Last week, I built a tiny Linux system from scratch, and booted it on my laptop! Here’s what it looked like: Let me tell you how I got there. I wanted to learn more about how the Linux kernel works, and what’s involved in booting it. So I set myself the goal to cobble together the bare neccessities required to boot into a working shell. In the end, I had a tiny Linux system with a size of 2.5 MB,
written on June 12, 2025 There is currently an explosion of people sharing their experiences with agentic coding. After my last two posts on the topic, I received quite a few questions about my own practices. So, here goes nothing. Preface For all intents and purposes, here’s what I do: I predominently use Claude Code with the cheaper Max subscription for $100 a month 1. That works well for severa
GitHub - modelcontextprotocol/servers: Model Context Protocol Servers
Official integrations are maintained by companies building production ready MCP servers for their platforms. 21st.dev Magic - Create crafted UI components inspired by the best 21st.dev design engineers. 2slides - An MCP server that provides tools to convert content into slides/PPT/presentation or generate slides/PPT/presentation with user intention. ActionKit by Paragon - Connect to 130+ SaaS inte
Peter Jay Salzman, Michael Burian, Ori Pomerantz, Bob Mottram, Jim Huang 1 Introduction 1.1 Authorship 1.2 Acknowledgements 1.3 What Is A Kernel Module? 1.4 Kernel module package 1.5 What Modules are in my Kernel? 1.6 Is there a need to download and compile the kernel? 1.7 Before We Begin 2 Headers 3 Examples 4 Hello World 4.1 The Simplest Module 4.2 Hello and Goodbye 4.3 The __init and __exit Mac
Preliminaries What Is xargs? It's an adapter between text streams and argv arrays, two essential concepts in shell. You pass it flags that specify how to split stdin. Then it generates arguments and invokes processes. Example: $ echo 'alice bob' | xargs -n 1 -- echo hi hi alice hi bob What's happening here? xargs splits the input stream on whitespace, producing 2 arguments, alice and bob. We passe
written on July 03, 2025 If you’ve been following me on Twitter, you know I’m not a big fan of MCP (Model Context Protocol) right now. It’s not that I dislike the idea; I just haven’t found it to work as advertised. In my view, MCP suffers from two major flaws: It isn’t truly composable. Most composition happens through inference. It demands too much context. You must supply significant upfront in
Weird Lexical Syntax
I just learned 42 programming languages this month to build a new syntax highlighter for llamafile. I feel like I'm up to my eyeballs in programming languages right now. Now that it's halloween, I thought I'd share some of the spookiest most surprising syntax I've seen. The languages I decided to support are Ada, Assembly, BASIC, C, C#, C++, COBOL, CSS, D, FORTH, FORTRAN, Go, Haskell, HTML, Java,
Posted on Tuesday, April 2, 2024. Updated Wednesday, April 3, 2024. Introduction Andres Freund published the existence of the xz attack on 2024-03-29 to the public oss-security@openwall mailing list. The day before, he alerted Debian security and the (private) distros@openwall list. In his mail, he says that he dug into this after “observing a few odd symptoms around liblzma (part of the xz packag
Update 1.80.1: The update addresses these issues. Update 1.80.2: The update addresses this security issue. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the June 2023 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Accessibility improvements - Accessible V
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.70.1: The update addresses these issues. Update 1.70.2: The update addresses these issues. Update 1.70.3: This update is only available for Windows 7 users and is the last release supporting Windows 7. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welc
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Making a Chess Engine in Zig
I had the honor of speaking at Systems Distributed at the end of June. Since it was hosted by TigerBeetle who is one of the largest zig users, a lot of the zig community was there. After talking to some of them, Zig seemed more interesting for me to try out. Around the same time my youtube algorithm got me hooked on chess content. I’m not a good chess player by any means, but it started giving me
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
Preamble In the expanding world of AI my heart still lies in AST transforms, browser fingerprinting, and anti-bot circumvention. In fact, that's the majority of this blog's content. But my workflow always felt... primitive. I was still manually sifting through page scripts, pasting suspicious snippets into an editor, and writing bespoke deobfuscators by hand. Tools like Webcrack and deobfuscate.io
make.ts
Up Enter Up Up Enter Up Up Up Enter Sounds familiar? This is how I historically have been running benchmarks and other experiments requiring a repeated sequence of commands — type them manually once, then rely on shell history (and maybe some terminal splits) for reproduction. These past few years I’ve arrived at a much better workflow pattern — make.ts. I was forced to adapt it once I started wor
redbean 2.0 release notes
redbean is a webserver in a zip executable that runs on six operating systems. The basic idea is if you want to build a web app that runs anywhere, then you download the redbean.com file, put your .html and .lua files inside it using the zip command, and then you've got a hermetic app you can deploy and share. I introduced this web server about a year ago on Hacker News, where it became the third
[PLAY WEB VERSION: ALONE] [PLAY WEB VERSION: WITH A FRIEND] [PRINT] [RULES] [SIMILAR PROJECTS] [SYMBOLS] [CREDITS] [CONTACT] [GAME HELPER ESP32 | MOBILE] [ASSEMBLY GUIDE] THE GAME I made this game to teach my daughter how buffer overflows work. My favorite part of comuting is looking at programs as something you can play with, and poke and twist and make it whatever you want. When your microwave o
How to Write Shell Scripts in Node with Google's zx Library — SitePoint
