skysight-inc/HackerNews huggingface dataset:
Show HN: RegionCast – A crowdsourced audio guide for the world
Hi HN! I’ve been making an audio guide app for travelers of all kinds. Primarily it is intended for use on road trips, while biking, and on trains. It’s an audio guide app where users can submit text stories and we (I) will approve and narrate the story. Eventually the review process could be crowdsourced, but for now it is set up where each story is reviewed by me, the backend is set up to make the review and narration process as quick as possible.

I want to collect all kinds of interesting stories and make them available in the app. There are layers of hidden information and history all around us and I want to collect and bring them to life.

Types of posts I want to highlight are: interesting family histories, landmarks, lesser-known natural formations, ghost stories, funny stories, urban legends, lesser-known nature experiences, interesting infrastructure, homes where famous people have lived etc. Honestly anything interesting that might make a good audio story!

I am using AI to try and bootstrap some initial content, and most of it is in Austin, Texas and surrounding cities right now because that’s where I am based.

Here’s an example of a history-themed post: https://www.regioncast.com/cast/b7c26eb7-fb96-4cdb-b485-f7d5...

I would love some feedback, I have never launched anything before on my own and am kind of scared but I’ve been sitting on this for too long and need to just show someone so I can move onto another project if there is no interest.

Please let me know what you think and I am happy to answer questions!
Allow me to offer a brief proof of the contrary.

You may select any real number between zero and infinity. We will call this R.

I will give you 1/R, which is between zero and one.

QED.

I believe you're conflating range, where it is trivially true that [0,∞] is of greater extent than (0,1), with quantity, where it is not the case that there exists a greater quantity of values in the former range than in the latter.
TSMC charged just a hair under $4000 per 16nm wafer in 2020.

Wafer calculators at 0.2 defect/cm2 on a 300mm wafer gives 950 fully-good dies out of 1061 for the old die (~89% good) and 1469 fully-good dies out of 1584 (~93%) for the new dies.

Dividing that out gives $4.21/chip for the old chip and $2.72/chip for the new chip. At $80 for an 8gb board, that represents a ~1.9% increase in profit per board. For the $60 4gb version, it's more like 2.5% increase in profit per board.

In real-world terms, if they sell 10M Pi5 units with the new chip, they'll have an extra $15M in the bank in saved production costs alone (minus whatever costs to strip everything out and tape out again). Furthermore, the new chip gets cheaper with every chip they make as the R&D costs get more and more diluted.
If I’m understanding correctly, you should be able to do that by unchecking “Bg Gradient” in the GUI menu.

Then change the font colors as you wish.
> Having null hostility at the compiler level would be a awesome next feature in java (fingers crossed).

This is being worked on, it seems [1]. I remember it being discussed here not too long ago, but can't find the link right now.

[1] https://openjdk.org/jeps/8303099
This is why I chose to replace my basic forced air gas furnace and basic 16 seer single speed single stage A/C unit with the same thing. Every part on these is relatively simple, largely serviceable and every parts house coming and going will have something that fits. I disagree with others that any of the more fancy stuff is any more reliable (and Dad worked as an HVAC master tech for a long time and also agrees with this) and I can't believe people pay for more complicated stuff when so far as I have ever seen it's 90%+ snake oil and drives the initial price and the cost of repairs up astronomically, and largely cools or heats the house all the same. I am well aware that Bryant, Lennox, Trane, Mitsubishi and everyone else coming and going has got the more complicated garbage that talks something more complicated, I just really don't get why you'd double or more the cost of things when you can get something that just works for less. I also don't understand the obsession with "smart" controls on any residential single family home when a basic programmable thermostat already does basically everything.

I'm sure as everyone piles onto the mini-split hype train, there's going to be even more fleecing of homeowners for maybe middling quality hardware and installs. Someone (either the HVAC company owners or the hardware manufacturers or maybe both) is making an absolute killing on this; maybe it's time for a career change.
Rust:

- Has the memory safety of Java
- But is as fast as C/C++

The thing you have to pay to get that combination, is a LOT more time and frustration fighting the borrow checker, and getting things to compile.

