I made this guy last week, based on Geilis's superformula + SVG path interpolation. It may run slowly on older computers as it's a high-resolution chord approximation https://moea.github.io/cromulator/ — it randomly cycles through the output space as constrained by the parameters, after tweening as dramatically as it can back and forth between two paths

i should probably have made the resolution configurable

I'm going to spam this here too, even though it's not CLJS, because it's only about 10 lines of JS + a bunch of GLSL. Give it a chance after it goes blue, it gets pretty wild https://moea.github.io/terrafractyl/