MurphyA/hacker-news huggingface dataset:
by blacklion | 2026-01-29 13:57:10+00:00
I think, that I want at least hard-real-time OS in any computer which can move physical objects. Linux kernel cannot be it: hard RTOS cannot have virtual memory (mapping walks is unpredictable in case of TLB miss) and many other mechanisms which are desired in desktop/server OS are ill-suited for RTOS.
Scheduler must be tuned differently, I/O must be done differently. It is not only «this process have RT priority, don't preempt it», it is design of whole kernel.

Better, this OS must be verified (as seL4). But I understand, that it is pipe dream. Heck, even RTOS is pipe dream.

About IoT: this word means nothing. Is connected TV IoT? I have no problems with Linux inside it. My lightbulb which can be turned on and off via ZigBee? Why do I need Linux here? My battery-powered weather station (because I cannot put 220v wiring in backyard)? Better no, I need as-low-power-as-possible solution.

To be honest, O think even using one kernel for different servers is technically wrong, because RDBMS, file server and computational node needs very different priories in kernel tuning too. I prefer network stack of FreeBSD, file server capabilities (native ZFS & Ko) of Solaris, transaction processing of Tandem/HPE NonStop OS and Wayland/GPU/Desktop support of Linux. But everything bar Linux is effectively dead. And Linux is only «good enough» in everything, mediocre.

I understand value of unification, but as engineer I'm sad.
by AnimalMuppet | 2026-01-29 13:57:15+00:00
What's your moat? What's your barrier to entry? What's your competitive advantage? If you can vibe code it in a weekend, someone else can vibe code a competing thing the next weekend. You're not going to build something that becomes a long-term business that way, because anybody else can take your business.

For a larger, more complex system, the real barrier is understanding what needs done well enough that you can build something that can do it. (In my opinion, that has always been the real barrier.)
by varjag | 2026-01-29 13:57:26+00:00
A sample of one but ours did fail the inspection (suspension). It also experienced a complete shutdown of instrument panel on the motorway: not something you reproduce easily in a regular inspection but a pretty damn serious condition. Fail to unfold the mirrors/engage parking assistant or rearview camera happened dozens of times.

None of other owners I spoke to were particularly happy with theirs either.
by brk | 2026-01-29 13:57:42+00:00
Factory overhiring can happen easily by adding speculative 2nd and 3rd shifts. No need for extra equipment, tooling, or physical capacity.

Lines with specialty equipment and tooling can also often be sped up. That can allow for other jobs to be added to all the functions that support the processes involved before and after the specialty equipment.

New employees also often require training and some apprenticeship time, meaning they can get hired ahead of actual demand.
by YetAnotherNick | 2026-01-29 13:57:49+00:00
Just doesn't make sense. If you make significantly more money renting TPU, why not rent them cheaper to shift the customers(and save billions that you are giving to Nvidia). TPU right now isn't significantly more cheaper to external customer.

Again I am talking about LLM training/inference which if I were to guess is more than half of the workload currently for which the switching cost is close to 0.
Show HN: I built a pSEO game wiki with Astro and fixed Schema validation errors
by causalzap | 2026-01-29 13:57:57+00:00
I built a static game database (150+ pages) using Astro and a JSON dataset. I faced two main technical challenges:

1. Avoiding "Thin Content": Instead of generic templates, I wrote logic functions to generate unique strategy advice (text) based on the item's data attributes (e.g., if rarity == common && type == mult, generate specific text about scaling issues).

2. Schema/Rich Results: Google Search Console rejected my 'Product' schema because the site doesn't sell anything (missing 'offers' and 'aggregateRating'). I fixed this by mapping the in-game "Rarity Score" to the schema's "ratingValue" and setting a dummy offer price of $0.

The stack is Astro + Tailwind on Cloudflare Pages. Happy to answer questions about the programmatic SEO setup or the schema implementation.
by welshwelsh | 2026-01-29 13:58:13+00:00
How do you know it was the SSRI?