But for a kernel (and a few other cases like network servers, browsers, foreign data decoders), I think that trade-off is perfect.
It's because it's trained on real tesla drivers.....
Always strange how genes survived over time.
The "tunnel ahead" sign always struck me as particularly pointless. Who needs that sign? Surely if you're driving towards a tunnel, the enormous tunnel itself is the indication you need that you're heading towards a tunnel?

Honourable mentions for "humps ahead".
Heroku is turning the 12 factor manifesto into a community project and modernizing it. I posted my thoughts in a blog[1], and I'd love to hear what other people think!

[1] https://medium.com/@vishvananda/the-rebirth-of-twelve-factor...
This is a good one for everything related to SB1047 https://pca.st/episode/44b41e28-5772-41c4-bcd7-5d7aa48d5120
Bunker St. Pauli
A few notes (as someone who is pretty staunchly anti-Pi-as-a-server, I end up having this debate often, and I do think there are reasons to do both):

* A Pi will sit much lower in total power consumption than almost any used PCs if both are doing effectively nothing (ie - simple, spiky tasks like filtering DNS, serving static content from RAM, etc.). You need to be doing something with the system before a PC server comes out ahead, and most people using a Pi as a home server... aren't.

Compared to a modern low-power x86 PC system, the difference isn't meaningful, but if you're buying used stuff 3 generations back, the difference becomes somewhat meaningful in terms of electric cost (on the order of tens of dollars per year, which is significant for hardware which cost tens of dollars to start with).

* The Pi of course has GPIO, SPI, etc. exposed, so you can use it as a nice "hybrid-IoT" device where it's a home server _and_ a sensor aggregator, for example. And the hat ecosystem, while generally insanely overpriced, is convenient.

Now, the moment you're running K8s/Docker or a real compute workload (security camera image recognition, etc.) you should probably move off of the Pi and onto something nicer, indeed. I absolutely never understood people running clusters of Pis or those goofy multi-Pi carrier boards. Just buy a real PC.
I wonder if this is kind of a semi-panic selling because of Windows 10 supposedly going away next October 2025? (Except MS holding us hostage for a yearly fee!)

Fantastic gathering of used PC's, but buyer beware, there are a lot of options that are worth studying before purchasing.
The author made the right move by doing this through FAA and CISA (via DHS), rather than directly via TSA. It's not inconceivable that a direct report to TSA would have resulted in legal threats and bluster.
Starlink's financial assets frozen in Brazil
Since they actually went past the SQL injection and then created a fake record for an employee, I'm shocked that Homeland did not come after and arrest those involved. Homeland would have been top of the list to misinterpret a disclosure and prefer to refer to the disclosure as malicious hacking instead of responsible disclosure. I'm more impressed by this than the incompetence of the actual issue.
The libbitcoin Manifesto (2013) [pdf]
I'm curious what extensions you installed and what your hardware looks like. I've found firefox to be faster than chrome, but I know others have run into issues like you describe.
I'll bet they just slipstream them in. There was a huge backlog of the 8GB, that now looks pretty much cleared out. So it could be awhile before the D0 show up.
You’re certainly entitled to the opinion that an agreement (as in EULA) is distinct from a license (as in GPL, MIT etc).

But many legal minds close to this issue have moved to the position that there is no meaningful distinction, at least when it comes to licenses like GPL.

For example: https://writing.kemitchell.com/2023/10/13/Wrong-About-GPLs
That's just branding. It's called Home in Facebook and Instagram, and it's the exact same thing. It's a form of discovery that's tailored to the user, just like normal searches are (even on Google and Bing etc).
So the solution is "more speech?" I don't know how that will unhook minors from the feedback loop of recommendation algorithms and their plastic brains. It's like saying 'we don't need to put laws in place to combat heroin use, those people could go enjoy a good book instead!'.
that's realy sad. at the end of the day there are a lot of bad actors but maybe at some point some techsolution might be created to prevent coping, or at least doing it with reference link
"If you see something that doesn't look right, speak to staff or text British Transport Police on 61016. We'll sort it. See it, say it, sorted."

