How to Avoid Overusing useCallback and useMemo in React
If you’ve spent enough time in the React ecosystem, you’ll have likely seen codebases where nearly every function is wrapped with useCallback and the computed value is wrapped with useMemo. The reason Fuente: Artículo original
How to Handle Small Context Window Limits in RAG Systems
Retrieval-augmented generation, or RAG, is a pattern where an application retrieves relevant source material and adds it to a model prompt so the model can answer from that context. A larger context w Fuente: Artículo original
Build a Self-Healing CI/CD Pipeline with AI
Learn how how to build a fully autonomous, self-healing CI/CD pipeline from scratch with a new course we just posted on the freeCodeCamp.org YouTube channel. Farzeen Ali developed this course. In this Fuente: Artículo original
AI Paper Review: Chain-of-Thought Prompting Elicits Reasoning in Large Language Models
For the last few years, Large Language Models have been impressing researchers with their ability to generate text, answer questions, translate languages, and perform tasks they had never been explici Fuente: Artículo original
Mastra vs LangChain: Building an AI Agent Pipeline and Analyzing the Data
A week ago, I saw this tweet: I had just shipped SupportMesh, a multi-tenant AI support platform built on Mastra, so I had opinions from production. I liked the .dowhile() loop, the typed step schem Fuente: Artículo original
How to Run Private Text-to-Speech on Your Own Hardware Using QVAC
When I was putting the final touches on QuizRope, an educational mobile app I built that uses LLMs for real-time tutoring and homework assistance, I knew the next logical step was voice. Reading text Fuente: Artículo original
Building a Website in 2026: What Matters More Than Your Tech Stack
For years, developers have debated which technology stack was best for building websites. Some preferred React. Others chose Vue, Angular, Svelte, or server-side frameworks such as Laravel and Django. Fuente: Artículo original
How to Start your Career in Tech with freeCodeCamp – Full Talk in Spanish
Technology is rapidly reshaping the world. Understanding how to use free learning resources and contribute to open source projects can be very helpful to start your career in this field. We just publi Fuente: Artículo original
Database Version Control with Liquibase and Spring Boot
Picture this familiar scenario: you’re working on a new feature that requires a new database column. You open your local database client, write an ALTER TABLE statement, and execute it. Your code work Fuente: Artículo original
Open Source Tools Every STEM Student Should Know About
Technology has changed the way students learn science, mathematics, engineering, and computer science. A decade ago, most STEM students depended on textbooks, calculators, and expensive licensed softw Fuente: Artículo original