MurphyA/hacker-news huggingface dataset:
by bsder | 2025-07-23 21:54:42+00:00
Please be very careful using these things, they can request remarkable amounts of power and "safety" is in your hands.

A good example: all of the Chinese datasheets show a single switch transistor. If you happen to have more voltage on the load side due to capacitors or switching regulators, that will backdrive and can cause all manner of failures.

Contrast this with the AP33772S datasheet which has the expected double switch transistor which prevents backdrive and has an overcurrent sense. The downside, of course, is that the chip with some safety features costs $1.50 while the cheaper ones are all about $0.50.

Caveat ingeniarie.
by linsomniac | 2025-07-23 21:55:11+00:00
Too bad the YouTube TV viewing experience sucks.

Don't get me wrong, I've been a subscriber for a very long time, and I get a lot of great content there. But going there to watch something specific, or watching a TV series, really sucks.

I recently realized a few studios (IIRC Warner Bros and Paramount) had put a lot of content there including movies and TV shows. I decided to watch Dick Van Dyke, because I'm a Carl Reiner fan. You can't really "Watch Next" a TV show and then go in to watch the next episode. And in fact sometimes it just wants to show you the shows in a non-linear order. "I want to watch the next Dick Van Dyke" is not something that YouTube makes easy. Another example, a friend recent sent me The Chit Show, I opened the playlist of the shows, and it played them in the reverse order (which I didn't really understand until the end when I realized I was on the first episode).

Also, the YouTube algorithm for suggesting things for you to watch is really bad. It gets stuck in ruts and it's hard to get out of them.

YouTube is amazing for learning DIY things, which is a large part of why I have subscribed for so long. But for watching entertainment the whole UI really just doesn't work.
by starkrights | 2025-07-23 21:55:28+00:00
It doesn’t capture the spirit of a group of friends getting together to play video games in a shared space? Or there’s a different definition of the LAN party spirit that somehow entirely precludes that aspect?

Like I could understand saying it misses out on the aspect of literally bringing your individual PCs, missing out on the neatness of everyone’s individuality as another commenter pointed out, but I don’t think they’d agree that the in person, gaming in the same place aspect is entirely precluded from “the spirit”
by oliverc1622 | 2025-07-23 21:55:31+00:00
My data came from Baseball Savant. I like making custom leaderboards and viewing relationships between different stats. For this analysis, I decided to use a decision tree model to find groups of players by barrel and fast swing rate. The model returned 4 groups that were statistical different (p-val < 0.05). The majority of qualified batters fall into the 8%-35% fast swing rate group, garnering a barrel rate just shy of 9%. I wrote a blog post about the formalization of decision trees if anyone wants to learn more!
by tossandthrow | 2025-07-23 21:55:37+00:00
This sound like a wild and very contrived argument.

Both because that memory leaks are normal is types languages - and does usually not matter in most serious applications - and because this class of errors is usually not what types catch.

Types have value when you 1) refactor and 2) have multiple people working on a code base.

The error you see when you don't have types is something like a BadArityError.
by legitster | 2025-07-23 21:55:53+00:00
I'll come out and say that I am a full blown Youtube addict.

A lot of what I may watch on Youtube might be categorized as "background noise" - lots of talking head content that I can play on the background. Much of it is low quality and self-serious - but it's arguably much better quality than any equivalent "background noise" show on TV.

Ironically, I feel like longform Youtube content is actually better for my attention span and more rewarding - because creators aren't trying to appeal to broad audiences, they don't have to jump from topic to topic and keep things under a time limit.

I recently watched the Animagraffs video on the Hoover Dam and I was blown away. I have probably watched dozens of TV documentaries on the Hoover Dam over the year, but none of them actually just stop and methodically explained everything from top-to-down so thoroughly.

Even beloved shows like Mythbusters, there are now dozens of channels on Youtube that do all the same things we enjoyed Mythbusters for but better and with less filler and shmaltz.
by potato3732842 | 2025-07-23 21:56:30+00:00
Um, what?

You go to the restaurant with your box truck full of steam cleaning equipment and you deep clean the place. Without some sort of "being lived in" criteria law seems very clearly written to allow them to fine those people.

Or you park your semi in a reasonable seeming place after your delivery for the day or whatever and sit on your butt for 10hr because that's what the law requires
by UncleEntity | 2025-07-23 21:56:34+00:00
In the couple days since I posted my confusion (threads merged or something) I consulted the daffy robots and figured out how it all works. Also had them come up with a design document for "a specialized compiler and virtual machine architecture for parsing Protocol Buffer messages that achieves significant performance improvements through a novel compilation pipeline combining protobuf-specific AST optimization, continuation-passing style transformations, and tail call interpreter execution."

