[steiza_]

Many aperiodic tilings rely on "substitutions" which let you express very complicated patterns with some simple recursion.

I've found this maps well to express them in programming languages, like PostScript (although most implementations limit the stack at some point).

For an example of expressing these patterns in PostScript, and what it looks like on closet doors, check out https://github.com/steiza/postscript_fractals