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,
llm-wiki
llm-wiki.md LLM Wiki A pattern for building personal knowledge bases using LLMs. This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you. The core idea Most people's experience with LLMs and documents lo
はじめに こんにちは、計測プラットフォーム開発本部SREブロックの近藤です。普段はZOZOMATやZOZOGLASS、ZOZOFITなどの計測技術に関わるシステムの開発、運用に携わっています。 計測プラットフォーム開発本部では、複数のプロダクトを開発運用していますが、リリース作業はプロダクト単位で行っています。プロダクトによってローンチから数年経過し安定傾向のものもあれば、ローンチしたばかりで機能開発が盛んなものもある状態です。 複数のプロダクトを管理する上では当然の状況ですが、プロダクト単位でリリース作業手順が異なり、手順そのものにも課題がある状態でした。 本記事では、リリース作業で課題となっていた部分の紹介と、それぞれの課題に対する対応策についてご紹介します。 目次 はじめに 目次 現状 課題と対応方針 リリース作業の自動化 リリース作業の自動化をする上での必須条件の確認 自動化が必要
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
Fish 4.0: The Fish Of Theseus
About two years ago, our head maintainer @ridiculousfish opened what quickly became our most-read pull request: #9512 - Rewrite it in Rust Truth be told, we did not quite expect that to be as popular as it was. It was written as a bit of an in-joke for the fish developers first, and not really as a press release to be shared far and wide. We didn’t post it anywhere, but other people did, and we go
Note: As of 2022/10/25 the information in this series is slightly outdated. See Part 5 for more up to date information. The Car⌗ Last summer I bought a 2021 Hyundai Ioniq SEL. It is a nice fuel-efficient hybrid with a decent amount of features like wireless Android Auto/Apple CarPlay, wireless phone charging, heated seats, & a sunroof. One thing I particularly liked about this vehicle was the In-V
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
TerraformとGitHub Actionsで複数のCloud RunをまとめてDevOpsした結果, 開発者体験がいい感じになった話. - Lean Baseball
ざっくり言うと「TerraformとGitHub ActionsでGoogle Cloudなマイクロサービスを丸っとDeployする」という話です. Infrastructure as Code（IaC）は個人開発（趣味開発）でもやっておけ 開発〜テスト〜デプロイまで一貫性を持たせるCI/CDを設計しよう 個人開発（もしくは小規模システム）でどこまでIaCとCI/CDを作り込むかはあなた次第 なお, それなりに長いブログです&専門用語やクラウドサービスの解説は必要最小限なのでそこはご了承ください. あらすじ 突然ですが, 皆さんはどのリポジトリパターンが好きですか? 「ポリレポ（Polyrepo）」パターン - マイクロサービスを構成するアプリケーションやインフラ資材を意味がある単位*1で分割してリポジトリ化する. 「モノレポ（Monorepo）」パターン - アプリケーションもインフラも
Claude Code handles complex, multi-step projects well, but long sessions accumulate weight. Every file read, every tangent explored, every half-finished thought stays in the context window, slowing responses and driving up token costs. Consider building a new feature in a large TypeScript monorepo. The main work is the implementation, but side tasks keep appearing: trace how an existing service ha
Mini Shai-Hulud の概要と対応指針（2026年4月末 連続パッケージ侵害） - GMO Flatt Security Blog
2026年4月29日から30日にかけて、複数の主要パッケージが連続して侵害されました。npm 上では SAP CAP の @cap-js/sqlite / @cap-js/postgres / @cap-js/db-service および SAP の mbt、加えて intercom-client が、PyPI 上では PyTorch Lightning（lightning）が標的となりました。 これら一連の侵害は、攻撃者がデータ持ち出しに用いるリポジトリの description が A Mini Shai-Hulud has Appeared であることから、コミュニティで Mini Shai-Hulud と呼ばれています。 本記事は、各社の公開分析および手元での検証を踏まえ、日本のコミュニティ向けに事象と対応を整理するものです。 TL;DR - 対応指針 はじめに タイムライン 侵害
Ubuntu Weekly Recipe 第861回systemdの開発者が作ったmkosiで、お手軽にルートファイルシステムを構築する ソフトウェアの作成時における悩ましい問題のひとつが「動作確認環境の構築」です。今回はこの動作確認環境をCI等から作成・利用しやすい「mkosi」について紹介しましょう。 mkosiとは 「mkosi」とはさまざまなディストリビューションの起動可能なOSツリーやイメージを作成するツールです。URLからもわかるように、systemdの開発者たちがsystemdの動作確認用に作ったツールでもあります。その名前の由来は「Make Operating System Image」であり、次のような機能を備えています。 UbuntuやFedoraを含むさまざまなディストリビューションのルートファイルシステムに対応 個々のリリースやCPUアーキテクチャーを指定できる
Posted on Monday, April 1, 2024. Updated Wednesday, April 3, 2024. Over a period of over two years, an attacker using the name “Jia Tan” worked as a diligent, effective contributor to the xz compression library, eventually being granted commit access and maintainership. Using that access, they installed a very subtle, carefully hidden backdoor into liblzma, a part of xz that also happens to be a d
