Posts by Igor Giamoniano - Coisa de Dev

@Igor Giamoniano - Coisa de Dev

Igor Giamoniano

Fullstack Dev (Elixir, OutSystems) | Educator at Coisa de Dev
São Paulo - Brasil github.com/igorgbr Joined December 2025
2.3k Points48 Badges9 Connections8 Followers13 Following

Posts by Igor Giamoniano - Coisa de Dev

Igor Giamoniano - Coisa de Dev in Tutorials 3 min read
Level: Intermediate Estimated Time: 15–20 minutes Operating System: Windows 11 UEFI systems Summary After replacing a Linux installation such as Pop!OS, Ubuntu, or Arch Linux with Windows 11, old boot entries may remain visible in UEFI firmwar...
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Igor Giamoniano - Coisa de Dev in Tutorials 3 min read
If you run Linux on a system with both an integrated GPU and a dedicated GPU, you may have noticed something strange: some monitoring tools only show one GPU. This situation is common on: laptops with hybrid graphics desktops with iGPU + dedicated...
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Posted in Open Source group
Igor Giamoniano - Coisa de Dev in Tutorials 2 min read
Graphical tools like Rufus or Balena Etcher are convenient and widely used. However, when working in constrained environments, rescue scenarios, or legacy hardware, abstractions can hide critical details. This article explains how to safely create b...
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Posted in Open Source group
Igor Giamoniano - Coisa de Dev in Articles 2 min read
TL;DR Modern Linux installers increasingly assume fully compliant UEFI firmware. On early-generation UEFI systems circa 2011–2013, this assumption often breaks. This article documents a real-world case where Debian 13, installed in Legacy MBR + GRUB...
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Posted in Elixir Dev group
Igor Giamoniano - Coisa de Dev in Articles 3 min read
Introduction In the previous article, we covered how to set up the development environment to start working with Elixir. Now it’s time to talk about the language itself and write our first real code. If you are coming from languages like JavaScr...
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Igor Giamoniano - Coisa de Dev in Tutorials 3 min read
Introduction If you prefer learning from books and documentation instead of videos, Rust offers one of the best learning resources available: The Rust Programming Language, also known as The Rust Book. The book is open source, maintained by the ...
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Posted in Elixir Dev group
Igor Giamoniano - Coisa de Dev in Tutorials 4 min read
Introduction This article is part of a beginner series where I document my personal journey learning Elixir and taking my first real steps in its ecosystem. I recently came from Node.js, where setting up a development environment is usually very s...
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Posted in Open Source group
Igor Giamoniano - Coisa de Dev in Tutorials 3 min read
BTOP++: The Resource Monitor I Didn’t Know I Needed Introduction The year has just begun, the holidays are over, and it’s time to get back to building things. There’s been a lot of talk about 2026 being “the year of Linux” — Steam even kicked off...
Igor Giamoniano - Coisa de Dev in Tutorials 3 min read
Introduction Anyone running dual boot with Windows and Linux has likely encountered this behavior: Linux shows the correct time. You reboot into Windows… and the system clock is suddenly several hours ahead. This happens across many distribution...
Igor Giamoniano - Coisa de Dev in Tutorials 2 min read
And a Gentle Introduction to the Python CLI Ecosystem Introduction Today is Christmas — and if you’re reading this, I hope you’re doing well. After a long year, our minds often try to create a false sense of urgency. Sometimes, the best thing we ...
Igor Giamoniano - Coisa de Dev in Articles 3 min read
Introduction For many users, web privacy still means opening an incognito window or installing an ad blocker. In reality, that only addresses a small part of the problem. Real privacy starts with browser architecture, design decisions, and how m...
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Igor Giamoniano - Coisa de Dev in Tutorials 3 min read
Custom Audio Control on Linux: Switch Between Headphones, Speakers, and Dual Output with a Single Command Introduction Linux users know that when it comes to system-level control, almost everything is possible — including building your own solutio...
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