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Articles 138,496Blog Posts 142,148Tech Tutorials 35,932Research Papers 27,171News 19,418
⚡ AI Lessons
Dev.to · David
5d ago
I built Commitea: Git and GitHub explained in Spanish, with an interactive visualizer
When I started programming, Git was hard for me — like anything new is at first. Over time I noticed...
Dev.to · David
🧠 Large Language Models
⚡ AI Lesson
1w ago
I Fed an Entire YouTube Channel Into an LLM (200 Videos, ~550k Tokens) 🥊
One YouTube channel. 200 videos. Three AI setups. Let's see who chokes first. 🧐 What is...
Dev.to · David
2w ago
AI Companion in Production by Month Three: 5 Architecture Decisions and Infra Tuning
AI Companion in Production by Month Three: 5 Architecture Decisions and Infra...
Dev.to · David
🚀 Entrepreneurship & Startups
⚡ AI Lesson
3w ago
How I Built 2 Niche Tools That Mainstream Sites Won't Touch (Fish Compatibility + Yarn Substitution)
Why These Markets? Fish Compatibility Checker (AquaMateCheck) Problem: Every...
Dev.to · David
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
Building AI Agents, Breaking Code, and the Quest for "Zero-Slop" Engineering
Hey everyone. I'm finally jumping into the DEV community to share what I'm learning while building in...
Dev.to · David
🧠 Large Language Models
⚡ AI Lesson
2mo ago
Why Context Window Is Not Enough for AI Character Memory
When I started building AI characters, I thought memory was mostly a context-length problem. If the...
Dev.to · David
2mo ago
Why Most WhatsApp Bots Fail — And How I Solved It with Conversation Memory
The Problem Here's what happens in the real world: Monday 10am: "How much does your...
Dev.to · David
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
How I built a voice AI agent that answers phone calls and remembers callers
I got tired of seeing small businesses miss calls. So I built Vokio — a voice AI agent that answers...
Dev.to · David
2mo ago
Stop hardcoding JSON. I built a free cloud mock API with dynamic Faker.js data + AI generation
We've all been there. You're three days into a new dashboard feature. The backend is "almost done."...
Dev.to · David
🤖 AI Agents & Automation
⚡ AI Lesson
3mo ago
Cómo construí Worvi: Un chatbot WhatsApp inteligente con Claude API
Hace 6 meses comencé a resolver un problema real: pequeños negocios pierden leads porque no pueden...
Dev.to · David
🤖 AI Agents & Automation
⚡ AI Lesson
3mo ago
Why Your Shipping Speed Hasn't Changed Since You Started Using AI
I'm going to be honest with you. Most engineers using AI assistants today are shipping at the same...
Dev.to · David
3mo ago
Does the concept of professionalism apply to the creative industries?
Introduction Does the concept of professionalism apply to the creative industries? To...
Dev.to · David
⚡ AI Lesson
3mo ago
After 6 months, I might have to shut down my API
Someone expressed interest in something I built and launched months back. I figured more people...
Dev.to · David
⚡ AI Lesson
3mo ago
After 6 months, I might have to shut down my API
Someone expressed interest in something I built and launched months back. I figured more people...
Dev.to · David
☁️ DevOps & Cloud
⚡ AI Lesson
3mo ago
Learning Fullstack Observability: Metrics
(Originally published on Medium) Introduction According to RedHat: Observability refers...
Dev.to · David
🤖 AI Agents & Automation
⚡ AI Lesson
3mo ago
Building an AI Agent That Earns Yield on Its Own USDC
AI agents are increasingly earning and holding digital assets. Whether it's payment for services,...
Dev.to · David
⚡ AI Lesson
3mo ago
How I Added Unit Tests to a Next.js Project Using Vitest (and Why It Matters for Portfolio Projects)
I recently built a SQL and Python interview prep app using Next.js, TypeScript, Supabase, and Vercel,...
Dev.to · David
📐 ML Fundamentals
⚡ AI Lesson
4mo ago
Monte Carlo Simulation for Trading Systems (Code Example)
Your backtest shows one path. Monte Carlo shows thousands. Here's how to implement three types of...
Dev.to · David
🔐 Cybersecurity
⚡ AI Lesson
4mo ago
Same-Origin Policy and Web Proxies: A Technical Security Analysis
When we built ProxyOrb, we faced a fundamental paradox at every design decision: a web proxy works by...
Dev.to · David
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4mo ago
Joins and Window Functions
In the world of data analytics, SQL is the essential language for extracting insights from relational...
Dev.to · David
⚡ AI Lesson
5mo ago
How I finally wrapped my head around unit testing
(Originally posted on Medium) This is the second article in my Expense Tracker series. In my...
Dev.to · David
⚡ AI Lesson
5mo ago
Free Developer Tools for Testing: IBAN, IMEI, Credit Cards & More
Why Developers Need Test Data Generators If you've ever built a payment form, a mobile...
Dev.to · David
🔐 Cybersecurity
⚡ AI Lesson
5mo ago
Client-Side Security: Why Our Developer Tools Never Touch Your Data
Why we built all our developer tools to process data entirely in the browser — and how you can verify it yourself.
Dev.to · David
🌐 Frontend Engineering
⚡ AI Lesson
5mo ago
Why Client-Side Tools Are the Future of Web Development
Server-side processing had its era. Here's why the smartest developer tools are moving everything to the browser — and why it matters for privacy, speed, and de
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