In this article, we’ll learn what Google’s zx library provides, and how we can use it to write shell scripts with Node.js. We’ll then learn how to use the features of zx by building a command-line tool that helps us bootstrap configuration for new Node.js projects. Writing Shell Scripts: the Problem Creating a shell script — a script that’s executed by a shell such as Bash or zsh — can be a great
an ssg written in shell
View soure for "an ssg written in shell" [sw gem] from 2026-01-18 in ssg, sw, web, shell. Notes on writing this site's new, mildly cursed, and fun static site generator in (mostly) POSIX shell. Inside a small POSIX SSG Earlier last year, I made this website into a JS single-page application that used two GitHub repos and did regex crimes while praying JavaScript and cross-origin resource-sharing w
Thanks to my sponsors: Andy F, Jack Duvall, Tomas Sedovic, James Leitch, Valentin Mariette, Chris Sims, Nicolas Riebesel, Walther, Marc-Andre Giroux, Enrico Zschemisch, Peter Shih, Marcus Griep, psentee, Zalán Bálint Lévai, Ripta Pasay, Tyler Bloom, Boris Dolgov, ZacJW, Geoffrey Thomas, Hadrien G. and 262 more Some bugs are merely fun. Others are simply delicious! Today’s pick is the latter. Repro
Terminal internals are a mess. A lot of it is just the way it is because someone made a decision in the 80s and now it’s impossible to change. Julia Evans This is what you have to do to redesign infrastructure. Rich [Hickey] didn't just pile some crap on top of Lisp [when building Clojure]. He took the entire Lisp and moved the whole design at once. Gary Bernhardt a mental model of a terminal At a
ParsingLs - Greg's Wiki
The ls(1) command is pretty good at showing you the attributes of a single file (at least in some cases), but when you ask it for a list of files, there's a huge problem: Unix allows almost any character in a filename, including whitespace, newlines, commas, pipe symbols, and pretty much anything else you'd ever try to use as a delimiter except NUL. There are proposals to try and "fix" this within
crawshaw - 2025-06-08
How I program with Agents 2025-06-08 This is the second part of my ongoing self-education in how to adapt my programming experience to a world with computers that talk. The first part, How I program with LLMs, covered ways LLMs can be adapted into our existing tools (basically, autocomplete) and how careful prompting can replace traditional web search. Now I want to talk about the harder, and more
Django 6.0 was released today, starting another release cycle for the loved and long-lived Python web framework (now 20 years old!). It comes with a mosaic of new features, contributed to by many, some of which I am happy to have helped with. Below is my pick of highlights from the release notes. Upgrade with help from django-upgrade If you’re upgrading a project from Django 5.2 or earlier, please
research!rsc: Hash-Based Bisect Debugging in Compilers and Runtimes
Setting the Stage Does this sound familar? You make a change to a library to optimize its performance or clean up technical debt or fix a bug, only to get a bug report: some very large, incomprehensibly opaque test is now failing. Or you add a new compiler optimization with a similar result. Now you have a major debugging job in an unfamiliar code base. What if I told you that a magic wand exists
Announcing three new capabilities for the Claude 3.5 model family in Amazon Bedrock | Amazon Web Services
AWS News Blog Announcing three new capabilities for the Claude 3.5 model family in Amazon Bedrock November 4, 2024: Anthropic’s Claude 3.5 Haiku was announced as “coming soon” when this article originally published. It became available in Amazon Bedrock on Nov. 4. Four months ago, we introduced Anthropic’s Claude 3.5 in Amazon Bedrock, raising the industry bar for AI model intelligence while maint
Functional Semantics in Imperative Clothing There's an old joke about programming with pure functions: “Eventually you have to do some effects. Otherwise you're just heating up the CPU.” I've always wanted the purely functional Roc programming language to be delightful for I/O-heavy use cases. But when I recently sat down to port an I/O-heavy shell script from Bash to Roc, I wasn't happy with how
GitHub - ComfyUI-Workflow/awesome-comfyui: A collection of awesome custom nodes for ComfyUI
ComfyUI-Gemini_Flash_2.0_Exp (⭐+172): A ComfyUI custom node that integrates Google's Gemini Flash 2.0 Experimental model, enabling multimodal analysis of text, images, video frames, and audio directly within ComfyUI workflows. ComfyUI-ACE_Plus (⭐+115): Custom nodes for various visual generation and editing tasks using ACE_Plus FFT Model. ComfyUI-Manager (⭐+113): ComfyUI-Manager itself is also a cu
Node.js
Notable Changes Experimental command-line argument parser API Adds util.parseArgs helper for higher level command-line argument parsing. Contributed by Benjamin Coe, John Gee, Darcy Clarke, Joe Sepi, Kevin Gibbons, Aaron Casanova, Jessica Nahulan, and Jordan Harband - #42675 Experimental ESM Loader Hooks API Node.js ESM Loader hooks now support multiple custom loaders, and composition is achieved
BashFAQ - Greg's Wiki
Note: The FAQ was split into individual pages for easier editing. Also, for faster loading of this page, the answers are no longer presented here in their entirety. Readers, click the [BashFAQ/nnn] link at the bottom of each answer to read the rest of the answer. Editors, click the '[edit]' link at the bottom of each entry. Don't add new ones to this page; create a new subpage with the next availa
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Building a tiny Linux from scratch
Agentic Coding Recommendations
The Linux Kernel Module Programming Guide
An Opinionated Guide to xargs
Tools: Code Is All You Need
research!rsc: The xz attack shell script
June 2023 (version 1.80)
July 2022 (version 1.70)
0.10.0 Release Notes ⚡ The Zig Programming Language
What's New in Emacs 28.1?
I'm Building a Browser for Reverse Engineers
PROJEKT: OVERFLOW
The bottom emoji breaks rust-analyzer
the terminal of the future
Django: what’s new in 6.0 - Adam Johnson
Functional Semantics in Imperative Clothing