From Reading to Mastery: Turning Metaprogramming Ruby into a Hands-On Learning Platform

December 17, 2025 Metaprogramming has always been one of Ruby’s most powerful — and most intimidating — features. While the book Metaprogramming Ruby by Paolo Perrotta is widely regarded as a classic, many developers share the same experience: it’s brilliant, but hard to truly internalize by just reading it. In a talk presented at RubyWorld … Continue reading From Reading to Mastery: Turning Metaprogramming Ruby into a Hands-On Learning Platform →

Building LLM-Powered Applications in Ruby: A Practical Introduction

Building LLM-Powered Applications in Ruby: A Practical Introduction December 12, 2025 (Based on Koichi Ito’s “Ruby × LLM Ecosystem” presentation at Ruby World Conference 2025)** Large Language Models (LLMs) have rapidly evolved from experimental chatbots to foundational components of modern software. They now augment workflows in customer support, content generation, data analysis, and even development … Continue reading Building LLM-Powered Applications in Ruby: A Practical Introduction →

Why Now Is the Right Time for PicoRuby

December 10, 2025 Based on the presentation script from RubyWorld Conference 2025 This article is based on the script of the presentation “Why Now Is the Right Time for PicoRuby”, delivered by Hitoshi Hasumi (ANDPAD Inc.) at RubyWorld Conference 2025. The original session was a 30-minute conference talk, and this text adapts its core ideas, … Continue reading Why Now Is the Right Time for PicoRuby →

RubyWorld Conference 2025: PicoRuby, mruby Girls, and the Future of Embedded Ruby

December 8, 2025 The RubyWorld Conference 2025, held in Matsue, Japan, showcased an unexpected star of the ecosystem: Ruby running on microcontrollers. While the event traditionally focuses on Ruby in web, enterprise, or academic settings, this year a significant amount of attention shifted toward embedded systems, thanks to PicoRuby and the community project mruby Girls. … Continue reading RubyWorld Conference 2025: PicoRuby, mruby Girls, and the Future of Embedded Ruby →

The Ruby Bindings Every Rails Developer Should Know

December 3, 2025 By Germán Silva Bindings are one of the most underrated yet critical pieces of the Ruby ecosystem. They are the bridges that connect Ruby to native libraries, databases, protocols, and even hardware. Bring Your Next Project to Life with High-Quality Development Don’t miss the opportunity to take your project to the next … Continue reading The Ruby Bindings Every Rails Developer Should Know →

Debugging in Real Life: How I Use Rails.logger and Docker Logs in My Daily Workflow

December 1, 2025 Debugging is one of those tasks that quietly shapes a developer’s day. It’s not flashy, it’s not glamorous, but it’s the difference between smooth development and losing an afternoon wondering why a request refuses to behave. Over the years working with Ruby and Rails, one of the tools I’ve learned to appreciate … Continue reading Debugging in Real Life: How I Use Rails.logger and Docker Logs in My Daily Workflow →

🚀 Ruby 4.0.0 Preview2 is Here!

November 24, 2025 Ruby keeps evolving, and the 4.0.0-preview2 release is packed with exciting changes. If you love clean code, emojis, and a little bit of magic in your programming, this one’s for you. What’s New? 💎 Nil Gets Smarter nil.to_a no longer surprises you, just like nil.to_hash. Less magic, more clarity. 🔗 Bindings Refined … Continue reading 🚀 Ruby 4.0.0 Preview2 is Here! →

Mastering Ruby’s Object Model and Metaprogramming in Rails:

November 18, 2025 How to Build Flexible, Scalable, and Maintainable Systems** By Germán Alberto Silva (senior Rubyist since 2005) Ruby is often described as an elegant, expressive language—but few developers understand how deeply powerful its object model truly is. And nowhere does this power matter more than in Ruby on Rails applications operating at scale, … Continue reading Mastering Ruby’s Object Model and Metaprogramming in Rails: →

💎 Unless: The Ruby Way to Not Say No

November 13, 2025 Sometimes, the smallest details in a language reveal the biggest lessons. Recently, during a code review, someone suggested I change this: if !name.nil? puts "Name exists" end to this: unless name.nil? puts "Name exists" end At first, it looked like a minor stylistic tweak. But in Ruby, style often carries philosophy. 🧠 … Continue reading 💎 Unless: The Ruby Way to Not Say No →

🔍 Understanding Ruby’s .. Range Operator in ActiveRecord Queries

July 21, 2025 When working with date ranges or numeric intervals in Ruby on Rails, writing clear and idiomatic code can be the difference between “just working” and being truly expressive. One tool that helps achieve this is Ruby’s inclusive range operator .. — and yes, it works beautifully with ActiveRecord too. 🔍 Understanding Ruby’s … Continue reading 🔍 Understanding Ruby’s .. Range Operator in ActiveRecord Queries →