MurphyA/hacker-news huggingface dataset:
by SmithRenaldo | 2026-02-24 00:07:41+00:00
The $5/hr B200 rate is fine for training, but cloud latency usually breaks real-time signal processing. I’ve been hitting similar walls with MemeRadar; when you're processing high-volume spikes, the bottleneck is memory bandwidth, not raw TFLOPS. Quantizing to fit L3 cache is an option, but you lose the precision needed for spotting subtle rug-pull patterns. For 24/7 production workloads, local hardware TCO usually beats cloud rentals.
by verdverm | 2026-02-24 00:08:34+00:00
Some of it is definitely "clawd" spam, there was a good post recently called "No Skill. No Talent." (ns;nt)

You can see it more in /new and /show than comments, some of them also comment to look "real" and not all of it is directly "clawd", but new accounts with human operators that heavily use things like "clawd"
by cg5280 | 2026-02-24 00:08:48+00:00
I actually touched on this in another comment below yours, using Asia as a specific example. Our crime rates are also much higher than those countries.

But while our surveillance is not as widespread as other developed nations, it is still quite commonplace. There are cameras everywhere and recording license plates seems like such a tiny and justifiable expansion.

People in the US also get angry at speed cameras or red light cameras, yet I personally think both are very rational things to want in busy areas!
by kakapo5672 | 2026-02-24 00:08:50+00:00
This is actually an old syndrome with technology. It takes a longt ime for the effect to be reliably measured. Famously, it took many years for the internet itself to show up in significant productivity gains (if the internet is actually useful why don't the numbers show that? - a common comment in the 1990s and 2000s). So it seems to me we're just the usual dynamic here. Productivity in trillion-dollar economies do not turn on a dime
by unstyledcontent | 2026-02-24 00:08:52+00:00
All of the data, including the AI endpoints (Phrase API - https://www.xweather.com/phrases-api), and mapping tools were built using our weather API and MapsGL SDKs. I don't know the exact number of hours but its been worked on for about a year. You could spin up a really basic mapping site like this using the SDKs in a matter of hours.
Show HN: Aru AI local-first AI assistant with semantic memory in browser SQLite
by AruLab | 2026-02-24 00:09:11+00:00
Hi HN,

For the past year, I’ve been building a personal AI assistant from scratch. I was frustrated by two things: cloud-based LLMs using my conversations for training, and the lack of persistent, cross-chat memory in most UIs.

I wrote Aru Ai entirely in Vanilla JS as a PWA. There is no backend, no telemetry, and no data collection. Everything lives in your browser.

Here is how it works under the hood:

Local Storage: All chats, settings, and vector embeddings are stored locally in a SQLite database on your device.
Bring Your Own Model: It connects directly to Gemini, OpenRouter, or local models via Ollama/LM Studio.
Semantic Memory Module: It extracts facts about you (e.g., allergies, preferences) and dynamically injects them into the context window only when relevant.
Canvas & Artifacts: Built-in support to generate code, charts (Chart.js), documents, and mini-games in a dedicated canvas. You can save these to a local library.
Heuristic Module: A small math-based logic system that adjusts the AI's "mood" (sarcasm, humor, tone) based on how you interact with it.
It also features different modes (Child/Teen/Adult) protected by a database password to restrict output and prevent API changes.

It’s completely free. The code isn't open-source yet as I am planning a major refactoring, but I wanted to share the functional PWA with the community to get some feedback on the architecture and the local-first approach.

