frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Meta Muse Glimmer – open weights 30B local coding model

https://research.meta.ai/blog/introducing-muse-glimmer-open-agentic-model
177•riordan•1h ago•66 comments

Docker Sandboxes – Disposable, isolated sandboxes for AI agents

https://www.docker.com/products/docker-sandboxes/
283•etoxin•5h ago•166 comments

What Happened to HackerOne?

https://blog.teknogeek.io/posts/what-happened-to-hackerone/
265•hipparchus•9h ago•132 comments

Tail-call optimization in C is relatively recent

https://lwn.net/Articles/1034703/
3•prakashqwerty•19m ago•0 comments

Run Android ARM64 VR APKs on Apple Vision Pro

https://github.com/shinyquagsire23/Klepton
105•LorenDB•8h ago•15 comments

Tail-Call Interpreters in Rust – Jimmy Ostler

https://lordgoati.us/blog/tail-call/
36•amatheus•2d ago•11 comments

An Interesting Fourier Transform – 1/F Noise

https://www.dsprelated.com/showarticle/40.php
58•q7m•3d ago•13 comments

Show HN: Voice driven murder mystery, Interview AI suspects with your voice

https://www.whodunnitai.com/
114•MrRowTheBoat•8h ago•49 comments

COLDCARD's Random Numbers Weren't

https://coldcard.rip/
5•bialyalibaba•4d ago•0 comments

How I use LLMs to learn complex topics

https://laurentiugabriel.github.io/blog/articles/how-i-use-llms-to-learn/
679•laurentiurad•16h ago•429 comments

Taxi drivers rarely die of Alzheimer's

https://theconversation.com/taxi-drivers-rarely-die-of-alzheimers-how-complex-mental-maps-and-spa...
311•jader201•20h ago•218 comments

How We Pushed CDC into Postgres

https://www.snowflake.com/en/blog/engineering/postgres-to-snowflake-replication-mirroring/
102•craigkerstiens•10h ago•14 comments

How Blackwing Pencils are Made [video]

https://www.youtube.com/watch?v=fow-LsdaH2E
19•NaOH•4d ago•3 comments

Ask HN: What are you working on? (August 2026)

264•david927•18h ago•910 comments

Turn satellite imagery into a paper globe you fold yourself

https://foldingglobes.com/
69•dango2506•8h ago•22 comments

Cool URIs Don't Change (1998)

https://www.w3.org/Provider/Style/URI
249•Klaster_1•21h ago•61 comments

An alias-based formulation of the borrow checker (2018)

https://smallcultfollowing.com/babysteps/blog/2018/04/27/an-alias-based-formulation-of-the-borrow...
12•parksb•2d ago•1 comments

ATProto for Distributed Systems Engineers

https://atproto.com/articles/atproto-for-distsys-engineers
94•LelouBil•3d ago•17 comments

Picophysics: Single file physics for games on platforms like N64, PSX, DC

https://gitlab.com/Kazade/picophysics
63•klaussilveira•4d ago•20 comments

Tuxedo No. 2 – Cocktail recipes

https://tuxedono2.com
103•smartmic•15h ago•34 comments

Nearest Pint

https://knowwhereconsulting.co.uk/maps/pubs/
37•bookofjoe•5d ago•22 comments

I made tinnitus my friend, then it disappeared [video]

https://mynoise.net/vlog.php?ep=20260803
162•gregsadetsky•17h ago•135 comments

Everything you do is being recorded

https://www.theatlantic.com/technology/2026/05/ai-wearable-surveillance-countermeasures/687203/
329•ike_usawa•1d ago•279 comments

Show HN: I made alchemical-cosmological PCB badges

https://github.com/KaiPereira/Alchemical-Cosmological-Badges
15•kaipereira•4d ago•1 comments

Auto mode is now the default in Claude Code

https://claude.com/blog/auto-mode-default-in-claude-code
234•sbehere•8h ago•240 comments

New Zealand lost its music media, and what we're building to replace it

https://propelmusic.co.nz/articles/the-sound-went-quiet-nz-music-media
119•berghoffer•15h ago•79 comments

The Ambition Project

https://www.betonit.ai/p/the-ambition-project
50•herbertl•12h ago•5 comments

OpenChamber: An Agentic Development Environment

https://openchamber.dev/
159•hexomancer•18h ago•76 comments

Slap ROM Patcher

https://nyuu.page/projects/slap/
20•apsec112•3d ago•13 comments

"The Persian MâR-Nâmeh Or, the Book for Taking Omens from Snakes" (1892)

https://publicdomainreview.org/collection/marnameh/
64•Thevet•3d ago•12 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.