The Ruby and Rails community linklog
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Kamal, Rails deployments, and Rega turntables
Leverage Colima instead of Docker Desktop for Kamal-based Rails deploys on macOS. [more inside]
Can Ruby Read an X-Ray? Building a Medical Image Processor.
When I built ruby-libgd I included Sobel edge detection, Laplacian filter, Gaussian blur, and custom convolution as native C bindings. I knew those filters would be useful someday. [more inside]
Taking a Monthly Cut: Rails, Stripe Connect, and Recurring Billing
In the previous article, we looked at how to use Stripe Connect to take a cut from a one-time… [more inside]
Relay: early preview
Relay is an interactive llm.rb application built with HTMX, Roda, Falcon, and WebSockets. It serves as both a demo of llm.rb and an example of a Ruby-first architecture that keeps JavaScript light while still supporting background workers and a database-backed app. It includes a screencast on YouTube. Enjoy :)
Run RSpec in parallel with Flatware
Here’s one way how to parallize your test suite with RSpec.
The Ruby Browser War: Playwright vs. Ferrum (2026 Edition)
The New Guard For a decade, Selenium was the king of browser automation. It was slow,… [more inside]
The GraphQL Goldmine: How to Reverse Engineer APIs for Scraping
The “One Endpoint” Revolution In the old REST world, if you wanted to scrape a user’s… [more inside]
Ruby devs who use React end up with too much competition from the React community
I have observed that Ruby devs who use React often have a hard time finding a job because too many people know React…
My Rails harness for autonomous AI coding with Claude Code
Built on top of Jesse Vincent’s superpowers. I tweaked the workflow to fit Rails development: added opinionated conventions, stricter reviews and deterministic checks. [more inside]
🤖 Ruby events this week
🤖 Generated automatically by RubyEventsBot using ruby-libgd. Updated every 7 days. [more inside]
Need image dimensions from S3 or a CDN?
Need image dimensions from S3 or a CDN? Don’t download the whole file. FastImage reads the header—1-16KB instead of megabytes. 5-199x faster. [more inside]
How to Use ActiveRecord Without Rails
Very often I find myself writing small Ruby scripts to scrape data, process CSV files, or build a… [more inside]
biscuit-rails - a GDPR-compliant cookie consent banner for Rails 8
I was looking for a GDPR cookie banner for a number of projects, but all the available options are either abandoned or incompatible with Rails 8, so I wrote my own, with the help of Claude Code - biscuit-rails. Please try it out, all feedback is welcome. You can read more about my motivation for this project here
2D histograms in pure Ruby.
No Python. No stats gem. Just ruby-libgd and math. [more inside]
Is it Worth Becoming a Rails Developer in 2026? (The Honest Truth)
The “Dead” Language Paradox If you listen to Twitter (or X), Ruby on Rails died sometime… [more inside]
The tool I wish I had 25 apps ago
Every iOS app I’ve shipped over the last nine years started the same way: a Rails developer with a great web app, users who want it in the App Store, and weeks spent on Xcode, signing certificates, and Swift boilerplate that has nothing to do with the actual product. [more inside]
How well are the tests covering the code?
Test coverage metrics are one of the tools for evaluating the quality of tests without reading them. Which is kind of relevant in the age of coding agents. So here, a short light intro to 4 different ones: line, branch, path and condition coverage. How well are the tests covering the code?
Seamless PR's size labeling
Tag PR sizes with 0 setup, 0 lag, and no GH action quota usage for free Customization and proactive labeling included [more inside]
Advanced Domain Modeling Techniques for Ruby on Rails – Part 2
One of the most frequent code smells in Rails is an excessive use of inheritance. A serious drawback from using inheritance to achieve polymorphism is the implicit coupling it creates between parent and child classes. Polymorphism with Strategies
Which of these come from Ruby and which from Rails?
• ‘person’.pluralize • 3.days.ago • params.permit(:name) • [1,2,3].second • before_action :authenticate [more inside]
Rauversion: an open source platform for independent music communities
We’ve been building Rauversion, an open source platform for independent music labels, artists, and cultural communities. [more inside]
Glimmer DSL for Web 0.8.3 Preventing Components from Shadowing HTML Elements
Glimmer DSL for Web (Fukuoka Award Winning Ruby-in-the-Browser Frontend Framework for Rails) had a new release in version 0.8.3, which now raises an exception plus a correction hint if the user attempts to define a component or a component slot with a name that shadows an existing HTML element…
Stripe Connect Simplified: Routing Payments in Your Rails App
Building a SaaS where users pay you is easy. But what if you want to build a marketplace? Like… [more inside]
The analogue programmer in the land of LLMs
Oldschool programmer thoughts on LLMs and the cognitive debt hidden inside convenience. Read more
SVG in Ruby 🚀
Just published: A complete guide to generating scalable, interactive vector graphics. [more inside]