Interesting times we live in...
by redn0vae | 2025-07-23 21:56:35+00:00
This kind of defeats the purpose of TPL. Part of TPL is setting up your own network segment. There's a dashboard that shows who has what working.

Part of the fun of TPL isn't just that your computer can talk to another computer, it's that you have your own setup configured form the ground up so your /24 can talk to other /24s on TPL. I 100% understand some people will not enjoy that and won't find it fun, and that is ok. Some people do enjoy learning new things about setting up infrastructure, and this scratches some of that itch.
by blueflow | 2025-07-23 21:57:01+00:00
> No even merely scientifically literate person has said that the Covid-19 vaccines (or any vaccine for that matter) are 100% effective.

I can't argue that. I think its a "true scotsman" situation. If i quote the WHO[1] on this, you might just say they are not literate enough.

Take note that they say "Immunity" instead of "Efficacy", that is because it was the knowledge in 2020.

[1] https://www.who.int/news-room/questions-and-answers/item/her...

The rest of your post are personal attacks that do not add to your point.
by k310 | 2025-07-23 21:57:44+00:00
Simple. He'll just change his name, and Donald Trump then refers to someone else. The Supreme Court is likely to uphold the change. Suggestions:

John Barron, John Miller, Carolin Gallego, David Dennison (since he has already used them.) [0]

[0] https://en.wikipedia.org/wiki/Pseudonyms_used_by_Donald_Trum...
by TheAlchemist | 2025-07-23 21:57:47+00:00
Elon Musk on Robotaxis in 2019 to investors: "I feel very confident predicting 1 million autonomous robo-taxis for Tesla next year,"

Elon Musk on Robotaxis in 2025 to investors: "We have done what we said we were going to do. That doesn't mean we're always on time, but we get it done. And our naysayers are sitting there with egg on their face."

Tesla launched a 'Robotaxi Service' which is:

- operating in a geofenced area in Austin, with a fleet of ~10 cars

- not open to public, only to Tesla influencers

- having a 'safety driver' inside the car with a finger constantly on an emergency stop button

- operating during clement weather

In the meantime, he became the richest person in the world selling those lies to gullible investors.

Ps. Sorry for posting so much about Tesla, but I feel like not enough people realize how scammy this whole thing is.
by vanviegen | 2025-07-23 21:58:19+00:00
Congratulations on your release! That packs a lot of functionality in a surprisingly small and readable (and thus auditable) shell script. Great work!

One thing though: I can imagine you being rather anonymous (no real name, new HN account, new GitHub account) might make people a bit nervous around a security tool. You probably have good reasons for that, but if not.. you might want to reconsider and take credit?
Telnyx adds versioning and canary deployments for AI Agents
by maevesentner | 2025-07-23 21:58:24+00:00
Telnyx just rolled out versioning and canary deployment support for AI Agents. You can now create multiple versions of your agent, compare performance in real time, and use canary deploys to test updates safely before going fully live.

It’s a powerful upgrade for anyone building production-ready AI Agents with confidence and speed.

More here: https://telnyx.com/release-notes/versioning-canary-deployments
by serbuvlad | 2025-07-23 21:58:26+00:00
My point is that that's exactly the deployment model of Docker. So if I have 20 apps that are a Go binary + config on top of Alpine, that Alpine layer will only exist once and be shared by all the containers.

If I have 20 apps that depend on a 300MB bundle of C++ libraries + ~10MB for each app, as long as the versions are the same, and I am halfway competent at writing containers, the storage usage won't be 20 * 310MB, but 300MB + 20 * 10MB.

Of course in practice each of the 20 different C++ apps will depend on a lot of random mutually exclusive stuff leading to huge sizes. But there's rarely any reason for 20 Go (or Rust) apps to base their containers on anything other than lean Alpine or Debian containers.

Even for deploying wasm containers. Maybe there are certain technical reasons why they needed an alternate "container" runtime (wasi) to run wasm workloads with CRI orchestration, but size is not a legitimate reason. If you made a standard container image with the wasm runtime and all wasm applications simply base off that image and add the code, the wasm runtime will be shared between them, and only the code will be unique.

"Ah, but each container will run it's own separate runtime process." Sure, but the most valuable resource that probably wastes is a PID (and however many TIDs). Processes exec'ing the same program will share a .text and .rodata sections and the .data and .bss segments are COW'ed.