To cherry-pick a quote from a review of SSRI studies:

>the magnitude of symptom reduction was about 40% with antidepressants and about 30% with placebo.

That tells me that antidepressants have some effectiveness, but placebos work shockingly well. You can give someone a sugar pill with no medical properties whatsoever, and a good portion of people will recover, likely crediting the pill for their recovery.
by radiator_1451 | 2026-01-29 13:58:29+00:00
Investigating a murder is posturing? I really don't understand the "bad ass, fear us" language. Do you consider all criminal investigations to be as frivolous?

> odds are all of these deaths are purely accidental/negligent

How can you say that given that the article presents evidence that

> "... someone gave this baby crushed Tylenol-3,” likely mixed in breast milk or formula

Is that an accident according to you, or do you have any evidence that the article is wrong about that conclusion?
by ncasenmare | 2026-01-29 13:58:44+00:00
Hi, author of the blog post here! Thank you for sharing your experience with antidepressants, I'm really glad it worked for you & made your life better.

I did mention the following at the end of the "antidepressants" section, but reading your comment convinced me to move it further up. The intro now reads:

> The "standardised effect size" of antidepressants on depression, vs placebo, is around 0.4. (On average; some people respond much better or much worse.)

Also, I wasn't expecting my article to do well on Hacker News; thank you everyone for the comments & critiques! I'll edit the blog post as I go along, to refine it in response to your comments.
by TheDong | 2026-01-29 13:59:02+00:00
Presumably you also would agree that it's fair if Chrome, Windows, and Lenovo all charged me 30% each for using Patreon via Chrome+Windows on a thinkpad, right?

They're doing about as much to facilitate my use of Patreon as Apple is.

This isn't like a mall at all. This is like a web browser, where apps are webpages, and Apple is insisting that the contents of that webpage are something they can dictate all payment terms on.

For the airport analogy to work, it would have to be that you go to the Airport, go into the electronics store, buy a Kindle, and then the Airport insists it can take 30% not just on the purchase of the kindle, but 30% on every single book you buy on the kindle forever.

Apple taking a cut on the purchase price of an app that a user found via the app store does make some sense. Apple taking a cut of an in-app interaction with a creator that the user almost certainly found elsewhere is nonsense.

What next, should apple take a 30% cut of my rent because I found my apartment on the Craigslist app? Should they take a 30% of my train ticket that I purchased using the Safari app? Why does Patreon have to add a 30% cut on in-app content, when Safari lets me pay for in-app content with my credit card without taking any cut?
by IAmBroom | 2026-01-29 13:59:13+00:00
Another optical engineer here.

I used to wonder WTF was so hard about LED lighting. One R, one G, one B, a shunting resistor and... and then I took a glance under the hood. Oh. Yeah, much dicier than heating up some tungsten and frosting the inside of the bulb.

(Yeah, inventing cheap blue LEDs was some serious heavy-lifting in itself, but that hurdle has been jumped.)
by micik | 2026-01-29 13:59:30+00:00
Great comment. I’m thinking along similar lines — what is there in tech to build? And the answer is, not much for the current cohort of services.

Big product companies with big products are solved problems in their respective fields. Building an Amazon or a Facebook is quite a lot of work. Maintaining it is much less work.

For a while the industry has done a thing where you do infrastructure in five different ways across ten different teams across three departments. It created a lot of “work” but it didn’t create much additional value.

It was done to fuel the illusion of growth, but the actual job positions were completely uncoupled from revenue growth. For a time this was hard to see while global expansion was happening. Revenue was growing rapidly and so was headcount. It seemed to check out, arithmetically, but it’s not sensible. It doesn’t take twice as many workers to service twice as many employees in this industry.

When the global expansion didn’t have to anywhere else to go, and revenue stopped growing, the workforce-sustaining illusion fell apart. Now those companies are unloading everyone but the skeleton crew it takes to maintain the products. That’s a lot of people.
by leoedin | 2026-01-29 13:59:33+00:00
Thanks for this. When I first saw this I was expecting to find it was a dead-end Chinese SoM with an ancient kernel - so the fact it's an iMX (which has great support from NXP) is great.