DockerDesktopの代替になるかも？と巷で話題の「Finch」を使ってみた - NRIネットコムBlog
本記事は NRIネットコム Advent Calendar 2022 18日目の記事です。 🎁 17日目 ▶▶本記事 ▶▶ 19日目 🎄 ども、尾澤です。めっきり寒くなりました。 Techブログ登場は2回目です。 このブログが公開される頃には決勝進出チームが決まり、 ３位決定戦が終わっている頃でしょう。 私の決勝予想はFRA or BRZ ... と、予想していましたが、 BRZはベスト8で姿を消しました。。。がんばれFRA。 Finch とは 近年ライセンス料金改定によって経営陣の頭を悩ませている（？）Docker Desktopですが、 その代替になりうるツールと呼ばれているのが「Finch」です。（読み方わからん） 2022年11月にAWSからオープンソースとして公開されました。 https://github.com/runfinch ちょっとドキュメント読んでみる というわけで
Tweag has been working on a GHC WebAssembly backend for some time. Recently, the WebAssembly backend merge request has landed in GHC, and is on course to appear in the upcoming 9.6 release series. This post will give a quick demonstration of how to try it out locally, and explain what comes in this patch and what will be coming next. Playing with WASM locally If you’re using nix on x86_64-linux, c
Notes by djb on using Fil-C (2025) I'm impressed with the level of compatibility of the new memory-safe C/C++ compiler Fil-C (filcc, fil++). Many libraries and applications that I've tried work under Fil-C without changes, and the exceptions haven't been hard to get working. I've accumulated miscellaneous notes on this page regarding usage of Fil-C. My selfish objective here is to protect various
Running LLaMA 7B and 13B on a 64GB M2 MacBook Pro with llama.cpp
Running LLaMA 7B and 13B on a 64GB M2 MacBook Pro with llama.cpp See also: Large language models are having their Stable Diffusion moment right now. Facebook's LLaMA is a "collection of foundation language models ranging from 7B to 65B parameters", released on February 24th 2023. It claims to be small enough to run on consumer hardware. I just ran the 7B and 13B models on my 64GB M2 MacBook Pro! I
Update 1.69.1: The update addresses these issues. Update 1.69.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the June 2022 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: 3-way merge editor - Resolve merge conflicts wit
I’ve been curious about what happens inside Claude Code so I’ve spent a couple hours digging through prompts that it sends back to Anthropic. As I’ve been going through that, I’ve gathered some insights why Claude Code is often slower and more expensive than other tools like Cursor. Updated: Since this post was published, someone on the internet created much deeper analysis of Claude Code. Check i
reviewdog x Custom FormatterでRuboCopの自動修正を提案させるようにしました - inSmartBank
reviewdog/action-rubocopというOSSプロジェクトをご存知でしょうか。Rubyの静的解析ツールであるRuboCopをGitHub Actionsで実行し、指摘箇所にコメントを付けてくれる便利なCustom Actionです。 本記事では筆者がこのOSSを改良して実装したSuggestion featureという便利機能とその実装についてご紹介します。RuboCopをお使いの方、より良いRuboCop生活をお求めの方、静的解析が好きな方向けの記事となります。 なお、この記事は2023-06-21に行われたGotanda.rb#53@ギフティで"RuboCop Custom Formatter for Reviewdog Diagnostic Format"と題して筆者が行った発表をもとにしています。 前提となる知識 初めにreviewdog/action-rubocop
Version 1.108 is now available! Read about the new features and fixes from December. Release date: June 12, 2025 Security update: The following extension has security updates: ms-python.python. Update 1.101.1: The update addresses these issues. Update 1.101.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome t
Running Google Gemma 4 Locally With LM Studio’s New Headless CLI & Claude Code
Why run models locally?Cloud AI APIs are great until they are not. Rate limits, usage costs, privacy concerns, and network latency all add up. For quick tasks like code review, drafting, or testing prompts, a local model that runs entirely on your hardware has real advantages: zero API costs, no data leaving your machine, and consistent availability. Google’s Gemma 4 is interesting for local use b
