PORTFOLIO
Things I've shipped.
A working list — companies founded, books printed, courses taught, tools released into the wild. Listed newest first, ungrouped on purpose. The good ones tend to look small at the time.
01 · Featured · 2024 → presentlive · parallax.kr
Parallax AI — see what others miss.
A multi‑LLM AI platform that runs Google, Anthropic, OpenAI and xAI side‑by‑side and fact‑checks them against each other — eliminating hallucinations through competitive cross‑model verification. Persistent encrypted memory, a native creative suite (Iris), and we charge only 30% above raw API cost.
- 50+AI models supported
- 100%context recall
- 30%above raw api cost
ALSO SHIPPED
제품, 강의, 책 — 02‑11
- 02
endkit.app ↗product · 2025EndkitA starter kit for shipping mobile apps in a weekend. Auth, payments, push, in 4 files. - 03
graygate.app ↗product · 2024graygateAn end-to-end encrypted messenger — a door that doesn't ask the color of whoever passes through. - 04
inflearn.com ↗course · 2025Frontend Master ClassA 32‑hour course on Inflearn. 2,100+ enrolled. Korean‑language. - 05
marpple.shop ↗book · 2024살아야 할 이유An ebook on the years I almost didn't make it. PDF, pay‑what‑you‑can. - 06
amazon.com ↗book · 2026Reasons to LiveEnglish edition of 살아야 할 이유 — a short journey through the memories of someone who cries out to live. - 07
kyobobook ↗book · 2022UX 디자인의 모든 것User experience considerations for UX designers. Rediscovering the original purpose when building applications. - 08
kakao gift ↗book · 2022쉽게 설명한 자바스크립트 알고리즘The easiest algorithm textbook for beginner web developers. - 09
historical.parallax.kr ↗parallax vertical · 2026Historical · parallaxMulti‑LLM archive & timeline research — compare model interpretations of historical sources side‑by‑side. - 10
legal.parallax.kr ↗parallax vertical · 2026Legal · parallaxCross‑model legal reasoning over statute and case law. Built on the Parallax multi‑LLM fact‑check core. - 11
truth.parallax.kr ↗parallax vertical · 2026Truth · parallaxClaim verification. Run a statement past four frontier models and see who agrees, who dissents, and why.