Our on-call team keeps a small internal notes API. The web app in front of it shows who’s holding the pager, which days are frozen for deploys, and where the runbooks live. A developer on that team wanted the same search from Cursor, without opening the web app. They set it up the way most […]
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There’s a conversation that happens in most engineering teams,maybe usually too late. Think of this, a feature ships to production. A security review happens afterwards, or a penetration test finds something, or worse, an incident report lands in your inbox. The vulnerability is real. The fix is expensive. And somewhere in the conversation, someone says […]
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 […]
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 […]
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 […]
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, […]
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 […]
We just published a comprehensive, free Kotlin course on the freeCodeCamp.org YouTube channel. Whether you’re targeting Android development, scalable backend services, or cross-platform applications, this course takes you from writing your first line of code to mastering asynchronous programming and reactive streams. Here are the things covered in this course: Fundamentals & SetupInstalling IntelliJ IDEA, […]
Every website gets feedback, and most of it ends up somewhere awkward. A visitor finds a broken button and emails you. Someone else leaves a comment on social media about a page that won’t load on their phone. A third person fills in your contact form with a feature idea, and it sits in your […]
Tools like Lovable, Bolt, and v0 feel a bit like magic the first time you use them. Honestly, I was shocked the first time I saw something like that…and you get to do all that from a chat window! It was just wild. I had this whole existential crisis the first time I tried Lovable. […]