Find information about security best practices when you are writing workflows and using GitHub Actions security features. Writing workflows Use secrets for sensitive information Because there are multiple ways a secret value can be transformed, automatic redaction is not guaranteed. Adhere to the following best practices to limit risks associated with secrets. Principle of least privilege Any user
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
Detailed here are some of the tools and techniques we use to test the GNU coreutils project, which should present some useful ways to automate the use of tools like gdb, strace, valgrind, sed, grep, or the coreutils themselves etc., either for testing or for other applications. We also describe general techniques like using timeouts in a robust and performant way. Test framework automake's test fr
OpenBSD is an operating system that's famous for its focus on security. Unfortunately, OpenBSD leader Theo states that there are only 7000 users of OpenBSD. So it's a very small but elite group, that wields a disproportionate influence; since we hear all the time about the awesome security features these guys get to use, even though we usually can't use them ourselves. Pledge is like the forbidden
Update 1.78.1: The update addresses this security issue. Update 1.78.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the April 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 - Better scre
Using Lima to run containers with containerd and nerdctl (without Docker Desktop) on M1 Macs
lima-on-m1-mac-installation-guide.md Lima (Linux virtual machines, on macOS) installation guide for M1 Mac. Sep. 27th 2021 UPDATED Now we can install patched version of QEMU via Homebrew (thank you everyone for the info!). Here is the updated instruction with it: Used M1 Mac mini 2020 with macOS Big Sur Version 11.6. 1. Install QEMU & Lima 1-1. Uninstall existing (manually installed) QEMU and Lima
Update 1.97.1: The update addresses these security issues. Update 1.97.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the January 2025 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Next Edit Suggestions (preview) - Co
Competitiveness is a vice of mine. When I heard that a friend got Linux to boot off of NFS, I had to one-up her. I had to prove that I could create something harder, something better, faster, stronger. Like all good projects, this began with an Idea. My mind reached out and grabbed wispy tendrils from the æther, forcing the disparate concepts to coalesce. The Mass gained weight in my hands, and a
This paper reflects work done in late 2022 and 2023 to audit for vulnerabilities in terminal emulators, with a focus on open source software. The results of this work were 10 CVEs against terminal emulators that could result in Remote Code Execution (RCE), in addition various other bugs and hardening opportunities were found. The exact context and severity of these vulnerabilities varied, but some
My thoughts on writing a Minecraft server from scratch (in Bash) For the past year or so, I've been thinking about writing a Minecraft server in Bash as a thought excercise. I once tried that before with the Classic protocol (the one from 2009), but I quickly realized there wasn't really a way to properly parse binary data in bash. Take the following code sample: function a() { read -n 2 uwu echo
Elixir v1.12 released
Elixir v1.12 is out with improvements to scripting, tighter Erlang/OTP 24 integration, stepped ranges, and dozen of new functions across the standard library. Overall this is a small release, which continues our tradition of bringing Elixir developers quality of life improvements every 6 months. Some of these improvements directly relates with the recent efforts of bringing Numerical Computing to
