The library and the executable is intended to use the functionality of the :

1) R programming language https://www.r-project.org/

2) Rglpk library https://cran.r-project.org/web/packages/Rglpk/index.html

3) GNU GLPK library https://www.gnu.org/software/glpk/glpk.html

For more information, please, see the documentation for them.