Assuming the memory usage of the wasm runtime (.data and .bss modifications + stack and heap usage) is vaguely k + sum(p_i) where p_i is some value associated with process i, then running a single runtime instead of running n runtimes saves (n - 1) * k memory. The question then becomes how much is k. If k is small (a couple megs), then there really isn't any significant advantage to it, unless you're running an order of magnitude more wasm processes than you would traditional containers. Or, in other words if p_i is typically small. Or, in other other words, if p_i/k is small.

If p_i/k is large (if your programs have a significant size), wasi provides no significant size advantage, on disk or in memory, over just running the wasm runtime in a traditional container. Maybe there are other advantages, but size isn't one of them.
by robocat | 2025-07-23 21:58:41+00:00
If you take away the incentive to work for an extra dollar, you break marginal incentives for high value workers.

Too much progressive taxation is as unbalanced as CEO pay is.

I am lucky enough to live in New Zealand and be taxed at 39% plus 15% sales tax. At some point I feel like the government is getting its pound of flesh. I just don't feel motivated to work hours to earn extra.

The incentive of the government should be to encourage me to earn more since it would get its cut. Every other citizen misses out on 39 cents when I feel it is not worth trading my time for less than 61 cents on the dollar.

Incentive systems matter. It isn't only about money - it is also about what feels fair.

Everybody complains about the people earning more than them. If you're in the US you are excessively rich compared with most of the rest of the world. How about we tax everybody in the US at 50% and spread some of that wealth down to the workers in Vietnam or Bhopal? Strange how so many people whine about fairness but those same people don't wish to share their wealth fairly.
by DevX101 | 2025-07-23 22:00:06+00:00
I'm not sure the economics of big budget TV series work anymore unless you catch lightning in a bottle so I understand them cutting prod costs.

YouTube's economics are just so much better. YT provides no up front payment for content. The channels are almost infinite, microtargeted to everyone's interest. And the payout is proportional to the success of the content, and paid AFTER the audience has viewed. TV on the other hand has to make big bets before they know whether a show will be a hit.

I've had a TV for years but don't have cable and never watch broadcast. My TV is just a large ipad.
by adolph | 2025-07-23 22:00:26+00:00
I haven't watched the one about the dog, but the one with the initial explication of capstan drives [0] was excellent. I've been dreaming about it for the last year, especially since about the same time another person started working with the da Vinci robot actuators which use cables to generate find motion.

0. High Precision Speed Reducer Using Rope: https://www.youtube.com/watch?v=MwIBTbumd1Q

1. Building a DIY Surgical Robot https://www.youtube.com/watch?v=d_8rHKrwr-Q
by chasil | 2025-07-23 22:00:48+00:00
Logical?

If the transaction committed, then the block metadata must change, but the row content remains the same.

If the transaction is not active and did not commit, then the uncommitted data must be discarded, and the saved rollback must be restored.

That does not fit within what I assume to be your distinction between a physical and a logical write. It does preserve acid.
by lacker | 2025-07-23 22:00:57+00:00
Draw 99 circles in a row, then draw a separate polygon around each one with only a teeny amount of excess area, then connect those polygons with teeny little connectors to make it a single polygon. When I say "teeny", you can make those arbitrarily small, so you can certainly fit them under 1 total area.

Okay, it's maybe not "obvious" in a regular human sense, but in a graduate math class you could claim this was "obvious". It would be pretty clear if I were drawing a diagram on a whiteboard. I would definitely take less time proving this to a human, than formalizing it.
by chungty | 2025-07-23 22:01:09+00:00
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by yjftsjthsd-h | 2025-07-23 22:01:32+00:00
In all fairness... How would that work? Not even just on Debian; in the general case, I don't see how to avoid that other than full filesystem snapshots or backups of some sort. Even on, say, a NixOS system where rolling back all the software and config (basically, /, /usr, and /etc) to exactly its old config is as easy as rebooting and picking the old generation, databases will still have migrated their on-disk format.
by ndkap | 2025-07-23 22:02:05+00:00
With this news, I am inclined towards buying Pixel and install GrapheneOS in the future just to stick to the pro-mass surveillance police state. However, I am concerned about the warranty. Does anyone know if installing Graphene on Pixel eliminate the hardware warranty?

Also, what do these cops and government officials say about iPhones? iPhones, according to what I've heard, also have good privacy, is that not true? Is it not private enough for criminals?
by QuercusMax | 2025-07-23 22:02:11+00:00
It seems like you're using "women" as a proxy for "smaller people". Children and small-statured men are just vulnerable as women in crashes. Regardless, we now do crash tests with a variety of body types.

