Running through bookmarks lately, I rediscovered a novel piece of programming by one Nathan Friend, of Des Moines, IA, who is a front end engineer. Finding time to "hack away at side projects" he has created a digital Spirograph, written in TypeScript, that he's dubbed the Inspirograph. Pretty catchy, right?
Try it out here and take some time to view some of the thousands of images people have created and uploaded to the gallery.
My initial attempt, along with vintage Spirograph instructions, is here and I can tell you that I have quite forgotten how I did it, making some of the gallery submissions all the more impressive.