Nelson includes code from the following projects, which have their own licenses:
- Eigen
a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms:
http://eigen.tuxfamily.org/index.php?title=Main_Page#License
- fmtlib
A modern formatting library
https://github.com/fmtlib/fmt/blob/master/LICENSE.rst MIT license
- stduuid
A C++17 cross-platform implementation for UUIDs