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Git commands I run before reading any code

https://piechowski.io/post/git-commands-before-reading-code/
787•grepsedawk•5h ago•176 comments

MegaTrain: Full Precision Training of 100B+ Parameter LLMs on a Single GPU

https://arxiv.org/abs/2604.05091
99•chrsw•2h ago•17 comments

Veracrypt project update

https://sourceforge.net/p/veracrypt/discussion/general/thread/9620d7a4b3/
653•super256•7h ago•211 comments

They're Made Out of Meat (1991)

http://www.terrybisson.com/theyre-made-out-of-meat-2/
77•surprisetalk•3h ago•22 comments

Škoda DuoBell: A bicycle bell that penetrates noise-cancelling headphones

https://www.skoda-storyboard.com/en/skoda-world/skoda-duobell-a-bicycle-bell-that-outsmarts-even-...
237•ra•5h ago•317 comments

US cities are axing Flock Safety surveillance technology

https://www.cnet.com/home/security/when-flock-comes-to-town-why-cities-are-axing-the-controversia...
183•giuliomagnifico•2h ago•90 comments

Show HN: We fingerprinted 178 AI models' writing styles and similarity clusters

https://rival.tips/research/model-similarity
12•nuancedev•43m ago•2 comments

Audio Reactive LED Strips Are Diabolically Hard

https://scottlawsonbc.com/post/audio-led
89•surprisetalk•1d ago•24 comments

Project Glasswing: Securing critical software for the AI era

https://www.anthropic.com/glasswing
1404•Ryan5453•20h ago•726 comments

Revision Demoparty 2026: Razor1911 [video]

https://www.youtube.com/watch?v=Lw4W9V57SKs&t=5716s
259•tetrisgm•9h ago•89 comments

Lunar Flyby

https://www.nasa.gov/gallery/lunar-flyby/
855•kipi•23h ago•207 comments

The Harvard Library Passport

https://fi-le.net/stamps/
24•fi-le•2d ago•3 comments

Show HN: We built a camera only robot vacuum for less than 300$ (Well almost)

https://indraneelpatil.github.io/blog/2026/robot-vacuum/
68•indraneelpatil•2d ago•19 comments

Your File System Is Already A Graph Database

https://rumproarious.com/2026/04/04/your-file-system-is-already-a-graph-database/
82•alxndr•2d ago•30 comments

Protect your shed

https://dylanbutler.dev/blog/protect-your-shed/
230•baely•11h ago•62 comments

System Card: Claude Mythos Preview [pdf]

https://www-cdn.anthropic.com/53566bf5440a10affd749724787c8913a2ae0841.pdf
772•be7a•20h ago•569 comments

Mario and Earendil

https://lucumr.pocoo.org/2026/4/8/mario-and-earendil/
36•doppp•5h ago•14 comments

GLM-5.1: Towards Long-Horizon Tasks

https://z.ai/blog/glm-5.1
577•zixuanlimit•22h ago•233 comments

LLM plays an 8-bit Commander X16 game using structured "smart senses"

https://pvp-ai.russell-harper.com
7•russellharper•1h ago•0 comments

Native Americans had dice 12k years ago

https://www.nbcnews.com/science/science-news/native-americans-dice-games-probability-study-rcna26...
105•delichon•4d ago•46 comments

Cambodia unveils statue to honour famous landmine-sniffing rat

https://www.bbc.com/news/articles/c0rx7xzd10xo
444•speckx•21h ago•105 comments

How to get better at guitar

https://www.jakeworth.com/posts/how-to-get-better-at-guitar/
409•jwworth•2d ago•207 comments

Slightly safer vibecoding by adopting old hacker habits

http://addxorrol.blogspot.com/2026/03/slightly-safer-vibecoding-by-adopting.html
141•transpute•5d ago•81 comments

A truck driver spent 20 years making a scale model of every building in NYC

https://www.smithsonianmag.com/smart-news/a-truck-drive-spent-20-years-making-this-astonishing-sc...
375•1659447091•2d ago•64 comments

S3 Files

https://www.allthingsdistributed.com/2026/04/s3-files-and-the-changing-face-of-s3.html
342•werner•19h ago•102 comments

Show HN: An interactive map of Tolkien's Middle-earth

https://middle-earth-interactive-map.web.app/
255•frasermarlow•18h ago•51 comments