A 5-foot man is just as vulnerable when being hit by a car as a 5-foot woman, and obviously children are much more vulnerable than grown women when being hit by giant vehicles.
by adastra22 | 2025-07-23 22:02:39+00:00
All good. I know less about Boom's technology, but yeah from what I understand they took a different approach: redirect the sonic boom up and out so that it it spends more time traveling through the atmosphere and isn't so loud once it hits the ground. The X-59 solution is to not make a sonic boom in the first place. You can't eliminate the noise entirely, but with the X-59 they talk about a "sonic thump" that is qualitatively of a different order.

It's a bit like stealth tech: early "low observable" fighter planes did things like switch to unibody cockpits so there were fewer reflective interfaces and therefore a smaller radar cross section. Then the F-117 and B-2 went with "be fucking invisible to radar" (or approximately so). Totally changes the game.

A "sonic thump" will be noisier than normal operating engine noise. You will hear it and it will be noticeable in the sense that unlike regular airplane takeoff and landing, it will be a distinct transitory sound.

But in terms of absolute noise levels and mechanical properties, the "sonic thump" of a commercial airline would probably be considerably quieter than, for example, the regular takeoff/landing noise of a military jet. It needs to be characterized and understood to see what the effect would be on communities living near supersonic airports, but not a real engineering concern.

Your question is valid with respect to Boom though, and that is part of their challenge to getting regulatory approval for supersonic transition over land.
by sgt | 2025-07-23 22:02:45+00:00
> "including two sites I'd bet money most of you visit at least a couple of times a month."

I mean, I don't think I use any restaurant chain web sites. So that leaves an entertainment company.

Netflix, Apple TV+, Disney? I mean... you did say most of us will use some of these sites every month. Most of the entertainment web sites that people use all the time are HUGE companies, why would they use your little company (your own words) ?
by joemi | 2025-07-23 22:03:01+00:00
Interesting project! I'm in charge of all things technical at the book store I work at, so this piqued my interest. We've solved for ourselves many of the problems that Bookhead solves since we've been open for a few decades, so this doesn't seem like something we'd want to switch to, but I'm still bookmarking it and keeping my eye on it. Also I hope you don't mind me offering some suggestions/observations...

- If you're _not_ using AWS, I'd explicitly mention that somewhere. I know there are a lot of indie bookstores who care about avoiding Amazon and any Amazon services. If you _are_ using AWS, well, you might find that you get more business from indie booksellers by not using it.

- I'd add an explicit list of supported POS systems in the Overview of the docs. This was one of the very first things I wanted to check. (My store's POS isn't supported, btw.)

- I'd add an explicit list of supported channels in Overview of the docs, as well. This was also one of the very first things I wanted to check.

- I'd focus on adding Square as a supported POS. From what I see in the ABA forums, this kind of thing might appeal to the bookstores using Square as a POS. Especially if you can load the book data you have into their POS, possibly based on SKU? Maybe that actually would warrant a separate product you could offer (or that someone else could make).
by lockedinai | 2025-07-23 22:03:11+00:00
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by 63 | 2025-07-23 22:03:38+00:00
This is a valuable viewpoint that lines up somewhat with some other discussion I've seen on the topic [0]. I'd like to see more posts about structuring code for the auto vectorizor (with libraries or otherwise) rather than writing simd by hand. Do you have any documentation you'd recommend?

[0] https://matklad.github.io/2023/04/09/can-you-trust-a-compile...
by redn0vae | 2025-07-23 22:05:13+00:00
Some people have just opened up their entire home networks, other people have VLANs set up and only share that VLAN with TPL. However, as written in the article, everyone knows at least a few other people on TPL and that interpersonal real life trust is what keeps people from screwing around on everyone else's networks. Everyone is also an adult.
by NekkoDroid | 2025-07-23 22:05:15+00:00
> If /tmp/ fills up your RAM

tmpfs by default only uses up to half your available RAM unless specified otherwise. So this isn't really a consideration unless you configure it to be a consideration you need to take into account.

(Systemd also really recently (v258) added quotas to tmpfs and IIRC its set by default to 80% of the tmpfs, so it is even less of a problem)
by aspenmayer | 2025-07-23 22:05:19+00:00
NOAA is under the Chamber of Commerce. The military has their own meteorological capabilities from what I understand, though they may also use NOAA data. I don’t know how you mean that NOAA is a military agency, as they are not in the chain of command of any military agency or group.

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

Even their officers are not armed services, though they do receive a commission. I think you might be thinking of something that I haven’t seen or heard about, so please let me know if I am wrong.

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