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⚡ AI Lessons

Dev.to · John Munn
🌐 Frontend Engineering
⚡ AI Lesson
3mo ago
HTCPCP IYKYK: I Built a Browser Extension That Lets Dinosaurs Eat the Internet
A tiny pixel dinosaur walks onto your webpage and eats the visible text line by line. Then, because the internet deserves whimsy, typing 418 mutates it into a t

Dev.to · John Munn
🏗️ Systems Design & Architecture
⚡ AI Lesson
3mo ago
I Built a Retro JavaScript Game About Pair Programming With a Brilliant Asshole
I built a retro JavaScript browser game about fixing tickets while surviving Chuck, a brilliant but socially corrosive coworker. Under the pixel-art UI, it beca

Dev.to · John Munn
⚡ AI Lesson
3mo ago
How a Dev.to Challenge Project Turned Into a Full D&D Campaign Tracker
I built a simple session journal for my D&D group. It evolved into a full campaign tracker with entities, timelines, and player portals.

Dev.to · John Munn
🌐 Frontend Engineering
4mo ago
You're Probably Doing TypeScript Wrong (But I'm Here to Help)
TypeScript doesn’t make your code safe. It makes your design visible. Common mistakes, better patterns, and how to use TS without fighting it.

Dev.to · John Munn
📐 ML Fundamentals
⚡ AI Lesson
4mo ago
Vector Embeddings Explained (with hands on demo)
A practical explanation of vector embeddings, distance metrics, and why similar setups can behave very differently in real systems. Includes a hands-on demo to

Dev.to · John Munn
🏗️ Systems Design & Architecture
5mo ago
The Scaling Gauntlet, Pt. 3: Cache Rules Everything Around Me
Caching isn’t cheating—it’s how systems scale. In Part 3 of The Scaling Gauntlet, we explore how to avoid making the same expensive calls over and over, with pr

Dev.to · John Munn
🍎 Teaching & Learning Design
5mo ago
Teaching AI to See your UI - Using Puppeteer as eyes for your AI
How I use Puppeteer to give an AI visibility into a real UI, letting it observe failures, reason from evidence, and repair its own mistakes.
DeepCamp AI