The Ruby and Rails community linklog
Made a library? Written a blog post? Found a useful tutorial? Share it with the Ruby community here or just enjoy what everyone else has found!
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React on Rails and How to integrate React with Rails 8
React on Rails is a nice pre-built integration of React and Rails.
Rails MCP Server 1.5.0: Security Hardening and Sandboxed Environment Support
The Rails MCP 1.5.0 includes security improvements, and for the first time, it can be used with Agents like Code Claude. You get the benefit of asking Rails and Prism for static analysis of your app. [more inside]
Interface Segregation Principle
How to apply the Interface Segregation Principle in Ruby, and why taking it too far can hurt your design. Practical examples and trade-offs. [more inside]
UPDATE: Telegem Examples Added & Live Stars Counter!
Quick update on the Telegem Ruby Telegram bot framework: [more inside]
Ruby Absolute Value abs() Performance and Edge Cases
An overview of the abs method in Ruby and how to calculate Ruby absolute value
Building an AI agent inside a 7-year old Rails application
I work on a large Rails monolith used by social workers, where access control and correctness matter more than experimentation. [more inside]
Video of "Frontend Ruby with Glimmer DSL for Web" at Ruby on Rio 2025-06-06
A video has been uploaded of the Ruby on Rio 2025-06-06 talk I gave: “Frontend Ruby with Glimmer DSL for Web”. It covers Glimmer DSL for Web, the Frontend Ruby on Rails gem that won a Fukuoka Prefecture Future IT Initiative 2025 award by Matz, the creator of Ruby. Merry Christmas! https://www.youtube.com/watch?v=LY6ulYICuzE
Telegem v1.0.0: Async Telegram bot framework
JUST released Telegem, a modern Telegram Bot framework for Ruby inspired by Telegraf.js ! [more inside]
Ruby at 30: Anniversary Reflections and Matz’s Keynote
I invite you to dive into the Ruby Release 30th Anniversary and Matz’s keynote throug [more inside]
JsonMend - repair broken JSON
JsonMend is a robust Ruby gem designed to repair broken or malformed JSON strings. It is specifically optimized to handle common errors found in JSON generated by Large Language Models (LLMs), such as missing quotes, trailing commas, unescaped characters, and stray comments
Recommended Plan for Migrating from React.js To Opal Ruby & Glimmer DSL for Web
In a recent team retrospective meeting at my job, 5 team devs (all) voted for the future plan item “More use of Opal Ruby & Glimmer DSL for Web in the Rails Web App Frontend”. We are following a gradual rollout plan for migrating our React.js Frontend to Opal Ruby & Glimmer DSL for Web inside our Fintech Ruby on Rails web application. https://andymaleh.blogspot.com/2025/12/recommended-plan-for-migration-from.html
Liskov Substitution Principle
Master the Liskov Substitution Principle in Ruby. Learn to spot structural violations, handle duck typing, and write better object-oriented code. [more inside]
Notes on `direct` and `resolve` in Rails routing, via Fizzy
Diving into Rails’ lesser-known direct and resolve routing features, explored through newly open-sourced app Fizzy. Focuses on how these APIs are used in a real production Rails app and why they matter. [more inside]
When we talk about programming or human languages, things get interesting
When we talk about programming languages or human languages, things become truly interesting. https://rubystacknews.com/2025/12/19/parsing-taiwanese-like-code/ [more inside]
Introducing the Rails Superhero Card Generator
OmbuLabs and FastRuby.io introduces the Rails Superhero Card Generator, an AI-powered app that lets Rails developers create custom superhero cards featuring their own photo and a fun, coding-themed superhero name. The tool combines large language models and image generation, with a straightforward workflow built on Python/FastAPI, React, and LlamaIndex. Something just for fun! https://www.ombulabs.ai/blog/multi-modal-card-generator.html