Link: https://chat.aru-lab.space/

I'd be happy to answer any questions about running SQLite in the browser, semantic extraction, or building complex PWAs without frameworks.
Ask HN: What Linux Would Be a Good Transition from Windows 11
by Cyberis | 2026-02-24 00:11:20+00:00
I have users who glaze over the minute I mention "notepad." I think they can barely use Windows. But our work requires a level of privacy (regulatory and otherwise) and Windows 11 is just one big data transmitter. I know this is flamebait, but I'd love suggestions for a Linux desktop that looks like Windows, is stable and easy to administer and harden, and works with Dell business grade laptops that we bought new in 2025.
by observationist | 2026-02-24 00:11:21+00:00
Safety and Alignment is just the same old trust & safety people from social media platforms, they somehow managed to convince the people with money of their relevance. I'll never understand that move - the slightest pause for consideration of necessary personnel by those in charge should have nixed any such hiring, but they're spending billions in stock and salary on these folks. Good for them, I guess.
by itishappy | 2026-02-24 00:11:26+00:00
100%. EUV barely works. XRay litho takes all the issues with EUV and cranks them up to 11. It will take comparable effort to EUV, if not more, to get XRay litho up and running, and I'm not aware of anyone approaching this to anywhere near the level of investment that ASML (and others) have pumped into developing EUV tech. We may get there eventually as a species, but we're a ways off.
by ndriscoll | 2026-02-24 00:11:26+00:00
To me it seems similar to the + C on an antiderivative (or more generally, quotient objects). Technically, you are dealing with an equivalence class of functions, so a set. But it's usually counterproductive to think of it that way (and when you study this stuff properly, one of the first things you do is prove that you (usually) don't need to, and can instead use an arbitrary representative as a stand-in for the set), so you write F(x)+C.
by sinzin91 | 2026-02-24 00:11:48+00:00
I have this in my CLAUDE.md:

## Session Memory & Recall
- When asked to remember, recall, or look up something from past sessions, use the `/search-sessions` skill
- Start with index search; if no results, suggest `--deep` for full message content search
- Use `--project` filter when the context is clearly tied to a specific project
by guptadeepak | 2026-02-24 00:11:53+00:00
Interesting project. IIRC, one of the biggest challenges with the TI-99/4A was its TMS9900 processor. It was a 16-bit CPU, but had a really awkward memory architecture that made it difficult to write efficient code.

The lack of dedicated registers meant a lot of memory access, which slowed things down considerably. This is probably why it never gained the same traction as the 6502-based systems like the Apple II or Atari.

I'm curious to see how this UNIX-like OS addresses those limitations. It's a pretty neat accomplishment if it can provide a usable environment on that hardware.
by wonger_ | 2026-02-24 00:12:03+00:00
I am in the target audience of "would like to see network activity and debug occasional traffic but totally overwhelmed by termshark." So I appreciate the "what should I click?" thing, and offering weird flows to investigate.

---

Some UX bits I noticed after playing around for a few minutes:

- Esc for backwards navigation was not obvious for me. Maybe emphasize that somehow, and/or support Backspace too for backnav?

- Enter on Domains menu item does not work

- don't mention clicking if mouse is not supported. "Select" would be more appropriate

- packets screen is truncated vertically and horizontally. Probably should be scrollable

- "weird stuff" options are numbered 1-5, but pressing those keys has no effect. There's lots of little polish fixes like this.

---

And then things I wonder about as a novice user:

- Is it possible to see domain names instead of IP addresses while e.g. looking at packets?

- What does it mean to f stream?

- How do I inspect packets? Especially compressed or encrypted data? This is more a knowledge gap, like "what am I supposed to look for", "what could be in a packet", and I guess involves reverse engineering sometimes, but it's also a tooling question.
by antidamage | 2026-02-24 00:12:19+00:00
Different people engage in different ways. I think OP is telling us what got them over that initial habit adoption hurdle. Sometimes spending money on something makes you use it.

My example case is I paid for a year of gym membership up front so I could feel the total I'd spent more tangibly. That got me to go regularly, even if I was just showing up to recovery stretching at first. Now I enjoy going and I look forward to it, and I didn't need a PT to motivate me this time.
by jjirsa | 2026-02-24 00:12:23+00:00
> Waymo is now completing 450,000 weekly driverless rides across six cities, with a peer-reviewed study showing statistically significantly lower crash rates than human drivers across 56.7 million rider-only miles. When Waymo’s vehicles were caught passing school buses, the company filed a voluntary recall within weeks. Tesla, on the other hand, is now on its second deadline extension just to tell NHTSA about FSD’s traffic violations.

That, in itself, is saying more than anything else
by ahhhhnoooo | 2026-02-24 00:12:38+00:00
There's no one who should find this funny. Fucking with charting systems in hospitals will kill people or cause them harm.

