It's interesting to see code bases like this. It does sort of have it all, custom build system, IDL, implementations of things like XML and JPEG. Very symptomatic of the need slowly being filled in the C++ community for a popular build system and package manager.

I hope the author reconsiders their custom license that prevents any public forks of the code base. It's already very hard to get anything out of non-standard monoliths like this, with a custom license that chance drops close to zero.