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 →

🧰 Ruby Gems With Powerful Generators You Should Be Using in Your Rails Projects

December 9, 2025 A curated list of tools that accelerate development and keep your codebase clean One of the most underrated strengths of Ruby on Rails is its generator ecosystem. Beyond the native Rails generators, many gems ship with their own commands to scaffold authentication, background jobs, pagination, translations, slugs, geolocation, and much more. These … Continue reading 🧰 Ruby Gems With Powerful Generators You Should Be Using in Your Rails Projects →

🚦 Understanding CORS in Modern Web Development

December 5, 2025 A Complete Guide for Ruby on Rails, React, and React Native Developers Cross-Origin Resource Sharing (CORS) is one of the most misunderstood parts of modern web development — and one of the most common sources of errors developers face when building APIs. If you’re working with Ruby on Rails, React, or React … Continue reading 🚦 Understanding CORS in Modern Web Development →

Understanding bundle, bundler exec, and the Real Difference Between rails c and bundle exec rails c 🛠

December 2, 2025 In the Ruby and Ruby on Rails ecosystem, developers interact constantly with tools like Bundler and commands such as bundle exec or rails c. These commands may look similar, but each plays a crucial role in how your application loads and manages dependencies. Understanding these differences isn’t just a best practice — … Continue reading Understanding bundle, bundler exec, and the Real Difference Between rails c and bundle exec rails c 🛠 →

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 and Lisp — What Ruby Borrowed from Lisp’s Spirit

November 28, 2025 The creator of Ruby — Yukihiro “Matz” Matsumoto — has acknowledged that Ruby draws from a mosaic of languages: Perl, Smalltalk, Eiffel, Ada and Lisp. In his “Ruby And Its Neighbors” series, Noel Rappin turns to Lisp to reflect on what parts of Lisp — if any — live on in Ruby … Continue reading Ruby and Lisp — What Ruby Borrowed from Lisp’s Spirit →

🚀 Bundler 4.0.0.beta1: A Big Step Forward for Writing Clean and Modern Ruby

Bundler 4.0.0.beta1: A Big Step Forward for Writing Clean and Modern Ruby November 27, 2025 As Ruby developers, we know that writing Ruby isn’t just about shipping code or passing specs. Our workflow depends a lot on understanding the latest improvements in the ecosystem, keeping an eye on what’s being deprecated, and making sure our … Continue reading 🚀 Bundler 4.0.0.beta1: A Big Step Forward for Writing Clean and Modern Ruby →

Readable Specs vs. Clever Specs: Finding the Balance in Test Design

November 25, 2025 In every engineering team, the topic eventually comes up: Should our tests be concise and optimized, or explicit and easy to read? As engineers, we tend to enjoy clever solutions—those elegant one-liners or metaprogrammed helpers that feel powerful. But when it comes to test suites, clever is rarely the right choice. In … Continue reading Readable Specs vs. Clever Specs: Finding the Balance in Test Design →

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: →