MurphyA/hacker-news huggingface dataset:
by oasisbob | 2025-10-06 15:32:25+00:00
> I would expect it wouldn't be sufficient for a lithium ion battery fire - you'd temporarily displace the oxygen

(Edit: sorry, in hindsight it's obvious the comment I'm replying to was referring to inert gas systems, and not halogenated systems)

Halon and friends don't work through an oxygen displacement mechanism, their fire suppression effects are primarily due to how the halogen moieties interfere with the decomposition of other substances in the flame. IIRC, A key mechanism is the formation of hydrogen(!) from hydrogen radicals.

Apparently if the calibration is correct, halon can de deployed in a space to suppress a fire without posing as asphyxiation risk.

A good review is here: https://www.nist.gov/system/files/documents/el/fire_research...
Show HN: Voicescri.pt – generate code hands-free with voice agents (BYOK)
by codybontecou | 2025-10-06 15:33:28+00:00
What it is: Voicescri.pt lets you build apps hands-free in the browser. Speak tasks like “scaffold a Nuxt app with Supabase auth” or “open a PR fixing X,” and the agent does it.

How it works (high level): a realtime voice agent builds out Github Issues with "@claude" appended; Claude Code’s GitHub Action executes coding tasks headlessly in the cloud, creating a PR that our voice agent can then merge back in or continue iterating on.

Why I built it: I live and work from an RV. I have a ton of free-time while driving and wanted a way to prototype and write code without a keyboard.

What’s different: Entirely client-side app with bring-your-own-key support Free tier: 5 conversations/day; one-time payment unlocks unlimited conversations.

Looking for feedback on: latency, failure modes, the prompts you’d want pre-baked, and tools you'd like integrated.

Link: https://www.voicescri.pt Demo: https://www.youtube.com/watch?v=vUGgWjYQGIE

Happy to answer questions!

p.s. The first 90 customers can use the LAUNCH90 coupon for 90% off.
by D-Machine | 2025-10-06 15:33:29+00:00
I would also broadly agree that the overuse of statistical language and explanations is probably more driven by historical trends in NLP. I was always more interested in computer vision (including segmentation) and even deep regression. Especially in the case of deep regression, with the absence of a softmax and the ease of constructing task-specific custom loss functions (or like you say, the hinge loss example), it always seemed to me pretty clear none of this was all ever really particularly statistical in the first place.

I will definitely check out those RAAM and LRAAM papers, thanks for the references. You definitely seem to have a more rich historical knowledge than I do on these topics.
by fishgoesblub | 2025-10-06 15:33:36+00:00
I love XMPP. I've never missed a notification with it and I wished I switched back to it sooner rather than sticking with Matrix, I do wish it gets more love these days. I've been tempted to make my own desktop client and integrate VoIP with something like Mumble to achieve a Discord like experience with voice channels, but that's way beyond my pay grade.
by Arathorn | 2025-10-06 15:33:40+00:00
fwiw, the vast majority of Matrix encryption errors got fixed by 2024 (https://www.youtube.com/watch?v=FHzh2Y7BABQ etc).

Search on mobile (in Element X) is on its way and is making good progress: https://youtu.be/Q6NSmptZIS4?t=1297 from a demo from a few days ago.

Finally, self-maintaining servers now exist (https://element.io/server-suite, complete with AGPL distro: https://element.io/server-suite/community)

(On the other hand, notification reliability on Android is still a known problem on Element X for some users that we're working on.)
by sito42 | 2025-10-06 15:33:58+00:00
> As much as people like to use NumPyro and sometimes even PyMC to generate JAX code, I think it may be easier in the end to just write JAX directly. That way, nothing gets between you and JAX and you don’t have to figure out how to filter JAX through middleware. When you do that, the models can be organized very much like in Stan.

^much truth. Nascent libraries like distreqx make it much easier to work at a lower level while maintaining some of the log density affordances that PPLs provide.

https://github.com/lockwo/distreqx
by johnmaguire | 2025-10-06 15:34:32+00:00
The problem isn't the question - which I have answered you on elsewhere - it's that you're not engaging from a place of curiosity and understanding. This isn't how I know you to be and it's really quite sad. (I also don't watch any news media - on YouTube or TV.)

