- https://github.com/lua-stdlib/lua-stdlib (github.com)
- https://github.com/lua-stdlib/strict (github.com)
- https://github.com/lua-stdlib/functional (github.com)
- https://github.com/jhoonb/functional-lua (github.com)
- https://github.com/ezerfernandes/funkmoon (github.com)
- https://github.com/gvvaughan/typecheck (github.com)
- https://github.com/luafun (github.com)