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Show HN: UPC Label Maker – 1:1 PostScript point barcode imposition for Avery/FBA

https://upclabelmaker.com/
1•dirtyfancy•23s ago•0 comments

Show HN: A Kotlin compiler written in Go, 10x faster than kotlinc

https://github.com/barteo/kotlin-compiler-go
1•barteo•6m ago•0 comments

Why Anthropic's Filing Crushed Tech Stocks

https://www.thebignewsletter.com/p/why-anthropics-filing-crushed-tech
1•chmaynard•7m ago•0 comments

Show HN: L4H – seL4-based hypervisor for Linux VMs

https://github.com/losfair/l4h
1•losfair•8m ago•0 comments

Show HN: NullPrime – do AI models know when they can't know?

https://github.com/bmiedlar/nullprime
1•bmiedlar•8m ago•0 comments

Show HN: Million Piece Puzzle

https://puzzle.io27.com/
2•jeffbaumes•10m ago•1 comments

I love the NYC Marathon. It's the runner pooping on my lawn that bugs me

https://www.independent.co.uk/news/world/americas/running-poop-lawn-garden-mystery-b3076598.html
2•georgecmu•13m ago•0 comments

YC funded a startup $1.3M to build silent speech – a dev on x built it in 9mins

https://startupfortune.com/a-startup-raised-13-million-for-silent-speech-glasses-and-a-developer-...
3•mervikhaums•14m ago•1 comments

Leo Adds E2E Encryption, Oblivious HTTP, and Verifiable Confidential Computing

https://brave.com/blog/browser-ai-e2ee/
2•conferza•15m ago•0 comments

Open Science: The open-source AI workbench for scientific research

https://github.com/synthetic-sciences/openscience
1•hentrep•22m ago•0 comments

Polish opposition leader floats EU exit talks to force reforms

https://abcnews.com/International/wireStory/polish-opposition-leader-floats-eu-exit-talks-force-1...
2•Markoff•23m ago•1 comments

Steve Jobs Told Tim Cook Never to Ask 1 Question. Apple's Touch Mac Shows Why

https://www.inc.com/connor-jewiss/steve-jobs-told-tim-cook-never-to-ask-this-1-question-apples-ne...
1•connorjewiss•25m ago•1 comments

NASA's Voyager 1 mysteriously lost touch with Earth

https://mashable.com/science/nasa-voyager-1-communication-outage
2•entryleveljobsc•26m ago•0 comments

World trekker Karl Bushby's final push home to Hull

https://www.bbc.co.uk/news/articles/cq8rz38jr50go
2•lifeisstillgood•32m ago•0 comments

Scalable Vector Grief

https://portswigger.net/research/scalable-vector-grief
2•birdculture•34m ago•0 comments

Anthropic's path to the Nasdaq just got a lot bumpier

https://www.cnbc.com/2026/10/31/anthropic-ipo-ai-spending.html
2•koolba•36m ago•2 comments

UriScanAI – An AI-powered urine color analyzer and hydration tracker

https://play.google.com/store/apps/details?id=com.uriscanai.app&hl=en_US
1•husainkanchwala•36m ago•0 comments

Ask HN: Deployed vibecoded apps in prod at scale?

2•username_my1•37m ago•0 comments

Ask HN: What is your halloween costume?

1•qifzer•37m ago•0 comments

Made a site with file tools that don't upload your files

https://capyfiles.com/
1•kevinrusev•40m ago•0 comments

Pedigree Collapse

https://en.wikipedia.org/wiki/Pedigree_collapse
3•franze•43m ago•0 comments

Prospero: A new coding harness for a more civilized age

https://nullprogram.com/blog/2026/10/31/
3•fovc•44m ago•0 comments

Mystery of 60-Second Fluctuations in Power Grids Solved

https://www.fz-juelich.de/en/news/archive/press-release/2026/mystery-of-60-second-fluctuations-in...
3•_Microft•45m ago•0 comments

The Case for Synthesized Data Compression

https://utndatasystems.github.io/blog/2026/synthesized-compression/
3•frostbyte7•47m ago•0 comments

Hack Could Leave Popular Fan Fiction Site AO3 Offline for Weeks

https://www.nytimes.com/2026/10/30/arts/ao3-fan-fiction-site-down.html
2•bookofjoe•48m ago•1 comments

Fail2Ban UI – Manage Fail2Ban across multiple Linux hosts from one dashboard

https://github.com/swissmakers/fail2ban-ui
2•deepwather•50m ago•0 comments

Doomception: Doom inside Doom inside Doom, and round again

https://kodoque1.github.io/doom_ace/
4•ForgotIdAgain•52m ago•1 comments

Atlas VTT: A virtual tabletop inside Obsidian

https://atlas-vtt.dev
2•Tomte•56m ago•0 comments

Cookie Status: browser tracking protections compared

https://www.cookiestatus.com
2•justus_bluemer•57m ago•0 comments

Towards a virtual embryo that can predict what happens when genes change

https://arxiv.org/abs/2610.40447
2•Betelbuddy•1h 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 ...