Show HN: I pipe free sports streams into Jellyfin – no ads, just HLS

https://github.com/pcruz1905/hls-restream-proxy
21•pruz•2h ago•2 comments

Binary obfuscation used in AAA Games

https://blog.farzon.org/2026/04/binary-obfuscation-that-doesnt-kill-lto.html
122•noztol•2d ago•66 comments

Cloudflare targets 2029 for full post-quantum security

https://blog.cloudflare.com/post-quantum-roadmap/
370•ilreb•1d ago•112 comments

Show HN: Gemma 4 Multimodal Fine-Tuner for Apple Silicon

https://github.com/mattmireles/gemma-tuner-multimodal
207•MediaSquirrel•19h ago•26 comments
Open in hackernews

US cities are axing Flock Safety surveillance technology

https://www.cnet.com/home/security/when-flock-comes-to-town-why-cities-are-axing-the-controversial-surveillance-technology/
177•giuliomagnifico•2h ago

Comments

lenerdenator•1h ago
It really is amazing how they managed to fit so much copper into those devices.
therobots927•1h ago
Would be a shame if it became common knowledge.
Dezvous•1h ago
It's quite ironic to get an amazon ring video ad while viewing this article.
therobots927•1h ago
Ring is just as bad. Arguably worse because it comes with a convenience / personal security factor.
elphinstone•51m ago
An obnoxious, autoplay-at-full-volume ad that took the page an extra 30 seconds to load and somehow bypassed firefox adblockers...
josefritzishere•1h ago
Funny that. Not everyone wants to live in an open air prison.
jmuguy•1h ago
I'm surprised Garrett Langley still has a job, he seems wildly out of touch. For instance he really believes that his Panopticon as a service is the reason crime is down in cities, conveniently ignoring crime rates prior to COVID.
therobots927•1h ago
He won’t for long. The backlash is just getting started. Left or right, no one wants their whereabouts subject to constant surveillance.

His only advantage is that the cops are on his side and won’t let go of these cameras without a fight.

mlinhares•1h ago
Nah, he's just missing a good PR campaign, there's a 30% of the population that will eat whatever their supreme leaders say they should, I'm sure they can sanewash these cameras as well.
therobots927•55m ago
America is pretty polarized around privacy as demonstrated by reactions to the Snowden leaks. So I think that’s a fair point.
hrimfaxi•52m ago
That was over a decade ago. I wonder if it has gotten better or worse since.
zulux•32m ago
It's gotten worse: I'm so tired of rampant crime that I'm up for a little surveillance. And I used to donate to the ACLU before they went crazy.
estebank•22m ago
> And I used to donate to the ACLU before they went crazy.

When was that? Because in 1977 they defended Nazi's free speech to demonstrate in a town that had jewish people as half its population so it tried to block them, and I don't recall them doing anything nearly that controversial since.

https://www.aclu.org/news/free-speech/the-skokie-case-how-i-...

selectodude•17m ago
Yeah that’s when they actually defended free speech. They now take sides on what speech should be allowed. That’s crazy.
mothballed•20m ago
Ha ha ha, you think it'll be used to help you? A hit and run drived totaled my car at an intersection with cameras, the cops would not even show up even though it was all on camera. When I called insurance they didn't bat an eye, the claims person pretty obviously was used to this happening all the time and didn't even question why I wasn't able to get a police report.
ses1984•56m ago
No one wants their whereabouts subject to constant surveillance, except everyone who carries a “normal” cell phone, in other words not a burner.
therobots927•54m ago
Yes but you can always leave your phone behind if you want to drop off the map. Flock makes that borderline impossible.
deadbabe•3m ago
You can remove your license plate, you will get pretty far before it actually gets you pulled over.
hrimfaxi•53m ago
Do people who carry normal cell phones do so with the active desire to have their whereabouts subject to constant surveillance?
whimsicalism•30m ago
I'm very in favor of speed & redlight cameras and don't have a particular problem with license plate trackers. I think we partisan-ize far too many things nowadays, unfortunately.
snsr•25m ago
Maybe you're also in favor of some light reading https://constitution.congress.gov/constitution/amendment-4/
whimsicalism•22m ago
you think speed cameras violate the 4th amendment?
mothballed•19m ago
No but license plate requirements pretty clearly violate the 4th and/or 1st amendment, IMO. And without being required to have your license plate searched (registration 'papers' forced to be displayed) at all times without even an officer presenting RAS or PC of a crime, these cameras become a lot less useful.

