Hello, I'm Enrique Devars
Also known as Codevars in the digital realm.
The Story
I'm a Software Engineer and Technical Educator at Platzi, where I've had the privilege of teaching over 50,000 students the art of building software that actually works.
My superpower? Taking intimidating topics like Linux administration, calculus for data science, and complex JavaScript patterns—and making them feel like a conversation with a friend (who happens to love sci-fi and terrible dance moves).
I believe in "learning how to learn"—the meta-skill that unlocks everything else. When I'm not coding or teaching, you'll find me exploring virtual worlds or rewatching Interstellar for the 47th time.
Frontend
React, Next.js, TypeScript
Backend
Python, Node.js, APIs
Linux
System Administration
Math/AI
Data Science, ML Fundamentals
Fun Facts.exe
"The best way to predict the future is to code it yourself."— Codevars
Courses & Teaching
Instructor at Platzi. Strong technical foundations, practical tools, and applied training across Linux, frontend, backend, and data science—for thousands of learners.
Linux Development Environment Setup
Prepare a Linux development environment from scratch: installation, initial configuration, and setting up the system for development work.
Introduction to the Terminal and Command Line
A practical introduction to the Linux terminal: basic commands, redirections, operators, aliases, and filesystem navigation to build confidence at the command line.
Introduction to Linux Server Administration
Foundational Linux server administration: daemons, partitions, processes, software installation, repositories, and cron job automation.
Basic Differential Calculus for Data Science and AI
Introductory calculus applied to data science and AI: limits, derivatives, and optimization for interpreting data and solving applied problems.
Linux Server Administration: Resource Management
Efficient resource administration on Linux servers: system boot, users and groups, permissions, storage, RAID, and LVM.
Mathematical Functions for Data Science and AI
Key mathematical functions for data science and AI: polynomials, trigonometric functions, linear regression, perceptrons, and error calculation.
Server-Side Rendering (SSR) with React.js
Build a server-side rendering engine with React, TypeScript, Webpack, and Express: server rendering, hydration, and style injection.
Next.js 14
Build an e-commerce store with Next.js 14: routing, data fetching, authentication, cart flows, Shopify checkout, SEO, state management, deployment, and optimization.
Vue.js
Build interactive web applications with Vue.js: components, props, state, lifecycle, API consumption, composition patterns, dynamic rendering, and deployment.
Linux Environment Setup
Set up a Linux development environment with Ubuntu in a virtual machine, WSL 2, or dual boot: partitions, UEFI, GRUB, terminal basics, files, permissions, and core tools.
Platzi CONF 2021 — You're Not Bad at Math, You Were Just Taught Poorly
Conference talk on making mathematics more accessible and approachable for developers and learners.
I combine engineering depth with clear, practical teaching. Every course is built on real-world experience and a focus on what actually works in production.
Speaking
Community talks, livestreams, and conference appearances—sharing technical knowledge beyond formal courses.
GNU/Linux Latino 58vo Meetup
Guest speaker at GNU/Linux Latino meetup (as @codevars). An active voice in the Linux and developer community.
Desarrollo Web con Enrique Devars
Web development session streamed by Google Developer Student Club Latam. Educator and speaker in broader developer communities.
FLISOL 2023 — Linux: Is It Really Free?
Talk at FLISOL 2023 on Linux and open-source themes. Free software and technical community outreach.
Data Files: Knowledge Base
Thoughts, tutorials, and insights from my journey through code and beyond.
What to do when you break production
The feeling of breaking production can be one of the worst you can feel in your professional career. There are multiple strategies you can follow, from a hotfix to a rollback, to fix that little bug 🐛 that gave your production environment the hiccups.
How to start creating
It will happen to you—there will be a moment when you can't stop thinking about creating something. A blog, a video, or a short piece that comes from your ideas.
Fighting the fear of not feeling productive
If you've been like me and can't go a single minute without "being productive" or you end up feeling anxious about "not working enough," let me tell you something.
What should I study?
This question has been so hard for me to answer in the last year in ways you can't imagine. Web development? Cybersecurity? Data science? Which area should I dedicate all my time and effort to? Let me tell you something.
10 sites you should know if you're a frontend developer
The world of frontend is something wonderful. With just a little HTML, CSS and JavaScript you can take any idea to a corner of this digital world called the Internet.
🔥 Customize your terminal from zero to hero with Oh My ZSH and Powerlevel10k
The terminal is without a doubt one of the most used tools for any developer. So if you want to give a personal touch to that little window that helps you run all your commands, stick with this post.
The magic within four walls
If the world were to end tomorrow, what would you have dedicated your last second to? This is one of the questions I ask when I feel like I'm falling apart in the face of…
What to do when you feel bad
In these times it's hard to feel good. You get out of bed thinking this is all a dream and it seems like not leaving your house has always been the norm. This can lead us to a state where we feel sad or unmotivated, but it's in our hands to change it—and change it for the better.
Improve your app's styles with Styled Components
Styling in React has always been problematic. It's very common to import the wrong styles, get class names wrong or overwrite other styles. What if I told you you can fix these with just JavaScript?
Awesome VS Code extensions for your JavaScript projects
VS Code is one of the most popular code editors for being highly customizable and having a very active community, but the great thing about this amazing editor is the ton of extensions you can install depending on what you're building.
Setting up our Python work environment
Before we start learning to program in Python we need to do a few things to be able to use it. The first thing we can do is check if we have it installed…
Introduction to Python
Welcome to your first steps in Python! 🎉🐍
Linux, the engine that runs the world
You've surely heard of Linux, that Open Source alternative that goes up against Windows and Apple in the world of operating systems. However what many don't know is that Linux is everywhere.