Nooki
A pixel-art island for hanging out with friends, with voice chat that fades as you walk away. Three versions, the last one started from scratch on September 28, and all the code written with Claude Code.
Colyseus
The multiplayer server behind Nooki. I use it for real-time rooms: the state sent to each player, the prediction of their steps in the browser, and tests that run a whole room without a network.