I don't see how removing the cameras is compatible with the first amendment, but if you have the right of "speech" to record me in public chasing every place I go in a manner that is the envy of any stalker, I ought to have the right of "speech" not to "say anything" (compelled speech of showing my plate).

nemomarx•14m ago
It really doesn't seem like the courts agree that you have a right to travel via car without a visible plate.
mothballed•11m ago
The courts have been wrong about many things, sometimes for centuries before they've fixed it. Some things they think they've interpreted correctly now that they'll turn around and interpret some other way later.

Trying to interpret viewing and recording the plate as speech but not displaying it as speech is trying to have your cake and eat it too. If the camera can stalk my car everywhere and record it under auspices of 'speech', it's only logical I can hide it as 'speech.'

oooyay•12m ago
Both of these camera systems also usually come with a kangaroo civil court of sorts. Last time I looked at red light camera distribution in Texas it was also fairly obvious that they were only installing them in poorer areas.

These systems were largely disliked bipartisanly because of those factors.

delecti•21m ago
> no one wants their whereabouts subject to constant surveillance

But sadly lots of people want everyone else subject to it, and some are willing to submit to it themselves to get it. It's not a foregone conclusion.

anthonypasq•8m ago
i think politicians have seriously underestimated how much people don't like crime, and most people would take constant surveillance if it could actually improve feelings of safety in urban environments.
energy123•5m ago
Enforcing public safety effectively is one of the most pro-democracy things you can do. Otherwise people use democracy to elect public safety authoritarians like the wildly popular Bukele and Duterte.
thinkingtoilet•1h ago
Does he really believe it or is it his job to say he really believes it?
everdrive•1h ago
Could he tell the difference?
Zigurd•1h ago
"Garrett Langley" sounds like what they renamed the villain in Le Mis for an American audience.
jdross•1h ago
I realize how unpopular flock is, and I will first say that I have literally never personally looked into the privacy concerns. But one city you don’t see named here is SF, which has cited Flock as a primary driver of its 10x reduction in car break-ins, and 30% reduction in burglaries. Those were a quality of life plague while I lived there
ceejayoz•1h ago
Crime's been descending from the COVID blip for a while, everywhere, Flock or otherwise. My city saw zero murders in Q1; 2021 saw ~15 by now.

In other words: https://www.youtube.com/watch?v=xSVqLHghLpw

whimsicalism•26m ago
it's clearly not a covid effect https://www.sfchronicle.com/projects/sf-car-breakins/
ceejayoz•24m ago
The spike in your link's chart clearly starts in early 2020.

And "While our data extends only to 2018" is... important, yeah?

whimsicalism•23m ago
i encourage other people reading to look at the chart so they can assess the veracity of ^ comment
ceejayoz•20m ago
Here it is.

https://imgur.com/a/FK3sfna

There's an enormous drop in edit: late 2019, and the second drop starts in 2023.

https://www.sanfranciscopolice.org/your-sfpd/policies/depart...

> Starting on March 19, 2024, Flock Safety began installing ALPR cameras in various strategic locations across San Francisco. This rollout is expected to take place over the next 90 days. Per 19B ALPR policy, the administration of the Flock ALPR system is the responsibility of the Investigations Bureau.

How did the Flock cameras cause two crime drops before their installation?

The article's note about 2018 is talking about extending backwards, not forwards. It's entirely accurate, and a direct quote from your link.

whimsicalism•18m ago
that drop is obviously in early 2020, not 2019 and there is no way you can look at that chart and describe car breaks ins as a "COVID blip"
ceejayoz•16m ago
Look at the X axis labels again.

The chart is trending down by January 2020, changes directions (upwards) right around the March 2020 spot, and again around (down) the July 2023 spot.

The fact that they only have data going back to 2018 means it's hard to say if the pre-COVID stuff was the norm or unusual.

