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January 7, 2026 How libgd-gis turns Ruby into a real GIS engine For many years, Ruby quietly missed something important. Yes, Ruby is amazing at APIs, data processing, background jobs, and web platforms — but when it came to maps, graphics, and spatial data, Ruby was forced to step aside and let other languages do … Continue reading Ruby Can Now Draw Maps — And I Started With Ice Cream
January 6, 2026 Why ruby-libgd is becoming Ruby’s new graphics engine Yesterday something important happened in the Ruby ecosystem. I added a native sepia filter to ruby-libgd — Ruby’s new binding to the GD Graphics Library — and with it Ruby took another step toward regaining something it quietly lost over the last decade: a … Continue reading Ruby just got a real sepia filter
Ruby on Rails Developer | Ruby, Backend January 2, 2026 In late 2025, during a RubyConf presentation about disaster-response systems, an uncomfortable truth was stated publicly: Generating map tiles and images on the server is difficult in Ruby. RMagick and MiniMagick were too slow. ruby-gd is used, but it is poorly maintained. This was not … Continue reading Rebuilding Ruby’s Image Processing Layer: Why ruby-libgd Matters for GIS and the Future of Ruby
How RIZAP Technologies Turns Junior Developers Into Senior Ruby Engineers December 29, 2025 At RubyWorld Conference 2025 and Kaigi on Rails 2025, a talk by Tomohiro Umeda from RIZAP Technologies quietly delivered one of the most important messages for the future of Ruby engineering. Most companies would love to hire senior engineers. But in reality … Continue reading How RIZAP Technologies Turns Junior Developers Into Senior Ruby Engineers
Ruby 4 with Ruby::BOX December 24, 2025 Ruby 4 introduces one of the most important runtime features in the history of the language: Ruby::BOX. It allows Ruby to execute multiple isolated class worlds inside the same process, finally making it possible to load conflicting libraries, plugins, and user code safely. In this guide we will … Continue reading Running Ruby 4 with Ruby::BOX inside Docker (Alpine)
December 22, 2025 Reflections from RubyRelease30th and Matz’s Keynote As 2025 comes to an end and Ruby moves closer to the long-awaited release of Ruby 4, the Ruby Release 30th Anniversary Party, held on December 20, felt like more than a commemorative event. It was a moment of reflection—about history, values, and why Ruby continues … Continue reading Ruby at 30: A Community Built from Imperfection
December 19, 2025 How Ruby, Parser Theory, and Linguistic Precision Solved a Problem No One Wanted At RubyWorld Conference 2025, Mu-Fan Teng (鄧慕凡)—founder of 5xRuby and long-time Ruby community leader—presented a talk that quietly demonstrated something powerful: compiler theory is not limited to programming languages. In “Parsing Taiwanese Like Code”, Teng showed how a real-world … Continue reading Parsing Taiwanese Like Code
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
December 15, 2025 Lessons from Ruby World Conference 2025 At Ruby World Conference 2025, Masatoshi Seki (関 将俊) and Miwa Fukaya (深谷 美和) presented a talk grounded in something rare in our industry: more than 20 years of real testing history. Their presentation, “How to Create Today’s Recommended Tests”, introduces Ninja Testing — a testing … Continue reading Smart Test Suites with Ruby
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
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