Running untrusted code safely requires more than separating it from the host. You also have to control what that code can reach.

When you’re working with Ruby, setting up ruby in your development environment is one of the most important tasks. As you start creating or modifying projects, managing different versions and configuring dependencies can become a challenging task. In this guide, you’ll learn how to use rv, a very fast version and package manager for Ruby to get started in minutes instead of hours. You’ll be amazed of how fast the commands run and you won’t need wait to compile anything ever again. Install On m...

RuboCop 1.89 is out, and it comes with the usual assortment of new cops and bug fixes. But there’s one theme running through this release that I’m particularly excited about, and that’s what I want to talk about today: RuboCop is finally learning to look beyond a single file.

A beautiful, featureful dashboard for Solid Queue. Live charts, failure triage, bulk retries, fleet health, and recurring-task control. - cmer/solid_queue-flightdeck

After six years of building a Ruby implementation in Rust, it’s time to archive Artichoke. This is a look back at why it started, what we built, and why I’m letting it rest.

At conferences and meetups, and in conversations online, many Ruby developers have asked me about Ruby Central and my disagreement with them. This post is my attempt to answer the questions I’ve been getting over and over, covering: 1) what is Ruby Central doing now? 2) has the dispute over Bundler and RubyGems been resolved? 3) what has Ruby Central said about the dispute? and 4) what can Ruby developers do now?

As you may know, one area of Ruby performance optimization that particularly interests me is memory usage. Given that most Ruby deployments rely on fork, improving Copy-on-Write performance is generally where you get the biggest bang for your buck, but that only helps with the somewhat static part of an application heap.

Using RSpec's functionality expressively helps to draw focus to the right parts of a test, but it's not always easy to understand how best to use it.

An open source Rust library that turns any office document into clean GitHub-Flavored Markdown, with bindings for Node.js, Python, and the browser. Try it here: the conversion runs as WebAssembly, in your browser.

Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.

Learning how htmx works by building one from scratch.

🌊 Interactive CLI tool to update GitHub Actions to latest versions with SHA pinning - azat-io/actions-up

How to protect your npm package from being stolen in a supply chain attack and improve its position in security ratings

Popular npm packages keyv and cacheable compromised.

Forking tsc to support Go's defer.

Two versions of lodash walk into a tree

Lightweight Result type for TypeScript with generator-based composition. - dmmulroy/better-result

HTMX 4.0, the first JavaScript library to release exclusively on the Game Boy® platform! Experience the power of HTMX, now on your favorite portable handheld. Four levels of pickle-collecting excitement.  Squish client-side JS down to size, avoid ...

With the right tools, coding agents can run autonomously, in parallel, and be reachable from anywhere. Here's how I've stitched them together.

"Prototype pollution isn't a Node or library issue, it's on the app's guard to thwart code vulnerabilities!"

Powerful, fast and expressive logging for TypeScript and JavaScript

📝 tslog - Universal Logger for TypeScript and JavaScript - fullstack-build/tslog

Chrome Built-In AI、皆さん使っていますか？登場して2年くらいの技術になりますが、今年の春についに Prompt API が Chrome にデフォルトで組み込まれるようになりました。

Universal provider proxy for OpenAI Codex & Claude Code — use any LLM with Codex CLI, App, SDK, and Claude Code.

Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code - lidge-jun/opencodex

Codex-native architect orchestration with Luna and Terra implementation lanes and mandatory fresh Sol review. - DannyMac180/sol-advisor

🦀 A friendly terminal UI for rsync, written in Rust. Reusable profiles, an honest dry-run diff, and live progress, even over SSH. - westpoint-io/lazyrsync

Self hosted Wiki + Jira-style AI native issue tracker on Cloudflare Workers - TAJD/projektor

A self-hosted issue tracker and wiki where AI agents are the primary client. Everything a person does in the browser, an agent does over MCP.

A real browser that runs directly inside your terminal.