I had a poke around the u-boot and linux repos they share, and it looks like the changes from mainline are pretty minimal - mostly related to device trees and configuration. That's to be expected for any custom board.

Obviously if the company died before this stuff was mainlined, then someone would need to maintain it. But from what I've seen everything you'd need is out there already.
by hecanjog | 2026-01-29 13:59:40+00:00
I think this is a cool idea, but can you explain the matching process a little more? My hunch is it biases in a way where the more obscure the preference the larger the size of the city? My suggestions were all big cities, one I've lived in before and liked, but I wouldn't really connect to the music in any particular way? Except for that aspect: it was easier to find people who were into obscure niche X in a larger city.

I don't want to be all negative, because I like the idea a lot. What if you were able to find data sources for where musicians are based, or where they play shows most often? Using that might help cut through some of the population bias?

Just ranting into a textfield with my coffee, anyway cool project & thanks for sharing!
by palata | 2026-01-29 13:59:56+00:00
> If you can't use your own keys and verify the process yourself

The thing with security is that it is a gradient. Too many people try to win arguments on security by saying a variant of "anyway you have to trust somebody, so it will never be secure". This is exactly what you are doing here.

Say I trust GrapheneOS, the security model guarantees what I said. Obviously I have to trust something, I won't audit every single line of code and assemble billions of transistors myself.

> every year they are responsible for letting their users get scammed

Second tactic for winning a security argument: "but the users get scammed anyway". Sure they do. Because they have to. If you have a system that popular with zero scam, it probably means that the attackers don't even need to attack the human because the system itself is insecure.
by JoeAltmaier | 2026-01-29 14:00:07+00:00
I just lost my Mom, at 97. We would go to lunch on Tuesday and then grocery shopping. She'd talk of the family and where they all were and what they were doing - it was MY day to catch up.

The last Tuesday we got back and she said "That was too hard. I think that was the last one." I agreed, and thought I'd call her next tuesday just the same and see if she'd changed her mind. But there was no 'next tuesday'.

Anyway, life is a gift and I miss her and Tuesday doesn't come but I feel the gap.
by Timon3 | 2026-01-29 14:00:21+00:00
> Your source clearly says that the first inspection needs to be at least four years after registration, [...]

That doesn't mean the first inspection is only required after four years, only that it must be required after four years. The countries can still introduce stricter rules, like Germanys TÜV - the first inspection has to happen in the first three years here.
by justinclift | 2026-01-29 14:00:22+00:00
Interestingly, Patreon doesn't give creators an option of "Just don't accept donations for us from Apple users" which is what my old project (SQLite Browser / DB Browser for SQLite) would gone with if available. :(

I've instead handed the reins to others, so I don't have skin in this game any more. ;)
Show HN: Changeflow – Giving up on pixel diffs after 10 years of false positives
by stevewillbe | 2026-01-29 14:00:22+00:00
I've been building website monitoring tools since 2015. The core problem with pixel-diff screenshots: every ad rotation, every layout tweak = alert noise. Legal and compliance teams kept asking "just tell me WHAT changed."

So I rebuilt it. Changeflow extracts semantic changes and summarizes them in plain English:

- "FDA posted new adaptive trial guidance (Jan 15)"
- "Competitor raised enterprise pricing 12%"
- "9th Circuit issued opinion on arbitration agreements"

Instead of "47 pixels changed in the header region."

THE HARD TECHNICAL PROBLEMS

Scraping any URL (not just specific sites)

Unlike scrapers built for Amazon or LinkedIn, users give us any URL and expect it to work. Our approach:

Delayed-attach pattern: launch Chrome, let page load naturally, poll /json endpoint for title+URL stability, only THEN attach Puppeteer. Bot detection scripts run against a clean browser.

