MurphyA/hacker-news huggingface dataset:
by OhMeadhbh | 2025-09-29 22:58:28+00:00
Ack. I got one of these things and they are HORRIBLE.

1. It would be very nice if there was anything in the box with a pointer to setup instructions (since it's obvious setting up the 500+ is different than setting up previous models.) A QR code, a URL, a printed manual. Anything. But I can use DuckDuckGo and found a couple of third-party sites and a few YouTube videos. I tried piecing together the process. It would be great if the Raspberry Pi team would make a simple web page that tells you things like:

a. Where do I download the image for the Pi 500+ (since the stock 2025-05-13 image doesn't work for the 500+.)

b. I only have one monitor, which HDMI port to I use?

c. Every other machine I've had, you can plug a mouse into the USB 3 port. I mean, you probably want to save that port for a peripheral that can use the extra speed, but it should work. Is this true for the 500+? Will I destroy the machine if I plug the mouse into the blue USB ports? I'm embarrassed I have to ask this since any other machine I wouldn't worry about it, but the out-of-the-box experience is so bad, I've lost faith in the Pi organization to make anything that works, much less performs well.

2. I needed a display so I figured I would buy a Pi branded monitor. At least this thing came with an insert that told me it wouldn't work without an external power supply. Could you have put that on the web site so I would have known to purchase an extra power supply? No problem, I have several around the house.

But... what does it mean when I plug everything together and the monitor power LED blinks red, then turns of and then nothing happens. I verified the monitor works by plugging it into a different machine, but shouldn't it work with the RasPi 500+??? I'm missing something here and it's not in the documentation.

3. I finally got the 500+ turned on and generating a picture. It stops on the "booting from SD card," the display flashes and then it says "waiting for network. connect ethernet cable." I have to connect via an ethernet cable to configure it? You mean the OS image on the SD card doesn't know how to configure the device?

This thing is NOT READY FOR PRIME TIME. I'm going to see if I can return this one cause after several hours of fiddling, I can't get the Pi to drive the Pi monitor (but the Pi will drive an Asus monitor I have in the lab and my "regular form factor" Pi 5 can drive the monitor. There's something screwy going on here and there's no documentation describing how to setup the 500+.)

Save your money. Wait several months for them to get the kinks out.
Show HN: Kerns – An AI space to understand anything
by kanodiaayush | 2025-09-29 22:58:30+00:00
Since LLMs came out, I’ve been amazed at how much faster I can learn. But I wanted one place to truly understand a topic across multiple sources (docs, books, web).

I’m building Kerns to solve this. Spaces are interactive collections that let you:

1. Explore a map from summary to high-detail

2. Switch modalities (text → podcast)

3. Chat with an agent that searches both web + documents

Share and explore community-curated spaces

Examples: Paul Graham’s essays on writing, a comparison of open models, or current news like U.S. visa changes and AI copyright lawsuits.You can create your own space starting from a query and/or sources (pdfs/epubs/htmls).

I'm experimenting with this as a new format for learning and sense-making with AI. Curious if this feels useful to you, please give me feedback.
by Aachen | 2025-09-29 22:59:53+00:00
I expected one person to step up, do the verification, and F-Droid can use that signing key to distribute apps to phones with facism mode enabled. They just need to pick an app ID that isn't already in use, could even be sequential under org.fdroid.*

It's quite scary that there's no such idea being floated in the post. Apparently they're ready for F-Droid to be relegated to the realms of Google-free devices that nobody, outside of a few hardcore privacy activists, is currently willing to use. Maybe that'll change, but I doubt significantly enough for governments to reconsider which OSes and third-party stores they need to support
by theamk | 2025-09-29 22:59:54+00:00
I don't think it is possible to have "good implementation" of cable impedance sensing, given the inherent properties of the connectors. Wetting current is a thing, after all, and it can be quite big for work connectors.

Cable-reported capacity does not really change over cable lifetime - the currents used to sense resistance are miniscule, and would not be affected by cable being worn. For example, extra 0.5 ohm of cable resistance completely ruins the current sensing, but make absolutely no difference when measuring 5K or 1K resistance.

