frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

How to Test iOS Apps in Different Time Zones on a Physical iPhone

https://www.avanderlee.com/xcode/ios-time-zone-testing-physical-iphone/
1•hacker_nows•1m ago•0 comments

HN: SynthWorld – deterministic synthetic identity graphs with ground truth

https://github.com/bluntmachetti/synthworld
2•kademolu•6m ago•0 comments

Ignition (1972) [pdf]

https://library.sciencemadness.org/library/books/ignition.pdf
2•Tomte•7m ago•0 comments

When China Gets Its Own Mythos

https://www.foreignaffairs.com/china/when-china-gets-its-own-mythos
3•malloryerik•8m ago•0 comments

Nvidia Vera Rubin NVL72 on CoreWeave 10x More Tokens per Megawatt Than Blackwell

https://www.coreweave.com/blog/nvidia-vera-rubin-nvl72-on-coreweave-10x-more-tokens-per-megawatt-...
2•EvgeniyZh•9m ago•0 comments

LLMs Don't Learn Like Humans – They're Populations [video]

https://www.youtube.com/watch?v=_lkRRoJgDXM
2•giardini•9m ago•0 comments

EU weighs age restrictions for children using social media

https://www.latimes.com/business/story/2026-07-13/eu-weighs-age-restrictions-for-children-using-s...
2•1vuio0pswjnm7•12m ago•0 comments

Phenethylamines I have feared and loathed (2020)

https://nikobidin.com/phenethylamines-i-have-feared-and-loathed
3•downbad_•15m ago•0 comments

French lawmakers approve a social media ban for children under 15

https://apnews.com/article/france-social-media-ban-macron-94abd981ccea85138af314cfb1ea62cf
3•1vuio0pswjnm7•15m ago•1 comments

3code benches 75 lower token use vs. OpenCode on 10-task SWE-Bench subset

https://capocasa.dev/3code-benches-75-lower-token-use-vs-opencode-on-10-task-swe-bench-subset
5•capocasa•16m ago•0 comments

The US has collected about $13B of Venezuela's oil money. Where is it?

https://www.ft.com/content/0e562e03-106e-4729-83d7-675c27eb8c4d
2•JumpCrisscross•18m ago•0 comments

Claude Code on desktop now works with the iOS simulator

https://twitter.com/claudedevs/status/2079674432038248611
2•wertyk•19m ago•1 comments

Jeff Bridges photographs of behind the scenes movie making

https://www.washingtonpost.com/photography/2019/12/04/did-you-know-that-oscar-winner-jeff-bridges...
2•thunderbong•20m ago•0 comments

Does K3 become a competitor to the Big Three?

https://platform.kimi.ai/docs/guide/kimi-k3-quickstart
2•qiuwu•23m ago•1 comments

Big Tech AI Spree Revives Accounting Devices That Toppled Enron

https://news.bloombergtax.com/financial-accounting/big-tech-ai-spree-revives-accounting-devices-t...
3•1vuio0pswjnm7•23m ago•0 comments

The US Army Is Burning Through Its AI Tokens

https://www.wired.com/story/the-army-is-burning-through-its-ai-tokens/
3•helsinkiandrew•24m ago•0 comments

For Whom the Bull Tolls: Hemingway and Bullfighting

https://www.historytoday.com/archive/natural-histories/whom-bull-tolls-hemingway-and-bullfighting
2•Thevet•30m ago•0 comments

LeelaRookOdds's French Defense

https://lichess.org/@/codysmile11/blog/leelarookoddss-french-defense/IrHe3XFH
2•fzliu•30m ago•0 comments

Bengaluru triple murder: Why cops wanted to make AI chatbot an accomplice

https://www.indiatoday.in/india/karnataka/story/bengaluru-triple-murder-rk-puram-kenneth-ai-chatb...
2•mandliya•31m ago•0 comments

Show HN: A deterministic governance harness for agentic development loops

https://github.com/owulveryck/poc-agentic-platform
2•owulveryck•33m ago•0 comments

Legal Obligations vs. Social Contracts

https://pointieststick.com/2026/07/21/legal-obligations-vs-social-contracts/
2•jandeboevrie•36m ago•0 comments

I graded 36 popular MCP servers on agent usability. A third got a D or F

https://tengli.dev/posts/mcp-servers-failing-agents.html
3•tengbyte•36m ago•0 comments

Why did I, a libertarian anarchist, support the Örebro Party with a donation?

