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January 5, 2026 How ruby-libgd brings a real raster engine back to Ruby For many years, Ruby quietly lost something fundamental: The ability to generate images natively, fast, and with full control. Yes, RMagick and MiniMagick exist. But they depend on external binaries, are slow, fragile in production, and unsuitable for things like: map tile … Continue reading Ruby Can Create Images Again
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
December 31, 2025 How Bloomo built a regulated trading system from scratch By Satoshi Kobayashi (noel), CTO – Bloomo Securities RubyWorld Conference 2025 – Day 1 Introduction At RubyWorld Conference 2025, Satoshi Kobayashi (小林悟史 / noel), CTO of Bloomo Securities Inc., delivered one of the most consequential Ruby case studies in recent years: “Building a … Continue reading Building a Securities Brokerage with Ruby and Go
Inside DENTIS, the cloud dental platform built by Medley, Inc. In 2025, at RubyWorld Conference, Toshio Maki — Engineering Manager and Head of the Dental Clinic Business Unit at Medley, Inc. — presented one of the most impressive real-world applications of Ruby in modern healthcare p30-2. The talk, titled: “Ruby powering Dental DX – Development … Continue reading How Ruby Powers One of the Most Complex Healthcare Systems in the World
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 at the Front Line of Disaster Prevention December 26, 2025 How Tokyo Gas Uses Ruby to Protect Millions of People During Earthquakes Based on the RubyWorld Conference 2025 presentation by Maika Yamaguchi, Tokyo Gas i-Net Corp. When we think about Ruby in production, we usually imagine web platforms, SaaS products, or developer tools. But … Continue reading Ruby at the Front Line of Disaster Prevention
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 23, 2025 Inspired by a talk by Yudai Takada (@ydah) at Hokuriku Ruby Kaigi 01 Advertise on RubyStackNews RubyStackNews is a niche publication read by Ruby and Rails developers worldwide. Our audience includes senior engineers, tech leads, and decision-makers from the US, Europe, and Asia. Sponsorship Options 📝 Article Sponsorship Your brand featured inside … Continue reading Building a DFA-Based Regular Expression Engine in Ruby
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
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