I wanted something as multi purpose and extensible as possible, so that I can use this across several projects.
How it works (currently) is that it parses the C++ headers you give it and passes them through a Lua script you process, where then that file data is written to disk.
This way, you could for example, generate a C++ file specifying your reflection data.
This should be super useful if I ever want to implement interoperability in the future, which I do and am.