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

https://openciv3.org/
529•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...
860•xnx•15h ago•519 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
72•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•79 comments

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

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

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
69•quibono•4d ago•13 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/
434•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•2 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
373•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/
220•i5heu•12h ago•162 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
91•SerCe•5h ago•75 comments

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

https://github.com/phreda4/r3
62•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•11 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

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

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
55•rescrv•17h ago•18 comments

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

https://docs.smooth.sh/cli/overview
83•antves•1d ago•60 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
Open in hackernews

Ccusage: A CLI tool for analyzing Claude Code usage from local JSONL files

https://github.com/ryoppippi/ccusage
75•kristianp•6mo ago

Comments

thebestmoshe•6mo ago
I really like how easy it is to run using bunx, pnpx, npx, etc.

But does anyone have thoughts on the security aspect. Getting people used to just running code like this that has full access to the system is slightly concerning.

On the other hand it’s no different than installing npm packages

simonw•6mo ago
Maybe this kind of thing would be better written in Deno?

Deno has mechanisms for allow-listing the exact files the process can access - in this case you would want to give it read-only access to the log files in the ~/.claude directory and nothing else.

ghuntley•6mo ago
> anyone have thoughts on the security aspect

Yes, you need to run these agents in a sandboxed environment when running full AFK [1] yolo. That could be a Docker container or it could be remote developer environment.

[1] https://ghuntley.com/ralph

pjm331•6mo ago
They are talking about the fact that you can run this npm tool without installing it - not running code agents
ghuntley•6mo ago
Ah, that's the least of their issues!
extr•6mo ago
Have been using this for awhile, I'm on the $100/mo Max plan and have been running $600-800/mo in terms of usage, and I'm hardly pushing it to the limits (missing lots of billing windows).

It makes me wonder what Anthropic's true margins are. I could believe they are overcharging via the API, Sonnet is $3/$15/Mtok and Opus at an ABSURD $15/$75/Mtok. But to break even for me, that would mean that they're overcharging by a factor 5x-10x, which doesn't seem possible. Is the music going to stop for Claude Code the same way it did for Cursor? I have to imagine every incentive in the world is pushing them to lower inference cost rather than introduce stricter limits, and unlike Cursor they can actually can reach into their stack and do this. But I'm not sure they're capable of miracles.

Regardless, I'm bullish Anthropic. Sonnet and Opus don't benchmark as well as O3/Grok4 at pure coding, and aren't as cheap as Kimi K2 for theoretically similar perf, but as any user knows they are top tier at instruction following, highly reliable and predictable, and have a certain intangible theory of mind that is unique to Anthropic.

wyldfire•6mo ago
> Sonnet and Opus don't benchmark as well as O3/Grok4 at pure coding

Do any of the others have a "claude code" local agent? Seems like a big gap IMO. Though, it should be pretty easy for them to close that gap.

I don't usually take too many moral stances but I feel like I can't use Grok. It's bad enough Musk did his Nazi salute but his AI product itself is a Nazi too? It might be good at coding but I really can't stomach using it.

sothatsit•6mo ago
FWIW, people report that Grok 4 is not very good at coding, and xAI admit this themselves when they said they will be releasing a separate coding model in "the next few weeks".

Also, Google does have Gemini CLI, OpenAI does have Codex CLI, and then there is Aider which can support any model. I think the big difference is that Anthropic's models are the best for this use-case right now, and Anthropic has the Max plan which makes a massive difference to the cost of using Claude Code compared to competitors (although the Gemini CLI has insane free tiers).

I'm not sure how this will play out in the future, because it seems to me that Claude Code does not have much of a moat beyond Anthropic having the best coding models right now, and them offering model usage at heavily discounted prices.

ghuntley•6mo ago
> people report that Grok 4 is not very good at coding

There are agentic models and oracle models. It can be modelled on a four-way quadrant of agent vs oracle and high safety vs low safety.

https://ghuntley.com/cars

Grok is oracle and low safety.

theshrike79•6mo ago
Grok4 is pretty decent at planning and figuring out libraries and APIs.

