A blog dedicated to mastering software development — learn, build, and elevate your coding skills.https://are-dev.es/https://are-dev.es/posts/agronet/https://are-dev.es/posts/agronet/AgroNET is a full-stack web application designed to modernize agricultural practices through smart features and real-time data integration. Built with Astro, React, Node.js and AWS, it offers crop management, weather tracking, and community forums for farmers and agronomists.Sun, 25 May 2025 17:00:00 GMTenPortfolioMiguel Aréjula Aísahttps://are-dev.es/posts/firstproject/https://are-dev.es/posts/firstproject/In this post, I share my recommendation to build your first full-stack project; combining both front-end and back-end technologies to create a fully functional application.Sun, 09 Mar 2025 13:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/monolithvsmicroservices/https://are-dev.es/posts/monolithvsmicroservices/A practical guide comparing modular monoliths and microservices, helping developers choose the right architecture for their team, product, and scaling needs.Mon, 29 Sep 2025 17:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/myterminal/https://are-dev.es/posts/myterminal/My collection of Terminal configurations to boost productivity and enhance its appearance.Mon, 03 Mar 2025 15:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/jwt/https://are-dev.es/posts/jwt/Learn how to implement JWT authentication in a Node.js application with Express.js. This beginner-friendly guide walks you through creating login routes, generating JWTs, and securing your APIs.Sun, 13 Apr 2025 19:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/integrationtest/https://are-dev.es/posts/integrationtest/Learn what integration testing is, why it’s essential for building reliable applications, and how to perform it manually with Postman. Then take it a step further by automating your tests using Postman collections and Jest in a Node.js environment.Sun, 04 May 2025 23:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/jupyternotebooks/https://are-dev.es/posts/jupyternotebooks/Learn how to install Jupyter Notebooks on macOS, set them up in VS Code and start writing interactive Python code for data analysis and visualization.Sun, 26 Oct 2025 21:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/basictesting/https://are-dev.es/posts/basictesting/Learn how to write your first unit tests using Jest in a Node.js project. This beginner-friendly guide covers setup, writing basic tests, testing async code, and more.Sun, 06 Apr 2025 19:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/datascience/https://are-dev.es/posts/datascience/Learn the basics of data science with Python, from loading and exploring datasets to visualizing data and performing simple analyses in Jupyter notebooks.Sun, 02 Nov 2025 19:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/expressguide/https://are-dev.es/posts/expressguide/Learn how to set up your first API REST using Express.js. This beginner-friendly guide walks you through the fundamentals, from routing requests to structuring your code with controllers, models, and views.Sun, 16 Mar 2025 21:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/git/https://are-dev.es/posts/git/Learn Git from scratch with this basic guide. Understand the fundamental concepts and how to integrate it with GitHub and VSCode.Sun, 27 Apr 2025 18:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/astroguide/https://are-dev.es/posts/astroguide/Learn how to set up your first Astro project. A step-by-step guide to create a new Astro project.Sun, 23 Mar 2025 23:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/playbeat/https://are-dev.es/posts/playbeat/PlayBeat is a full-stack web application designed to facilitate music collaboration among artists. Built with Astro, Express, PostgreSQL and Azure. It offers features like real-time playlist management, upload and sharing of music files and a user-friendly interface for artists to connect and collaborate.Sun, 06 Jul 2025 17:00:00 GMTenPortfolioMiguel Aréjula Aísahttps://are-dev.es/posts/setupterminal/https://are-dev.es/posts/setupterminal/Learn how to create a powerful and beautiful terminal environment from scratch; from choosing a shell and prompt to configuring colors, fonts and tools.Mon, 06 Oct 2025 20:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/swagger/https://are-dev.es/posts/swagger/API documentation is the backbone of seamless software integration and developer collaboration. In this guide, wou will explore why API documentation is crucial and how Swagger can simplify and standardize the process in Express applications.Sun, 30 Mar 2025 23:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/tfg/https://are-dev.es/posts/tfg/A web-based system to digitize, monitor, and validate clinical pathways in real hospitals, developed as part of my Computer Engineering Bachelor's Thesis.Mon, 21 Jul 2025 17:00:00 GMTenPortfolioMiguel Aréjula Aísahttps://are-dev.es/posts/neovim/https://are-dev.es/posts/neovim/Learn what Neovim is, why developers are switching to it and how its modern features and customizability can boost your coding workflow.Sun, 19 Oct 2025 19:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/uniadvices/https://are-dev.es/posts/uniadvices/Practical advice for Informatics Engineering students: from using Git and GitHub early, to self-learning, building a portfolio, and preparing for the professional world.Tue, 