I can't seem to find a way to install nmatrix (a version that works) for both MacOSX and Ubuntu. Our dev team has MacOSX machines for local deployment and our Ruby application is deployed in an Ubuntu server.
As a work-around, nmatrix -v '0.2.0' is deployed in our Ubuntu server and we use nmatrix -v '0.2.4' in our local machines.
Error for installing nmatrix 0.2.0 on MacOS High Sierra 10.13.6:

Error for installing nmatrix 0.2.4 on Ubuntu 14.04:
