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

https://openciv3.org/
486•klaussilveira•7h ago•130 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
824•xnx•13h ago•494 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
46•matheusalmeida•1d ago•5 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/
103•jnord•3d ago•14 comments

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

https://github.com/pydantic/monty
159•dmpetrov•8h ago•72 comments

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

https://github.com/valdanylchuk/breezydemo
162•isitcontent•8h ago•18 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
56•quibono•4d ago•8 comments

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

https://eljojo.github.io/rememory/
215•eljojo•10h ago•136 comments

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

https://vecti.com
267•vecti•10h ago•126 comments

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

https://github.com/microsoft/litebox
334•aktau•14h ago•161 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
329•ostacke•13h ago•87 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
31•kmm•4d ago•1 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
417•todsacerdoti•15h ago•220 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
7•denuoweb•1d ago•0 comments

Delimited Continuations vs. Lwt for Threads

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

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
348•lstoll•14h ago•245 comments

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

https://github.com/phreda4/r3
55•phreda4•7h ago•9 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
205•i5heu•10h ago•149 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
117•vmatsiiako•12h ago•41 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
30•gfortaine•5h ago•4 comments

Learning from context is harder than we thought

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

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
254•surprisetalk•3d ago•32 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/
1008•cdrnsf•17h ago•421 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
50•rescrv•15h ago•17 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...
11•gmays•2h 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
82•ray__•4h ago•40 comments

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

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

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

https://docs.smooth.sh/cli/overview
78•antves•1d ago•59 comments

How virtual textures work

https://www.shlom.dev/articles/how-virtual-textures-really-work/
32•betamark•15h ago•28 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
41•nwparker•1d ago•11 comments
Open in hackernews

Show HN: Typed-arrow – compile‑time Arrow schemas for Rust

https://github.com/tonbo-io/typed-arrow
48•ethegwo•5mo ago
Hi community, we just released https://github.com/tonbo-io/typed-arrow.

When working with arrow-rs, we noticed that schemas are declared at runtime. This often leads to runtime errors and makes development less safe.

typed-arrow takes a different approach:

- Schemas are declared at compile time with Rust’s type system.

- This eliminates runtime schema errors.

- And introduces no runtime overhead — everything is checked and generated by the compiler.

If you’ve run into Arrow runtime schema issues, and your schema is stable (not defined or switched at runtime), this project might be useful.

Comments

ddoolin•5mo ago
I had no idea what Arrow is: https://arrow.apache.org or arrow-rs: https://github.com/apache/arrow-rs
aurumque•5mo ago
I congratulate you. This is a clever extension of a great framework.
ratmice•5mo ago
Cool, curious if there is any willingness or interest in adding a geoarrow feature, or generally some form of integration with that crate? (Though to be honest I'm not currently clear up to date on the stability/usability of geoarrow at this current point in time)
ethegwo•5mo ago
Sure I'd love to, could you share your practice or what you are doing on top of Parquet?
ratmice•5mo ago
My project hasn't really gotten to the level of actually exporting data to any database yet, but basically I'm just using standard openstreetmap data exported to geoparquet format.

That is then combined with a bunch of time series sensor readings combined with a gps data, (I'm basically still working on the device firmware so I don't have any actual data export happening yet)...

But it is a pretty basic combination of timeseries and geospatial data.

pgwhalen•5mo ago
I'm pretty deep into the arrow ecosystem and have been dreaming about something like this for a while now. Nice to see!

I'm also imagining what this would look like in other languages (Java, Go, Python) - you can't do as much at compile time of course, but there are still marginal improvements to be made over the dynamism of the standard arrow libraries, when the use case benefits from it.

aldanor•5mo ago
How is this different from https://github.com/Swoorup/arrow-convert?
ethegwo•5mo ago
typed-arrow avoids any kinds of runtime side effects: cost, errors, etc.