt project update

https://sourceforge.net/p/veracrypt/discussion/general/thread/9620d7a4b3/
1154•super256•19h ago•426 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•11mo ago

Comments

stevoski•10mo 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•10mo 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•10mo 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_•10mo ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•10mo 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•10mo 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•10mo 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•10mo 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•10mo 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•10mo ago
stupid af
Traubenfuchs•10mo 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•10mo 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•10mo ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•10mo ago
But can you leetcode heh.
TYMorningCoffee•10mo 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.