Workmate
This site — free tool hub for Korean professionals
47 calculators based on Korean standards (KEC, KS, NDS, building code). No-ad, mobile-first, with KS source attribution on every page.
Next.js 15TypeScriptTailwind v4Vercel
Current siteMaker projects
Ten projects built by one person
Games, SaaS, and experiments built alongside Workmate. Solo full-stack — idea → design → code → deploy → operate, all in one cycle.
Featured work
K-Poker
Hwatu roguelike — new deck, new boss every run
A roguelike built on Korean card game rules (Go-Stop, Matgo). Seed-locked seeds, escalating bosses, deep deck-building.
FlutterRiverpodHiveRoguelike
OpenHaewonmun Tower Defense
Korean martial-arts universe defense RPG
Flame-engine TD. Character growth, gear upgrades, stage bosses — landscape-optimized mobile play.
FlutterFlameTower DefenseRPG
External linkHakrew
Korean academy SaaS — attendance, billing, AI care notes
All-in-one platform for solo academy owners. RBAC × students × teachers × payments × Gemini-powered counselor notes.
FlutterSupabaseGemini AIHive
External linkOther projects
Doc Translator
AI document translation SaaS with domain glossaries
Upload DOCX/PDF → apply domain glossaries (legal/medical/tech) → Gemini translates → export with original layout preserved.
Next.jsSupabaseGeminiPDF
External linkOffice Hunter
Workplace culture audit + anonymous community
8-axis self-audit of your workplace, then compare anonymously. Vertex AI auto-scores answer credibility.
Next.jsSupabaseVertex AI
External linkJeonju Market Analysis
Local commerce dashboard for Jeonju (Korea)
Visualize sales, demographics, competitor density by district. Kakao Maps heatmap + revenue trend charts.
Next.jsSupabaseKakao Maps
External link6 Hours
Political thriller text adventure
A political conspiracy with a 6-hour decision deadline. Branching tree, time pressure, multi-endings, choice comparison.
Next.jsSupabaseInteractive Fiction
External linkAI Trade
AI-assisted stock trading platform
FastAPI backend + Next.js dashboard. Live quotes, news NLP, strategy backtesting, auto-alerts. Backend live demo private.
FastAPINext.jsPostgreSQLAI
External linkStrix
Autonomous AI orchestrator on LangGraph
Give it a one-line goal — it plans, executes, verifies, self-corrects. Built-in tool calls, memory, retries.
LangGraphGeminiCLI
External linkWhy so many
Build the tools missing in practice
Electric calculators, academy SaaS, document translation — all born from hitting limits in existing tools. Practitioners build different details.
Korean-standard first
KEC, KS, NDS, building code, 4 major insurances — global tools miss the details. Translating foreign sites doesn't work for Korean compliance.
Solo full-stack in the AI era
Flutter, Next.js, Supabase, Gemini, LangGraph — running modern stacks in small units, validating and iterating faster than larger teams can.