HN Buddy

Daily digest of top Hacker News posts and comments

Subscribe to the HN Buddy Daily Digest

Your email will only be used for the HN Buddy Daily Digest. I will not share it with anyone.

HN Buddy Daily Digest

Wednesday, January 21, 2026

Hey buddy,

Man, you won't believe some of the stuff from Hacker News yesterday, Wednesday. Lemme give you the quick rundown.

EU Legal Entity Thingy

First up, there's this new thing called EU–INC. It's a new pan-European legal entity. Basically, it's supposed to make it way easier for companies to operate across the whole EU without jumping through a million hoops in each country. People in the comments were saying it could seriously simplify stuff like shutting down a company, which is apparently a nightmare in places like Germany. It's all about cutting down on that crazy amount of bilateral agreements needed between countries.

Anthropic's Tricky Take-Home Test

Then, Anthropic, you know, the AI company, open-sourced one of their old take-home assignments. And man, did it stir things up! People were pretty annoyed because the test apparently forced an "anti-pattern" – making you calculate stuff at runtime that should just be pre-computed because the data is static. One person even said they withdrew their application over it! Also, there was a lot of talk about how many newer web developers might not even know plain JavaScript well enough for something like this.

Crazy Fast Charts with ChartGPU

Check this out, someone did a Show HN for ChartGPU. It's a new charting library that uses WebGPU, and it's ridiculously fast. We're talking 1 million data points at 60 frames per second! The creator even updated it to handle 5 million candles at over 100 FPS. Super impressive for anyone dealing with big data visualizations.

Claude's "Constitution"

Speaking of Anthropic, their AI, Claude, got a "new constitution" – basically, a set of ethical rules. But people in the comments were pretty skeptical. They were pointing out how easy it's been to "jailbreak" these AI models in the past for NSFW stuff, and wondering if this is really going to make a difference or just look good on paper.

cURL Drops Bug Bounties

This was interesting: the popular cURL project removed its bug bounties. The gist is that they were getting a lot of low-quality or even AI-generated reports that weren't real security issues, just people trying to grab some cash. It sounds like a headache for open-source maintainers, dealing with more noise than actual help.

Vimeo Got Gutted by Bending Spoons

Big news in the tech world: Bending Spoons laid off almost everyone at Vimeo. It sounds like Bending Spoons is known for this "Musk model" of acquiring companies and then just stripping them down to the absolute bare minimum to cut costs and make a profit. Pretty brutal for the Vimeo folks.

Regrowing Cartilage!

And finally, on a totally different note, some scientists found a way to regrow cartilage in mice and human tissue samples! How cool is that? This could be huge for people with joint problems, like bad knees. Everyone in the comments was super excited, naturally, wondering when it'll be available for humans.

Anyway, that's the quick and dirty. Talk later!

All Stories from Today

EU–INC – A new pan-European legal entity (www.eu-inc.org)

Anthropic's original take home assignment open sourced (github.com)

Show HN: ChartGPU – WebGPU-powered charting library (1M points at 60fps) (github.com)

Claude's new constitution (www.anthropic.com)

cURL removes bug bounties (etn.se)

Skip is now free and open source (skip.dev)

Tell HN: Bending Spoons laid off almost everybody at Vimeo yesterday (news.ycombinator.com)

Linux from Scratch (www.linuxfromscratch.org)

How AI destroys institutions (cyberlaw.stanford.edu)

Waiting for dawn in search: Search index, Google rulings and impact on Kagi (blog.kagi.com)

Scientists find a way to regrow cartilage in mice and human tissue samples (www.sciencedaily.com)

SETI@home is in hiberation (setiathome.berkeley.edu)

Stories removed from the Hacker News Front Page, updated in real time (2024) (github.com)

RSS.Social – the latest and best from small sites across the web (rss.social)

Nested code fences in Markdown (susam.net)

Ireland wants to give its cops spyware, ability to crack encrypted messages (www.theregister.com)

Can you slim macOS down? (eclecticlight.co)

The percentage of Show HN posts is increasing, but their scores are decreasing (snubi.net)

The Agentic AI Handbook: Production-Ready Patterns (www.nibzard.com)

Swedish Alecta has sold off an estimated $8B of US Treasury Bonds (www.di.se)

Show HN: Sweep, Open-weights 1.5B model for next-edit autocomplete (huggingface.co)

JPEG XL Test Page (tildeweb.nl)

SmartOS (docs.smartos.org)

Show HN: Rails UI (railsui.com)

I made Zig compute 33M satellite positions in 3 seconds (atempleton.bearblog.dev)

Disaster planning for regular folks (2015) (lcamtuf.coredump.cx)

Canada Announces Divorce from America (charlotteclymer.substack.com)

Convert potentially dangerous PDFs to safe PDFs (github.com)

Parliament tells Dutch government to keep DigiD data out of American hands (nltimes.nl)

Vibecoding #2 (matklad.github.io)