Retiring Flutter — What I Learned Rewriting Three Apps for the Web
Why Flutter web kept fighting me inside mini-app platforms, and what I kept and dropped while rewriting a spinner game, a bottle game, and a fortune-lotto app in plain TypeScript
Fadongkwon Soft
8 Traps I Hit Making This Blog Bilingual (Jekyll + Chirpy)
Turning a Korean-only Jekyll blog into English-first with automatic locale selection — scheduled-post pitfalls, theme override contracts, a zombie service worker, and running batch translation for ...
Tarot Ping — Cute Pastel Mascot Deck Tarot Reading App
The cute-deck edition of our tarot app, with 78 hand-drawn pastel mascot cards and 12 themes, now on Google Play and Apps in Toss
Tarot Fortune — One-Card Tarot Reading App for 12 Themes
A one-card tarot app with 78 cards and 1,872 upright and reversed readings across 12 themes, now on Google Play and Apps in Toss
When to Start Teaching Hangul — Readiness Signs and Two Methods
The readiness signs that tell you a child is ready to learn Hangul, and how the whole-word and letter-based methods actually differ.
What I Learned Shipping 8 Apps as a Solo Dev with a Day Job
Eight apps built after work, and what actually went wrong — review rejections, yearly API bumps, and why releasing takes far longer than building
Math Monsters — A Math Practice Game Where Kids Catch Monsters
Addition, subtraction, multiplication and division drills for kids, wrapped in a game where every correct answer catches one more monster.
Hangul Monsters on Apps in Toss — Korean Listening Game, No Install
The kids' Korean learning game Hangul Monsters is now an Apps in Toss mini app, so it opens straight inside the Toss app with nothing to install.
Nursing Assistant Mock Exam — 2,400+ Original Practice Questions
A mock question bank for Korea's national nursing assistant exam, with 2,400+ original questions, explanations, timed CBT tests and wrong-answer notes.
Hangul Monsters — A Listen-and-Speak Korean Alphabet Game for Kids
A Korean learning game for kids that covers consonants, vowels, syllables, words and sentences, all voiced by native-quality neural speech.