And if manufacturer is lying, that's annoying but it's 100% deterministic - you know the cable is bad, you can throw it away. With impedance sensing, the same cable can be good or bad, depending on the mood, and that's why it should not be used ever.
Show HN: StagePOS – Free cloud POS with no hardware lock-in
by kyunghoon5 | 2025-09-29 23:00:03+00:00
Hi HN,

I built StagePOS, a cloud POS system that's completely free with no monthly fees.

The Problem: Small businesses pay $50-200/month for basic POS functionality, often locked into expensive proprietary hardware.

The Solution: - 100% free software - Works with any ESC/POS thermal printer - Stripe Terminal integration at standard rates (2.7% + $0.05) + platform fee ($0.05) = total(2.7% +$0.10) - Cash payments = zero fees - Cloud-based with real-time sync - Built with React + Node.js Features: - Multi-business types (Restaurant, Bar, Karaoke, Retail) - Remote order support - Real-time sales reports (X/Z reports) - Google OAuth authentication - Multi-tenant architecture Available as: - Web: https://stagepos.com - Desktop: https://github.com/kyunghoon5/stagepos-desktop The desktop version is Windows-only for now (Electron), but the web version works on any device. Why free? I wanted to build something actually useful for small businesses without extracting rent. Happy to answer technical questions! Tech stack: Electron, React, Node.js, mssql, Stripe Terminal SDK
by snvzz | 2025-09-29 23:00:35+00:00
Yes, it supports seL4 among a range of kernels.

Note the binaries are not specific to the kernel, so anything built for Genode will work on Genode systems of compatible ISA irrespective of kernel.

I am surprised to hear 2008, I could swear they have been active far longer. Maybe I am conflating it with TUD:OS.

They are indeed quite active. Just see their backlog of release notes. They release 4 times a year, on the clock, and always document what they've done.
by swasheck | 2025-09-29 23:00:47+00:00
i've been incrementally hiking the via francigena (https://www.viefrancigene.org/en/walking/) and am working through integrating my gpx, geotagged photos, and oura ring data to both illustrate my journey and analyze how different terrains and altitudes affected the collected biometrics.

ingesting/parsing gpx layers into duckdb using python to extract tags and load api data. using minio right now but ultimately want to push to cloudflare free tools or vercel.
by lupusreal | 2025-09-29 23:01:42+00:00
Good post. It's not even about the rights of the LLM or the corporation, but of the people who will be using these tools.

Imagine if the government went to megaphone manufacturers and demanded that the megaphones never amplify words the government doesn't like. "Megaphones don't have rights so this isn't a problem", the smooth brained internet commenters smugly explain, while the citizens who want to use megaphones find their speech through the tool limited by the governments arbitrary and ever changing decrees.

As for the government having a right to regulate tools, would a regulation that modern printing presses recognize and refuse to print offensive content really fly with you defending this? The foremost contemporary tool for amplifying speech, the press is named right in the first ammendment. "Regulating tools" in a way that happens to restrict the way citizens can use that tool for their own speech is bullshit. This is flagrantly unconstitutional.
by flyinglizard | 2025-09-29 23:01:44+00:00
Still loyal to aider. It just fits my style better, as a very fine tool. I have my workflow and scripts around it, switch freely between gpt-5/sonnet (a bit of gemini-2.5-pro too) and enjoying life.

I wish it was maintained by a larger team though. It has a single maintainer and they seem to be backlogged or working on other stuff. If there was an aider fork that ran forward with capabilities I'd happily switch.

That said, I haven't tried Claude Code firsthand, only saw friends using it. I'm not comfortable letting agents loose on my production codebase.
by xscott | 2025-09-29 23:01:59+00:00
If you look at the LLMs as a new kind of fuzzy search engine instead of focusing on the fact that they're pretty good at producing human text, you can see it's not about whether the LLMs have a right to "speak", it's whether you have a right to see uncensored results.

Imagine going to the library and the card catalog had been purged of any references to books that weren't government approved.
by johnnyanmac | 2025-09-29 23:02:10+00:00
I don't think the law is the issue here. Stuff like #metoo shows how devasating effects can be even if you eventually sue and win. And the audience sentiment never really changes because they never come back to the story.

