Things I've built or am building.
A private, installable PWA for keeping the encouragement of the people who love you — voice, photo, a kind word, a short clip — and surfacing it on the hard days. One codebase: zero-account local to full production infra by env var alone.
Next.js 16 · React 19 · TypeScript · PostgreSQL · Drizzle · PWA · Web Push · S3 / R2 · Terraform · Tailwind v4
A macOS desktop tool that translates abstract AI instructions ('open VS Code, edit X') into concrete pointer actions on your actual screen — via ScreenCaptureKit + Accessibility APIs + a vision LLM.
Swift 6.3 · SwiftUI + AppKit · ScreenCaptureKit · AXUIElement · Vision OCR · Anthropic Claude Sonnet 4.6 (vision) · Gemini 2.5 Flash
A real-time English assistant for Koreans on working-holiday visas, targeting Meta Ray-Ban Display. iPhone app + Bun backend + Gemini vision; building against a Mock Device Kit while Display SDK access is pending.
Swift / iOS · Bun · Node.js · Gemini 2.5 Flash (vision) · BLE · Mock Device Kit
One window for every startup you're running — a native, multi-pane terminal command deck for the solo founder who brings their own AI (Claude Code / Codex). Tauri + Rust, macOS.
Tauri 2 · Rust · React 19 · TypeScript · xterm.js · portable-pty · tmux
This site. Bilingual blog + private admin dashboard for drafts and distribution.
Next.js 15 · TypeScript · Tailwind · MDX · Vercel
Turn any YouTube video into spaced-repetition English shadowing, plus daily drills for the grammar patterns, collocations, and prepositions that never come automatically. Java/Spring + Next.js, built solo.
Java 21 · Spring Boot 3.3 · PostgreSQL 16 · Next.js 16 · TypeScript · Gemini / Claude · AWS ECS