The use of kirk's name is especially strange, because it seems both utterly stupid and poised to instigate maximum arguments. "No, it was a lefty person! No it was a right winger!"

Are we at the point where 12 year olds are hacking hospital systems to score internet points, totally oblivious of the consequences? Cause that's that sort of nihilist edgelord garbage attitude seems like what this is...
by guptadeepak | 2026-02-24 00:13:08+00:00
Age verification is a tough problem.

I ran into this when building a kids' education app a few years ago. We explored a bunch of options, from asking for the last four digits of their parents' SSN (which felt icky, even though it's just a partial number) to knowledge-based authentication (like security questions, but for parents).

Ultimately, we went with a COPPA-compliant verification service, but it added friction to the signup process.

It's a trade-off between security and user experience, and there's no perfect solution, unfortunately.
by rustystump | 2026-02-24 00:13:08+00:00
There are more practical difficulties than just cost. If you have lidar it must be calibrated relative to all other sensors. Bumps in the road, weather, thermals, this all causes drift which is non trivial. Waymos are constantly brought in and recalibrated. The advantage of camera only is you have less moving parts which is not insignificant.

But cost isnt the issue as much.
by josephg | 2026-02-24 00:14:06+00:00
Code is here: https://github.com/josephg/claude-mail

The JMAP client itself is hosted here: https://seph.au/claude-webmail/

I can't prove this but its a purely static web app. You need a jmap server to use it. If you use stalwart, set:

server.listener.http.permissive-cors = true

or

server.listener.https.permissive-cors = true

Then you should be able to put https://localhost:8080/ into the URL box. It should also work with fastmail, but I haven't tested it.
by kakapo5672 | 2026-02-24 00:15:22+00:00
Yep, and the same with the internet. During the 1990s and 2000s, people kept wondering why the internet wasn't showing up in productivity numbers. Many asked if the internet was therefore just a fad or bubble. Same as some now do with AI.

It takes time for technology to show measurable impact in enormous economies. No reason why AI will be any different.
by fyredge | 2026-02-24 00:15:58+00:00
Sorry, I don't quite understand your argument. There will always be people with different ideas. That is what makes us human. My argument is that such ideas and the societies that are organised from them are quite fleeting (as noted by your matriarch example). Genocidal priesthood may have forced people in one region to believe in divinity, but I doubt that with the technology at the time, they would have enabled the expansion of so many other religion - abrahamic religions, Buddhism, Hinduism, Sikh etc etc.

Again, I did not come up with currency and it does not matter if I personally believed in it. Enough people did and now we have capitalism. The people organised themselves, and if it is not what they wanted, history has a recording of many many revolutions and uprisings.
by ekjhgkejhgk | 2026-02-24 00:16:23+00:00
> a method of automation that is akin to robo vaccums randomly tracking dogshit across the carpet.

Is it possible that this sort of problem will be fixed? Hypothetically, what would happen in a scenario where one of these apps can do in 1 hr the work that would take a developer a month, reliably? Or is your premise that will NEVER happen?
by Astrian | 2026-02-24 00:17:19+00:00
I have to complain about some side effects of shutting down the 3G network. Similar to New Zealand, Australia is also shutting down the 3G network. It is quite reasonable since most people have upgraded to a newer phone on paper.

However, it also means that a quite range of phones will not support emergency calling via VoLTE, since it not only requires a 4G/5G capability, but also requires a separate protocol needed to make the emergency calling available without a SIM card, I suppose?

So, the final result is, the telecommunications department of Australia forces customers to switch phones, and I just don’t want to switch. I am currently using two phones, one is an iPhone which is fine, another one is a Xiaomi phone purchased from China, which will be banned and I am very satisfied with it.