Mix that with the lack of general shame for this stuff and you have this weird state of affairs where you don't want to do anything slightly risky. Nothing silly, nothing that can cause you to be looked over on job apps, nothing that you enjoy by yourself but others find "weird".
by b_e_n_t_o_n | 2025-09-29 23:02:31+00:00
Yes there are more mature choices now, but Apple is serious about making Swift a c++ replacement and if they do that well, it actually has a chance of being a One Language To Rule Them All. Rust is too low level for people to use for Applications, servers etc, which is where Swift shines, and Apple is proving that Swift is viable as a systems language too.
by ynabil | 2025-09-29 23:03:01+00:00
I'm currently building Visirya, an app that helps people record their night dreams and transforms them into short videos and written journals. The bigger goal is to use this dream data to create dream cartographies, essentially maps of recurring themes, emotions, and symbols—to uncover patterns and insights across dreams over time.

So far, we've built the video generation and dream journaling features. The app is live on TestFlight, and we're preparing a major update soon that includes a new better UI, and dream questionnaire to help with pattern recognition and dream mapping.

Would love to hear thoughts, feedback, or connect with others working on similar intersections of tech and the mind! If you're interested in trying it out, you can find the TestFlight link on our website: https://visirya.com
by orwin | 2025-09-29 23:03:15+00:00
So, interestingly, the same happened during the dot-com bubble, with less money though, but it kept the bubble afloat for around 6 months for a year (don't make any predictions about now, the amounts aren't the same, neither is global GDP percentage, and borrowing rate can fall to 0).

Cisco and other infrastructure companies 'invested' in dot-com companies, who paid datacenter companies who paid Cisco and infrastructure companies.

When you see Nvidia investing 100 billions into OpenAi who promised to Oracle at least 150 billions of investments (which means oracle RTO on 10 year is like 400 billion now, around 4x what it was before Nvidia investment), and Oracle will buy its chips, which are the cost driver for AI datacenter, from Nvidia.

Which is probably the most circular economy-like capitalism can do, in a way, as a leftist I should be happy.
by Analemma_ | 2025-09-29 23:03:26+00:00
I don't think this is true. I heard the exact same claim about Alexa making it easier to order diapers or whatever with one voice command: "sure, HN users don't want this, but normal people do". But I know many non-tech people who have Amazon Echo devices, and they never, ever use them to buy things. For them it's a timer-setting device only. That's why Amazon wrote off that entire division as a billion-dollar loss.

I think "people want frictionless ways to purchase products" is a PM pipe dream more than a description of reality.
by jbentley1 | 2025-09-29 23:03:46+00:00
A new type of development environment for working with agents

https://github.com/stravu/crystal

It supports Claude Code and Codex, but has you constantly working on multiple features in Git worktrees. This way you are always able to stay busy while waiting on your agents.

It has built in tools for review, such as a diff viewer, and a quick button to run your application in different worktrees for testing. It has completely transformed the way I work.
by sim04ful | 2025-09-29 23:04:01+00:00
I’ve been working on https://fontofweb.com, a search engine for real-world web design.

Most design inspiration sites lean heavily on curated mockups (Dribbble) or award-winning showcases (Awwwards, Mobbin). That makes them polished, but they don’t reflect what most production sites actually look like. Font of Web takes a different approach: it sources directly from live websites, and the community can clip specific elements instead of entire pages. That means you can browse navbars, pricing cards, dashboards, etc., not just full screenshots.

Each clip is enriched with metadata (fonts, color palettes, original domain). Search works across that metadata, natural language queries (“minimalist fintech dashboard”), and even visual similarity — so you can find results either by text or by image.

There’s also a Chrome extension to snip and save from any site.

I’d like to hear from designers and frontend engineers: is this useful in your workflow? Anything obviously missing?
by cies | 2025-09-29 23:04:23+00:00
Amen to all your points.

