Daily Archives: October 10, 2026

Create Scalable AI Automations with n8n

Most automation tutorials show you how to connect two simple apps and call it a day. But building workflows that companies can actually run in production requires an entirely different skill set, one focused on backend architecture, intelligent decision-making, and bulletproof reliability. We just released a comprehensive new course on the freeCodeCamp.org YouTube channel that […]

Master Modern React Routing: TanStack Router Crash Course

Routing in modern web applications has evolved far beyond simply rendering a component based on a URL path. Developers today want end-to-end type safety, automated code splitting, seamless URL search parameter management, and streamlined data fetching without drowning in boilerplate useEffect hooks. TanStack Router is a powerful routing framework designed to deliver 100% inferred TypeScript […]

How to Create System Design Diagrams using Python

Creating system architecture design diagrams is an important part of technical documentation. As system complexity grows, clarity within teams becomes even more important. But creating diagrams from scratch using canvas-like tools isn’t always efficient. Luckily, there’s an alternative way to create diagrams using a diagram-as- code approach. In this approach, you explain the diagram components […]

Build and Train a 25M Parameter LLM From Scratch on Your CPU

You don’t need a massive GPU cluster to learn how modern frontier AI works. In our new video on the freeCodeCamp.org YouTube channel, you will build, pre-train, and fine-tune a working 25-million parameter language model directly on your laptop or standard CPU. Frontier labs train massive systems with billions of parameters, but the core architecture, […]

What Claude Code Can and Can’t Do with Full Access Inside a Docker Sandbox

Claude Code can do more than suggest a fix. It can edit files, install dependencies, run tests, and start your application. But letting it finish a task on its own raises a practical question: how much of your computer should those commands be allowed to affect? Approving commands one at a time keeps you involved […]