The final result is, I purchased a budget 5G phone as a hotspot device and use it with my Xiaomi phone. With that said, I still feel frustrated. I contacted two carriers and both of them said “oh we can do nothing”, although the shutdown notice email said “we will find you a solution”. According to my friend, it is “we kindly ask patients to avoid passing away in the hallways.”
by yvyn | 2026-02-24 00:17:31+00:00
Hi, I’m the non-technical cofounder. My partner is the full stack developer with the pedigree and the experience. We’re building developer tools, it’s not my expertise, but it fit my vision of making technology work for people. Other people mention you need to be able to do something, and that isn’t limited to bringing in sales or investor connections. The hard part is validating the idea - does it have value to enough someones, are they willing to pay for it, and how do you get them to open their wallets? Building a GTM strategy that works, one you can make iterations on and improve over time to shorten your road to revenue requires a lot of work many technical people hate doing - interviewing customers and asking them questions that are sometimes deeply personal like what does this product do for you that nothing else can? And then being able to tie that back to product releases, communicating it to your customers so they will stay to grow with you and hopefully bring in others. These are product fundamentals, boring stuff nobody talks about anymore because it’s not a magic pill. It’s a shitload of work and rejection every day. sorry a little bit of a rant
by unstyledcontent | 2026-02-24 00:17:54+00:00
It's a fair question. There's a lot of free sources of data out there. This app is powered by our own Weather API: https://www.xweather.com/weather-api

The data is aggregated from global meteorological offices and other sources (some free, some paid). Some of the datasets are proprietary to us. For example, the lightning layers come from our own lightning detection network, and certain forecasts (like hail) are developed in-house.

This app was built to showcase our data. The vector mapping tools are also available via API. https://www.xweather.com/mapsgl
by rubicon33 | 2026-02-24 00:17:57+00:00
It all depends on how deep you want to go.

Building wrapper apps on top of LLM APIs takes barely more knowledge and training than normal frontend and backend dev works.

If you want to develop your own models, that’s probably the next layer where you need to learn about training, etc.

Even deeper is Ai research… once upon a time LLMs were not the bleeding edge… it takes research often times theoretical and steeped in physics and math to develop your own “ai”
by foxes | 2026-02-24 00:18:02+00:00
I feel its not that bad an abuse of notation as kinda consistent with other areas of mathematics -

A coset, quotients r + I, affine subspaces v + W, etc. Not literal sets but comparing some representative with a class label, and the `=, +` is defined not just on the actual objects but on some other structure used to make some comparison too.
by usef- | 2026-02-24 00:19:24+00:00
Not Windows: Operating systems. We did get more capable operating systems. The point of the quote is "this is the worst the SOTA will ever be".

If Windows XP were fully supported today I still wouldn't use it, personally, despite having respect for it in its era. The core technology of how, eg OS sandboxing, security, memory, driver etc stacks are implemented have vastly improved in newer OSes.
ChatGPT finds an error in Terence Tao's math research
by codexon | 2026-02-24 00:19:47+00:00
https://www.erdosproblems.com/forum/thread/783

> Ah, GPT is right, there is a fatal sign error in the way I tried to handle small primes. There were no obvious fixes, so I ended up going back to Hildebrand's paper to see how he handled small primes, and it turned out that he could do it using a neat inequality ρ(u1)ρ(u2)≥ρ(u1u2) for the Dickman function (a consequence of the log-concavity of this function). Using this, and implementing the previous simplifications, I now have a repaired argument.
TerenceTao
by j45 | 2026-02-24 00:19:56+00:00
I thought the same thing until someone asked me how many of them have been able to overcome digital addiction and set a path ahead that's healthy.

Being literate in something isn't just knowing how to use it, but how to manage it's use for one's self and for others.

Once you see the importance of it, knowing where/how to start to manage what kids are exposed to that is age or developmentally appropriate for them is entirely a different skill to meet and manage the digtial literacy of another human, especially a child.
by preommr | 2026-02-24 00:20:13+00:00
I am not saying this to be sarcastic - the problem is that people from OpenAI/Antrhopic are saying things like superintelligence in 3 years, or boris saying coding is solved and that 100% of his code is written by AI.

It's not good enough to just say oreo ceos say we need to more oreos.

There's a real grey area where these tools are useful in some capacity, and in that confusion we're spending billions. Too may people are saying too conflicting things and chaos is never good for clear long-term growth.