Three-tier fallback: Linux + datacenter proxy (90% of sites) -> Linux + mobile proxy (9%) -> macOS + real hardware (1%). Cache successful routes per-URL. Expensive path rarely fires.

Real Chrome, not Chrome for Testing (fingerprint detectable). On real Mac hardware, disable GPU spoofing entirely - genuine beats fake.

LLM costs at scale

Running AI on every fetch gets expensive. We cut costs 90%:

Strip nav/sidebars/footers before AI call (~60% token reduction). Model tiering: Llama 3.1 8B via Groq for extraction, Gemini Flash Lite for summaries, Claude only when quality matters.

Gemini cache trick: 1024+ token system prompts get 90% discount on repeat calls. Verbose prompts are actually cheaper.

Diffing beyond git diff

Git diff isn't enough. We add MD5 hashes to list items for move detection, use Levenshtein distance to distinguish edits from replacements, and clean temporal noise ("2 days ago") that creates false positives.

STACK

Rails + Postgres, Faktory workers, Node.js browser pool, Claude/Gemini/Llama via OpenRouter, Proxies from GridPanel and SquidProxies.

Happy to answer questions about the scraping, AI, or 10 years of lessons in this space.
by Lio | 2026-01-29 14:00:54+00:00
Car manufacturers care about the perception of their products.

If that was true that this was just caused by long service intervals you would expect manufactures to add pad wear sensors to the cars to protect their repuations. Just like they do with oil level sensors.

You'd expect to see other electric car brands effected by the same issue as Tesla, but you don't.

You'd also expect to see reliability ranks changed by regulatory inspection intervals in different countries, but again you don't.

Tesla current range of cars just ain't right good when it comes to reliability.
by thyristan | 2026-01-29 14:00:56+00:00
TÜV is the largest such organisation in Germany and almost has a monopoly. The inspections themselves are colloquially even called "TÜV", even if you do it at some other org.

However, as others have written, there is still some huge bias in those numbers. Especially German brand car shops provide an inspection service, where they pre-check and repair the car before the official inspection. Many of those German brands are also very big on company leasing, to the point where almost nobody buys a new BMW, Mercedes or Audi privately, they either get a new one as a company car via company leasing, or they get a used leasing return car. All those leasing cars always have the aforementioned inspection service as part of the leasing package. So those numbers are to be taken with a huge huge grain of salt.
by keepamovin | 2026-01-29 14:01:23+00:00
You got me on the ZIP/LZW mix-up -- that was a mistake in the readme drafting. I’ll fix that.

Regarding 'Me or Claude': The core concept (applying bioinformatics edit-distance/alignment to compression rather than just exact prefix matching) is something I worked on back in 2013. The implementation in this repo was heavily assisted by Claude, yes.

You're right that DEFLATE and modern algos (Zstd, Brotli) are the production standard. This project isn't trying to replace Zstd tomorrow; it's a research prototype testing the hypothesis that fuzzy matching + edit scripts can squeeze out entropy that exact-match dictionaries miss. The 8-10x slowdown means it's definitely experimental, but as a starting point for further exploration? That's what I want.
by silvestrov | 2026-01-29 14:01:28+00:00
You could make the argument that Patreon isn't much more than a banking app.

It just focuses on the receiver of the money than the sender.

I think Apple is slowly killing apps with this policy. Everybody will slowly move to "web only" as 30% would kill their ability to compete with anybody else. This will likely be much stronger in countries where iPhones do not have the same market share as in the US.
by stetrain | 2026-01-29 14:02:04+00:00
I don't think the continuance of new updates of the same model name matters much for long term support of existing vehicles.

Parts are changed and updated all the time. If you have a 2016 Honda Accord you can't use most of the parts from a 2026 Honda Accord to repair it, you are counting on Honda and others to maintain an inventory of 2016-compatible parts and to provide support for repairs.

