I made this line drawing sketch using p5.js. The best way to view it is to full screen your browser. In Chrome that means clicking on the green circle in the top left of the window. You may also want to go under view and make sure "Always Show Tool-bar in Fullscreen" is not checked.
Part of the fun (I think) lies in discovering the interface, so I won't spoil how to play. It's not a game and there's no win state. Make sure you see that there are controls at the bottom of the screen and you can mouse over the drawing machine for more controls.
Link to sketch