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Building (Systems) Software with Nix

https://hondu.co/blog/building-systems-software
1•nelup20•12s ago•0 comments

We use /goal to find bugs in Patch the Planet

https://blog.trailofbits.com/2026/07/28/how-we-use-goal-to-find-bugs-in-patch-the-planet/
2•hardhat•32s ago•0 comments

Cognition Is Acquiring Poke

https://twitter.com/cognition/status/2080311229256540194
2•tosh•2m ago•0 comments

A 99-year-old mathematician unraveled a century-old braid mystery

https://www.scientificamerican.com/article/how-a-99-year-old-mathematician-unraveled-a-century-ol...
1•Anon84•3m ago•1 comments

Una Watch: Garmin watch competitor but repairable, open ecosystem and USB-C

https://unawatch.com/
1•pimterry•3m ago•0 comments

I'd not buy a LG monitor

https://beko.famkos.net/2026/07/27/id-not-buy-a-lg-monitor/
3•speckx•5m ago•0 comments

What to Know About Americans Leaving the U.S. in Record Numbers

https://www.wsj.com/us-news/what-to-know-americans-leaving-the-us-ff296092
1•Anon84•5m ago•1 comments

Universal Gravitational Constant Gets a 10-Year Recheck

https://spectrum.ieee.org/universal-gravitational-constant-nist-schlamminger
1•rbanffy•5m ago•0 comments

The five primitives I run a one-person company on

https://methezone.github.io/solo-operator-playbook/five-primitives.html
2•solo_operator•7m ago•0 comments

Guides to help you learn more about Ruby

https://www.rubyforum.org/t/guides-to-help-you-learn-more-about-ruby/572https://www.rubyforum.org...
2•jvrc•8m ago•0 comments

Coding too fast to collaborate

https://chrisloy.dev/post/2026/07/19/coding-too-fast-to-collaborate
2•chrisloy•9m ago•0 comments

Ballpark – a daily game that measures how overconfident you are

https://tfalgiano.github.io/ballpark/
1•tfalgiano•9m ago•0 comments

Astrallist – Extracts Recipes from Food YouTube Videos

https://www.astrallist.com/
4•kushthedevn•9m ago•3 comments

Is Mythos good at cyber bec it kept hacking Anthropic during training?

https://www.lesswrong.com/posts/QKDoZe6EKhxnFjLWK/is-mythos-good-at-cyber-because-it-kept-hacking...
1•FergusArgyll•10m ago•1 comments

Trump may need to allow CN minerals as US industry struggles to hit '27 deadline

https://www.reuters.com/legal/government/trump-may-need-allow-chinese-minerals-us-industry-strugg...
1•littlexsparkee•11m ago•0 comments

Exp_q(x) keeps every qth term in the power series for exp(x)

https://www.johndcook.com/blog/2026/07/26/exp-q/
1•ibobev•13m ago•0 comments

Permutation Roots

https://www.johndcook.com/blog/2026/07/26/permutation-roots/
1•ibobev•13m ago•0 comments

Show HN: JusTTY – a minimal native macOS terminal powered by libghostty

https://github.com/0x96f/justty
1•0x96f•13m ago•0 comments

Printing floating point numbers in binary

https://www.johndcook.com/blog/2026/07/27/float-binary/
1•ibobev•13m ago•0 comments

Hybrid Comeback Powers Extended Range Electric Vehicles

https://spectrum.ieee.org/extended-range-electric-vehicles
1•rbanffy•14m ago•0 comments

You Aren't Going to Like What Comes After America

https://www.nytimes.com/2026/07/28/opinion/canada-trump-tariffs-south-park.html
1•bwood•14m ago•1 comments

Show HN: The Posting Substack API

https://apisubstack.com/
1•bigmuzzy•14m ago•0 comments

The Apocaloptimist's Dilemma and Song

https://theinterconnecteduniverse.substack.com/p/the-apocaloptimists-dilemma-song
1•nigeljohnfarmer•15m ago•0 comments

