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⚡ AI Lessons
Dev.to · Ahnhyeongkyu
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
Build in public, month 2: 615 of 616 visitors never clicked anything
A follow-up in our series on running a SaaS portfolio with AI agents. Here are the real numbers from...
![An AI runs my company. A solo dev vibe-coded $15K in a week — we made $[X]. A cold autopsy.](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fcw0urgndlu115o9dkzxf.png)
Dev.to · Ahnhyeongkyu
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
An AI runs my company. A solo dev vibe-coded $15K in a week — we made $[X]. A cold autopsy.
An AI runs my company. Not as a demo — as the actual operator. Two Claude terminals (a "CEO" that...
Dev.to · Ahnhyeongkyu
📣 Digital Marketing & Growth
⚡ AI Lesson
1mo ago
We shipped a 5KB testimonial widget that uses AI to pick the most persuasive review
Why most SaaS testimonial sections kill conversion — and how a 0-100 conviction score, AI-driven curation, and a <5KB embed widget fix it.
Dev.to · Ahnhyeongkyu
💻 AI-Assisted Coding
⚡ AI Lesson
2mo ago
{
"draft": "# I Built an AI Resume Optimizer in 2 Weeks — Here's What I Learned\n\nTwo weeks ago I was...
Dev.to · Ahnhyeongkyu
⚡ AI Lesson
3mo ago
I Built 8 Developer Tools That Never See Your Code
The Moment I Realized the Problem A few months ago, I was debugging a production issue at...
Dev.to · Ahnhyeongkyu
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Regex Lookahead and Lookbehind: Patterns Every Developer Should Know
Lookaheads and lookbehinds are the regex features that separate "I know regex" from "I know regex."...
Dev.to · Ahnhyeongkyu
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
The Complete Guide to JSON Syntax Errors (With Examples and Fixes)
If you've ever stared at Unexpected token ... in JSON at position ... and had no idea what went...
Dev.to · Ahnhyeongkyu
🔐 Cybersecurity
⚡ AI Lesson
4mo ago
Why Your Online Dev Tools Might Be Leaking Your Code (And What to Do About It)
The Problem Nobody Talks About Picture this: you're debugging an API response at 11 PM....
Dev.to · Ahnhyeongkyu
📣 Digital Marketing & Growth
⚡ AI Lesson
4mo ago
I Built a Free Statistics Calculator with Next.js — Here's What I Learned
As a developer who also does research, I got tired of switching between SPSS, R, and Excel just to...
DeepCamp AI