For code it falls down past simple scripts and utilities.

perfmode•6mo ago
perhaps there are enough inactive subscribers to compensate for the heavy users.
buremba•6mo ago
I doubt that there are many inactive subscribers, as Claude Code / Max Plan is relatively new. They might be hoping that way in a couple of months, though.
Aeolun•6mo ago
I used it really heavily for a few days, but now I just don’t have the time to send much instructions. Still used on the order of $1000 in the first month, but imagine it will go down as time goes on. CC is so convenient I think I’d have a hard time living without it though
sothatsit•6mo ago
> but as any user knows they are top tier at instruction following, highly reliable and predictable

This is spot on. Reliability is really the #1 priority for me when it comes to coding agents, and Sonnet, and especially Opus, really deliver on it. It makes such a huge difference when it comes to agents. Anthropic really nailed it on this.

My process has become: get Opus to generate a plan, use o3 to help me review the plan, and then get Opus to implement the plan. This works extremely well for me, and is the first time where I've felt AI being actually useful for coding anything more than small prototypes.

buremba•6mo ago
How do you switch to o3 to review the plan?
drakenot•6mo ago
Have CC output a plan.md file.
extr•6mo ago
Personally, I use Repoprompt for this + deeper context integration.
sothatsit•6mo ago
I have a workflow that tells Claude Code to generate a planning markdown document: https://gist.github.com/Sothatsit/c9fcbcb50445ebb6f367b0a6ca...
shmoogy•6mo ago
I use zenMCP to collaborate with opus
swyx•6mo ago
any dropoff in usage limits for you recently? https://techcrunch.com/2025/07/17/anthropic-tightens-usage-l...

cant help but think that you guys yelling about it so loudly from the rooftops is really really not helping your case lol

core-utility•6mo ago
I started on the Pro plan a week ago and was already contemplating jumping to Max. When I hit a limit yesterday I upgraded to Max and hit a limit again before seeing the news of the changed usage limit.

For what it's worth, everything seems fixed today.

ghuntley•6mo ago
Exactly, swyx. Any flat rate pricing plan is effectively a bet against the future. It's a grab for engineers that's subsidised. Now, the problem is that GPUs are expensive; they are a costly resource to use. Inferencing is expensive.

So what happens is inevitable:

- Wild promises of unlimited usage and consumers feeling tricked when the impossible is impossible to deliver (Cursor pricing changes).

- Quasi-unlimited usage with rate-caps, but the models get quantised to all hell? [search Twitter for folks reporting Claude feels dumber around/near outages].

- Engineers sharing tools and techniques on how to squeeze pounds out of a flat-rate plan (original post), which results in more power users doing that, which puts more pressure on margins.

In goose meme format, "What are the margins?"

https://x.com/GeoffreyHuntley/status/1945636266009399414

kristianp•6mo ago
> Any flat rate pricing plan is effectively a bet against the future

How quickly we forget Moore's law, or at least what has replaced Moore's law.

extr•6mo ago
People have been saying this since it first came out. I don’t doubt there are occasional bugs/service disruptions but personally I really doubt Anthropic is silently decreasing the limits.
nidnogg•6mo ago
What do you mean by music stopping for Cursor? Almost every single developer I run into is transitioning/transitioned to it today. It's stinks like the new VS Code.
ghuntley•6mo ago
There's a predictable journey: people start with Cursor when they are new to AI, and quickly move on to something more powerful once they realise that the IDE [1] is holding em back and that forking VSCode is [2][3] tech-debt.

[1] https://ghuntley.com/overton

[2] https://ghuntley.com/fracture

[3] https://ghuntley.com/amazon-kiro-source-code/

extr•6mo ago
Their pricing change recently has people reaching for alternatives.
jmaker•6mo ago
> but as any user knows they are top tier at instruction following, highly reliable and predictable, and have a certain intangible theory of mind that is unique to Anthropic.

I’m not such an “any user” as in my experience they are exceptionally terrible at following my instructions and cutting edges whenever they like, I have to iteratively get more and more specific at what they should not do, all the time trying to predict their misbehavior. To then see a certain point or a threshold at which they throw my instructions out the window to match and reproduce the very things or patterns I wanted to avoid and likewise with the things and patterns I explicitly instructed them to use or apply.

Very unreliable.

> have a certain intangible theory of mind that is unique to Anthropic.

That’s quite poetic.

ryoppippi•6mo ago
I'm the author of ccusage. Thank you for sharing! Also please refer our website. https://ccusage.com