Tutorials
The Automated Roadmap to Upgrade Rails - FastRuby.io
The Roadmap to Upgrade Rails opens a new window is FastRuby.io’s discovery product that helps teams plan and execute their Rails upgrade projects.
We’re happy to introduce an Automated Version of the Roadmap, powered by an AI agent, available com...
Optimizing Garbage Collection in Rails with Autotuner
Autotuner is a tool designed to optimize the performance of Ruby on Rails applications by fine-tuning the garbage collector (GC). It integrates seamlessly with Rails as middleware and collects data on GC activity between requests. Based on this da...
How to Expose Your Rails Localhost Securely Using Cloudflare Tunnel
When you’re building web applications, most of the work happens safely on localhost. But every now and then, you need the outside world to reach into your development environment. Maybe you’re integrating a payment provider that sends webhooks, te...
How to Integrate AWS SES with Ruby on Rails: A Step-by-Step Guide | Cengiz Gürtusgil
Learn how to configure Amazon SES with Ruby on Rails using the aws-actionmailer-ses gem. This guide covers everything from IAM user setup and ActionMailer configuration to sending your first test email via the Rails console.
Load Path in Ruby - how it works? - Blog - Visuality
Recently, I encountered a weird Ruby error: Gem::LoadError: You have already activated X, but your Gemfile requires Y.
A quick Stack Overflow search and a few commands with Bundler, and it was fixed. But it got me thinking: why did it happen in th...
Beautiful Rails confirmation dialogs (with zero JavaScript) | Boring Rails: Skip the bullshit and ship fast
Turbo’s data-turbo-confirm attribute is convenient for quick confirmation dialogs, but the native confirm() prompt it triggers looks dated and out of place. If you want a styled confirmation dialog that matches your app’s design, the traditional a...
Add snow to your app with Stimulus | Rails Designer
With the end of 2025 near, let’s build something fun: a snow effect for your (Rails) app or site (built with Perron?) using one Stimulus controller. Snow will fall from the top of the viewport, pile up at the bottom and you can sweep it away by dr...
Requestkit: test and send webhooks and API requests in development | Rails Designer
Requestkit is inspired by Stripe’s CLI to send payloads to your app, but it instead can send (and receive!) any payload. It runs entirely on your machine. It’s a local HTTP server that captures incoming HTTP requests (webhooks) and send outbound r...
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