How uv got so fast
The article explores the rapid advancements in ultraviolet (UV) technology, including the development of high-power and energy-efficient UV LED systems. It discusses the key innovations and technological breakthroughs that have enabled these improvements in UV performance and availability.
QNX Self-Hosted Developer Desktop
The article announces the initial release of the QNX Self-Hosted Developer Desktop, a development environment for building and testing QNX-based systems on a Linux host computer. The release provides a container-based solution for developers to access the QNX development tools and runtime environments more easily.
Always Bet on Text
The article discusses the challenges of building large-scale software systems and the importance of balancing technical debt, complexity, and pragmatism. It emphasizes the need for a systematic approach to software development that prioritizes maintainability, resilience, and long-term sustainability.
T-Ruby is Ruby with syntax for types
The article introduces Type Ruby, a statically-typed superset of Ruby that aims to provide a more robust and type-safe programming experience while maintaining compatibility with the Ruby language.
Experts explore new mushroom which causes fairytale-like hallucinations
Researchers have discovered a new species of mushroom that can induce vivid, fantastical hallucinations in users, similar to scenes from fairy tales and fantasy stories. The article explores the potential therapeutic applications of this psychoactive mushroom, as well as the challenges in studying and regulating its use.
The Best Things and Stuff of 2025
How Lewis Carroll computed determinants (2023)
This article explores the mathematical work of Lewis Carroll, focusing on his contributions to the study of determinants. It discusses how Carroll's interest in logic and puzzles led him to develop innovative approaches to understanding determinants, which are important concepts in linear algebra.
One million (small web) screenshots
This article discusses the author's experience with creating small web screenshots, focusing on the tools and techniques used to capture high-quality images of web pages in a compact format.
Package managers keep using Git as a database, it never works out
The article discusses the use of Git as a database by package managers, highlighting the challenges and limitations of this approach, as well as exploring alternative solutions that could better address the needs of modern software development.
Publishing your work increases your luck
This guide provides practical advice for publishing your work on GitHub, covering topics such as creating a README file, licensing your project, and promoting your work to the open-source community.
Show HN: Witr – Explain why a process is running on your Linux system
Hi HN,
I built a small Linux CLI tool called witr (Why Is This Running?).
The idea came from a situation most of us have hit: you log into a machine, see a process or port running, and immediately wonder why it exists, who started it, and what is keeping it alive right now.
witr traces a process, service, or port back to its origin and responsibility chain and explains it in a way that’s quick to read, especially when you’re debugging under pressure.
This is v0.1.0. It’s intentionally small and focused. Feedback, criticism, and edge cases are very welcome.
Repo: https://github.com/pranshuparmar/witr
Drawing with zero-width characters
Retreating from EVs could be hazardous for Western carmakers
The article explores the risks for Western carmakers if they retreat from investing in electric vehicles (EVs). It warns that falling behind in the transition to EVs could leave these automakers vulnerable to competition from Chinese and other international rivals who are rapidly embracing the shift to electric mobility.
-tucky (2023)
The article discusses the difficulties of translating references to Chinese names and terms into English, highlighting the challenges of preserving cultural nuance and avoiding potential misunderstandings or misleading interpretations.
LearnixOS
My insulin pump controller uses the Linux kernel. It also violates the GPL
This article discusses the use of the Linux operating system in an insulin pump, highlighting the benefits of open-source software in medical devices and the potential security implications of using widely-adopted technology in sensitive applications.
Parasites plagued Roman soldiers at Hadrian's Wall
A study of ancient Roman soldier remains found at Hadrian's Wall in Britain suggests that they suffered from parasitic infections, likely due to poor sanitation and living conditions. The research highlights the health challenges faced by Roman troops stationed along the frontier.
SIMD City: Auto-Vectorisation
The article discusses the development of SIMD (Single Instruction, Multiple Data) instructions, which enable efficient parallel processing on modern CPUs. It examines how SIMD has evolved over time and how it is used in various applications, particularly in the context of city simulations and optimizations.
Moravec's Paradox and the Robot Olympics
The article explores the concept of physical intelligence and how it can be developed and applied to enhance athletic performance. It discusses the importance of understanding one's own body and movement patterns to optimize training and achieve success in sports, particularly in the context of the Olympic Games.
FFmpeg has issued a DMCA takedown on GitHub
Perfect Aircrete, Kitchen Ingredients [video]
Ask HN: What did you read in 2025?
I mostly read newspapers and technical journals, but two books that I read that made an impression: "The Changing World Order" and "The Gulag Archipelago".
Show HN: Xcc700: Self-hosting mini C compiler for ESP32 (Xtensa) in 700 lines
Repo: https://github.com/valdanylchuk/xcc700
Hi Everyone! I just wrote my first compiler!
- single pass, recursive descent, direct emission
- generates REL ELF binaries, runnable using ESP-IDF elf_loader
- very basic features only, just enough for self-hosting
- treats the Xtensa CPU as a stack machine for simplicity, no register allocation / window usage
- compilable on Mac, probably also Linux, can cross-compile for esp32 there
- wrote for fun / cyberdeck project
Sample output from esp32:
xcc700.elf xcc700.c -o /d/cc.elf
[ xcc700 ] BUILD COMPLETED > OK
> IN : 700 Lines / 7977 Tokens
> SYM : 69 Funcs / 91 Globals
> REL : 152 Literals / 1027 Patches
> MEM : 1041 B .rodata / 17120 B .bss
> OUT : 27735 B .text / 33300 B ELF
[ 40 ms ] >> 17500 Lines/sec <<
My best hope is that some fork might grow into a unique nice language tailored to the esp32 platform. I think it is underrated in userland hobby projects.
Gaussian Splatting 3 Ways
MongoBleed
The article discusses a vulnerability in MongoDB, known as 'MongoBleed,' that allows attackers to steal sensitive data from MongoDB databases. It provides a Python script that demonstrates the vulnerability and explains how to mitigate the issue by properly configuring MongoDB.
The Algebra of Loans in Rust
This article explores the implementation of loan calculations in Rust, delving into the underlying mathematical concepts and demonstrating how to create a loan amortization schedule using Rust's type system and traits.
Rob Pike goes nuclear over GenAI
Related: Rob Pike got spammed with an AI slop "act of kindness" - https://news.ycombinator.com/item?id=46394867
Unix "find" expressions compiled to bytecode
The article discusses the future impact of AI on software development, highlighting the potential for AI-generated code to transform the industry and create new challenges for developers in terms of code maintenance and security.
Migrating my web analytics from Matomo to Umami
The article discusses the process of migrating from Matomo, an open-source web analytics platform, to Umami, a lightweight and privacy-focused alternative. It outlines the steps involved in exporting data from Matomo and importing it into Umami, as well as the benefits of making the switch to the newer platform.
What happened to all the gold Spain got from the New World? (1985)
The article explores what happened to the vast amounts of gold and other treasures that Spain acquired from the New World during the colonial era. It examines how Spain's economy and global influence were impacted by the influx of wealth, as well as the long-term consequences of the country's spending and policies.