A deep dive into how GenServer works in Elixir, using a practical caching example to dissect every part of its lifecycle and internal API.

The Anatomy of a GenServer

Burnout is a growing concern in engineering leadership. This article explores recognizing early signs, understanding root causes, and implementing actionable strategies to prevent burnout while fostering a sustainable engineering leadership career.

Burnout in Engineering Leadership: How to Recognize and Prevent It

Career growth in software engineering isn’t just about writing better code—it’s about taking ownership of your trajectory and focusing on real-world impact.

Owning Your Career as a Software Engineer: Beyond Code to Real Impact

Psychological safety is the foundation of high-performing engineering teams. Learn how to foster an environment where engineers feel safe to share ideas, admit mistakes, and collaborate without fear.

Building a Culture of Psychological Safety in Engineering Teams

Learn how to integrate OpenAI with Phoenix LiveView to build an intelligent search bar that dynamically translates user queries into structured filters.

Creating an AI-Powered Search Input With Phoenix LiveView

A proof of concept for a simple blog using pure Elixir, with Notion as a CMS and only three dependencies: Cowboy, HTTPoison, and Jason.

Building a Minimal Blog in Pure Elixir with Notion as a CMS

Changing a field type in an Ecto embedded schema requires both a code update and a database migration. This guide walks through the process, ensuring data consistency and avoiding common pitfalls.

How to Change a Field Type in an Ecto Embedded Schema with a Migration

Small, thoughtful ways to support each other at work can have a big impact. Normalizing simple signals—like Slack statuses or images—helps create a healthier, more mindful workplace.

Small Signals, Big Impact: How Tiny Acts of Self-Care Can Transform Workplace Well-Being

A personal reflection on mental health in the software industry, the pressures developers face, and resources to support well-being.

Help others by sharing your experiences in mental health

Learn how to create a non-primary key UUID field in an Ecto schema using PostgreSQL's `uuid_generate_v4()` function.

Generate UUID fields in Phoenix with Postgresql

A detailed guide on migrating a Phoenix application from a regular database to a multi-tenancy architecture using Ecto.

A dive into database multi-tenancy in Elixir with Ecto

A reflection on the pressures of the tech industry and the importance of maintaining a healthy work-life balance.

The Rockstar Syndrome in Tech

Learn how to use PostgreSQL WITH queries to efficiently generate breadcrumbs in a storage system.

Generating Breadcrumbs with PostgreSQL WITH Queries

A Rails gem for integrating the Bootstrap-based admin theme SB Admin 2, making asset management easy.

Bootstrap SB Admin Base V2 for Rails

Installing older versions of the therubyracer gem on Mac OS X Yosemite can be tricky. Here’s how to fix it.

Install Old Versions of therubyracer Gem on Mac OS X

Learn how to scrape Pokémon data from the web using Ruby and Nokogiri.

Web Scraping Pokémon Data with Ruby and Nokogiri

A simple trick to use a Ruby hash like a class object, providing dynamic method access.

Using a Ruby Hash Like a Class Object

Learn how to use Pipe Viewer (pv) to monitor the progress of burning images to microSD cards for Raspberry Pi.

Monitoring microSD Image Burning with Pipe Viewer

An introduction to p5.js, covering basic concepts and building a simple T-Rex game inspired by Chrome's offline game.

Getting Started with p5.js and Building a T-Rex Game

A customized RTL version of the SB Admin 2 Bootstrap theme for Rails applications.

RTL Version of SB Admin 2 for Rails

Learn how to quickly put your local Rails application online using Ngrok and Pow.

Quickly Share Your Local Rails App with Ngrok and Pow

A simple Pomodoro timer with a minimal graphical interface built in Ruby using Gosu.

Simple Pomodoro Timer with Ruby and Gosu

Learn how to set up a Flask web application on a Raspberry Pi to interact with physical components for an IoT project.

Flask and Raspberry Pi for IoT Projects

A simple Rails blank template app for quickly starting new projects with preconfigured features.

Rails Blank Template App for Quick Prototyping

Develop a simple video game using Gosu and Ruby.

Become a videogame developer master with Gosu and Ruby

Learn how to create a tiny internet of things project with Arduino and Ruby on Rails.

Physical software made easy with Arduino and Ruby on Rails

Let's see how to consume a RESTful API with AngularJS.

Consuming a RESTful API faster with AngularJS and Yeoman

Create a simple geosearch form with MongoDB and Geocoder Rails gem.

Geosearch with MongoDB and Geocoder

How to develop a RESTful API in Ruby on Rails.

Create a super fancy API with Grape

Learn how to convert your Javascript library or any other asset into a Rails gem.

Gemify your assets in less than 10 minutes

This is a post in where we're going to develop a conversational bot with the help of AIML in Ruby on Rails.

Iván González Sáiz

Software Engineer