All senior devs know what a project looks like that had only juniors and no tech leadership. One big mess. Project stalls. Team spends 98% on bugs and emergencies, and still cant get a grip on curbing the drama. Why? All the point you say for AI are true for juniors as well: when to tell someone to redo a (part of) a project/feature? That same intuition works when collabbing with AI.
by anie_cha | 2025-09-29 23:04:53+00:00
Earth Meta Insights

Since a few months back I am working on a side project to give a snapshot of the regional and global species and natural ecosystems.

I use manual (me) and automated tools (web and literature search tools, llms, visualizers ...) to search, extract, organize and visualize ecosystem literature and data.

A regional example of mountain gorilla's of Rwanda: https://www.earthmetainsights.com/emi-cards-gorillas-of-rwan...

A global example of Elephants across the world: https://www.earthmetainsights.com/emi-cards-state-of-elephan...

If there are some species that are you would like to see a snapshot of, and the region/location let me know and i will try to get a similar visualization. DM or as reply to the chat. Share the species name (common or scientific) and location (can be a city, town, region, province, country).

It is a work 8n progress, but I would be very happy to recieve feedback.
by renhanxue | 2025-09-29 23:05:03+00:00
The core issue the article is pointing to is that most database indexes are B-trees, so if you have a predicate on the form (col_a = 'foo' OR col_b = 'foo'), then it is impossible to use a single B-tree lookup to find all rows that match the predicate. You'd have to do two lookups and then merge the sets. Some query optimizers can do that, or at least things that are similar in spirit (e.g. Postgres bitmap index scan), but it's much more expensive than a regular index lookup.
by bsder | 2025-09-29 23:07:16+00:00
> You've answered it yourself? 'imported from France'.

This is no explanation at all.

This does not explain why expensive bottles of wine imported from France aren't as good as basic bottles from Carrefour (even from before Sir Random-Tariffs-a-Lot). It also doesn't explain why US wine producers aren't producing basic wine as good as basic wine in France (in my opinion).

US wine producers spend VAST amounts of money on the technology and knowledge to make wine. There is no "magic" in wine production knowledge that the US wine producers wouldn't have figured out by now.

At this point the difference is either fundamental (Napa soil matches France but climate does not, for example) or market driven (French wine drinkers expect better wines so market forces cause sub-par wines to get driven out quicker).

Neither of those explanations are very satisfying. You would expect that an ambitious US wine producer would someone solve anything fundamental. And "market forces" implies that somehow wine in France resists "cheapening forces" that affect every other foodstuff.

My personal hypothesis is that the problem is fundamental and is about batch size (I'm extrapolating a bit from the craft brew scene). Large batch sizes are notoriously different in kinematics from small batch sizes in industrial processes. French wine producers are often making wines from, as seen in the US, very small grape plantations in very small batches. US producers tend toward much larger batches as it vastly increases the profitability, and US small batch producers tend not to have deep knowledge about winemaking.
by klipklop | 2025-09-29 23:07:32+00:00
I would suspect that they continue to support those until they hit their agreed upon EOL. At some point they will ship new units that are essentially identical in use (running chrome), but are locked down under the hood (for school use) to be more like chromeOS and less like Android.

There is a good chance the average end user wont even notice the difference. It seems doable, but I guess the devil is in the details. If they can't pull it off, Apple is rumored to be launching a ~$599 macboook. Would not be really stretch to see them complete in this space again in the future.
by gprok | 2025-09-29 23:07:33+00:00
Hey!

Following up on our conversation from a few days ago. You asked about resizing the grid to show more or fewer items, and I'm happy to announce that this feature is now live in the latest version (v1.35)!

While Macscope is open, you can now use

Command + Plus (⌘+) and Command + Minus (⌘-) to dynamically increase or decrease the size of the previews. This allows you to shrink them down to see many more windows at once—which should be a big help for managing the large number of apps you mentioned—or make them larger for a more detailed view.

Thanks again for the excellent feedback; it directly helped shape this update.

Hope you get a chance to try it out!
by iinnPP | 2025-09-29 23:07:45+00:00
For sure, it's meant to go a bit too far I guess. I'll be more real.