16 Sep 2025 17:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/vscode-shorcuts/https://are-dev.es/posts/vscode-shorcuts/My collection of Visual Studio Code shortcuts to boost productivity.Mon, 03 Mar 2025 13:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/tailwindcss/https://are-dev.es/posts/tailwindcss/Discover how Tailwind CSS makes it easier and faster to build modern, responsive websites. In this beginner-friendly guide, you'll learn what Tailwind is, how it works, and how to integrate it into your project with real examples and best practices.Sun, 11 May 2025 17:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/authproviders/https://are-dev.es/posts/authproviders/Want to let users sign in with their Google or GitHub account? This step-by-step guide shows you how to implement OAuth authentication in an Astro project using modern best practices.Sun, 18 May 2025 17:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/captcha/https://are-dev.es/posts/captcha/Learn how to integrate Google reCAPTCHA v3 into your Astro site to prevent spam without annoying your users. A practical guide to secure static form submissions.Sun, 20 Apr 2025 19:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/es/astroguide/https://are-dev.es/posts/es/astroguide/Aprende cómo configurar tu primer proyecto Astro. Una guía paso a paso para crear un nuevo proyecto Astro.Sun, 23 Mar 2025 23:00:00 GMTesAprendizajeMiguel Aréjula Aísahttps://are-dev.es/posts/es/expressguide/https://are-dev.es/posts/es/expressguide/Aprende a configurar tu primera API REST usando Express.js. Esta guía para principiantes te lleva a través de los fundamentos, desde el enrutamiento de solicitudes hasta la estructuración del código con modelos, controladores y vistas.Sun, 16 Mar 2025 21:00:00 GMTesAprendizajeMiguel Aréjula Aísahttps://are-dev.es/posts/vim/https://are-dev.es/posts/vim/Learn what Vim is, why developers love it and how to master its essential commands to boost your coding productivity.Sun, 12 Oct 2025 19:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/es/firstproject/https://are-dev.es/posts/es/firstproject/En este post, compartiré mis recomendaciones para desarrollar tu primer proyecto full-stack; combinando tecnologías tanto de front-end como de back-end para crear una aplicación completamente funcional.Sun, 09 Mar 2025 13:00:00 GMTesAprendizajeMiguel Aréjula Aísahttps://are-dev.es/posts/es/git/https://are-dev.es/posts/es/git/Aprende a usar Git desde cero con esta guía básica. Conoce los conceptos fundamentales y cómo integrarlo con GitHub y VSCode.Sun, 27 Apr 2025 18:00:00 GMTesAprendizajeMiguel Aréjula Aísahttps://are-dev.es/posts/es/myterminal/https://are-dev.es/posts/es/myterminal/Mis ajustes del terminal para aumentar la productividad y mejorar su aparienciaMon, 03 Mar 2025 15:00:00 GMTesConfiguraciónMiguel Aréjula Aísahttps://are-dev.es/posts/es/vscode-shorcuts/https://are-dev.es/posts/es/vscode-shorcuts/Mi colección de atajos para aumentar la productividad.Mon, 03 Mar 2025 13:00:00 GMTesHerramientasMiguel Aréjula Aísahttps://are-dev.es/posts/vscodeextension/https://are-dev.es/posts/vscodeextension/How I built and published my first Visual Studio Code extension; CSV Table Viewer, a simple tool to preview CSV files as clean tables directly inside VS Code. In this post, I’ll share the idea, development process and how you can publish your own extension too.Sat, 08 Nov 2025 19:00:00 GMTenLearnPortfolioMiguel Aréjula Aísahttps://are-dev.es/posts/vscodeextensionreact/https://are-dev.es/posts/vscodeextensionreact/Learn how to create a modern VS Code extension with a React + TailwindCSS webview. This guide walks you through initializing the extension, configuring Vite and Tailwind, integrating React for UI, and running your extension in VS Code, providing a fast, interactive, and fully typed TypeScript setup.Sun, 16 Nov 2025 19:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/obsidian/https://are-dev.es/posts/obsidian/Why I trust Obsidian for every note. See my personal workflow and how the simplicity of Markdown and plain text files offers unmatched speed, longevity and flexibility compared to Notion.Sun, 30 Nov 2025 19:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/obsidiancustom/https://are-dev.es/posts/obsidiancustom/Learn how to personalize Obsidian with themes, custom CSS, and layout tweaks to create a comfortable and efficient note-taking environment that fits your workflow.Sun, 07 Dec 2025 19:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/cplusplus-go/https://are-dev.es/posts/cplusplus-go/Learn the differences between C++ and Go, their strengths and weaknesses, and when to use each language in real-world software projects.Sun, 11 Jan 2026 18:00:00 GMTenLearnMiguel Aréjula Aísahttps://are-dev.es/posts/2026tendencies/https://are-dev.es/posts/2026tendencies/2026 is here, bringing a wave of surprising tech trends focused on re-humanizing our digital lives. From the resurgence of wired headphones to the rise of home NAS devices, discover the five key tendencies shaping this year.Thu, 22 Jan 2026 12:00:00 GMTenSetupMiguel Aréjula Aísahttps://are-dev.es/posts/resumemd/https://are-dev.es/posts/resumemd/ResumeMD is a simple open-source tool that lets developers create and maintain their resumes using Markdown. Write once, version it with Git, and export a clean, professional resume without fighting design tools.Sun, 01 Feb 2026 21:00:00 GMTenPortfolioMiguel Aréjula Aísa