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, […]
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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. […]
Charts look like a small task on a ticket. Then you open the Recharts docs and remember how much setup every chart needs: a config object for labels and colors, axes, a tooltip, a legend, colors that work in dark mode, and a container that resizes properly. Most of us copy all of that from […]
Building a production-ready mobile application used to require a dedicated team of frontend, backend, and DevOps engineers. With modern AI tools, an individual developer can take an idea from concept to the App Store. In a comprehensive new tutorial published on the freeCodeCamp.org YouTube channel, you will learn how to build and publish CodexGram, a […]
We just published a new documentary-style video on the freeCodeCamp channel that takes you behind the scenes of a high-energy 24-hour hackathon. Quincy Larson traveled to Hong Kong to serve as a judge at SeaHack. There were more than 250 developers and builders from over a dozen countries. The challenge? Team up, brainstorm, and build […]
Modern software systems are increasingly automated. We automate deployments, infrastructure changes, scaling, incident response, and data pipelines. And now, with AI agents, we are starting to automate operational decisions too. That sounds like progress, but it creates a problem that is easy to miss: We are getting better at executing operations without necessarily getting better […]
Managing massive, rapidly growing datasets efficiently is a critical skill for modern developers. Whether you are tracking API request logs, monitoring IoT fleet telemetry, or building dashboards for AI agents, unoptimized time-series data can quickly slow standard PostgreSQL queries to a crawl. We just posted a new course on the freeCodeCamp.org YouTube channel that will […]