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

https://openciv3.org/
632•klaussilveira•13h ago•187 comments

Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
20•theblazehen•2d ago•2 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
930•xnx•18h ago•548 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
34•helloplanets•4d ago•26 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
110•matheusalmeida•1d ago•28 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
43•videotopia•4d ago•1 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
10•kaonwarb•3d ago•10 comments

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

https://github.com/valdanylchuk/breezydemo
222•isitcontent•13h ago•25 comments

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

https://github.com/pydantic/monty
213•dmpetrov•13h ago•103 comments

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

https://vecti.com
323•vecti•15h ago•142 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
372•ostacke•19h ago•94 comments

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

https://github.com/microsoft/litebox
359•aktau•19h ago•181 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
478•todsacerdoti•21h ago•234 comments

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

https://eljojo.github.io/rememory/
275•eljojo•15h ago•164 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
404•lstoll•19h ago•273 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
85•quibono•4d ago•21 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
25•romes•4d ago•3 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
56•kmm•5d ago•3 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
16•jesperordrup•3h ago•9 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
245•i5heu•16h ago•189 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
13•bikenaga•3d ago•2 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
54•gfortaine•10h ago•22 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
141•vmatsiiako•18h ago•64 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
281•surprisetalk•3d ago•37 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/
1060•cdrnsf•22h ago•436 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
133•SerCe•9h ago•119 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
177•limoce•3d ago•96 comments

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

https://github.com/phreda4/r3
70•phreda4•12h ago•14 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...
28•gmays•8h ago•11 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
63•rescrv•20h ago•23 comments
Open in hackernews

Carnap – A formal logic framework for Haskell

https://carnap.io/
114•ravenical•1mo ago

Comments

throwaway4x4•1mo ago
Past experience in logical frameworks tend to specify documentclass: script, letter, report, etc.
keiferski•1mo ago
If you were wondering, the name comes from a famous philosopher and logician:

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

Pet_Ant•1mo ago
Thanks... you just ruined it.

I was so happy that finally that splendid slumber during transportation was finally getting the recognition it so richly deserves.

;)

keiferski•1mo ago
Ha, I’ve been familiar with Carnap for probably a decade and it took your comment for me to realize his name is Car Nap.
netdevphoenix•1mo ago
An Open Tower project. Copyright 2015-2024.

Doesn't look like it is been updated in a while. And the GitHub repos last commits are even older. Dead project?

LandR•1mo ago
Or maybe it's finished ?
mark_l_watson•1mo ago
+1

It seems to of had the web app portion updated a year ago. And as you say, the application itself looks ‘done.’

I have frequently used Common Lisp over the last 40 years, and I hear comments about libraries being old and not updated in many years: so what! Quality code that performs a specific function sometimes is ‘done.’

I am a novice Haskell programmer but I enjoy the language and it is very cool to have the Carnap github repo with a book manuscript, backend and front end code to look over.

benrutter•1mo ago
I think that's probably unlikely given the long list of universities using it[0].

It's an educational tool for formal propositional logic which hasn't really changed much on 100 years, so probably not a lot of updates are required unless there are big new updates to Haskell itself.

[0] https://carnap.io/about

imovie4•1mo ago
the list is also incomplete! I used carnap for intro logic and my college isn't there
ravenical•1mo ago
My university's course (how I found out about it) isn't there either - seems like it's mostly US-focused
gleachkr•1mo ago
Y'all want to email me? I'll see about updating the list.
gleachkr•1mo ago
Hey, Carnap creator here. Definitely not dead (still actively used by plenty of universities), but pretty stable these days.
cubefox•1mo ago
I don't like the trend of naming software projects after real people. It makes web search harder both for people who try to find the person and for people who try to find the project.
amelius•1mo ago
I don't like the trend of naming computer hardware after fruit.
ffuxlpff•1mo ago
I don't like naming things after other things. Names should be self explanatory or random codes.
Cheyana•1mo ago
Everything should just be in Zalgo text.
thih9•1mo ago
Instead of a single name an AI should dynamically generate the name that best represents the product’s current iteration. In Zalgo text.
cartucho1•1mo ago
For something similar, but in Python, I made this a while ago:

https://logics.readthedocs.io/en/latest/

GUI here:

https://taut-logic.com/

Cheyana•1mo ago
Oh I know what I'm doing on my lunch break today.
jonjacky•1mo ago
I, too, made something similar in Python -- but simpler and less polished:

https://jon-jacky.github.io/FLiP/www/

https://github.com/jon-jacky/FLiP/