Contemporary docs are in the [C++ Toolkit Book](https://ncbi.github.io/cxx-toolkit/). In particular: [C++ Toolkit build instructions (with CMake)](https://ncbi.github.io/cxx-toolkit/pages/ch_cmconfig). _EXPERIMENTAL_: There is also a [C++ Toolkit Conan package](https://github.com/ncbi/ncbi-cxx-toolkit-conan).