I build products
and keep them running.
Web tools and AI products — designed, built, deployed, and operated end-to-end by one person. Everything on this page is live on my own infrastructure right now.
A self-hosted workspace for AI image and video generation — revision history, output management, and an admin panel. Built because I use it every day.
Shipped & running
Self-hosted workspace for AI image and video generation. Revision history, output management, admin panel — in daily production use.
Trading interface for strategy tracking, risk controls, and live market monitoring.
English vocab app in daily use — spaced repetition, review queues, progress tracking, AI conversation practice.
Full chat platform built from scratch — file uploads, image generation, and an admin panel.
I'm an independent developer in Korea, running xenostone as a one-person product studio. I take ideas from first sketch to production: frontend, backend, AI integration, and the Linux servers everything runs on. If it's on this page, I built it, deployed it, and I'm the one keeping it alive.