The same should apply here. Tesla should be held responsible for supporting their existing vehicles whether or not they continue to make new ones under that model name.
by ncasenmare | 2026-01-29 14:02:10+00:00
Hi, author of the blog post here! Yes thank you for catching this awful typo, it's fixed now! I did write "4000 or 5000 IU of Vitamin D" everywhere else in the article -- main text, conclusion -- just my luck that the one place I mess up is right at the very start.

(Do not take 5000 mg, that's 200,000,000 IU. You'd have to chug dozens of bottles per day)
by blacklion | 2026-01-29 14:02:22+00:00
Because different tasks requires different trade-offs and Linux has only one set of trade-offs. You cannot do good universal tool. It is like Leatherman, good enough to fix-up your bike on the side of the road, not so for normal workshop.

You say: reinvent the wheel.

I say: use pickup truck for every task, from farming to racing to commuting moving goods across continent. Is it possible? Of course. Is it good idea? I don't think so.

All cars are the same if you squint enough, wheels, engine, some frame, some controls, which are not very different between even F1 car and 18-wheel truck.
by disgruntledphd2 | 2026-01-29 14:02:52+00:00
> Why does this matter? The government spends X dollars each fiscal year, divided by the number (N) of people. Most people aren't paying X/N.

It matters because we don't know if these people are being taxed more proportionately or less. Like, Elon Musk pays more tax than you or I, but he probably pays at a much lower rate.

What you don't want (from an equity and fairness perspective) is for people with more money to pay a lower rate of tax. That will cause problems.

From a total population perspective, given some amount of money S it doesn't really matter who pays it (except for downstream impacts around fairness and elections).

However, your original point was:

> The vast majority of adults and their children will never pay their tax burden proportionately.

I would argue that this is incorrect, everyone pays some proportion of their income in income/sales/property/estate taxes. And really, your point about who pays the majority of US federal taxes doesn't actually support your point.

Finally, I would note that I mostly replied because I really hate those top x% comparisons as they're deceptive without looking at the proportion of income earned.
by dangus | 2026-01-29 14:02:56+00:00
I’m sorry but the idea that anyone near middle class would make the decision to drop their entire retirement savings on a single high-volatility business in a new product sector like e-commerce is insane.

The average retirement savings at that age is around $500,000 according to Edward Jones. That’s average, not median, which means that a ton of people have a lot less money saved up than that by that age.

The Bezos family had $500k adjusted for inflation in money they could risk and lose 100% on. That money was also in an account the presumably was liquid enough to spend (I.e., I can’t spend my 401k money before retirement age without enduring a massive penalty and tax burden).

I must reiterate that no parent would liquidate their entire 401k for a business investment. Middle class people are not starting McDonald’s franchises. At best they are starting a Subway or a Dunkin with borrowed money, and usually the families that do that are putting the whole extended family in on that investment.

Finally, I will address the way in which you our bootlicking our hyper-capitalist system: you praise the virtues of a system that allows people like Jeff Bezos to make it big while downplaying the wild inequalities in that system caused by under-taxation of people like him.

10% of Americans, over 20 million people, have no health insurance. Why is that okay?
by trilogic | 2026-01-29 14:03:11+00:00
Testing it now in HugstonOne. Running smooth at 5.8 T/S : Loaded Trinity-Large-Preview-UD-Q4_K_XL-00001-of-00005.gguf.

The T/S speed is acceptable, also stable 60 degrees celcius for the gpu temperature.
Accuracy and precision in math problems. So far so good.
Results: https://www.reddit.com/r/Hugston/comments/1qq9d5i/testing_tr...
by londons_explore | 2026-01-29 14:03:18+00:00
This is the first year that I personally think that it will come this year...

Actions speak louder than words, and the fact that a 'cybercab' production line is firing up this year is also a strong indicator - the fact they didn't do that 5 years ago means tesla leadership didn't think it was going to work back then. 'cybercab' wouldn't sell well as a 2 seater if it couldn't self drive. (although the actual mass production will be delayed till next year is my guess, but we'll see model 3 or y being used for a taxi service in the meantime)