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Making LEDs in the Home Fab

https://hackaday.com/2026/08/23/making-leds-in-the-home-fab/
1•rmason•1m ago•0 comments

Does Chess Make You Smarter? What Chess Can Teach Us

https://www.psychologytoday.com/us/blog/finding-a-new-home/202608/does-chess-make-you-smarter-wha...
1•amichail•2m ago•0 comments

Slash Pages

https://slashpages.net/
1•jcbhmr•2m ago•0 comments

Paul Graham on X: if I were 17. I'd learn how to build LLMs from scratch

https://twitter.com/paulg/status/2091544343589060625
1•bilsbie•2m ago•0 comments

Show HN: Khaos – Kafka traffic and failure simulator, rewritten in Go

https://github.com/aleksandarskrbic/khaos
1•skrbic_a•3m ago•0 comments

Cybernetics and Ghosts

https://robinrendle.com/notes/cybernetics-and-ghosts/
1•robin_reala•4m ago•0 comments

Show HN: Clothes Patterns You Can Make Based on Photo

https://github.com/Ag3497120/photoloset
1•pakupaku•5m ago•0 comments

Engineerification

https://eug.github.io/posts/engineerification.html
1•eugf_•7m ago•0 comments

OpenStar demonstrates dipole fusion reactor concept

https://www.world-nuclear-news.org/articles/openstar-demonstrates-dipole-fusion-reactor-concept
1•mpweiher•9m ago•0 comments

Rural Village in Spain Is Welcoming Digital Nomads with Open Arms

https://www.cntraveler.com/story/this-rural-village-in-spain-is-welcoming-digital-nomads-with-ope...
1•simonebrunozzi•9m ago•0 comments

Meowzip: Cat Logic Puzzle (Android)

https://play.google.com/store/apps/details?id=com.nekodu.zipgame&hl=en_US
1•cgoksu•10m ago•0 comments

Wiki Is Not Enough [Information Architecture for LLMs]

https://replicated.live/blog/wiki.html
1•gritzko•10m ago•0 comments

Georgia police are searching for an elderly man who found $30 and kept it

https://twitter.com/Polymarket/status/2091240990720110701
1•bilsbie•10m ago•0 comments

Show HN: Loading GitHub PRs in 50ms instead of 1–3s+

https://github.com/theolundqvist/pr-cockpit
2•theolundqvist•12m ago•0 comments

An elliptic curve of rank ≥ 31

https://elliptic-rank.icarm.cloud/curve/302
1•robinhouston•13m ago•0 comments

Show HN: PureJsImage, image codecs and scientific raster I/O in TypeScript

https://purejsimage.com/demo/
1•ardme•14m ago•0 comments

AI for people who still browse the web: customize and automate any website

https://thisisrobin.ai/
1•nikolas1814•15m ago•0 comments

bbolt: an embedded key/value database for Go

https://github.com/etcd-io/bbolt
1•saikatsg•15m ago•0 comments

We gave nine LLMs the same PDF. Two answered without reading it

https://theaijudge.com/en/blog/we-gave-nine-llms-the-same-pdf/
3•inigocollado•16m ago•0 comments

Robin – Customize and automate any website with AI

1•nikolas1814•20m ago•0 comments

Decoding silent reading from non-invasive EEG

https://arxiv.org/abs/2608.20186
3•root-parent•27m ago•0 comments

How to Exit Vim: A Complete Guide for Beginners and Pros

https://linuxvox.com/blog/how-to-exit-vim/
2•dxs•27m ago•2 comments

The exact moment body of the detailed fluctuation theorem

https://twitter.com/gavincrooks/status/2088643200038883830
1•eamag•27m ago•0 comments

Concurrent Servers: Part 8 – Go

https://eli.thegreenplace.net/2026/concurrent-servers-part-8-go/
1•mfrw•28m ago•0 comments

Japan Turned Department Stores into Dreamworlds

https://thereader.mitpress.mit.edu/how-japan-turned-department-stores-into-dreamworlds/
5•devonnull•29m ago•0 comments

My Thoughts on Owning Hardware and Software, Starting with Phones

1•revanthmatha•31m ago•1 comments

A credential is not authorisation: the missing security boundary for AI agents

https://medium.com/@yacine.kellib/a-credential-is-not-authorisation-6cf9932f29c3
1•Yacine_c75•31m ago•0 comments

RIP EJMR (2008-2026)

https://www.chrisbrunet.com/p/rip-ejmr-2008-2026
2•root-parent•31m ago•1 comments

Tmpout: Elf Research – Edition 5

https://tmpout.sh/5/
2•ghuntley•32m ago•0 comments

Is there a pending AI 'debt bomb' crisis? No. This isn't Enron 2.0

https://www.theguardian.com/technology/2026/aug/23/ai-debt-bomb-crisis
3•Symbiote•33m ago•3 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 ...