Aerodynamic drag in small cyclist formations: shielding the protected rider [pdf]
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Playing with Open Source LLMs
Every 6 months or so, I decide to leave my cave and check out what the cool kids are doing with AI. Apparently the latest trend is to use fancy command line tools to write code using LLMs. This is a very nice change, since it suddenly makes AI compatible with my allergy to getting […]
A month using XMPP (using Snikket) for every call and chat
For the last month, I’ve been using XMPP (using Snikket) for every call and chat between me and my wife Sandra, at least. Sandra and I switched from using Matrix to using XMPP a while back. Matrix was pretty good for messaging, although quite a few encryption-related issues, but it – or my installation of […]
Show HN: A GitHub Action that quizzes you on a pull request
AI Agents are starting to write more code. How do we make sure we understand what they’re writing? PR Quiz is a GitHub Action that uses AI to generate a quiz based on a pull request. It can help you, the human reviewer, test your understanding of your AI Agent’s code. (And block you from […]
Programmers aren’t so humble anymore, maybe because nobody codes in Perl
Perl was once everywhere. Or at least it felt that way. Around the turn of the millennium, it seemed that almost every website was built on the back of this scripting language. It processed massive amounts of text—mechanisms for doing this powerfully and easily were part of the language—and it was even used in bioinformatics, […]
ACM Transitions to Full Open Access
ACM’s Transition to Full Open Access: A New Era for Computing Research For more than seven decades, ACM has played a pivotal role in advancing computing research, fostering collaboration, and disseminating knowledge through its world-class Digital Library, influential publications, and premier conferences. In a significant step to broadening access to computing research, ACM is transitioning […]
PAX Markets (YC W25) is hiring a founding principal hardware (RTL) engineer
What you’ll do: As founding principal hardware engineer, you will lead the design and in-production implementation of an exchange and co-located trading facility on a single silicon device. You will lead development of PAX core technology and set future design directions including implementation of an ultra-low latency 𝛼 (ML based price prediction) published in-sync with […]
Learning Basic Electronics by Building FireFlies
Disclaimer: this post is written in a raw, unstructured, real-time format and celebrates small wins, honest mistakes, and the messy process of learning and building. It’s not the ultimate guide – just what worked for me, shared as-is. If you like seeing how things break and get fixed, you’re in the right place! I love […]
Launch HN: Hyprnote (YC S25) – An open-source AI meeting notetaker
Hi HN! We’re Yujong, John, Duck, and Sung from Hyprnote (https://hyprnote.com). We’re building an open-source, privacy-first AI note-taking app that runs fully on-device. Think of it as an open-source Granola. No Zoom bots, no cloud APIs, no data ever leaves your machine. Source code: https://github.com/fastrepl/hyprnote Demo video: https://hyprnote.com/demo We built Hyprnote because some of our […]
The Convenience Trap: Why Seamless Banking Access Can Turn 2FA into 1FA
Multi-factor authentication (MFA) is the bedrock of modern digital security. Its principle is simple and powerful. As Wikipedia defines it, MFA is: an electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more distinct types of evidence (or factors) to an authentication mechanism. […]