You ignored the bulk of what I wrote, and responded with a one-sentence question, and then went on to tell me that I only have these beliefs because my propagandists want it to be so. This isn't knowable and it's a gross accusation I haven't made about you, despite how easy it is to make.

The irony of your own comment here is disgusting.
by joshfischer1108 | 2025-10-06 15:34:44+00:00
We’re building an open-source framework for secure agentic permissioning based on the new IETF GNAP standard.

TwigBush is a Go-based Authorization Server and CLI for developers exploring how autonomous systems, AI agents, and distributed apps can negotiate fine-grained permissions safely. It supports key-bound tokens, real-time grant updates, and policy hooks (OpenFGA, etc.) that are all open and auditable.

If you’re interested in secure agent-to-agent interactions, decentralized trust, or the next evolution of OAuth, I’d love your thoughts and feedback.

Discussion link: https://github.com/orgs/TwigBush/discussions/24
Show HN: runCLAUDErun – Scheduler for Claude Code
by flysonic10 | 2025-10-06 15:34:51+00:00
I built runCLAUDErun because I got tired of manually running the same Claude Code tasks every day.

It's free and it runs locally.

What it does: It's a macOS app that schedules your local Claude Code to run on any schedule you want - daily, weekly, or custom cron expressions.

My use case: Every night at 11pm, it automatically summarizes my Obsidian daily notes.

But, it can schedule any Claude task - code reviews, data processing, report generation, web research, file organization, etc...

Technical details: - Native macOS app (Electron + React) - Uses launchd for scheduling (proper macOS citizen) - Stores tasks/runs locally in SQLite - Wraps the claude CLI to capture output and track runs - 100% local - no servers, no accounts required

Why not just use cron or launchd? You could! But this gives you: - GUI for managing tasks - History of all runs with output - No terminal/cron knowledge needed - Easy enable/disable of tasks

It's free and open source. Would love people to try it, test it, and give me feedback.

Get it here: https://runclauderun.com

--

What use cases do you have for repetitive AI tasks?
by legacynl | 2025-10-06 15:35:25+00:00
> No it doesn't require that because the vast majority of people aren't rational actors and they don't optimize for the quality of their work - they optimize for their own comfort and emotional experience.

People are rational, and the example you give actually shows that; they prefer reduced workload, so they optimize for their own comfort and emotional experience. What isn't rational about that?
by jauntywundrkind | 2025-10-06 15:35:50+00:00
Kind of interesting seeing mise grow and grow. Others have noted they encountered it first as a direnv replacement. At my last job it was an asdf tool-installer replacement. It's also a task and now mono-repo task runner.

It feels a little fragile to me to try to tackle so many concerns: if folks start relying on mise for more capabilities and one of them falls short, isn't as good as it could be, that could be a big hurt. There's definitely a nice conceptual win to having an all in one tool, but scoping up ambition feels risky.

Especially with task running, it feels like there's really so many very specific expert concerns that come into play. Being able to have a task graph & understanding the minimum work needed, being able to run only downstream tasks is a pretty important need, and that really gets into programming language specific views of what's happening. The idea of having something generic & so all is tempting but it feels impossible to get satisfactory results here.

Beyond Mise specifically, it's just interesting seeing the continuum between specific & multi-purpose tool, and seeing how software tends to scope itself up.
by K0balt | 2025-10-06 15:35:52+00:00
Only source is that I’ve been a sometimes-mariner and cruising family captain since the 80s, hearing about the reports on the cruiser HF nets, and gradually witnessing a change from often aggressive , sometimes disastrous encounters to mostly peaceful or even sometimes friendly or helpful encounters into the 2010’s.

I’m sure there is data somewhere, though. In the 90s, the gradual drop off in attacks was widely attributed to whales that witnessed whaling aging out. I doubt there is any scientific validation for this theory, but it is plausible as there are many accounts of whales with old whaling wounds being exceptionally aggressive, with some becoming legendary in their own right.
by codyb | 2025-10-06 15:36:00+00:00
Thank you for writing this!

