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Show HN: type-kanren – type-level microKanren in TypeScript

https://github.com/eduhenke/type-kanren
1•eduhenke•2m ago•0 comments

I made an Excel add-in to diff sheets and check changes

https://github.com/pipedreamerai/SheetHappens
1•randomness3249•3m ago•1 comments

Show HN: Sharplink Gaming Stock Dashboard

https://sbet.rocks/
1•spacesh1psoda•5m ago•0 comments

Meta receives 48 hour warning over illicit gambling ads in Brazil

https://readwrite.com/meta-legal-warning-illegal-gambling-ads-brazil/
1•dotcoma•5m ago•0 comments

Wokwi: Most Advanced ESP32 Simulator

https://wokwi.com/
1•pykello•6m ago•0 comments

Show HN: Piclabs AI:Ad Maker Easy Creative Ads

https://www.piclabs.org/
1•rooty_ship•8m ago•0 comments

Show HN: Bsdloader – Minimal (~123KB), reproducible x86_64 FreeBSD UEFI loader

https://github.com/losfair/bsdloader
1•losfair•9m ago•0 comments

Apple Website from Start to Present

https://twitter.com/TheAppleDesign/status/1958938747866947922
1•ksec•10m ago•0 comments

Permacomputing 101 [video]

https://www.youtube.com/watch?v=BNYxAdjl1f0
1•surprisetalk•17m ago•0 comments

Minnesota Attorney General sues TikTok for 'preying on Minnesota young people'

https://www.mprnews.org/story/2025/08/19/minnesota-attorney-general-sues-tiktok-for-preying-on-minnesota-young-people
1•dotcoma•18m ago•0 comments

Developer Trust making SuperDevPro more grow

https://superdevpro.com
1•M0HD197•19m ago•0 comments

I grew my product from 0 to 1k users – here are 5 things I learned

1•zy5a59•23m ago•0 comments

Two laptops, six plugs:The South Korean cafes grappling students who dont leave

https://www.bbc.com/news/articles/c80d9e8ep7do
2•rakeshb03•23m ago•0 comments

The Pursuit of Life Where It Seems Unimaginable

https://www.quantamagazine.org/the-pursuit-of-life-where-it-seems-unimaginable-20250820/
1•tzury•34m ago•0 comments

Websites and web developers mostly don't care about client-side problems

https://utcc.utoronto.ca/~cks/space/blog/web/WebsitesDontCareAboutClients
2•zdw•35m ago•0 comments

Apple Watch designs allegedly stolen and provided to Oppo

https://appleinsider.com/articles/25/08/22/apple-watch-designs-allegedly-stolen-and-provided-to-oppo
1•bundie•35m ago•1 comments

Nvidia halts China-focused H20 AI chip after Beijing flags security risks

https://www.reuters.com/world/china/nvidia-orders-suppliers-halt-work-china-focussed-h20-ai-chip-information-says-2025-08-22/
2•acossta•37m ago•1 comments

Show HN: RipBroker – Find Flats and Flatmates Nearby You

https://ripbroker.com/about-us
1•devaldpatel•37m ago•0 comments

Good news for KDE users: Plasma 6.5 will launch with a new OOBE wizard

https://www.neowin.net/news/good-news-for-kde-users-plasma-65-will-launch-with-a-new-oobe-wizard/
1•bundie•38m ago•0 comments

The design decisions Anthropic made when designing Claude Code

https://old.reddit.com/r/ClaudeCode/comments/1mwi1jq/what_claude_code_does_differently_inside_its/
1•ppsreejith•43m ago•0 comments

Cheap RL tasks will waste compute

https://www.mechanize.work/blog/cheap-rl-tasks-will-waste-compute/
1•vinhnx•46m ago•0 comments

Show HN: AgentState – Lightweight state manager for multi-agent AI workflows

https://github.com/ayushmi/agentstate
2•boulevard•47m ago•0 comments

Learning Curves of TypeScript

https://www.samjarman.co.nz/blog/learning-typescript
1•_samjarman•47m ago•0 comments

AI Is in a Weird Spot

https://www.samjarman.co.nz/blog/ai-august-25
1•_samjarman•48m ago•0 comments

Train robots with Pi0, Lerobot and human pose motion retargeting

https://github.com/rerun-io/pi0-lerobot
1•Tycho87•52m ago•0 comments

Is it illegal to not buy ads on X? Experts explain the FTC's ad fight

https://arstechnica.com/tech-policy/2025/08/is-it-illegal-to-not-buy-ads-on-x-experts-explain-the-ftcs-bizarre-ad-fight/
3•pseudolus•54m ago•1 comments