This is to allow companies to make entirely fictitious statements that they will state satisfies their interpretation. The lack of fines will suggest compliance. Proving the statement is fiction isn't ever going to happen anyway.

But it's also such low fine, that will eat inflation for those 12 years.
by Macha | 2025-09-29 23:08:21+00:00
> To buttress his argument that Android can work on laptops, Samat pointed to the OS being "super successful" on tablet computers.

In like 2015 before all the OEMs lost interest when it turned out tablets didn't have phone-esque upgrade cycles maybe? Isn't the Android tablet market basically on life support from occasional Samsung refreshes at this stage?
by cogman10 | 2025-09-29 23:08:22+00:00
The reason I bring up the definition is that "AI" is defined so loose as to include dumb lawn mowers.

In my friend's case, he was mowing on a hill, braced to pull the lawnmower back, and jerked it back onto his foot.

Edit: Looked it up, the number of injuries per year for lawn mowers is around 6k [1]

[1] https://www.wpafb.af.mil/News/Article-Display/Article/303776...
by Aurornis | 2025-09-29 23:08:29+00:00
It's not really useful for most repairs. These PCBs are very dense. The traces and even vias are buried below the surface. At best it might give them some hints about where to probe if they've never worked on that phone model before, but in a practical sense they're not going to be doing many repairs based on the schematics.

The repair process for a modern phone involves swapping salvaged parts on to salvaged PCBs.

Most of the parts on the PCB are custom and not available for purchase separately. The passives aren't likely to be points of failure, but even when they are they're usually swapped from some other donor board rather than purchased new.
by cies | 2025-09-29 23:08:58+00:00
LLM (the model) is not the agent (ClaudeCode) that uses LLMs.

LLMs improve slowly, but the agents are where the real value is produced: when should it write tests, when should it try to compile, how to move fwd from a compile error, can it click on your web app to test its own work, etc. etc.
by psunavy03 | 2025-09-29 23:09:13+00:00
We are ultimately all going to die of something. The answer is to make informed risk decisions so as to enjoy life, not wrap yourself up in a bubble and do nothing fun for 100 years. Alcohol increases your dementia risk. Tasty food increases your heart disease risk. Live long enough and you're probably guaranteed to get cancer.

Everything in moderation, including moderation.
by 64718283661 | 2025-09-29 23:09:54+00:00
I used to think so. But now I think it's not very useful with what I've seen from others. Maybe if you do frontend.. The people who I see vibe coding with no experience actually programming... It is completely useless. It can only do the most simple tasks, anything beyond it will constantly make critical errors and random mistakes. That is using what was the latest Claude version before this. I've also not really used AI coding stuff myself at all do take that as you will.

Even for frontend tasks it makes mistakes when you ask too much of it...

What will it create for me? A basic react/nextjs frontend and a <popular website> clone? Anything that requires more careful planning and esoteric functionality it can't do.

Oh yes, and the code I've seen it write... It can take what should be 20 lines of code and turn it into 600!
by thomasdziedzic | 2025-09-29 23:10:10+00:00
> So what comes next?

Since you provided a source for your numbers, I'll bite. Formalize results into mechanical proofs that can be verified by computers so that we build a library of computer proofs. You can't bullshit a computer.

I'm not sure how it would work for statistical results, but defining a formalized standard might be a good first step for deriving numbers from raw data instead of relying on the authors to calculate the statistics themselves.
by Aurornis | 2025-09-29 23:10:12+00:00
> It is always useful to know part numbers

In modern phones the key part numbers for ICs aren't going to correspond to anything you can buy.

At best, you can see the part numbers for the passives and their alternate suppliers. The part numbers for most of the actives aren't going to be useful to anyone outside of the manufacturing chain for these parts. A repair tech would simply source the donor parts from an identical phone model.
by Aachen | 2025-09-29 23:10:31+00:00
I don't need to "buy" a third-party identification service when buying a phone from my favorite vendor. I can use F-Droid, download an APK from Codeberg or Microsoft, or run software that I've made myself

What store fees should we be paying just to be able to run our own software, and friends' software, on our own hardware?

I don't see a hypothetical here. It's how Android has always worked