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

https://openciv3.org/
426•klaussilveira•5h ago•97 comments

Hello world does not compile

https://github.com/anthropics/claudes-c-compiler/issues/1
21•mfiguiere•42m ago•8 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
775•xnx•11h ago•472 comments

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

https://github.com/valdanylchuk/breezydemo
142•isitcontent•6h ago•15 comments

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

https://github.com/pydantic/monty
135•dmpetrov•6h ago•57 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
41•quibono•4d ago•3 comments

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

https://vecti.com
246•vecti•8h ago•117 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
70•jnord•3d ago•4 comments

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

https://eljojo.github.io/rememory/
180•eljojo•8h ago•124 comments

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

https://github.com/microsoft/litebox
314•aktau•12h ago•154 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
12•matheusalmeida•1d ago•0 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
311•ostacke•12h ago•85 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
397•todsacerdoti•13h ago•217 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
322•lstoll•12h ago•233 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
12•kmm•4d ago•0 comments

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

https://github.com/phreda4/r3
48•phreda4•5h ago•8 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
109•vmatsiiako•11h ago•34 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
186•i5heu•8h ago•129 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
236•surprisetalk•3d ago•31 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/
976•cdrnsf•15h ago•415 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
144•limoce•3d ago•79 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
17•gfortaine•3h ago•2 comments

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

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
49•ray__•2h ago•11 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
41•rescrv•13h ago•17 comments

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

https://red.anthropic.com/2026/zero-days/
35•lebovic•1d ago•11 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
52•SerCe•2h ago•42 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
77•antves•1d ago•57 comments

The Oklahoma Architect Who Turned Kitsch into Art

https://www.bloomberg.com/news/features/2026-01-31/oklahoma-architect-bruce-goff-s-wild-home-desi...
18•MarlonPro•3d ago•4 comments

Claude Composer

https://www.josh.ing/blog/claude-composer
108•coloneltcb•2d ago•71 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
39•nwparker•1d ago•10 comments
Open in hackernews

Building a Robot Dog (with an airsoft gun)

https://erikschluntz.com/hardware/2025/10/26/robot-dog.html
48•eschluntz•3mo ago

Comments

eschluntz•3mo ago
Blog post about my mechanical design, robot math, stress testing, and competition for "Mech Warfare", a small airsoft-only battlebots competition this summer
gertlex•3mo ago
OP getting this robot working in about 3 months was insanely impressive.

- guy whose back yard the scrimmages took place in

oidar•3mo ago
what is the no gimmicks rule?
gertlex•3mo ago
I can't quote it offhand, but it's stuff like:

- Don't stick your camera on an arm and poke it around corners to see the opponent

- No detachable parts? It's more nuanced than this. Not leaving "mines" I think is a case of this.

Basically there's a few goals to the rules (this has been an on and off competition for about 15 years now): keep the spirit of "pilots in giant mech robots" (loosely 90s era stuff), and homogenize the competition slightly for competitiveness.

Melee is still allowed! If you walk into the other robot and trigger one of their 4 score panels, that still counts.

It's a hard competition to prep for. Numerous bespoke HW subsystems, software, budgets that grow quickly with the size/weight of your bot... and being reliable.

djmips•3mo ago
Excellent write-up. This is one of those side projects that has been on my list since forever and this seems about the level of accomplishment and tech that is within reach. Good effort! I'm looking forward to further refinements.
eschluntz•3mo ago
Thanks!
apeters•3mo ago
* Z3l3nsky joined #mechwar

* Z3l3nsky slaps eschluntz around a bit with a large trout

<Z3l3nsky> @eschluntz pm

That happened.

GenericDev•3mo ago
I absolutely hate this. Great to the OP for amazing work, but I am so sad that we're living Black Mirror dog world instead of Star Trek equality world.

There needs to be a new word for when you're impressed, but so depressed at what is being achieved.

flemhans•3mo ago
Any plans to release the files or a build guide?
eschluntz•3mo ago
Yeah if there's more interest I can publish the GH and onshape! I just need to sanity check that I didn't leave any keys in it or anything...
gertlex•3mo ago
Having had a chance to read more of the blog now, maybe the most pleasing part is your similar discovery of, "I'm writing my own kinematics, and generating plots of it is the fastest validation of that code". I did similar matplotlib plots of my quad (spider) leg movements years ago. Definitely need to do more of that when I finally revisit the software on my mech from 2019 with AI help :).

And more generally, yeah, having the AI manage some of those plotting needs will be fantastic in other work too; I enjoy figuring out what to plot, and don't mind wrangling and hand-refactoring said scripts... but it's so time consuming historically, and there's always the itch to urgency to get back to the "main code". (at least I learned to gradually convince peers that often plot scripts should be commitable without being polished; they're a form of documentation sometimes!)

aspenmayer•3mo ago
https://archive.is/yLyTl

https://web.archive.org/web/20251030055726/https://erikschlu...