Either that 20 years is completelly inapplicable to AI, or we're in for a world of hurt. There's no in between given the kinds of bets that have been made.
by recursive | 2026-02-24 00:20:25+00:00
Also no particular reason to group it in with those two. There are plenty of things that never showed up at all. It's just not a signal It's kind of like "My kid is failing math, but he's just bored. Einstein failed a lot too you know". Regardless of whether Einstein actually failed anything, there are a lot more non-Einsteins that have failed.
by dsr_ | 2026-02-24 00:20:39+00:00
LLMs are fair to compare to cocaine because while there certainly could be ethical producers who follow reasonable laws and work to develop good uses, the market is completely dominated by organizations that don't.

And in my experience potheads offer you a toke and if you politely refuse, no problem at all. Coke addicts don't want to take no for an answer and insist that everybody should do it, they get so much more done, decisions are faster and better and what the hell is wrong with you if you don't want some?

So, the users are similar too.
by stubish | 2026-02-24 00:21:17+00:00
Starts off with a flawed assumption, playing into the hands of people who want surveillance.

"The only way to prove that someone is old enough to use a site is to collect personal data about who they are. And the only way to prove that you checked is to keep the data indefinitely."

If you start by legislating that you can't collect personal data or ID, then you are forced to do your age verification through other means. And legislate the government can't see what websites a user is visiting if you can to stop overreach. End result is a workable solution, zero knowledge proof or similar where government (the source of your ID documents) signs a token brokered by a proxy.

But when you start arguments from the position of 'no way to do this without violating privacy', the end result will be to violate privacy, because it seems an awful lot of people are demanding age verification and will sacrifice if they believe it is necessary.
by Bender | 2026-02-24 00:21:56+00:00
Instead of a specific technical answer to your question one thing I would consider if regulatory bodies are involved would be to look for existing hardening documents, scripts, tools from your auditors and see if there is a common pattern for OS choices that easily check all the boxes. Ask your auditors which OS makes audits easier for them and which of the hardening tools cause the least grief, require the least exceptions before looking at technical options. Just a suggestion from someone that may as well have moved in with the auditors for spending so much time with them.

After narrowing it down to 3 choices then present those choices to:

- Your legal team to review licenses before you put much effort into setting up automation frameworks, support tools, installation automation. They can be a buzzkill and I think some may secretly enjoy it.

- The people using that which you plan to administer. Let them play around with each option and get their feedback to maybe have happier group(s) of people to support. Test group 1, test group 2, test group 3. Let them compare and contrast.
by defrost | 2026-02-24 00:22:05+00:00
Australia's been working with various types of robotics in agriculture since 1980 at least, these days, for open field work there are several families of solution in developmental progress.

One leading contender is SwarmFarm Robotics, based out of Queensland.

* https://advance.qld.gov.au/innovation-in-queensland/innovati...

* https://www.swarmfarm.com/

For interest, here's a recent opinion / demonstration from an unassociated Australian farmer considering a purchase.

The farm is Tom’s Brook, a grain farm located in Esperance in Western Australia. It’s a family operated business growing a mixture of Wheat, Barley and Canola on 4500 hectares (11 200 Acres). Sizewise is pretty much bang on the average W.Australian grain acerage.

Seeing a Swarm Bot in Action (20 min) - https://www.youtube.com/watch?v=ljEKN7CsjnM

The unit pair in action here, autonomous tractor pulling intelligent boom spray, has had 10,000 acres of operation prior to this customer demonstration.

Unloaded weight ~ 3.5 metric tonne, loaded approx 5 tonne.

Runs at about 13 hectares per hour, max speed 10 km/hour.

Advantages of "intelligence" during operation are reduced spray usage (basic green on dirt detection, and green shape on mixed green patterns) and weather patience (happy to sit idle until wind and humidity are optimal)

70 odd Comments include feedback from other farmers already using such agribots, eg:

Just rolled over 12,000 hrs on our swarmbot. 4 years, 3000hr a year, doesn't get into the shed much.

The first 12 minutes are Vendor + Farmer discussin bot in action, remaining eight minutes is farmer and hands discussing pros and cons.
by yunwal | 2026-02-24 00:22:14+00:00
> the morels that seemed to come with a load of wood chips were great for the year or two we had them.

You probably already know this, but for anyone reading, there’s a species of mushrooms that looks kind of like morels that is poisonous, potentially fatally so.

https://www.foraged.com/blog/morel-mushrooms-vs-false-morels