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Live · Open sourceA 3D server room for my AWS Lightsail server. The rack LEDs show each container's real status.
Things I designed, built and keep running myself. Each one says where it stands.


A 3D server room for my AWS Lightsail server. The rack LEDs show each container's real status.

A Claude Code skill that redraws a Mermaid block or an architecture sketch as a clean diagram. Boxes and arrows in JSON, SVG and PNG out.


A messenger for two, with a tiny pixel buddy you raise together just by chatting.


Search UR rental vacancies by your conditions and track rooms that are new, relisted or gone. The website and AI assistants work from the same conditions and history.

Your year of GitHub contributions, painted as a watercolor plant: one leaf for each day. Paste one line into your README to use it.


A payday investing bot that copies your habits, and AI bots that set the mix every day. All of them run on my real account at 1/100 scale.


“Who's that Pokémon?” as a Game Boy–style battle, with a Gen 1 Pokédex and a sticker book — plus a turn-based Pikachu battle I built in Unity. In Korean, English and Japanese.


A self-custody stablecoin wallet for iPhone. The keys stay on the phone, and every payment is signed there after Face ID.