DEV'S DAILY DIGEST

Development

How to Build a RAG Chatbot for Your Docs with Node.js, Google Gemini, and pgvector

I was helping a team that had a 200-page API documentation PDF. Every new engineer spent their first two weeks Ctrl+F-ing through it, asking the same...

Zia Ullah - freecodecamp

How to Containerize a Node.js Application with Docker and Deploy with GitHub Actions

If you've been building Node.js projects, you've probably had an experience like this. The project runs fine on your machine, but when you push it to a...

Zia Ullah - freecodecamp

UX

No, People Don’t Want More AI In Their Life

Many companies assume everyone craves new AI features. But the reality is that most people don't want more AI — at least not in the way most AI leaders envision it. Brought...

Vitaly Friedman - smashingmagazine

Design

AI Paper Review: Deep Unsupervised Learning using Nonequilibrium Thermodynamics

Today, diffusion models power some of the most impressive AI systems ever built. They generate photorealistic images, create videos, synthesize speech, design...

Mohammed Fahd Abrah - freecodecamp

Security

How to Fix Common Web Application Security Vulnerabilities in Node.js

Here's something that tends to surprise developers who are new to security: most web vulnerabilities aren't the result of sophisticated attacks. They come...

Hackita - freecodecamp

Other

Why "It Worked on My Machine" Still Happens in 2026

Every engineering team has said it at least once: "It works on my machine." The phrase has become a running joke in software, but it's rarely funny when it...

Manish Shivanandhan - freecodecamp

How I Used Harness Engineering to Make Our Company AI-Native

Most companies say they want to "adopt AI". In practice this usually means a chatbot bolted onto a website. Meanwhile, engineers using AI coding tools hit the...

Tech With RJ - freecodecamp

Product Experimentation with Regression-Based Causal Inference: Estimating LLM Feature Impact with Python and statsmodels

A randomized A/B test is the cleanest form of product experiment available. The coin flip that splits users between the new prompt template and the control...

Rudrendu Paul - freecodecamp

How to Build Your First Multi-Agent AI System in Python and LangGraph

In this tutorial, I'll show you how to build a multi-agent AI system in Python with no orchestration framework. We'll also implement this in LangGraph with...

Darsh Shah - freecodecamp

A Deep Dive into Gabeldorsche: The Bluetooth Stack Android Rebuilt on Purpose

The Android Bluetooth stack spent about a decade being the reason your headphones disconnected during the good part of a song. Gabeldorsche is Google's...

Nikheel Vishwas Savant - freecodecamp

How to Analyze Insider Transactions with Python: A CEO Buying Case Study

When a CEO buys shares after their company’s stock has fallen hard, it's tempting to read the purchase as a vote of confidence. The person running the...

Nikhil Adithyan - freecodecamp