It haunts my dreams.
You’re comparing unrelated things and completely discounting that Apple was a completely new entrant into the space vs entrenched players that had already established sales channels and carrier relations and were selling globally vs US-only to start for Apple.

Apple sold over 6M units of the first iPhone unless you’re saying 1.4M in the first quarter after launch since it launched in September. I was comparing it to phones released at a similar time and claiming that sidekick was somehow more successful is straight up laughable regardless of how you look at it.

The first iPhone defined what the smartphone category should be. Google took heed which saved Android. Nokia and blackberry did not and you can tell where they’re at now.
"Unauthorized retailer" doesn't mean they shouldn't be selling the product, just that they don't adhere to the manufacturer's pricing and advertising policies.

So to flip it on its head, why should the manufacturer be allowed to constrain the warranty just because a retailer doesn't toe the line on pricing?
What do you use for hardware and extensions?

I'm currently using Firefox on Android, and have for years and years, and have never found a bug.
I'm out of my depth here, and I don't fully understand. From what I gather, Rust restricts the possible pathways in the problem space to ensure certain assumptions in the API and to manage memory safely. Is the issue that C allows for more freedom in exploring all possible pathways, or is the problem rooted only to cultural or else?
If open source model means open weight model then open source model means nothing.

I want it to mean something!
I work in transportation safety, primarily aviation but we also support WMATA. We usually define barriers which prevent, control, or mitigate an accident or undesired state [0]. Safety systems often require warning signage. Anecdotally, I find that regulators, companies, etc. use signage or safety bulletins than active barriers [0] because they are cheaper and quicker to implement. Even when they implement something like, say, abrasive floor treatments [1], that is only one barrier and likely imperceptible to the public.

Warning signage may be helpful, but I am skeptical of its effectiveness (especially as implemented). For example, "ice-warning signs do not have a statistically significant impact on the frequency or severity of vehicular accidents that involve ice." [2]

(Disclaimer: Opinions are my own.)

[0] https://www.wolterskluwer.com/en/solutions/enablon/bowtie/ex...

[1] https://www.nata.aero/data/files/webinar_documents/preventin...

[2] https://doi.org/10.1016/S0001-4575(00)00020-8
I don’t really have much an opinion on the what, I think I just know how I want this to feel. My preference is whatever works, and then making it obvious how it works. Mystery meat config files feel like the opposite, but I totally acknowledge that’s where you have to start when building this.
The ruling itself says that this is not about 230, it's about TikTok's curation and collation of the specific videos. TikTok is not held liable for the user content but for the part that they do their 'for you' section. I guess it makes sense, manipulating people is not OK whether it's for political purposes as facebook and twitter do, or whatever. So 230 is not over

It would be nice to see those 'For you' and youtube's recomendations gone. Chronological timelines are the best , and will bring back some sanity. Don't like it? don't follow it

> Accordingly, TikTok’s algorithm, which recommended
the Blackout Challenge to Nylah on her FYP, was TikTok’s
own “expressive activity,” id., and thus its first-party speech.

>

> Section 230 immunizes only information
“provided by another[,]” 47 U.S.C. § 230(c)(1), and here,
because the information that forms the basis of Anderson’s
lawsuit—i.e., TikTok’s recommendations via its FYP algorithm—is TikTok’s own expressive activity, § 230 does
not bar Anderson’s claims.
Not at all. It’s merely a question of whether social networks are shielded from liability for their recommendations, recognizing that what they choose to show you is a form of free expression that may have consequences — not an attempt to control that expression.
this ia a good point that i need to consider going forward with engineering. thanks
Author here, long time no see Steve!

When I wrote this, my main takeaways were numerical computations with arrays, which don't tend to use for loops in Rust, and which require grokking iterators for maximum performance and rayon-parallelism boons.

To a Julia audience, seeing this style of iterator chaining is quite a new flavor to think about composing computation, so I wanted it was with that audience in mind that I wrote this.
I, a non-coder, built a LinkedIn AI copywriting app in a week
Hey HN,
I'm a HR professional who's always dreamed of building software but lacked coding skills. My last attempt at creating a website ended with a $10k bill and a clunky Wordpress mess. But last month, after a year of tinkering with GenAI, I decided to tackle a problem I personally faced: writing engaging LinkedIn posts.