Person Opposing Data Center Arrested for Clapping at City Meeting

https://www.404media.co/person-opposing-data-center-arrested-for-clapping-at-city-meeting/
3•Brajeshwar•17m ago•1 comments

Show HN: Reply Better AI – browser AI writing that runs on-device or your Ollama

https://chromewebstore.google.com/detail/reply-better-ai/dpdibbijcljdjnafjnmaljphpkfojlkb
1•wpdevant•17m ago•0 comments

Show HN: Country Draw – draw country borders from memory

https://countrydraw.net
1•alanzhan•17m ago•0 comments

Show HN: Git log for your infrastructure (including your AI agent's config)

https://github.com/statedrift/statedrift
2•ibukunolu•18m ago•0 comments

Show HN: Comber explores your app once, then replays QA checks deterministically

https://codecomber.io
1•RADLAB•19m ago•0 comments

Europe's Ultra-Rich Could Fund a Substantial Part of the EU's Budget

https://www.socialeurope.eu/europes-ultra-rich-could-fund-a-substantial-part-of-the-eus-budget
3•robtherobber•19m ago•0 comments

Hugging Face rebuilt a third of its infrastructure after OpenAI agents ran amok

https://www.theregister.com/ai-and-ml/2026/07/28/openais-agent-siege-forced-significant-rebuild-a...
2•joebuckwilliams•20m ago•0 comments
Open in hackernews

Ask HN: What are you currently trying to figure out?

3•gooob•1y ago
i'm trying to figure out why elden ring started stuttering and freezing during gameplay recently, and why the windows operating system has so many little dumb things wrong with it.

Comments

sherdil2022•1y ago
Trying to figure out what to do next and what to do with my life.
gooob•1y ago
how's that going? what are your current options?
sherdil2022•1y ago
Not going good.
scottmcdot•1y ago
How to build a segmentation model based on a sample of data that needs to be representative of the population.
turtleyacht•1y ago
Trying to figure a workaround in ksh for space-delimited filenames:

  for f in $(ls "/mnt/dir"); do
    cp -v "$f" /elsewhere
  done
Because -R doesn't handle retries when cp(1) errors out intermittently (USB MTP to phone). I don't remember it being this hard in bash, or Android just is like this. Hopefully can figure it out without going to perl or C. Maybe dump(8).

Even though 54 GB partition created, it only takes up 22 GB or so. Either missing a lot of files or FFS compacts it well.

turtleyacht•1y ago
Pipe and read per line:

  ls /mnt/dir | while read line; do
    cp -v "$line" /elsewhere
    # substitute with something fancy
    # [ $? -eq 0 ] || cp -v "$line" /elsewhere
  done
nailer•1y ago
If there’s transmission errors, I would recommend using rsync rather than cp. that will keep transferring and running checksums until everything matches.
turtleyacht•1y ago
Thank-you. After installing openrsync(1) (and rsync), files transferred for a bit but failed and dumped core with error 138 (bus error). Maybe a quirk with OpenBSD 7.6, or interaction between simple-mtpfs and the fusefs mount.

In the meantime, after a few retries, the failures are written to a log for a second sweep.

MD5 check helps skip extra copying, but it's overall much slower. It seems okay for a long-running batch job; maybe something we can return to after getting the pictures to display.

The pattern is like

  cp ... || \
    { sleep 2; cp ... ; } || \
    ... || \
    ... || echo "$file" >> retry.log
Not the best way. It has failed before all four times. Going to let it run overnight to see if it completes.
arthurcolle•1y ago
navigating personal 'unemployment' while obsessively hoarding whatever money I can to run experiments / train, finetune models to leverage RL and environment-building in order to use computers, learn tasks, learn from each other, and scale to managing companies (simple, SaaS at first, and eventually, potentially to real-world operations downstream task sets)
nailer•1y ago
I arrived tired to a pre wedding photo shoot this morning, my prospective wife yelled at me, and cancelled the shoot. I walked out because I don’t like people yelling at me. So I am trying to figure out whether I still want to marry her.