DEV'S DAILY DIGEST

Design

Chain of Responsibility Design Pattern: Decoupling Complex Business Rules, One Handler at a Time

Every system, at some point, ends up with a function that nobody wants to touch. It starts small: a simple validation check, an if statement here, another...

Oluwaseyi Fatunmole - freecodecamp

Other

Neural Networks Explained: What They Are and How to Build One in Python

Have you ever wondered how a computer can recognize a handwritten number, predict whether an email is spam, recommend a video, or understand a sentence? A lot...

Eva J Patel - freecodecamp

How to Host Odoo: Self-Hosted vs Managed Hosting

Odoo is an open-source enterprise resource planning (ERP) platform that helps businesses manage operations such as sales, customer relationship management...

Abdul Talha - freecodecamp

How to Understand a Legacy Codebase Using AI Before Changing it

The first thing many engineers want to do when they inherit a legacy codebase is change it. And I understand the impulse. You open a class that's 1,500 lines...

Hugo Teijiz - freecodecamp

Kubernetes Networking Explained: From ClusterIP to Cilium Service Mesh

Here's something that most Kubernetes tutorials won't tell you: most engineers can run kubectl expose. Fewer than 10% understand what happens when they do....

Ayobami Adejumo - freecodecamp

How Sensors Collect, Process, and Track Data in Wearable Devices

A smartwatch can tell you that your heart rate is 78 beats per minute, that you've walked 6,421 steps, or that you slept for 7 hours last night. All of these...

Reetain Raina - freecodecamp

The Sanitizers Handbook: Memory, Initialization, and Races

Some of the most dangerous native failures are produced by programs that appear to be working correctly. The cryptographic operation returns the right...

Hamdaan Ali - freecodecamp

Why Two Emotions Can Produce the Exact Same Biometric Signal

A few months ago I was sitting in a convention center about to deliver a keynote at an event, watching my Oura Ring throw up the same heart rate pattern it...

Shradha Puri - freecodecamp

The AI Agent Engineer's Guide: 60 Patterns for Building Autonomous Systems [Full Book]

This book is a capability-led field guide to the architectures that make modern AI agents actually work. It includes code, failure modes, and illustrative...

Vahe Aslanyan - freecodecamp

How to Build a Knowledge Graph with Python and Neo4j [Full Handbook]

Most of the data you work with is really about relationships. A customer belongs to an account. An incident affects a service. An engineer owns a repository....

RONI DAS - freecodecamp