My challenge was to build a web app that writes in the style of successful LinkedIn creators. All without knowing how to code.

Here's the journey:

- Starting point: A basic React template from Vercel and a Figma mockup.
- AI assistance: I turned to Claude by Anthropic. I'd upload screenshots of my designs and ask, "Act as a UI/UX expert. Rate this design X/10. How can I make it 10/10?" This iterative feedback loop refined my designs quickly.
- From mockup to code: I created a Claude Project, uploaded my template files, and asked for working code based on my mockups. This gave me a foundation, but the real work was just beginning.
- Debugging: Every error became a puzzle. I'd copy the error to Claude, get a fix, implement it, and repeat. This cycle taught me more about coding than any tutorial could.
- A pleasant discovery:Cursor IDE, a VSCode-like editor with integrated AI. Suddenly, I could ask for code changes, explanations, and bug fixes without context switching. The speed of iteration went up like 50%.

This is the final result:
www.postin.ai - a functional web app with user authentication, payments, and AI-powered post generation, built in under two weeks.

But here's what surprised me most:
- The power of specific prompts: Asking Claude to "Act as a senior React developer reviewing my code" yielded much better results than generic questions.
- The importance of understanding data flow: Even with AI, I needed to grasp how data moved through my app to debug effectively.
- The unexpected complexity of state management: What seemed simple in mockups became a tangled web of React states and effects.
- The challenge of API integration: Connecting to Anthropic's API and handling rate limits taught me more about async programming than I ever expected to learn.

This experience has me questioning the future of coding.
Will AI lower the barrier to entry for software development, or will it simply shift the skills needed from syntax memorization to effective prompt engineering and system design?

I'm still learning and iterating. Currently working on a calendar view for post scheduling, which is proving to be an interesting challenge in date manipulation and UI state management.

I'm curious to hear from the HN community:

1. How do you see AI changing the landscape for non-traditional developers?
2. For the experienced devs: What crucial areas of software development am I likely overlooking in this AI-assisted approach?

Happy to dive deeper into any aspect of this journey. Let's chat!
they made an article on ultra processed foods being ok for you?? Nuts.
Great question! It's literally all the same process! There's only a difference on a macroscopic scale. On an atomic scale, atoms are tiny vibrating charges held together (and apart!) by electric forces (well, by all forces, but the electric force is by far the strongest). A vibrating charge can emit a photon; we call this radiation. This radiation can be reabsorbed somewhere and induce a new vibration. This is technically induction (though I've never seen it referred to as such, more commonly radiative transfer). If we step back so that we no longer view individual atoms, we just see vibrations moving around within a material; we call this conduction but it's still happening via radiative transfer. If your material is a fluid and moves around for some heat-related reason (say, a change in density), we call this convection.

https://en.wikipedia.org/wiki/Radiative_transfer

Confusingly, inductive heating is a completely different process involving no heat transfer! You induce a current in material, and this current causes resistive heating.

https://en.wikipedia.org/wiki/Induction_heating

You might be wondering: "then what's resistive heating?" Well, electrons are also tiny moving charges. Care to hazard a guess how they interact with their environment?
As if brave were a good or objective source for this topic.
Two Oxford Minds Are Redefining Photoshop: Turn Any Photo into a Meme
I'm not sure goods are quite immune from this objection. Industry turns out plenty of useless widgets. The Humane AI pin creates GDP!
The statute of limitations is long and HSI often delays their indictment until the investigation is mostly wrapped up.
Yup, and while I don't know the overlap between the committees, it seems like the CoC committee gave a recommendation to the Steering Committee, and the Steering Committee acted on the findings, and it wasn't just an instant ban hammer on Tim either.

Hiding Guido's comment I could see being controversial, but I also believe allowing relitigation or reinsertion of harmful drama in governance discussions as being disruptive. Hiding the comment wasn't punitive.

