Ahnhyeongkyu

Full-stack developer building StatMate, a free online statistics calculator. Passionate about making data analysis accessible to everyone.

Joined on Feb 23, 2026

Ahnhyeongkyu

May 30

Build in public, month 2: 615 of 616 visitors never clicked anything

#ai #startup #buildinpublic #saas

1 min read

Ahnhyeongkyu

May 30

An AI runs my company. A solo dev vibe-coded $15K in a week — we made $[X]. A cold autopsy.

#ai #startup #buildinpublic #programming

4 min read

Ahnhyeongkyu

May 28

We shipped a 5KB testimonial widget that uses AI to pick the most persuasive review

#saas #marketing #ai #webdev

3 min read

Ahnhyeongkyu

Apr 28

I Tried 10 ChatGPT Resume Prompts. Here's What Actually Got Me Interviews.

#chatgpt #resume #ai #career

3 min read

Ahnhyeongkyu

Apr 18

When Paddle Live Checkout Silently Broke - A Literal Backslash-N Debugging Story

#debugging #saas #javascript #paddle

3 min read

Ahnhyeongkyu

Apr 18

How Trustfolio's testimonial widget stays under 5KB — while the rest of the market ships 65–125KB

#webperf #javascript #saas #performance

4 min read

Ahnhyeongkyu

Apr 13

I Built a Testimonial.to Alternative — Here's What I Learned

#showdev #performance #saas #webdev

2 min read

Ahnhyeongkyu

Apr 12

I Built 8 Developer Tools That Never See Your Code

#showdev #privacy #security #tooling

3 min read

Ahnhyeongkyu

Mar 28

Stop Shipping 300KB Testimonial Widgets — There's a Better Way

2 min read

Ahnhyeongkyu

Mar 27

I Built a Sub-5KB Testimonial Widget Because Every Alternative Tanked My Lighthouse Score

1 min read

Ahnhyeongkyu

Mar 4

Regex Lookahead and Lookbehind: Patterns Every Developer Should Know

#regex #javascript #tutorial #webdev

7 min read

Ahnhyeongkyu

Mar 4

The Complete Guide to JSON Syntax Errors (With Examples and Fixes)

#javascript #webdev #beginners #tutorial

5 min read

Ahnhyeongkyu

Mar 4

Why Your Online Dev Tools Might Be Leaking Your Code (And What to Do About It)

#productivity #webdev #privacy #javascript

4 min read

Ahnhyeongkyu

Feb 23

I Built a Free Statistics Calculator with Next.js — Here's What I Learned

#nextjs #javascript #webdev #opensource

3 min read

DEV Community

Ahnhyeongkyu

Badges

Writing Debut

Build in public, month 2: 615 of 616 visitors never clicked anything

An AI runs my company. A solo dev vibe-coded $15K in a week — we made $[X]. A cold autopsy.

We shipped a 5KB testimonial widget that uses AI to pick the most persuasive review

I Tried 10 ChatGPT Resume Prompts. Here's What Actually Got Me Interviews.

When Paddle Live Checkout Silently Broke - A Literal Backslash-N Debugging Story

How Trustfolio's testimonial widget stays under 5KB — while the rest of the market ships 65–125KB

I Built a Testimonial.to Alternative — Here's What I Learned

I Built 8 Developer Tools That Never See Your Code

Stop Shipping 300KB Testimonial Widgets — There's a Better Way

I Built a Sub-5KB Testimonial Widget Because Every Alternative Tanked My Lighthouse Score

Regex Lookahead and Lookbehind: Patterns Every Developer Should Know

The Complete Guide to JSON Syntax Errors (With Examples and Fixes)

Why Your Online Dev Tools Might Be Leaking Your Code (And What to Do About It)

I Built a Free Statistics Calculator with Next.js — Here's What I Learned