This project requires CMake to build.
The source code is in /src
Download the 'C++ CMake tools for Windows' if it is not already installed.
Tools > Get Tools and Features... > Individual components > C++ CMake tools for Windows.
Open the folder like normal and Visual Studio will load it as a CMake project.
Build like normal.
Prerequisites: CMake, gcc, make
You can probably build using other tools and compilers but this works for me.
From the git repository you downloaded, run these commands.
mkdir build
cd build
cmake ../
make