Also the project shouldn't go into freeze mode because a valuable contributor is doing time for a crime, such a practice would be super destructive to the project. It'd basically give filibuster power to any contributor of sufficient 'clout' to derail and delay any steering committee decisions indefinitely
I can sue the corporation. I can start a competing corporation.

Elected governments also aren't as free as you'd think. Two parties control 99% of US politics. Suppose I'm not a fan of trade wars; both parties are in favor of them right now.
> Why do people feel the need to jump in and police tone like this?

Did you know that more information is communicated via tone than words?
This is just transforming text.

> There are not tons and tons of data pairs on the web of minimized code and unminified code for llms to learn from.

Are you sure about this? These can be easily generated from existing JS to use as a training set, not to mention the enormous amount of non-minified JS which is already used to train it.
East Taiwan is best Taiwan. West Taiwan is getting out of control. Let's send more weapons to East Taiwan.
I haven’t bought a Windows PC in 10 years so I thought it was time to upgrade the old tower I had in the closet.

I stumbled across Mini PCs and was surprised at how cheap they were so I brought one.

Turns out they were lying about the clock speed, citing 3.4Ghz when it was actually 1.7GHz.

I contacted their support to say the description was wrong but they said it was right. Don’t buy from KAMRUI.
YouTube design changed almost every year until 2020! Wild.
valid point. i will need to put more effort in security to minimaze impact of the cloning.
Sounds like God. What is private? What is public? There is a line between an omnipresent God that sees everything (zero privacy) and an Open Source AI that collects and indexes all public information. I want an AI to be programmed / trained on our conversation here. (if your reading this God / FB / OpenAI / 2025 ai Source Dataset <3)
Show HN: A discovery-focused search engine for Hacker News
We (Nick, Dens, Denzell, Fede, Drew, Aaryan, and Daniel) have been building HN Discovery, a discovery-focused search engine for Hacker News, in our spare time for the past 6 months and are excited to show it! It adds the following features relative to the existing keyword search interface and preserves the existing ones:

- no-JS version (hnnojs.trieve.ai)

- site:{required_site} and site:{negated-site} filters

- public analytics

- LLM generated query suggestions based on random stories

- recommendations

- dense vector semantic search

- SPLADE fulltext search

- RAG AI chat

- order by descendant count

client code (FOSS self-hostable) - https://github.com/devflowinc/trieve-hn-discovery

engine code (BSL source-available) - https://github.com/devflowinc/trieve

There is an extended about page with detailed information on features, how much it costs to run, etc. here - https://hn.trieve.ai/about.
Clarification:

When wood burns, it is carbon neutral.

When wood turns to charcoal, the carbon becomes pretty much inert. Unless it is burnt, it won’t rot or other wise return to the atmosphere. That makes wood fired charcoal manufacturing carbon negative.
I suspect, but definitely do not know, that all the coding aspects of llms work something like this. It’s such a fundamentally different problem from a paragraph, which should never be the same as any other paragraph. Seems to me that coding is a bit more like the game of go, where an absolute score can be used to guide learning. Seed the system with lots and lots of leetcode examples from reality, and then train it to write tests, and now you have a closed loop that can train itself.
A bit of a mix to be honest. The practical/technical aspects of the platform is good. There is some basic quality checking (and guidance) of mentors - good without being onerous. And the 1-on-1 experiences I have had were good. But I found it difficult to get a reasonable amount of gig the few weeks I tried it more actively. Majority of the requests posted are very low effort, barely two coherent sentences about what they needed. For a subset of more serious requests, that fit my skill set, I wrote personalized messages describing how I could help. I also made clear I offered half price for students and early professionals. But the hitrate was extremely low, maybe 2%. Probably my rate was too high for those requests. But it is already set lower than what I charge for regular longer term engagements. Maybe it looks bad I only have 3 reviews, idk... Overall I have found that it is not good as an added income source (as someone in a high CoL, Norway) - but it is great as a low-friction offer for those that find me and really want a bit of my advice in particular. They then find me via GitHub etc
Russian government hackers used spyware exploits made by NSO and Intellexa