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Luiz H. B. Lago

Building an Open Source WhatsApp HTTP API for My Projects

Building an Open Source WhatsApp HTTP API for My Projects

Recently, I needed to integrate WhatsApp into one of my applications, and if you’ve ever gone down this road, you know it can be a real pain. I decided to try whatsapp-web.js. It’s not "official", and there’s a risk of account blocks if you

How I used Livewire to replace a websocket events in a real-time application

How I used Livewire to replace a websocket events in a real-time application

Today, I want to share a real-world story of how I replaced WebSockets in a Laravel project using Livewire and how you can do the same. This journey began with a competitive programming platform I built for a nationwide contest involving several universities and developers from all over Brazil. The

Build your own Home Server and Made It Publicly Accessible on the Internet - Part 2

Build your own Home Server and Made It Publicly Accessible on the Internet - Part 2

In the first part of this series, we went over what we can use to build a home server, how to set up Docker for service management and organize our enviroment in a clean and traceable way. Now it’s time to take things one step further, we’re going

Build your own Home Server and Made It Publicly Accessible on the Internet - Part 1

Build your own Home Server and Made It Publicly Accessible on the Internet - Part 1

Running your own home server is one of the most empowering things you can do as a backend enthusiast, hobbyist, or tech-savvy tinkerer. Whether you're hosting personal web projects, streaming your own media library, managing automated backups, or simply learning more about how servers and networks work, a

Why I Won’t Reply — and Why This Link Is All You Deserve

Why I Won’t Reply — and Why This Link Is All You Deserve

Let’s address the elephant in the room: you said something so deeply dumb, dishonest, or desperate looking for attention that it doesn’t even deserve my time — and yet, here you are, receiving a custom-made link. This post isn’t a conversation. It’s a verdict. You lost the

How I Won a Parallel Programming Marathon Without Knowing Parallel Programming

Problem Solving

How I Won a Parallel Programming Marathon Without Knowing Parallel Programming

Introduction: What Is Parallel Programming? Parallel programming is a computing paradigm that allows tasks to be divided and executed simultaneously. It leverages multiple processing units—like CPU cores or GPU threads—to perform large computations more efficiently. While the CPU (Central Processing Unit) is designed for general-purpose, sequential tasks, the

Tackling the N+1 Query Problem with Automatic Relation Loading

Tackling the N+1 Query Problem with Automatic Relation Loading

Understanding the N+1 Query Problem In Laravel applications, the N+1 query problem arises when your code executes one query to retrieve a set of records and then executes additional queries for each record to fetch related data. This pattern can lead to performance issues, especially with large datasets.

The Art of Naming Things in Software Development

Naming things seems simple—until you actually have to do it. Whether it's a variable, a function, a database column, or an entire microservice, finding the right name can feel like trying to name a child you haven’t met yet. It’s hard, and it matters a