A Love Letter to FreeBSD

The writer appreciates FreeBSD's coherence, stability, and quiet strength, comparing it to a mainframe humming in the background. They hope it stays different, earning trust with its reliability and long-term focus.

Writing a good Claude.md

https://www.humanlayer.dev/blog/writing-a-good-claude-md/instructionfollowing.png
To onboard Claude into your codebase, use CLAUDE.md to define your project's WHY, WHAT, and HOW, keeping instructions to a minimum and using Progressive Disclosure to avoid bloating the context window. Avoid auto-generating CLAUDE.md and use linters, code formatters, and other features to handle implementation and formatting separately for better results.

Algorithms for Optimization [pdf]

This book provides a comprehensive introduction to optimization with a focus on practical algorithms for engineering design, covering various optimization topics and techniques. The book aims to equip readers with the knowledge and skills to apply optimization algorithms to real-world problems, with a focus on engineering design and applications in fields such as mathematics, statistics, and ...

Advent of Code 2025

Eric Wastl created Advent of Code, an annual programming puzzle event with varying difficulty levels. It's free to use, but not to copy, and users can participate with any programming language and skill level.

Windows drive letters are not limited to A-Z

https://www.ryanliptak.com/images/windows-drive-letters-are-not-limited-to-a-z/cdrive.png
Windows allows drive letters outside of A-Z, but they don't appear in File Explorer and can't be navigated to due to explorer.exe's special logic. The kernel32.dll API SetVolumeMountPointW has a quirk where it truncates non-ASCII drive letters, creating a symbolic link to a different drive letter.

Bricklink suspends Marketplace operations in 35 countries (developing story)

https://jaysbrickblog.com/wp-content/uploads/2025/11/LEGO-Bricklink-Country-Closure-Feature-1400x933.png
BrickLink, a major online marketplace for LEGO enthusiasts, has announced it will no longer be available in 35 countries starting December 12, 2025, affecting thousands of fans and sellers worldwide. The decision has sparked outrage and disappointment among the LEGO community, with many questioning the reasoning behind the ban and calling for a boycott of BrickLink.

Migrating Dillo from GitHub

Rodrigo Arias Mallo wants to migrate Dillo project from GitHub to a self-hosted server with multiple mirrors to avoid single point of failure and solve usability issues. He chose cgit as the git frontend and created a simple bug tracker software called buggy to store data in plain text.

LLVM-MOS – Clang LLVM fork targeting the 6502

https://llvm-mos.org/images/thumb/d/d7/Miroh_Jr_for_NES.gif/300px-Miroh_Jr_for_NES.gif
llvm-mos is an open-source LLVM fork for MOS 6502 and relatives, providing modern software development for classic platforms. It includes a C compiler, SDK, and automated testing infrastructure for various targets.

ESA Sentinel-1D delivers first high-resolution images

https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2025/11/elbe_river_delta_by_sentinel-1d/26991695-2-eng-GB/Elbe_River_delta_by_Sentinel-1D_article.jpg
The European Space Agency's Copernicus Sentinel-1D satellite captured high-resolution images of Antarctica, South America, and Bremen, Germany, within 50 hours of launch. The images show glaciers, ships, and sea pollution, providing valuable data for climate change research and monitoring.

ETH-Zurich: Digital Design and Computer Architecture; 227-0003-10L, Spring, 2025

The class introduces digital circuit design and computer architecture from the bottom up, covering execution paradigms and hardware description languages. It focuses on fundamental techniques for modern microprocessor design and hardware/software interface.

Program-of-Thought Prompting Outperforms Chain-of-Thought by 15% (2022)

https://arxiv.org/static/browse/0.3.4/images/icons/smileybones-pixel.png
Researchers proposed "Program of Thoughts" (PoT) to improve step-by-step reasoning in language models. PoT achieved an average 12% performance gain over state-of-art method Chain-of-thoughts prompting (CoT) on various math and financial datasets.

GitHub to Codeberg: my experience

The user migrated their GitHub repositories to Codeberg, a process that took a weekend and involved setting up their profile, importing repositories, and configuring CI/CD pipelines. They also successfully migrated their website to git-pages, a service that supports uploading and hosting static websites.

"Boobs check" – Technique to verify if sites behind CDN are hosted in Iran

Something went wrong, but don’t fret β€” let’s give it another shot. Some privacy related extensions may cause issues on x.com. Please disable them and try again.

