Posts - The Miners

Rails Multi-Databases and Tenancy: How You Can Do It Today
Exploring how to implement multi-databases and tenancy in Rails 8.1 with SQLite and ActiveRecord::Tenanted

by Miguel MarcondesSeptember 19, 2025January 8, 2026

Portuguese version here: https://tech-pills.github.io/2025-09-18-Rails-Multi-Databases-e-Tenancy-como-fazemos-isso-em-2025/ Hey everyone! Hope you’re doing well. So, you’re building an application and you’ve reached that moment when you think: "Damn, how …

Women in tech: Ada Lovelace
The world's first programmer

by Kátia BernardesSeptember 18, 2025

Introduction "Who controls the past controls the future: who controls the present controls the past." These words, written by George Orwell in his novel 1984, …

Ctrl + Alt + Career: a shift from teaching to tech with the Codeminer42 Trainee Program

by Kátia BernardesSeptember 16, 2025

Introduction I believe one of the most common experiences in life is realizing that we no longer belong to a place that once made us …

The Road To JVM: How To Create A Brainfuck Interpreter

by Edy SilvaSeptember 11, 2025

While studying low-level programming and the fundamentals of computation, I stumbled upon Brainfuck, an esoteric programming language. It has only eight commands and is very …

DDD Studies: Between Fishermen and Developers
Reflections on my initial studies in Domain-Driven Design

by Miguel MarcondesSeptember 10, 2025September 19, 2025

Raw Portuguese version is here: https://tech-pills.github.io/2025-08-17-estudos-em-ddd-entre-pescadores-e-desenvolvedores/ Hello there! Hope you’re doing well. I’ve been studying Domain Driven Design more deeply in recent weeks, and I’m …

How To Measure Your Page’s UX with Web Vitals
Reasonning about SSR and Deployment

by João Victor VoglerSeptember 9, 2025

This post is part of our ‘The Miners’ Guide to Crafting Code‘ series, designed to help aspiring developers learn and grow. Stay tuned for more! …

What’s New In Rails 8.1 And Its Ecosystem

by Edy SilvaSeptember 5, 2025January 8, 2026

RailsWorld 2025 is currently taking place in Amsterdam, and, as always, DHH, the creator of Rails, has made some exciting announcements. In this article, we’ll …

Things I wish I knew before switching to React Native
A starter guide on what we need to know to transition from React to React Native

by Kátia BernardesSeptember 4, 2025September 26, 2025

Introduction The world is constantly changing, and the tech world, even more so. In recent years, we’ve seen a clear shift: more and more people …

Create CI/CD Pipelines with GitHub Actions
A practical introduction to pipelines for smarter deliveries

by Fernando LisboaSeptember 2, 2025

Continuous Integration and Continuous Delivery (or Deployment) – better known as CI/CD Pipelines – is a pillar of modern software teams. Although it may sound like another buzzword, it’s actually about something very practical: automating the way code moves from your local enviroment to production.

How To Structure Your Application Like An Artisan

by Edy SilvaAugust 28, 2025

When defining what a program is, the most fundamental definition you can find is: A program is something that transforms inputs into outputs Programming is …