🔖 Bookmarks

Build a copy-paste custom element for image uploads that works anywhere in your Rails app. Drag-and-drop, previews and form integration without any framework overhead.

Show users live progress on long-running background jobs using Rails 8.1's structured event reporter and Active Job Continuations, with no polling and no per-job broadcast wiring.

Redesign prep matters, but what does it actually look like when AI is in the room?

The next level for nested forms with Stimulus: add edit, delete and drag-and-drop reposition features.

Here's how you can have a PaaS-like experience while keeping all of your services in Europe with AppSignal and Hatchbox.

A six-phase guide to migrating a Rails app from Sprockets to jsbundling-rails + esbuild. Covers jQuery, Bootstrap, Docker, gotchas, and lessons learned.

Stop interpolating CSS classes with ternaries in your ERB templates.

This is the story of how our Developer Productivity team extended and rolled out rubyfmt, our Rust-based zero-config, ultra-fast autoformatter across the world's largest Ruby codebase.

… and check why 5600+ Rails engineers read also this

Build per-plan API rate limits (free, pro, enterprise) using Rails 8.2's dynamic rate_limit options, with no Rack::Attack or custom middleware.

Rails has better tools than html_safe for building HTML safely in your helpers and views.

A story of validating product demand on a $2K budget with 128 cold-traffic signups, an A/B winner at 95% confidence, and a sequenced playbook founders can run themselves.

AI's real efficiency comes from picking the right problem to solve. Our consulting team shares how to find the AI use case worth a real solution.

Lightweight date picker, event scheduler, and timeline components for JavaScript. Works with React, Vue, and Angular. Free and open source.

Learn how to build UI patterns for modal windows and prompts using the <dialog> and popover web features.

I'm running 44 AI agents across multiple projects. Each one is just a model pointed at a folder.

An overview of what's new in language features, frameworks, runtimes, build tools, testing, and more.

Every month I walk to the end of my driveway and stuff my mailbox with a tall stack of letters. Actually, I have to repeat this process a few times, because sta...

Let’s imagine we have a database table of Pokémon, like so1:

Most AI SEO advice is unproven. We tested what ChatGPT, Claude, and Perplexity actually read on our own site. Six LLM visibility techniques that worked, eight that didn't, and the metrics to tell the difference.

Rails 8.1 adds Rails.app.creds to unify ENV variables and encrypted credentials behind a single API.

In this article, we will look at how the LinkedIn engineering team rebuilt the Feed and the challenges they faced.

rbenv vs rvm vs asdf vs mise vs chruby vs direnv

An Open Source Claude Code skill based on our 60,000+ hours of Rails upgrade experience. Learn how our opinionated methodology teaches Claude Code to upgrade Rails, fast.

RSpec model specs: 6 minutes for 3,780 examples. Minitest model tests: 66 seconds for 9,835 tests. Both parallel. I built a 6-gate multi-agent pipeline in Claude Code to make the migration work.