Stackoverflow Outage

Something is happening... This is where you can stay updated on incidents and site maintenance. Incident History Monitoring Cloudflare is currently having issues that can affect some users attempting to access the site. We are currently monitoring the situation.

CachyOS: Fast and Customizable Linux Distribution

https://cachyos.org/_astro/hero.BvceRk57.jpg
CachyOS is a Linux distribution built on Arch Linux with optimized performance using the BORE Scheduler and advanced instruction sets. It offers various desktop environments and installers, including GUI and CLI options, for a customized experience.

Don't push AI down our throats

https://substackcdn.com/image/fetch/$s_!pMD9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3334af56-2e09-42b9-b5fd-09c73b42259e_2816x1536.jpeg
The writer feels AI is being forced on people for profit rather than utility, and wants a more organic adoption process. They want to use AI that works, not a digital god, and value its benefits over tech giants' investments.

Stop Hacklore – An Open Letter

To manage digital risk, focus on keeping critical devices and applications updated, enabling multi-factor authentication, and using strong passphrases or a password manager. Software manufacturers should take responsibility for building secure software by design and default, and incentivize independent security researchers to identify and fix vulnerabilities.

The Thinking Game Film – Google DeepMind documentary

https://images.squarespace-cdn.com/content/v1/665a31a184dd027cf258f444/d08366f0-6f94-41ea-8337-3351764fed86/The+Thinking+Game+-+White.png?format=1500w
The Thinking Game takes you on a fascinating journey into the heart of DeepMind, one of the world's leading AI labs, as it strives to unravel the mysteries of artificial general intelligence (AGI).

People keep flocking to Linux, not just to escape Windows

https://www.zdnet.com/a/img/resize/e27b3953df87b835a77deeeec01f311aa283a5ec/2022/08/05/e2171bd1-84f6-4ca8-9801-2abdeb61a365/steven-vaughan-nichols.jpg?auto=webp&fit=crop&frame=1&height=192&width=192
Linux desktop adoption is growing rapidly with 11.37% market share in the US and 23.3% when including Chrome OS and Android, making it a top operating system. Users are switching to Linux due to concerns about Windows 11's forced interface changes, AI integration, and data control, as well as the rise of Digital Sovereignty initiatives in the EU.

RetailReady (YC W24) Is Hiring Associate Product Manager

https://bookface-images.s3.us-west-2.amazonaws.com/logos/6f80b4a48465bc260e00f9331c1aa38175ffced5.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAQC4NIECAMHI6AH2S%2F20251130%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20251130T170749Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjECEaCXVzLXdlc3QtMiJIMEYCIQCs7AnvjClDK3G298N4DcijT3RGxz5dqAfcbqJNGgwbrQIhAMVDrKo3IwABLuCiAnbRKKul%2FmAfWhhyWKhYWfzwnvl0Ku4DCOr%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQABoMMDA2MjAxODExMDcyIgyp8gzJW%2BtqeuRK9r8qwgOU5%2FjE7g38rnTBkAvb6g5qvocBeZQCwtp%2BAKNatJZ%2B0%2B5S%2ByJlLo1VH1zkaWSnh%2Fyamk3mvsGpAhzjyuyL21QB9qXH3XxbsXIA3CgtXTrVg%2BQpd%2B8rLBM5SEgs%2FPIhF3I4%2FbKbnSS%2BkJWqTVUpStb4csLMQodlH5TfHtR5oCeo2TW9lvyAuNCqX9kggt0saLMzhWVGjKi%2BnTIabfGDySUCtgC6iEQFUwrZY1E0qEzRolUpJs%2BIjEf3038gnH8BhJ%2FgGcfBp9dBya%2Bv%2Bjnbn9NQqHCsgjMwlcHWB2yVRUMlN7jBMXPFYHL%2Bo%2Biz%2Bs%2Fn1CcSWIzeNrjqniZQIQTMDvj%2Bwi0CoY9szPob3gRB8lruIp64NJppT4%2FhuplBZae%2B1jNEy4hBzpCRwANpH2xya0zo0xrqEeilAdHopmgByyEjoHD%2FVUIqGC%2FFIEydh%2B%2BU1Nm2ARCdc8CNj8zQScNEOh4eT8f0vIR3n88h8IDGKH55YLudgueIE2livTWnbUbtcE28t%2FYhaAbBTTas4mq259UKEFduoRt9HfTBof0VVwZzs7TAkgv1PyEuzKzPnW89lDeMb3ARjRfivxWYY7fh5LmrWSUw0vGxyQY6pAHzqsUdBJuHnCXTlYbdRb%2BNUYh0l0YqiDoKzAE7%2FcUA32PFKK3r3PAmlVzVJSNEM9aRJUWp6sJb5BRsS4Pl%2BIZZCs3lpRizgHaJcBN6Vvn5aW992ELHTNBwAkgJewAkqw%2FmCxf8rlHBZxxUU8Bv%2FEG3BdZk6bHuJNDSa5d7eXM5DI59SZWPY%2Fzfj6knXPmZEBpa2NZPIS1xJPlUnqQF0ZeL2GXJtw%3D%3D&X-Amz-SignedHeaders=host&X-Amz-Signature=6243670251a56c1486ceb15accfb4cf1afd0ac8a2fffbdfc17f91e8a2fdc4891
RetailReady is hiring an Associate Product Manager to drive day-to-day product execution and grow into a full PM role. The ideal candidate is a strong communicator with technical learning skills and experience in QA or supply chain.

