Co-owner and Product Design Lead at calibreapp.com. Curator perf.email.

Girl Dad x 2. Cofounder @Employbl. Software Engineer @CommentSold.

Frontend developer, passionate photographer and owner of crazy dogs. Creator of React Styleguidist.

Android Developer, Google Developers Experts

LibreOffice Korean Team,GNU,KDE Contributor,GNOME Foundation Member, My native language is Korean(한국어) My hobby is Learning Language(English,中國語(繁體中文,简体中文),日本語)