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Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Ruby backend. No external APIs. No dependencies. Just pure speed and control. ✓ Zero external dependencies ✓ Lightning-fast rendering ✓ Production-ready & battle-tested Try the Live Demo → Read Docs Not a tutorial, not a benchmark — just experimenting … Continue reading A quick DEMO of Ruby-LibGD v0.2.4.
February 6, 2026 Lessons from Kaigi on Rails 2025 on SSE and Async Modern Rails applications increasingly depend on external systems: third-party APIs, background services, data pipelines, and—more recently—AI and LLM inference. While Rails itself continues to evolve in performance and concurrency, I/O latency remains largely unavoidable in many real-world scenarios. At Kaigi on Rails … Continue reading Tackling Inevitable I/O Latency in Rails
Validating a Native Ruby Gem on Ruby 4.0.1 February 5, 2026 Notes from the ruby-libgd 0.2.4 release With the release of Ruby 4.0, native extensions deserve a bit more attention than usual. Unlike pure-Ruby gems, C extensions depend not only on Ruby’s public API, but also on how headers, build tools, and packaging are wired … Continue reading Validating a Native Ruby Gem on Ruby 4.0.1
February 4, 2026 At Kaigi on Rails 2025, one talk stood out for being refreshingly honest about infrastructure. Not a tutorial. Not a product pitch. But a real report from production. In Hall Blue, yappu presented: “Kamalって便利？社内プロジェクト3つをKamal + AWSで運用した体験談” (Is Kamal useful? Operating three internal projects with Kamal + AWS) What followed was exactly the … Continue reading Kamal in the Real World: Lessons from Running Rails Apps on AWS
Opening the Heart of libgd-gis February 3, 2026 How Ruby Turns Coordinates into Maps (and Why Tests Matter) Maps look simple on the surface. You give them coordinates. They give you an image. But anyone who has gone even slightly deeper knows that coordinates are never just numbers. They are context. They are assumptions. They … Continue reading Opening the Heart of libgd-gis
Introducing Type Guard to Steep February 2, 2026 Type Narrowing for Real-World Ruby Applications Based on the RubyKaigi 2025 talk “Introducing Type Guard to Steep” by Takeshi Komiya CTO at Time Intermedia Inc., maintainer of rbs_rails and Rails type generators. Presented at RubyKaigi 2025. Context and Attribution This article is a technical analysis and expansion … Continue reading Introducing Type Guard to Steep
Rendering Incremental Points on Maps with Ruby and Rails January 30, 2026 When working with maps in Ruby or Ruby on Rails applications, most solutions assume that all geospatial data must be prepared upfront — usually as GeoJSON layers. While this works well for static datasets, it becomes inefficient when dealing with event-driven data such … Continue reading Rendering Incremental Points on Maps with Ruby and Rails
Making Maps with Ruby January 29, 2026 Static and animated cartography built directly from GeoJSON For a long time, generating maps from code meant working inside heavy ecosystems designed primarily for analysis. Those tools are powerful, but they are not always the right fit. In many practical scenarios, the problem is simpler and more concrete: … Continue reading Making Maps with Ruby
Understanding TypeProf: Design Goals, Limitations, and Effective Use in Ruby January 28, 2026 TypeProf is an official type inference tool for Ruby that has gained attention as part of the ecosystem surrounding RBS, Steep, and Sorbet. Despite this visibility, it is frequently misunderstood and often perceived as “not working” by first-time users. This article analyzes … Continue reading Understanding TypeProf: Design Goals, Limitations, and Effective Use in Ruby
January 27, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Ruby backend. No external APIs. No dependencies. Just pure speed and control. ✓ Zero external dependencies ✓ Lightning-fast rendering ✓ Production-ready & battle-tested Try the Live Demo → Read Docs From Disaster Prevention to High-Performance Maps … Continue reading Ruby Rendering Seismic Observation Data
Linking Ruby knowledge from the most remote places in the world. 