I wrote a small "game" to showcase concurrent agents (via a library) working in a React app.

It demonstrates how a React program can be written with DOD-inspired pattern to make it easy to reason about, straightforward in re-render instruction semantic. Thus as the side effect the program is performant.

You're invited to view the source to examine the neat design pattern underneath as well as the agent management library that powers the app.

Caveat: it doesn't work well in mobile yet, so switch to desktop site mode.