There is. luarocks is basically the "pip" equivalent for lua, it installs packages (called "rocks") and manages dependencies. These packages can extend lua with all sorts of practical capabilities.

Ruby on Rails. 🚂🚃🚋🚃

Lua works smooth like butter with binary libraries written in C (since it's made to be embeddable in C), but also it's so fast that for many things people just do libraries in plain Lua.