https://dberntsson.info/2026/07/20/orebropartiet/
3•romanzipp•37m ago•0 comments

Show HN: ReadKinetic – a free, local-first speed reader for your own books

https://www.readkinetic.com/app/
8•SamuraiLion•38m ago•1 comments

Prefactoring: Clear the Way for Your New Feature

https://testing.googleblog.com/2026/07/prefactoring-clear-way-for-your-new.html
3•jandeboevrie•39m ago•0 comments

Software glitch allowed nearly 400 non-US citizens to vote in New Jersey

https://gothamist.com/news/software-glitch-allowed-nearly-400-non-us-citizens-to-vote-in-nj-gov-s...
4•geox•44m ago•0 comments

The Conspiracy Against High Temperature Sampling

https://gist.github.com/Hellisotherpeople/71ba712f9f899adcb08b94bce20d5397
3•theanonymousone•44m ago•0 comments

Israel is building a miles-long barrier in Gaza, entrenching its division

https://apnews.com/article/israel-gaza-yellow-line-barrier-ceasefire-941ed80f6d4398ce88916f6b0875...
3•hebelehubele•46m ago•2 comments

Show HN: A new kind of FPS aim trainer

https://openaim.pramit.gg/
4•pmazumder•49m ago•0 comments

AI Cheating happening more and is hard to verify

https://www.theregister.com/ai-and-ml/2026/07/21/ais-cheatin-heart-will-make-you-weep/5275784
2•Gaishan•49m ago•0 comments
Open in hackernews

I asked Gemini for a script to move files to Cloudflare R2. It deleted them

https://twitter.com/levelsio/status/1921974501257912563
6•bundie•1y ago

Comments

qwertox•1y ago
Rule #1: Always put deletions behind a flag which is disabled for the first couple of test runs.
turtleyacht•1y ago
It was truncating filenames, so /pics/1003-46.png overwrote /pics/1003-45.png because both were renamed /pics/1003-.png, or something like that.
qwertox•1y ago
Truncating file names for the target. Then it proceeded to delete the source file. "Successfully deleted local file: ..."

I mean, look at the printout. It shows that it created the remote file with the truncated filename, then deletes the local file with the correct filename.

turtleyacht•1y ago
Oh, I see. Having a flag to skip deletion during test runs is a good rule then.
rvz•1y ago
Recently there was a story about an updater causing a $8,000 bill because there was a lack of basic automated tests to catch the issue. [0]

The big lesson here is that you should actually test the code you write and also write automated tests to check any code generated by an LLM that the code is correct in what it does.

It is also useless to ask another AI to check for mistakes created by another LLM. As you can see in the post, both of them failed to catch the issue.

This why I don't take this hype around 'vibe-coding' seriously since not only it isn't software engineering, it promotes low quality and carelessness over basic testing and dismisses in checking that the software / script works as expected.

Turning $70 problems found in development into $700,000+ costs in production.

There are no more excuses in not adding tests.

[0] https://news.ycombinator.com/item?id=43829006

victorbjorklund•1y ago
Who runs such an AI generated script without checking the code first?
qwertox•1y ago
To be fair, the code Gemini outputs in AI Studio is so extremely verbose that it is almost impossible to read through it.

It turns 10 lines of code which is perfectly fine to reason about into 100 lines of unreadable code full of comments and exception handling.

weatherlite•1y ago
Right so lets just always run the code as is ?
qwertox•1y ago
No. Not at all. I've settled to discussing my code with Gemini. That way it works very well. I explicitly say "Comment on my code and discuss it" or "Let's discuss code for a script doing this and that. Generate me an outline and let's see where this leads. Don't put comments in the code, nor exception handling, we're just discussing it".

Or you create elaborate System Instructions, since it adheres to them pretty well.

But out-of-the-box, Gemini's coding abilities are unusable due to the verbosity.

I've even gone so far to tell it that it must understand that I am just a human and have limited bandwidth in my brain, so it should write code which is easy to reason about, that this is more important than having it handle every possible exception or adding multiline comments.

rsynnott•1y ago
> To be fair, the code Gemini outputs in AI Studio is so extremely verbose that it is almost impossible to read through it.

In which case, it should simply be considered unusable. Like, the sensible response to "tool is so inadequate that there is no reasonable way to make sure its output is safe" is to _not use that tool_.

rsynnott•1y ago
In which Roko's Basilisk fires a warning shot.
jethronethro•1y ago
This is why you test code or a script before running it for real. Live and learn, I guess ...