Ruby On Rails

Tutorials

Kamal's missing tutorial – how to deploy a Rails 8 app with Postgres to your VPS

Kamal's missing tutorial – how to deploy a Rails 8 app with Postgres to your VPS Last updated: Jan 2026. Now fully updated for Rails 8.1+ and Kamal 2.8+! Rails 8 is out. And with it Kamal 2, the new default way of deploying Rails apps. For those unfamiliar, Kamal is a tool that puts your Rails app in a Docker container, whic...

Ruby Skills: Teaching Claude Code About Ruby's Tooling And Ecosystem - st0012.dev

Ruby Skills: Teaching Claude Code About Ruby's Tooling And Ecosystem - st0012.dev Eventually you add something like Use chruby 4.0.0 to run Ruby commands in either the project or your user-level CLAUDE.md. While this is frustrating, I don’t blame Claude. Ruby has at least seven version managers - rbenv, chruby, rvm, asdf, mise...

Killing IDORs in Rails Applications: Make the Database Say "No" By Default

Killing IDORs in Rails Applications: Make the Database Say "No" By Default Rails is great at making the happy path simple. You need a record, you write Model.find(params[:id]). You need an authorization check, you add a line under it. The code reads well, it feels clean, it passes review, and it's also the reason why per...

Implementing OAuth in Hotwire Native apps with Bridge Components — Mike Dalton

Implementing OAuth in Hotwire Native apps with Bridge Components — Mike Dalton OAuth is a common technique for registering and authenticating users on web and mobile apps. Many interactions in a Hotwire-based Rails app work without requiring native code but that’s not the case for OAuth. Hotwire Native uses embedded web vie...

Responsive code formatting on web

Responsive code formatting on web Responsive Web Design was a hot topic over a decade ago. I'm old enough to remember Nicolas Barrera delivering a talk about it on wroclove.rb. It now feels strange not to design interfaces mobile-first, which is the primary screen for consuming co...

Simple Tailwind CSS 4 Setup for Jekyll - Andy Croll

Simple Tailwind CSS 4 Setup for Jekyll - Andy Croll Simple Tailwind CSS 4 Setup for Jekyll Tailwind CSS 4 changed how configuration works. The JavaScript config file has been replaced by CSS-based configuration using @theme directives and uses the tailwind CLI to shake down the generated tailwind c...

What Shoulda Matchers Is Actually Doing For You

What Shoulda Matchers Is Actually Doing For You Rails model specs full of setup and error-message checks? There’s a reason so many teams replace them using shoulda-matchers. We’ll look at what those expectations are doing, how they make your tests more resilient to changes, and a lot less noisy.

Supercharge Your Claude Code Workflow: Running Multiple AI Sessions in Parallel with Git Worktrees Speed up your AI-assisted development by running multiple Claude Code sessions simultaneously. Git worktrees with automatic port and database isolation.If you're using Claude Code for software development, you've probably hit this wall: you want t...

Getting Started With Vite on Rails - FastRuby.io | Rails Upgrade Service

Getting Started With Vite on Rails - FastRuby.io | Rails Upgrade Service A practical guide to setting up Vite in your Rails app for faster Javascript development. Includes step by step instructions, tips, and real-world examples.A few months ago, we were working on a Rails 7 app using Webpack 5. One of the main problem...

Building Smart Retry Strategies in Rails with Error-Aware Delays | Code With Rails

Building Smart Retry Strategies in Rails with Error-Aware Delays | Code With Rails Use the new retry_on error argument to build intelligent retry strategies that respect rate limits, handle transient failures, and fail fast on unrecoverable errors. A recent Rails change lets your job retry logic inspect the actual error that occ...

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