I really enjoyed this set of tutorials for Tic-80, which also uses Lua (or Fennel/Moonscript/Wren/JS). The series was a really great intro not just the tic-80 engine, but programming concepts in general. A friend of mine was able to take some of the concepts he learned and was able to improve the bit of spreadsheet/data munching that he has to do for his otherwise non-technical work.

(https://m.youtube.com/playlist?list=PLvOT6zBnJyYF3FzmfXz2QXM...)