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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
528•klaussilveira•9h ago•146 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
859•xnx•15h ago•517 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
71•matheusalmeida•1d ago•13 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
180•isitcontent•9h ago•21 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
182•dmpetrov•10h ago•78 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
292•vecti•11h ago•130 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
68•quibono•4d ago•12 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
343•aktau•16h ago•168 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
338•ostacke•15h ago•90 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
432•todsacerdoti•17h ago•226 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
237•eljojo•12h ago•147 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
13•romes•4d ago•1 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
372•lstoll•16h ago•252 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
6•videotopia•3d ago•0 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
41•kmm•4d ago•3 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
14•denuoweb•1d ago•2 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
219•i5heu•12h ago•162 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
90•SerCe•5h ago•76 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
61•phreda4•9h ago•11 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
162•limoce•3d ago•82 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
38•gfortaine•7h ago•10 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
18•gmays•4h ago•2 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
127•vmatsiiako•14h ago•53 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
261•surprisetalk•3d ago•35 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1029•cdrnsf•19h ago•428 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
54•rescrv•17h ago•18 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
18•denysonique•6h ago•2 comments

Zlob.h 100% POSIX and glibc compatible globbing lib that is faste and better

https://github.com/dmtrKovalenko/zlob
5•neogoose•2h ago•1 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
109•ray__•6h ago•54 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
44•lebovic•1d ago•14 comments
Open in hackernews

Playing Arcade Mahjong at Home? Or is it just a Mirage?

https://nicole.express/2026/put-your-clothes-back-on.html
22•nicole_express•3w ago

Comments

bigstrat2003•3w ago
Despite the author (quite correctly) saying that explanations of riichi mahjong tend to sound like Calvinball, I highly recommend people learn the game if you have some time. There are some good videos on youtube going through it (they are long!), but once you learn how to play it's a ton of fun. A good mix of luck and strategy, and tiles are fun to play with (if you're playing in person).
GolDDranks•3w ago
Agreed! I've been playing both offline and in the web client Jantama / Mahjong Soul. Not too far from getting into the gold room.

One of my New Year's resolutions for this year is that I try and go playing in a mahjong parlor for the first time in my life. Still trying to get a bit better before going there.

nicole_express•3w ago
The big thing that holds me off from playing in person is scoring; for the life of me I really struggle with the fu calculation.

I guess the solution to that is only win big hands, but that's its own problem :)

GolDDranks•3w ago
It helps if you think that there are only three kinds of hands:

- 25 fu hand (chiitoitsu) 16 / 32 / 64

- 30 fu hands: 10 / 20 / 39 / 58

- 40 fu hands (especially toitoi, but also some others with koutsu's) 13 / 26 / 52

As long as you don't have any kans (and you mostly shouldn't call those), the others are a rounding error.

Kuraj•3w ago
The hardest part of IRL play for me has been actually getting 4 people who know how to play the game in a single room lol
tialaramex•3w ago
I rather enjoy Mahjong - the actual game, played in person even - and so it's a continuing mild disappointment that so often when a thing says "Mahjong" it's actually just tile matching, or a porn game, or in some cases both.

I played a decent video game rendition of the actual Mayjong - not tile matching, nobody gets their tits out, it matters whether you're actually any good at it - in the 1980s but I had no idea this wasn't a common thing, so I don't even remember the name of the software.

dole•3w ago
I’ll guess the computer at the bottom is an NEC PC-98/9801.
wodenokoto•3w ago
What is this supergun the author keeps talking about?
kmeisthax•3w ago
"Supergun" is a term for an adapter intended to allow JAMMA-compatible arcade boards to be used with standard home video equipment. Normally, you'd need an arcade cabinet with a JAMMA port, compatible arcade-RGB display, and all the wiring harnesses behind it, but that is a space hog and most people don't want one in their house.
bsammon•3w ago
If the sibling comment isn't enough detail, see https://en.wikipedia.org/wiki/SuperGun
nicole_express•3w ago
Fair enough, I guess I'm assuming too much knowledge-- a supergun is just a device designed to take a JAMMA arcade connector and provide everything an arcade cabinet would do for a home setup. (i.e., provide video output, some sort of game controller input, bring audio levels down from amplified JAMMA to line level)

I've talked about playing arcade boards at home on the blog so often I sometimes forget to be more accommodating to new readers.