When I posted on the Lua mailing list about the first release of LuaRT, a lot of questions raised about UTF8 strings.
I discovered that some persons don't really know what strings are in Lua, and decided to post an article about that.
It explains why I decided to natively include support for UTF8 strings in LuaRT.
https://dev.to/samyeyo/lua-strings-are-not-strings-6f4