The Design Patterns Handbook: Learn Popular Design Patterns with C# Code Examples
Isaiah Clifford Opoku |
Design patterns are reusable solutions to common problems in software design. Think of them as blueprints: not finished code, but proven templates you can adapt to solve a specific problem in your own... read more
AWS Cloud Cost Monitoring, Alerting, and Optimization: A Guide for Devs
Ayobami Adejumo |
There's a common conversation that happens in engineering teams every month. Someone forwards a screenshot of the AWS bill. The number is higher than last month. Everyone nods and agrees it should be... read more
How to Build a Scholarship Research MCP Server with Node.js, Express, and MongoDB
Chinedu Otutu |
Scholarship hunting is a research job, not a single search box. You filter awards by field, GPA, citizenship, and deadline. You keep a shortlist. You write notes about essays and recommenders. Then yo... read more
How AI Receptionists Work: The Architecture Behind AI Phone Agents
Manish Shivanandhan |
An AI receptionist may sound simple from the outside: a caller speaks, the system responds, and the conversation continues until the caller gets an answer or reaches a person. Behind that conversation... read more
How to Use Discord with a Screen Reader: A Quick Guide
Florian Beijers |
Discord is one of those technologies that came out of nowhere several years ago and is now everywhere. A huge variety of servers around all sorts of communities, efforts, and initiatives have been pop... read more
How AI Is Changing Patching and What Devs Need to Know About Exposure Management
Reetain Raina |
When a vulnerability scanner reports 23 vulnerabilities in your application, of which 4 are critical, 7 are high, and the remaining 12 are medium, at first glance the answer seems clear: start patchin... read more
Agentic AI Engineering in Practice: How AI Engineers and Forward-Deployed Engineers Build with Claude Code, Codex, and Gemini
Rudrendu Paul |
A practical, three-tool guide to the AI-native software development life cycle (SDLC): Plan, Design, Build, Test, Deploy, Maintain, reimagined for agentic coding. In March 2025, a small nonprofit rese... read more
Claude Code Observability with OpenTelemetry
Puneet Singh |
Agentic coding tools like Claude Code, OpenAI Codex, Google Antigravity, and Cursor have become ubiquitous for everyday software development. As agentic systems mature, much of the work developers hav... read more
How to Build AI Systems That Know When They Don't Know: A Practical Guide
Chidiebere Njoku |
Large Language Models (LLMs) have fundamentally changed how we build internal business applications. They allow developers to create intelligent software that can synthesize complex corporate data, an... read more
How AI Chips Are Made
Beau Carnes |
We just published a comprehensive, first-principles course on the semiconductor supply chain on the freeCodeCamp.org YouTube channel. Taught by hardware specialist Kian Kyars, this deep dive explains... read more