It's cool. Curious what libraries you're building on, from a web front-end perspective, to make the UI and charts etc?

Mostly pretty standard React stuff: React + Vite + TypeScript, Tailwind for styling, and shadcn/ui (on top of Radix) for most UI components. Charts are done with Recharts.

The actual simulation and arena rendering is all custom using the Canvas 2D API, no rendering libraries there.