Author: ggerman

Software Developer | Ruby on Rails | Embedded Systems Enthusiast I’m a backend developer with 10+ years of experience building scalable systems and crafting robust APIs with Ruby on Rails, Python, and PHP. I thrive on delivering confident solutions, leveraging tools like AWS, Docker, and RSpec to ensure stability and performance. Beyond coding, I love blending hardware and software in IoT projects, creating innovative solutions with Arduino C++ and MicroPython. Always learning, always solving.

ruby-libgd: The Modern Ruby Image Library You’ve Been Sleeping On

ruby-libgd: The Modern Ruby Image Library You've Been Sleeping On March 30, 2026 Reading time: 8 minutes Status: Benchmark-driven, production-ready 🚀 See the LIVE DEMO in action MapView Render maps directly from your backend no external APIs required. Fast, controlled, and production-ready. Try the demo → Executive Summary After extensive benchmarking against RMagick, ChunkyPNG, and … Continue reading ruby-libgd: The Modern Ruby Image Library You’ve Been Sleeping On →

libgd-gis: Filling Ruby’s Graphics Gap and Building an Ecosystem

libgd-gis: Filling Ruby's Graphics Gap and Building an Ecosystem March 26, 2026 For years, generating map tiles, GIS visualizations, and fast raster graphics in Ruby has been a painful experience. ImageMagick derivatives were slow. External services added latency and complexity. The old ruby-gd binding languished unmaintained. Then ruby-libgd arrived - a modern, actively maintained binding … Continue reading libgd-gis: Filling Ruby’s Graphics Gap and Building an Ecosystem →

FFI: How Ruby Talks to C

March 25, 2026 Published on RubyStackNews 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 Ruby is a … Continue reading FFI: How Ruby Talks to C →

The Odin Project: Why It’s One of the Best Ways to Learn Web Development

March 24, 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 If you’re looking for a structured, … Continue reading The Odin Project: Why It’s One of the Best Ways to Learn Web Development →

Ruby Sees the World: Automatic Measurement from Photos

Ruby Sees the World: Automatic Measurement from Photos March 23, 2026 Published on RubyStackNews What if Ruby could look at a photo of a house and tell you the width of the door, the height of the windows, and the total wall length? That is not science fiction. It is photogrammetry. And it is buildable … Continue reading Ruby Sees the World: Automatic Measurement from Photos →

Can Ruby Read an X-Ray? Building a Medical Image Processor

Can Ruby Read an X-Ray? Building a Medical Image Processor March 23, 2026 Published on RubyStackNews Nobody expects Ruby to process medical images. That is exactly why I tried it. This article is about building a medical image analysis prototype in pure Ruby using ruby-libgd as the rendering and pixel manipulation engine. No Python. No … Continue reading Can Ruby Read an X-Ray? Building a Medical Image Processor →

FastImage Overview

FastImage Overview March 20, 2026 The Gem: Fetch image dimensions and type without downloading the entire file. The Problem Your app needs image dimensions from remote URLs (S3, CDN, etc.). Downloading 5MB just to learn the size is wasteful. The Solution FastImage reads only the file headers—typically 1-16KB—to determine size and type. Key Features Pure … Continue reading FastImage Overview →

2D Histograms in Pure Ruby

2D Histograms in Pure Ruby March 18, 2026 Published on RubyStackNews One of the most useful tools in exploratory data analysis is the 2D histogram. Not the bar chart kind — the density map kind. Given a cloud of points, it answers a simple question: where do most of them live? This article shows how … Continue reading 2D Histograms in Pure Ruby →

Ruby on Rails — Complete Reference of Methods, Classes & Features Not in Ruby

Ruby on Rails — Complete Reference of Methods, Classes & Features Not in Ruby March 17, 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 & … Continue reading Ruby on Rails — Complete Reference of Methods, Classes & Features Not in Ruby →