PowerShell: the object-oriented shell you didn’t know you needed | Chris Warrick
PowerShell is an interactive shell and scripting language from Microsoft. It’s object-oriented — and that’s not just a buzzword, that’s a big difference to how the standard Unix shells work. And it is actually usable as an interactive shell. Getting Started PowerShell is so nice, Microsoft made it twice. Specifically, there concurrently exist two products named PowerShell: Windows PowerShell (5.1)
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
In Praise of dhh
In Praise of dhh November 8, 2025 | #tech #politics A reflection on Ruby’s past, present, and future. This is a long essay. I strongly recommend you read it from the beginning, but to help navigate it I have created this table of contents. Prologue The Past How I Learned To Love Ruby A Breath Of Fresh Air A Shared Worldview The Present Tragedy Strikes Recent Conflict In The Community Strength and
Indoor VivantsAnton Sviridov. I love reinventing the wheel and I usually use Scala for that. TL;DR We are deploying an app to Cloudflare using Scala.js We are using ScalablyTyped We are using Scala 3 heavily Code on Github Deployed app Cloudflare API bindings Welcome to the "Put ma Scala on yo cloud" series I want to say that I'm kicking off a blog series, but even I don't believe that. If I did,
2026-05-07, Version 26.1.0 (Current), @aduh95 Notable Changes Experimental node:ffi module Node.js now includes an experimental node:ffi module for loading dynamic libraries and calling native symbols from JavaScript. The API is gated behind the --experimental-ffi flag and, when the Permission Model is enabled, requires --allow-ffi. This API is inherently unsafe. Invalid pointers, incorrect signat
GitHub Actions を使って Google Cloud 環境に Terraform を実行する方法 - G-gen Tech Blog
G-gen の武井です。 当記事では Infrastructure as Code (IaC) を実現する Terraform を Google Cloud (旧称 GCP) で実行する際、GitHub の CI/CD 機能である GitHub Actions を介して実行する方法を紹介します。 GitHub Actions とは 概要 ワークフロー 図説 Google Cloud との連携 概要 従来の認証 Workload Identity 連携による認証 Workload Identity 連携 仕組み メリット 図説 設定方法 概要 Terraform のセットアップ GitHub Actions の設定 ディレクトリ構成 Workload Identity 連携の設定 ワークフローの定義 動作検証 概要 動作検証用リソースの定義 Pull Request 実行 Merge 実行
Using skills to accelerate OSS maintenance | OpenAI Developers
Keep workflows in the repo In these repos, we use skills to capture repository-specific workflows. A skill is a small package of operational knowledge: a SKILL.md manifest, plus optional scripts/, references/, and assets/. The Codex customization docs describe why this works well: skills are a good fit for repeatable workflows because they can carry richer instructions, scripts, and references wit
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Building a tiny Linux from scratch
GitHub Flow with GitOpsの導入 - ZOZO TECH BLOG
How I Hacked my Car
The Linux Kernel Module Programming Guide
How and when to use subagents in Claude Code | Claude
第861回 systemdの開発者が作ったmkosiで、お手軽にルートファイルシステムを構築する | gihyo.jp
research!rsc: Timeline of the xz open source attack
WebAssembly backend merged into GHC
Notes by djb on using Fil-C (2025)
June 2022 (version 1.69)
Reverse engineering Claude Code • Kir Shatrov
May 2025 (version 1.101)
Secure use reference - GitHub Docs
June 2023 (version 1.80)
July 2022 (version 1.70)
How the GNU coreutils are tested
Porting OpenBSD pledge() to Linux
April 2023 (version 1.78)
January 2025 (version 1.97)
Booting Linux off of Google Drive
"�[31m"?! ANSI Terminal security in 2023 and finding 10 CVEs
My thoughts on writing a Minecraft server from scratch (in Bash)
0.10.0 Release Notes ⚡ The Zig Programming Language
Cloudflare functions with Scala.js
Node.js — Node.js 26.1.0 (Current)