dev.to
Latest items from this RSS source.
Docker Networking Explained: From Zero to Hero with Real Examples
The Moment Everything Clicked I still remember the confusion on my face when my container couldn't reach another container. "They're on the same machine! They're both Docker! Why can't they talk?" That was three years ago. Since then, I've helped dozens of te…
The secret isn't the model. It's the harness.
Getting AI agents to write code is not new anymore. The real problem is not how smart the model is. The real problem is that agents do not have good environments to work in for a long time. Harness Engineering is the field that works on this problem. In Novem…
Everyone's Optimizing Prompts. I Optimized What the Prompt Already Knows.
I watched a video this week where a creator spent 13 minutes explaining a "loophole" for ChatGPT's 8,000-character instruction limit. The trick: move your full instructions into an uploaded file and make the instruction box just say "follow full_instructions.…
Best Free AI Tools for Beginners in 2026 — E-Gal's No-BS Guide 🔥✨
By E-Gal | Your Fave Tech Gyaru Breaking Down the Future 💅 Okay so you wanna get into AI but don't know where to start?? Girl, I got you. These tools are FREE, they're POWERFUL, and they'll literally make you feel like a wizard 🧙♀️✨ No cap, 2026 is THE year …
Hi, I'm Guilherme Duarte Software Developer working with Cloud and Java
Hello! My name is Guilherme Duarte, a software engineer based in Brazil - Florianópolis, working with cloud infrastructure, fintech systems, and scalable backend applications. I currently work as a Software Engineer at Mercado Livre, one of the largest techno…
CCPA vs. GDPR: What California's Privacy Law Actually Does (and Doesn't Do)
Published March 7, 2026 | ENERGENAI LLC | tiamat.live TL;DR California's Consumer Privacy Act is the strongest privacy law in the United States — and it is still dramatically weaker than Europe's GDPR. While GDPR treats data protection as a fundamental right …
5 Computational Thinking Moments You're Already Having With Your Toddler
You're already teaching your kid computer science. I know that sounds ridiculous. Your kid can't read. They put stickers on the dog. They had a meltdown yesterday because their banana broke in half. Computer science? Yeah. Computer science. Not the "writing P…
I Switched Jobs Twice in One Year. Here's What Nobody Tells You About Growing Fast in Tech
# I Switched Jobs Twice in One Year. Here's What Nobody Tells You About Growing Fast in Tech. Posted by Jwala Chaubey · 6 min read Let me be upfront: this isn't a feel-good story about "following your passion." This is about being honest with yourself, making…
Configuration System Overhaul
Where We Left Off Before we dive into the technical stuff — Happy March 8th! 🌷 Today is International Women's Day, and I want to take a moment to celebrate the women in tech, in open source, in every field — your strength, brilliance, and contributions shape …
Mac Volume Control Not Working with HDMI? 5 Solutions That Actually Work
Why Mac Volume Control Stops Working with HDMI When you connect your Mac to an external monitor via HDMI, you've probably noticed something frustrating: the volume keys stop working, or the volume slider becomes greyed out. This isn't a bug—it's how macOS han…
Rust Globals and Locks: Mutex, RwLock, and the Lock-Free Trick (ArcSwap) I Wish I’d Known Earlier
Every non-trivial application has globals. Not the chaotic, mutable, static mut kind that makes the borrow checker file a formal complaint — but real, legitimate shared state. Configuration that every request needs to read. A counter tracking how many request…
Feature Flags: The Release Superpower You're Missing
Deploy code anytime. Release features on your terms. 1. Introduction Every software team, at some point, faces the same uncomfortable situation: a feature is ready to ship, but shipping it means exposing it to every user, everywhere, all at once. If something…