It is getting harder and harder to continue buying Apple products and I have moved to buying refurbs as the electronics space is quite limited in options and the ecosystem lock in is real.

It's a shame, because I was a huge fan of Apple's privacy stances and their work on accessibility.

I emailed tim.cook@apple.com directly the day he stood behind Trump at his inauguration. Didn't get a bounce back, so maybe someone read it.

Stand up, fight back!
by ThrowMeAway1618 | 2025-10-06 15:36:36+00:00
>In general the more difficult your degree the better it teaches you how to learn, because you are forced to learn more difficult stuff.

How right you are! From now on I'm only hiring folks who created abiogenesis in a cereal bowl while fellating a hungry lion. Anyone else had it much too easy, amirite?

It's either that or just folks who discovered a new elementary particle while defending Afghani women from the Taliban.

Anything else would be way too easy.
by Levitating | 2025-10-06 15:36:37+00:00
What does "better" mean?

The simple calculations typically used for rendering graphics can easily be parallized on the GPU, hence it's faster. But the result should be identical if the same calculations are done on the CPU.

Also GUI frameworks like iced and egui typically support multiple rendering backands. I know iced is renderer agnostic, and can use a number of backands including the GPU graphics APIs Vulkan, DX12 and Metal.
by npodbielski | 2025-10-06 15:36:57+00:00
I am working on entire new hobby project written on minimal apis and I checked today before writing answer to your comment: I did not used any attributes there, beside one 'FromBody' and that one only because otherwise it tries to map model from everywhere so you could in theory pass it from Query string. Which was extremely weird.

Where did you saw all of those attributes in minimal APIs? I honestly curious because from my experience - it is very forgiving and works mostly without them.
by dabockster | 2025-10-06 15:37:12+00:00
The largest moat I’ve seen with Amazon and e-commerce in general has been the logistics aspect of it. Because even when 90%+ of the goods sold are junk, the remaining 10% are lower volume niche items or hard to find in retail stores for various reasons. E-commerce can absolutely unleash underserved and redlined areas, for example.

So honestly, I think we haven’t even gotten close to the rock bottom point where people will actually start cancelling things like Prime. Especially while the competition still won’t sell their goods to “dirty” areas. And then people wonder why Amazon and Walmart are so big.
by sudosysgen | 2025-10-06 15:37:16+00:00
The Iranian missile arsenal and production is now focused on solid fueled missiles, so they were emerging from a predictable place, but with a fuelled rocket they could fire in minutes.

Since it took at least an hour for a cruise missile to make it's way and around 15 minutes for an ALBM to make it's way, that means that once Israeli drones started being shot down, they were able to dig out the entrances, exit and launch faster than it took for a munition to be delivered.

Of course if Israel had been able to fly manned aircraft deep into Iran and for prolonged periods of time, that would have been impossible, and they would actually have been unable to fire. But that wasn't the case and so they were able to fire, probably limited by the ability to dig out the entrances and synchronize launches between different sites.
by yorwba | 2025-10-06 15:37:29+00:00
Direct link to paper: https://www.usenix.org/system/files/conference/usenixsecurit...

Specifically, they built a reply-spam detection mechanism: apparently there are at least two propaganda networks on Telegram that reply to messages containing certain keywords with some tangentially-related message, and different accounts in the network reuse the same messages.
by dijit | 2025-10-06 15:37:31+00:00
You're disappointed.

I'm disgusting.

Lot's of name calling and appeals to emotion.

But it seems, you haven't accused me of being wrong, I didn't engage with the bulk of your comment because it's completely irrelevant and factually inaccurate in many places, so there's no point in going down the path of arguing details when there's a clear and obvious double standard that we could talk about instead - one that gets to the meat of the issue- if it's not newsworthy as you claimed.

So yeah, I think we're done here. Clearly you're not able to reconcile these situations, and to be clear: you haven't answered me like you claimed.

