Cairomakie doesn’t have it, but I think one could monkey patch it in. I don’t know where they apply the style that makes the lines jiggly, but that’s half of it, the other is just the font. So if one were to find out how to do the line style with cairo that would get them most of the way there.
It must be some transformation of the paths coming in, but it needs to be done such that it doesn’t matter how close together the line points are I guess? So maybe not completely trivial to do.