Show HN: Ccoutputstyles – Shareable output styles for Claude Code

https://ccoutputstyles.vercel.app
1•virtuallyvivek•57m ago•0 comments

How Jane Street Does Code Review

https://www.janestreet.com/tech-talks/janestreet-code-review/
2•dgs_sgd•1h ago•0 comments

Habitual fluid intake influences cortisol reactivity to psychosocial stress

https://journals.physiology.org/doi/abs/10.1152/japplphysiol.00408.2025
3•pizza•1h ago•0 comments

Migrating an EOL Ubuntu 20.04 server to Debian Trixie with minimal downtime

https://infosec.space/@siguza/115076082051843055
1•tech234a•1h ago•0 comments
Open in hackernews

South Korea deploys hologram police officer

https://www.scmp.com/week-asia/lifestyle-culture/article/3322654/south-korea-deploys-hologram-police-officer-fight-crime-and-its-working
24•amichail•5h ago

Comments

PaulHoule•5h ago
This has to be something like Pepper's Ghost right?

https://en.wikipedia.org/wiki/Pepper%27s_ghost

crooked-v•4h ago
From the photo, I would bet it's a projection onto a person-shaped glass or plastic standee, maybe with some texturing and projection mapping to add a "3D" effect.
trenchpilgrim•2h ago
There's a video; It's literally just a projector pointed at a flat human shaped board
canpan•4h ago
Staff helps! I had this thought today taking the train here in Japan, why I feel safe compared to other countries. Every station is staffed with a real person. Most trains have at least two people in them. One driver and a second staff announcing and checking doors. The staff is clearly visible and in uniform. I know Japans base safety level is higher than the rest of the world. But I think putting trained staff in uniform on display would improve the situation everywhere.
adikso•2h ago
I don't live in Japan, but I don't remember being in a train where there wouldn't be at least two people from the staff in uniforms. Could you explain what you have in mind? Are there trains without drivers or without people checking tickets?
Fire-Dragon-DoL•1h ago
The skytrain in Vancouver, Canada, has nobody from staff and it's fully automated. Really cool.
a012•4h ago
It’s working because:

> people were too scared to enter a park with a “ghost police officer”

esafak•3h ago
A scarecrow for humans.
gus_massa•4h ago
> It pops up every two minutes to deliver a pre-recorded audio message reminding passers-by that they are being watched by security cameras

Was the reduction of crime caused by the image or by the cameras?

olyjohn•2h ago
Or was it because it attracted more people to the area, making criminals less likely to hang around?
pizzly•3h ago
I can imagine cameras connected to AI. AI detects crime in action (beating or something) and initiates the hologram which says cease now the police are coming . Might prevent a a crime from becoming bigger.
makeitdouble•3h ago
The article has no mention of how the crime rate is going outside of the park...is there good sources on the subject ?

Looking around, Numbeo keeps an index every year, and for South Korea in general it went from 25.5 to 24.9 for 2023->2024, with a general downward trend since 2021.

Cute story, but looks like crime rate is going down more broadly ?

https://www.numbeo.com/crime/rankings_by_country.jsp?title=2...

https://www.numbeo.com/crime/rankings_by_country.jsp?title=2...

zipping1549•29m ago
From a South Korean news article (translated using llm):

> The police installed human-sized holograms in this park last October. The videos played daily from 7 PM to 10 PM. Analyzing crime occurrences for eight months until May of this year, it was found that the number of major crimes (murder, robbery, rape, theft, violence) within the park's radius decreased by about 22% compared to the same period before the installation (October 2023 to May 2024). This park was a place with frequent reports due to drinking, alcohol-related violence, and disturbances.

zdw•3h ago
How long before we get a K-drama where some lonely single falls in love with the hologram?
deepfriedchokes•3h ago
netflix-greenlit.meme
hereme888•3h ago
An owl, but for criminals.
jameslk•2h ago
I wasn’t aware we had suddenly mastered the physics for holograms (I was envisioning something Star Wars esque) but there was no linked video so I looked it up:

https://youtu.be/Sj2Rl4SOJe8

This looks more like a… projection? Not exactly my Star Wars fantasy

DonHopkins•1h ago
Schiphol Airport in Amsterdam was having staff shortage problems a few years ago, so they deployed holographic security guards that didn't threaten strikes. The only problem was that people would try to put their arms through real security guards. ;)

https://speld.nl/2022/05/31/schiphol-zet-hologrammen-in-van-...