The myth of reflected power (2017)

https://www.iz2uuf.net/wp/wp-content/uploads/2017/07/reflection.jpg
The Mismatch Loss formula is flawed as it does not accurately predict power loss due to mismatch in a transmission line, and the actual loss is mainly due to the line's attenuation and the generator's internal resistance. A tuner can help minimize the loss by adapting the impedance at the input, but its insertion loss is often negligible, and modern transceivers can compensate for some degree ...

Show HN: Real-time system that tracks how news spreads across 200k websites

0 sources +0 span

Show HN: Fixing Google Nano Banana Pixel Art with Rust

https://raw.githubusercontent.com/Hugo-Dz/spritefusion-pixel-snapper/main/static/hero.png
A tool to snap pixels to a perfect grid. Designed to fix messy and inconsistent pixel art generated by AI. Pixel Snapper is a Sprite Fusion project. Sprite Fusion is a free, web-based tilemap editor for game developers supporting a wide range of engines including Unity, Godot, Defold, and GB Studio.

NixOS 25.11 released

https://nixos.org/_astro/nixos-logo-25.11-xantusia-lores.CLapGrL7_Z1CRDey.webp
NixOS 25.11 "Xantusia" is released with bugfixes and security updates until 2026-06-30. It features updated packages, GNOME 49, and improved maintainability.

You want microservices, but do you need them?

https://www.docker.com/app/uploads/2025/11/microservices-gartner.jpg
Amazon Prime Video abandoned microservices for a monolith in May 2023, resulting in 90% lower costs and faster performance. Many tech giants are walking back their microservices architectures, revealing that simpler architectures can deliver comparable scalability without the distributed complexity tax.
https://www.potaroo.net/ispcol/2025-11/starlinkgeo2-fig1.png
Anomalies in Starlink user data in Yemen and Myanmar were initially attributed to various factors, but civil unrest and ad-blocking measures were found to be contributing factors. The data has been re-evaluated, and the original Starlink geolocation data has been restored for 20 countries, including Yemen.

Langjam Gamejam: Build a programming language then make a game with it

Langjam Gamejam is a 7-day challenge to create a programming language and then use that language to build a game. You set the rules. Be as creative as possible, use any technologies you want, and have fun. There will be prizes for the most creative submissions!

There is No Quintic Formula [video]

Paul Hegarty's updated CS193p SwiftUI course released by Stanford

https://cs193p.stanford.edu/sites/g/files/sbiybj16636/files/styles/card_1900x950/public/media/image/2025l3thumbnail_0.jpg?h=5b0c966a&itok=MeOFBWs-
Understanding the separation of Model (logic and data) from UI. Introduction to some of the fundamentals of the Swift Type System.

Finding the grain of sand in a heap of Salt

Cloudflare's SRE team faced a challenge in finding the root cause of Salt configuration management failures on thousands of servers with hundreds of changes in 15 minutes. They built a system to cache job results on minions, created a Salt execution module called Salt Blame, and implemented a hierarchical triage model to reduce Salt failure triage time by over 5%.