freeCodeCamp

If you've been storing AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY as GitHub Secrets to deploy to AWS, you're not alone. It's the most common approach and it's also one of the biggest security risks in a CI/CD pipeline.

Here's why: static credentials don't expire on their own. If they get leaked through a misconfigured workflow, a public fork, or a compromised reposito...

Working with PDFs is part of everyday development.

Sometimes you don’t need the entire document. You just need a few pages — maybe a specific section, a report summary, or selected invoice pages.

Most tools require uploading files or installing software. But modern browsers are powerful enough to handle this locally.

In this tutorial, you’ll learn how to ...

What if you could build your own LLM, one that speaks your native language, all from scratch? That's exactly what we'll do in this tutorial. The best way to understand how LLMs work is by actually building one.

We'll go through each step of creating your own LLM in a specific language (Urdu in this case). This will help you understand what goes on inside an LLM.

Every RAG system I've seen — including the one I wrote a handbook about on this site — has the same fundamental problem.

It doesn't learn.

You ingest 500 documents. You ask a question. The system retrieves the three most similar chunks and hands them to the LLM. Repeat for the next query.

The system knows exactly as much as it did on day one. It's a libra...

When you run a single AI agent, debugging is straightforward. You read the log, you see what happened.

When you run five agents in a swarm, each spawning its own tool calls and producing its own output, "read the log" stops being a strategy.

I built Claude Forge...