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Development

How to Build a Production-Ready DevSecOps Platform from Homelab to AWS [Full Book]

In this book, you'll build a fintech transaction ledger from scratch and progressively transform it into a production-ready DevSecOps platform. You'll also...

Osomudeya Zudonu - freecodecamp

How to Build a Browser-Based PDF Blur Tool Using JavaScript

Many PDF documents contain information that shouldn't be shared publicly. Personal details, financial figures, signatures, addresses, account numbers,...

Bhavin Sheth - freecodecamp

How to Build an AI Agent with Function Calling in Node.js Using Google Gemini

Last year, a client asked me to add a conversational interface to their internal reporting tool. Staff would type a question, and the system would pull a live...

Zia Ullah - freecodecamp

Other

How to Build an Automated Workload Model for Peak Readiness

If you’ve ever spent two days pulling data out of an APM tool just to answer “how many virtual users should I run in my load test?”, this tutorial is for you....

Vasuki Uday Kiran Vudathala - freecodecamp

The ETL Pipeline Handbook: How to Build a Production-Grade Pipeline in Python

Tracking flood risk takes one unglamorous but essential thing: clean and structured data. In this tutorial, you'll build a data pipeline yourself. You'll...

brooklyn - freecodecamp

How to Build a Real-Time Object Detection and Tracking Pipeline with ROS 2 and YOLOv11

If you've ever tried to build a robotics system that can actually see, track, and respond to the world around it, you know that the hard part isn't training a...

Iyanuoluwa Enoch Oke - freecodecamp

How to Diagnose Production Bugs When You Can't Reproduce Them Locally

Every developer eventually encounters the same frustrating problem. A customer reports that your application is failing in production. You try the exact same...

Manish Shivanandhan - freecodecamp

How to Use Prompt Engineering and Context Engineering for AI Agents

In this tutorial, I’ll show you how prompt engineering and context engineering can improve an AI agent's performance. We’ll build a simple local agent, start...

Darsh Shah - freecodecamp

What to Do if You've Outgrown Your Cron Job Scheduler

Most developers begin their automation journey similarly. They create a script that performs a helpful task, such as pulling data from an API, resizing a...

Rob Walters - freecodecamp

The New Agency Stack: How Dev Shops Use Claude, Cursor, and Copilot in Production

Two years ago, AI coding tools were a curiosity. Agencies let junior devs experiment with them on internal tools and side projects, the kind of work where...

Manish Shivanandhan - freecodecamp