To be super-clear, here's the chart annotated to show that 90 day window (black rectangle) in which the cameras were installed. https://imgur.com/a/i00Gna0

BoggleOhYeah•51m ago
Any evidence that the reduction is actually due to the cameras?
esbranson•13m ago
There is no evidence it's not due to the cameras, not that I am aware of. Lots of theories abound, but absence of evidence is not evidence of absence.
MisterTea•47m ago
> which has cited Flock as a primary driver of its 10x reduction in car break-ins, and 30% reduction in burglaries

Are there reports or studies released which explains how the flock system influenced these reductions?

cucumber3732842•27m ago
The crime did not happen because of a lack of technological capability or resources availability at a given price point. It happened because of politics and priorities. The 1984 camera dragnet vendor is no more responsible for the change in politics and priorities and subsequent crime reduction than whatever vendor sold the tires for the cop cars.
phendrenad2•1h ago
It's funny, if the company had just sold cameras to cities, they probably could have avoided this whole mess. But they just had to hit some keywords for Wall Street (like "AI" "cloud" and "SaaS"), which had the side-effect of making it appear (true or not) that they were part of a Palantir-style surveillance panopticon that tracks you everywhere.
alex43578•34m ago
A big part of the value is the network: track a stolen a car or a suspect in the next town over, or across the country.
cucumber3732842•30m ago
And they will either quietly rebrand and build it or someone else will.

Government loves the product. What it doesn't like about Flock is that the peasants are aware about it and complaining.

Larrikin•3m ago
Or a woman who got an abortion
e2le•1h ago
For those unfamiliar, you can read more about the flock safety cameras themselves here:

https://consumerrights.wiki/w/Flock_license_plate_readers

And more about the company behind the cameras:

https://consumerrights.wiki/w/Flock_Safety

gosub100•1h ago
Someone in my hometown was arrested for vandalizing them. The media chose to say "city owned security camera". It's amazing how they will rush to defend private enterprise.
Zigurd•1h ago
Legacy local news is highly dependent on the police for content and access. No surprise.
anthonypasq•7m ago
the alternative is to not punish vandalism? what are you even saying?
gosub100•3m ago
Rephrase your question without the use of dichotomy fallacy and ill respond.
waNpyt-menrew•57m ago
Would crime go up, down or stay the same if all surveillance cameras were removed? The answer to that is the only one that matters.

Ironically many people who whine about surveillance cameras have their video door bells or similar setups.

So which is it?

macintux•56m ago
Crime would go down if everyone was executed. Your question is not the only one that matters.
hrimfaxi•56m ago
No it's not. Would crime go up, down, or stay the same if we had to get strip searched before entering airplanes?
waNpyt-menrew•54m ago
The types of crime that would happen in an airplane would already be identifiable due to its constrained cabin, so I don’t understand the comparison.

Let’s use your example for say a concert. Is checking bags worth it? Would crime go up if there was no bag check? Why or why not?

ceejayoz•40m ago
> Is checking bags worth it?

Probably not. It's mostly there to preserve the profits from alcohol sales.

> Would crime go up if there was no bag check?

Did it go down when they added them?

ceejayoz•49m ago
I mean, that depends on whether you consider the warrantless, disproportionate search a crime.

It should be!

RankingMember•53m ago
> The answer to that is the only one that matters.

Is it, though? Crime would be super low if we were all confined to prison cells by default, too.

waNpyt-menrew•52m ago
For a tech forum the rebuttals are terrible. I expected better. Cameras do not confine one to a prison cell.
ceejayoz•48m ago
> For a tech forum the rebuttals are terrible.

Physician, heal thyself!

RankingMember•42m ago
You made a broad-brush statement that essentially justified anything in the name of safety. You might want to re-word your statement if you meant otherwise.
peab•32m ago
It's a stretch for sure.

I think the point is that it's a tradeoff of civil liberties in exchange for safety.

I think it's an interesting discussion and it's not clear to me what the right answer is.

Given the first amendment in the USA, i think once it's cheap enough everyone will be filming everyone all the time. Just look at how many people have ring doorbells.

throwway120385•47m ago
There are ways of doing this that don't require you to abdicate all of your privacy to a third-party SaaS company who makes it easy to share information with the police everywhere.

My camera system is not connected to the cloud and it has a retention policy of 4 weeks. I took pains not to aim them anywhere where I'd be collecting data outside of my own property. There's full-disk encryption in use. The police could maintain their own surveillance network and place their own cameras in a legally compliant way and it would be fine.

Flock and Ring are awful because they enable easy surveillance and search after the fact, not a priori because they are surveillance systems. If they required proof of warrant before letting the police execute a search I think a lot of people would be more comfortable with them. A police officer stalking an ex is like the basic example you get if you ask an ALPR vendor why we need audit logging and proactive auditing of all searches. But that's not the only way these tools enable invasion of privacy.

