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.

The Performance Impact of Memoization on Modern Ruby: Understanding Object Shapes in Ruby 3.2

November 20, 2024 In Ruby 3.2, a significant internal change was introduced to optimize object access: object shapes. This feature addresses some critical performance challenges and limitations in the language. In this article, we’ll explore how object shapes work, their implications, and the performance impact on commonly used idioms like memoization. The Problem with Accessing … Continue reading The Performance Impact of Memoization on Modern Ruby: Understanding Object Shapes in Ruby 3.2 →

Microservices and the Complexity of Distributed Systems: A Reflection on Fowler’s First Law

November 18, 2024 This article is inspired by Martin Fowler’s classic piece, “Microservices and the First Law of Distributed Objects,” originally published on August 13, 2014. While it has been several years since its release, I believe it still offers valuable insights that remain relevant today. 🚀 Need Expert Ruby on Rails Developers to Elevate … Continue reading Microservices and the Complexity of Distributed Systems: A Reflection on Fowler’s First Law →

Mastering the Gemfile: A Deep Dive into Bundler Best Practices

February 4, 2025 Introduction The Gemfile is a cornerstone of any Ruby project, defining dependencies and ensuring consistent environment setup. However, beyond just listing gems, a well-structured Gemfile can enhance security, maintainability, and performance. In this article, we will explore best practices, including source selection, grouping, versioning, and leveraging Git-based dependencies. 🚀 Need Expert Ruby … Continue reading Mastering the Gemfile: A Deep Dive into Bundler Best Practices →

Small and Little Things: Removing Substrings from Arrays in Ruby

November 20, 2024 In software development, sometimes the "small and little things" in our code can cause unexpected complications. Handling seemingly straightforward tasks like cleaning up an array can introduce subtleties that require careful thought. For example, let’s tackle a problem where we need to remove elements from an array if they are substrings of … Continue reading Small and Little Things: Removing Substrings from Arrays in Ruby →

Unveiling the Hidden Gems of Coding: A Developer’s Guide to Easter Eggs

February 3, 2025 Introduction: As software developers, we’re often immersed in problem-solving, debugging, and optimizing our code. Our days are filled with syntax, algorithms, and performance enhancements. But every now and then, the world of programming surprises us with something completely unexpected—an Easter egg. Not the chocolate kind (though that would be nice, too), but … Continue reading Unveiling the Hidden Gems of Coding: A Developer’s Guide to Easter Eggs →

Exploring Currency Data with BCRA API: A Practical Guide

November 19, 2024 In the world of software development, playing with APIs is an excellent way to expand your skills and gain insight into real-world applications. Recently, I discovered the BCRA API (Banco Central de la República Argentina), which provides data on currency exchange rates and statistics. This article walks through how I explored this … Continue reading Exploring Currency Data with BCRA API: A Practical Guide →

Adding Gravatar to Your Rails App with GitHub Copilot

February 3, 2025 Introduction Gravatar is a globally recognized avatar service that allows users to maintain a consistent profile picture across various platforms. Integrating Gravatar into a Ruby on Rails application is straightforward, especially with the help of GitHub Copilot. In this article, we’ll explore how Copilot simplifies the process of adding Gravatar support to … Continue reading Adding Gravatar to Your Rails App with GitHub Copilot →

Unlocking the Mysteries of Ruby Symbols: A Guide for the Curious

November 15, 2024 If you've ever wondered what makes Ruby symbols tick, you're in the right place. A Symbol in Ruby is more than just a quirky cousin of strings; it's a representation of a named identifier inside the Ruby interpreter. Think of symbols as labels—compact, immutable, and ridiculously efficient. They're not just "strings with … Continue reading Unlocking the Mysteries of Ruby Symbols: A Guide for the Curious →

Ruby, RVM and Docker: A Match Made in Dev Heaven (or Not?)

November 14, 2024 When it comes to managing multiple Ruby projects with different versions, developers are often caught between two powerful tools: RVM (Ruby Version Manager) and Docker. Each tool has its strengths, but which one is right for you? Let’s break down these technologies and throw in a couple of jokes to keep things … Continue reading Ruby, RVM and Docker: A Match Made in Dev Heaven (or Not?) →

Introduction to Kafka with Ruby: Installing and Integrating Shopify and SendGrid

November 13, 2024 Introduction Kafka has become a popular tool for managing data streams across distributed systems, making it a natural choice for applications that need to communicate with multiple services reliably and efficiently. It’s particularly valuable for applications that work with real-time data or need to ensure reliable data delivery across various systems. In … Continue reading Introduction to Kafka with Ruby: Installing and Integrating Shopify and SendGrid →