I got nerd-sniped into re-implementing this in Node. Running on a local server and reusing buttons to minimize DOM exploding it's fast enough to need serverside

I got nerd-sniped into re-implementing this in Node. Running on a local server and reusing buttons to minimize DOM exploding it's fast enough to need serverside key debounce. I suspect the original author chose to re-send the entire button set to avoid this.