Mike Pall's words of wisdom:
http://lua-users.org/lists/lua-l/2009-11/msg00089.html
https://www.reddit.com/r/programming/comments/19gv4c/comment/c8nyejd/?utm_source=share&utm_medium=web2x&context=3
https://www.reddit.com/r/programming/comments/badl2/comment/c0lrus0/?utm_source=share&utm_medium=web2x&context=3
Forth research:
https://www.complang.tuwien.ac.at/projects/interpreters.html
https://github.com/ForthPapersMirror/Papers
https://www.complang.tuwien.ac.at/papers/