https://github.com/nanotee/nvim-lua-guide
https://learnxinyminutes.com/docs/lua/
https://github.com/medwatt/Notes/blob/main/Lua/Lua_Quick_Guide.ipynb
https://github.com/medwatt/Notes/blob/main/Lua/Lua_Quick_Guide.pdf

2013
http://tylerneylon.com/a/learn-lua/