I built it as a plain single C file. You can find DrDobbs journal Vol 1 from 1976 with implementation ideas in the internet archive. It is a very retro approach

I built it as a plain single C file. You can find DrDobbs journal Vol 1 from 1976 with implementation ideas in the internet archive. It is a very retro approach. Just a fun side project. I am sure there are better ways to do it.