Bookmarks

An alignment quirk on Intel and AMD CPUs: keeping a Go array 8-byte aligned (vs offset 4) makes clearing it up to 49% faster, thanks to how REP STOSQ works.

A stalled startup in 2014 became Gin: a Go web framework shaped by simple-over-easy design, a radix-tree router, and an API that still works ten years later.

Build a Rails AI agent with the official Anthropic Ruby SDK: tool loops, MCP servers, write-tool guardrails, approval gates, testing, and cost controls.

I’ve been writing ruby and rails for nearly 20 years. A couple weeks ago, I had gotten code snippets from copy-paste in a chat window, but I hadn’t even experimented with Claude Code or…

Every successful Rails monolith becomes a ruin if it survives long enough. This post is about why, and what a recovery looks like from the inside.

Anthropic just gave every serious AI builder a free lesson in dependency risk. On June 12, the US government issued a directive.

The nokogiri maintainer on how AI has changed security and on maintainer burnout

Gusto, like most companies building with LLMs, is amassing a LOT of software: one-off projects, Claude Artifacts, HTML visualizations…

Agents can write code faster than we can absorb it. Here's why it still matters for humans to understand what they build — and some techniques for doing that efficiently: explainer docs, quizzes, micro-worlds, and shared spaces.

本記事は、2026 年 6 月 22 日に公開された Run isolated sandboxes with […]

https://hatena.connpass.com/event/397502/

Real-time clipboard sync across all your devices — local-first, peer-to-peer, and end-to-end encrypted. No account. No cloud dependency. No central server. - UniClipboard/UniClipboard

GitComet is a fast open source Git GUI for Linux, macOS, and Windows, with focused diff and merge tooling and familiar Git workflows.

GitComet is fastest open source user interface for GIT workflows - Auto-Explore/GitComet

A medieval Markdown linter. Contribute to freesteph/marcdouane development by creating an account on GitHub.

An overview of what’s changed in engineering during the last six months, how various tech companies are changing how they work, and why slowing down could be a sensible strategy

能力与 Claude Code 同档，成本只需 Hermes 的 1/4。100% 开源 MIT、BYOK 自选模型。

A high-performance Ractor web server for Ruby 4.0+: Rack 3-based, with a Rust Tokio/Hyper front-end and Ractor-parallel Ruby workers and threaded fallback mode. - yaroslav/kino

⚡ Livediff: Watch file diffs live in your terminal. Minimalist Rust TUI for instant feedback loops. - SoCkEt7/Livediff

Learn about the seven methods for instructing Claude's behavior to understand the context cost and authority of each.

A complete table showing the compatibility between Sidekiq and Rails across each version, check your upgrade options and know what's the latest version of Sidekiq or Rails you can use.

Web アプリケーションの開発には実ブラウザでの動作確認が必要不可欠です。Playwright CLI や chrome-devtools-mcp などエージェント向けのブラウザ操作ツールは多くが Chromium に依存しています。Safari Technology Preview 247 の MCP サーバーは、エージェントを Safari に接続し操作できるようにします。

An educational Python project for learning how coding agents are built.

a minimalist agent that teaches you to create coding agents - huggingface/tau

How the VS Code and TypeScript teams collaborated to adopt TypeScript 7 and speed up VS Code development

Formisch is a schema-based, headless form library for JS frameworks. It manages form state and validation. It is type-safe, fast by default and its bundle size is small due to its modular design.

npm v12 blocks install scripts by default, but supply chain attacks won't disappear. Learn why runtime execution, the Node.js permission model, and sandboxing still matter.

An implementation of the WHATWG URL Standard in JavaScript - jsdom/whatwg-url

pnpr is a pnpm-compatible npm registry server, written in Rust. It speaks the