Blog on Diogo Moreira

Sobre colecionar música em vinil

Fri, 10 Apr 2026 00:00:00 +0000

Desde abril do ano passado tenho me engajado em um novo hobby: colecionar vinil.

Não houve um motivo específico pelo qual eu decidi começar que não fosse simplesmente o gosto pela música e por toda as formas expandidas de apreciar um álbum. Se tornou quase um ritual onde eu paro um pouco a correria do dia-a-dia e tiro um tempo pra escutar um álbum do começo ao fim, ler as letras e me desconectar um pouco.

How to recognize poor quality Flash Memory Cards with F3

Sat, 21 Feb 2026 11:25:00 -0300

Hi everyone, this is a quick post just to open this section on my website where I’ll share some things I learned along the way.

Lately, I’ve been looking for flash cards for two of my consoles, a Nintendo Switch and a R365 (a portable emulation console) and as I was noticing that the prices vary significantly across marketplaces, I decided to investigate a little further and see how I can check if the card I bought was indeed delivering what was promised and that it wasn’t counterfeit.

Sealed and Final in Java 17+

Sun, 18 Feb 2024 00:00:00 +0000

Java 17 brought the Sealed Classes feature, which allows greater control over how to structure a project’s class hierarchy. In this post, we’ll discuss this feature that permits classes and interfaces to have more control over their allowed subtypes.

The keywords sealed, non-sealed and permits are the ones to be used in the syntax of sealed classes in Java. When we mark a class as sealed, it is as if we were marking it as final, which does not allow other classes to extend it. So, we add classes that can extend a sealed class with the help of permits keyword and then we list the permitted classes.

Mocking Google Cloud Storage Objects with Java

Sun, 10 Dec 2023 00:00:00 +0000

Google Cloud Storage is widely used as a cloud storage service to allow users to store and retrieve objects. When working with it, it’s essential to write efficient unit tests to ensure the application behaves as expected.

Introduction

One common challenge in unit testing is dealing with external dependencies, that’s when we use mocks such as Blob Objects from Google Cloud Storage, which may not be readily available during testing or needs to be mocked due to pricing restrictions. This blog post will explore how to mock Blob Objects from Google Cloud Storage for efficient unit testing.

Versioning .dotfiles

Fri, 28 Apr 2023 00:00:00 +0000

💡 tl/dr; You can set up a new system using dotfiles and an installation script in minutes. This post tries to explains some things about dotfiles and we will build a repository together

Dotfiles are configuration files typically stored in a user’s home directory (the directory represented by the symbol ~ on Unix-based operating systems) and that begin with a dot (.) in their file name.

These files are used to store settings for the various programs and tools that a user can use on their system. Files like .bashrc, .zshrc, .vimrc and .gitconfig are examples (just to name a few) that practically every user has on their machine.