All that has been proven here today is that you cannot think impartially across political lines at things on a human level.
by ratelimitsteve | 2025-10-06 15:37:44+00:00
aiding and abetting is already a crime, and a very different one. we already have case law that warning people about the presence of police does not amount to aiding and abetting from people flashing their lights to warn others about a speed trap. even if the flasher and/or flashee are breaking the law, as long as they don't physically interfere with the police its within the realm of free speech even though it could potentially hinder them. (https://firstamendment.mtsu.edu/article/headlight-flashing/#...).
by johnmaguire | 2025-10-06 15:38:03+00:00
I am disappointed, yes - this is a feeling, attributed to me. What you did is disgusting - not you, please don't warp words. Where is the name calling?

Yes, we're done here. You are criticizing me for not answering a question - which I answered, off HN - when you ignored the bulk of what I wrote. Your casual dismissal here doesn't resolve that.

Look in the mirror.
by anonymous_sorry | 2025-10-06 15:38:18+00:00
That's certainly a reasonable argument.

Another is that this is a new and poorly understood (by the public at least) technology that giant corporations make available to minors. In ChatGPT's case, they require parental consent, although I have no idea how well they enforce that.

But I also don't think the manufacturer is solely responsible, and to be honest I'm not that interested in assigning blame, just keen that lessons are learned.
by razoorka | 2025-10-06 15:38:22+00:00
It is. What you're describing is what used to be called financial velocity without value creation.

We're watching a cycle where companies raise, reinvest, and report "growth" that's mostly internal money circulation — cloud credits, infra leases, or pre-paid AI capacity deals that move cash between subsidiaries or friendly vendors. None of it produces new productivity; it just inflates asset books.

Big Tech's current AI spending is a perfect example. Microsoft, Google, Amazon, and Meta will spend around $364 billion on infrastructure this year — roughly double their historical capex ratios. Yet revenue growth in their core businesses is slowing. They're scaling faster than they can monetize, essentially subsidizing the appearance of progress.

The real red flag is cultural: when companies optimize for spend instead of outcomes, engineering starts following the same pattern — more abstraction, more compute, less efficiency. Eventually, both finance and technology hit physical limits.

If you're interested, I broke down the numbers and engineering side of this dynamic here: https://techtrenches.substack.com/p/big-techs-364-billion-be...
by bonoboTP | 2025-10-06 15:38:53+00:00
From the book

> Philosophy behind the Napkin approach

> As far as I can tell, higher math for high-school students comes in two flavors:

> • Someone tells you about the hairy ball theorem in the form “you can’t comb the hair on a spherical cat” then doesn’t tell you anything about why it should be true, what it means to actually “comb the hair”, or any of the underlying theory, leaving you with just some vague notion in your head.

> • You take a class and prove every result in full detail, and at some point you stop caring about what the professor is saying.

> Presumably you already know how unsatisfying the first approach is. So the second approach seems to be the default, but I really think there should be some sort of middle ground here. Unlike university, it is not the purpose of this book to train you to solve exercises or write proofs, or prepare you for research in the field. Instead I just want to show you some interesting math. The things that are presented should be memorable and worth caring about. For that reason, proofs that would be included for completeness in any ordinary textbook are often omitted here, unless there is some idea in the proof which I think is worth seeing. In particular, I place a strong emphasis over explaining why a theorem should be true rather than writing down its proof.
by codyb | 2025-10-06 15:39:45+00:00
Ah! But, of course, I will also be slowing my purchasing cycles which means I'm buying less products over my lifetime.

I plan to ride my laptop out til it dies, not buy another Apple Watch, ride my phone out until I can no longer use it. Etc.

I'll do the same with work equipment instead of getting available upgrades.

And I still have my Apple One subscription because I got the whole family on it, but maybe one day I'll make the sad choice and cut that off too.

Yea, it's absolutely tough, and it's probably meaningless in the singular sense of it all, but if more and more folk think like I do, that will absolutely hit them in their bottom line. And, selfishly, I get to feel decent about where my money is going.
by martin_a | 2025-10-06 15:39:46+00:00
More and more "Energiegenossenschaften" are also founded, I think. At least here in the South-West near Freiburg it feels like every second larger village or community has its own Energiegenossenschaft. They are working on getting solar on every roof, pushing water and wind turbine projects forward and are really working on making the switch to renewables happen. I'm looking to get into some of them to fund the cause. :-)
by byroot | 2025-10-06 15:39:54+00:00
I dropped the entirely because I am on mobile.