If you want proof that that's the problem with them, you should know that people have been building wired camera systems and ALPR systems for decades before Flock and Ring came into existence. So it's solely the cloud Search-as-a-Service business model that's the problem there.

HelloMcFly•22m ago
> The answer to that is the only one that matters.

This statement rests on the belief that absolute crime rate is the only thing that matters, and is a cousin to the "I have nothing to hide!" response from people who care little for intrusions to their privacy. Are you in favor of giving law enforcement authorities a way to unlock all private electronic devices?

I'm willing to tolerate the presence of some crime in the name of personal liberty. I do not think my whereabouts should be known on demand by government actors just because I drive a car.

gorgonical•57m ago
Musician-turning-tech anarchist (?) Benn Jordan is making a very interesting series of videos about Flock cameras, their poor safety, and their gray-area interfacing with local governments:

https://www.youtube.com/watch?v=UMIwNiwQewQ

https://www.youtube.com/watch?v=uB0gr7Fh6lY

https://www.youtube.com/watch?v=vU1-uiUlHTo

https://www.youtube.com/watch?v=Pp9MwZkHiMQ

I recommend them.

boriskourt•51m ago
Super worth a watch. Lots of technical tidbits also.
AndrewKemendo•33m ago
Wow thank you for sharing this I had no idea this guy existed!

There’s more of us techno anarchists out there apparently!

baggachipz•45m ago
I drove into a very affluent subdivision this weekend, and like most others around here it had a flock camera recording every car on the way in. This camera, however, had the gall to advertise its presence as a neighborhood security measure. "Flock Safety watches this neighborhood" read the sign on the post, or some such. Of course the residents there had no choice but to accept its installation, as the local police support it. Nefarious framing and marketing in the name of "safety".
bradleyankrom•34m ago
I saw the same thing in a Home Depot parking lot yesterday. I guess I'm glad there's some sort of notice about it, even if its intent is more, I dunno, branding? It took me a while to figure out what all the solar panel + camera on a post installations were as they popped up around my town. I even pulled over to inspect the hardware for signs of ownership and didn't find anything.
whimsicalism•29m ago
we enforce laws presumably in the name of safety, is this really nefarious framing or marketing? seems pretty straightforward to me.
baggachipz•16m ago
It is very clearly advertising on their part. They have been paid to put that thing there and added the sign to announce the presence. It's like when you get your roof replaced by a business and they ask if they can put a sign in your yard. They're not doing it to make everybody know that you're getting your roof replaced, they're advertising.
bob1029•26m ago
> no choice but to accept its installation

You might be shocked to discover there are subdivisions so affluent they can afford physical armed security and access control structures with far more invasive identification and logging procedures.

baggachipz•15m ago
I am not shocked to know that, but there are Flock cameras all over the town. None of the other ones have this advertisement on them. This neighborhood is not gated. However, Flock decided to do announce its presence only here.
AlBugdy•27m ago
Non-US citizens - what's the situation with cameras in public spaces where you live? In my town every 2nd hour or building entrance has a private camera pointed at the street. It's very depressing because the cops don't care - I've asked 2 in a patrol car when there was a mild case of vandalism I witnessed. Technically it's illegal, but nothing happens. The public cameras are on intersection and some bus stops. Too much, if you ask me, but the private cameras are everywhere.
mothballed•26m ago
Our city voted them out for awhile. So the feds just put them on every bit of federal property near roads, which ended up doing the exact same thing.
jcstryker•19m ago
And moving to the next vendor that hopefully does a better job of staying out of the public eye...
maerF0x0•18m ago
And switches to Axon - https://denverite.com/2026/02/24/denver-ends-flock-contract-...

I have not done any research if that's out of the frying pan and into the fire or an improvement

dfxm12•11m ago
Practically, axon cameras aren't nearly as ubiquitous as flock's, thus reducing the leo's dragnet capability. I'm sure the feds will successfully try to get access to this footage as well.
gosub100•5m ago
I don't know if axon does it, but the future is going to be mobile ALPRs. Uber drivers going around scanning every plate, selling to police, and helping predatory auto lenders repo cars. The latter is already being done, so it's just a matter of time.
gegtik•16m ago
Funny they are just trying to get this started in Toronto