Practical guides for building with AI
Browse practical guides that explain key development concepts, common implementation questions, and real project workflows.
How to Use Paid APIs Safely When Building With AI
Paid APIs can add powerful features to a website or app, but usage-based services need a few safety checks before launch. This guide explains API keys, environment variables, restrictions, quotas, bot traffic and AI-generated code in plain English.
What Are Scripts in AI-Assisted Development?
Scripts are repeatable instructions that help you inspect, test, automate and improve a project. This guide explains how beginners can use scripts safely when building with AI.
What Is a Port in Web Development?
A port is a number that helps your computer send browser requests to the right local server. This guide explains why beginners often see addresses like localhost:3000 when building websites and apps locally.
What Is npm run dev? A Beginner-Friendly Explanation
Learn what npm run dev does, why beginners use it in local web development, and how it starts your project on localhost so you can build and test safely.
Environment Variables for Web and Server Development
Environment variables are simple key–value settings provided to programmes by the operating system or deployment platform. They let you keep configuration and secrets out of source code, switch behaviour between development and production, and make the same codebase run in many environments without changes.