We don’t have multiple first hand accounts. All we have is second hand account being relayed by someone with a massive axe to grind against Shopify.

There are a lot of truly committed Rubyists at Shopify, particularly the one handling the relationship with Ruby Central.

The idea that Shopify had done what Joel aledges without a single one of the involved parties on the Shopify side blowing the whistle is preposterous.
Launch HN: Grapevine (YC S19) – A company GPT that actually works
by eambutu | 2025-10-06 15:39:59+00:00
Hi HN! We built Grapevine (https://getgrapevine.ai), a knowledge search system for AI agents that connects Slack, GDrive, Notion, codebases, and more. Our first app is a company GPT that significantly outperforms existing alternatives.

Anyone can setup a Grapevine Slack bot and have it respond to and optionally proactively answer questions that require company context. Here’s a demo video with examples: https://youtu.be/_nrfbZzvxU8

We built Grapevine because we were interested in a ChatGPT that fully understands your company. We'd tried many of the existing tools (including expensive enterprise ones), but while they were good at answering “what is X team’s Q4 goal,” they weren’t good at the day-to-day questions that actually blocked people.

So, our founders and early engineers created a set of 100+ representative questions, from hard technical questions to company-specific knowledge questions. At first, the state-of-the-art “enterprise search” products were getting about 50% of them correct, and our in-house system was getting 35%. But as we solved details in data processing, search algorithm, and more, we eventually achieved 85%. (For reference, the best human score our founders got was 70%)

It’s changed the way we work: popular engineering channels that have 5+ questions / day are fully answered proactively by AI, and people across departments go to the bot first for bug reports, incidents, and support tickets. Dozens of our beta customers have been consistently surprised by the quality of the answers, too.

Security is obviously super important for a product like this. We will never train on your data. In addition, your data is encrypted at rest, in an isolated database from other customers, and the system is SOC 2 compliant with regularly scheduled pen tests. We built it to Gather’s (https://gather.town/) SOC 2 Type II standards - that’s the original virtual office product we launched (and still maintain) out of YC, but we’ve since pivoted to Grapevine.

We put a lot of effort into making Grapevine easy to set up. You can try it now, for free, at https://getgrapevine.ai
by mumak | 2025-10-06 15:40:02+00:00
Me too! A few years back I ported magic-wormhole to Haskell and wrote a few posts about what I learned (https://jml.io/posts/spake2-begins/, https://jml.io/posts/what-is-spake2/). The good folk at Least Authority took over the Haskell implementation: https://github.com/leastauthority/haskell-magic-wormhole
by kstrauser | 2025-10-06 15:40:03+00:00
This is beautiful! Thank you so much!

When I was primarily using Python, I didn't really "get" Mise. Uh, that's what we have uv for! But it really shines when using things like Node where you want a specific version in each directory, and also want common entrypoints like `mise build` or `mise test` in every repo, regardless of its language(s).

Don't get me wrong: I also adore Just as a task runner. It's what got me off of Make, which is incredibly powerful but somewhat lacking in the DevEx department to say the least. It's probably more "powerful" than Mise's tasks. However, Mise's combination of really good — not astounding, but really good — task runners plus all the tool management stuff is unbeatable for the things I work on.
by nadermx | 2025-10-06 15:40:52+00:00
Before being a digital nomad was cool I went full nomad. I remember being in a hostel in Thailand and just throwing away everything I had brought, going down to the basics. Ended up with a similar setup.

The thing is, after years of doing it, learning new languages, making friends all over, and then leaving knowing you might not see them again for ever or for long stints, you start to feel the yearning to be able to connect with people on a deeper level.

Now I have an apartment and basically only travel for weddings, I still go super light. But there is a joy in having variety in clothing or sneakers to wear. Friends who you've had multiple conversations with over the year's, even family who comes to visit you.

I'm happy I rid myself of it all, but I'm also happy that now my apartment has the basics, and maybe a bit more. And I'm fine with it. Life doesn't have to be binary, you can mix and match and end up happy either way.