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How to temporarily disable zsh saving history of interactive shell commands.

How we use Active Storage's direct upload feature for seamless file uploading in a GraphQL-powered Ruby on Rails application.

Nithin Bekal's blog about programming - Ruby, Rails, Vim, Elixir.

If you want to make a Ruby class comparable (ex. a b), all you have to do is implement the "spaceship" method, =, and include the Comparable module. But how do you implement the spaceship?

Explore caching strategies and tools in Rails, from low-level manual caching to popular tools and gems that make caching easier. We’ll learn how to identify effective caching opportunities and avoid common pitfalls.

A new mruby virtual machine implemented in C#. Contribute to hadashiA/MRubyCS development by creating an account on GitHub.

After 20 years, PNG is back with renewed vigor! A new PNG spec was just released.

Pay per crawl is a new feature to allow content creators to charge AI crawlers for access to their content.

URL to Any provides various URL conversion tools to transform web content into Markdown, PDF, images, and more formats.

A set of utility functions and types to use with Remix.run - sergiodxa/remix-utils

A comprehensive guide to using pgroll for safe, reversible Postgres migrations

As your test suite grows, you need ways to toggle certain kinds of tests on or off. Maybe you want to enable snapshot tests, skip long-running integration tests, or switch between real services and mocks. In every case, you’re really saying, “Run this test only if X is true.” So where does X come from? I like to rely on Go’s standard tooling so that integration and snapshot tests can live right beside ordinary unit tests. Because I usually run these heavier tests in testcontainers, I don’t always want them running while I’m iterating on a feature or chasing a bug. So I need to enable them in an optional manner.

An RSpec spec to verify `FactoryBot.build` doesn't interact with the DB.

When you're browsing the web, you wouldn't download random files from untrusted sources. So why are...

Extension for Visual Studio Code - Makes it easy to create, manage, and debug containerized applications.

The `satisfies` keyword allows you to assert that a certain value

Active Record adds the ability to safely remove associations by first deprecating them

Claude Codeには OpenTelemetry (OTel) のサポートがある。 これを使ってログやメトリクスを収集し、さくらのクラウドの「モニタリングスイート」に送信する試みをした。 Claude CodeのOpenTelemetry設定 otel-collectorで受ける otel-collectorから…

先日一部のClaude Codeユーザーの間で「プロンプトに”t-wadaさんの推奨する進め方に従ってください”と書くとテスト駆動開発のプラクティスを実践してくれる」というTIPSが話題になっていました。 なるほど、TDDやテスト駆動開発という言葉は広まりすぎて「意味の希薄化」が発生し、曖昧な理解のまま自動テストやテストファーストと混同され、それがLLMの学習データにも影響したが、人名を与えるとLLMに「具体的な参照点」を与え、より具体的なプログラミングスタイルに限定させる効果があったのか pic.twitter.com/p6SCPj8YdA — Takuto Wada (@t_wada) June 25, 2025 これは確かに面白い現象で、現にClaudeに直接質問するとt-wadaさんの知識を持っていることがわかります。そこから連想してClaude CodeがTDDをするトリガーとして使えるのなら面白いなと思い色々試してみました。 （ところでこの翌日、最近バイブコーディングにはまってSmalltalkのライブラリをLLMで書いているKent Beckも自著のタイトルを

Bill One Engineering UnitのPurchasing Groupでアーキテクトを務める豊田(@helloyuki_)です。今日は業務中に行っているAgentic Codingについて紹介したいと思います。 Agentic Codingとは 定義 Vibe Codingとの違い Claude Code…

I've never seen so many developers curious about leaving the Mac and giving Linux a go. Something has really changed in the last few years. Maybe Linux just got better? Maybe powerful mini PCs made it easier? Maybe Apple just fumbled their relationship with developers one too many times? Maybe it's all of it. But whatever the reason, t...

While setting up Claude Code in my Ruby projects, I wanted RuboCop to run automatically whenever I created or edited a file. The CLAUDE.md instructions suggested simply telling Claude to run RuboCop, but I found this approach flaky. Sometimes it would skip files or not run corrections until I explicitly asked, and would often try to fi...

Ruby 3.4 introduces Happy Eyeballs v2, dramatically reducing connection delays for external API calls in Rails applications

The Slack CLI is the easiest way to get started building on the Slack platform, including support for building Bolt apps added in our recent 3.0 release. The CLI is now open source and available on GitHub — read on for how we are continuing to support open source development for our tools. Developing in public Tooling that developers