sol2 https://github.com/EpicGames/zen/tree/main/thirdparty/ Sol v2.0 - a C++ <-> Lua API wrapper with advanced features and top notch performance - is here, and it's great https://github.com/ThePhD/sol2/blob/develop/LICENSE.txt Licensees Git P4 https://github.com/EpicGames/zen/tree/main/thirdparty/licenses