Where to get the "pkg" program to add packages from command line mentioned in https://studio.segger.com/index.htm?https://studio.segger.com/emBuild.htm package manger

We use Segger Embedded in our development and our continuous integration's automated build uses the emBuild to build our binaries.  We need a way to add packages from the command line on a linux machine for our build.  We find the documentation for a command line "package manager" in https://studio.segger.com/index.htm?https://studio.segger.com/emBuild.htm.  My question  is, where can I find and download this "package manager" so I can add packages to our automated build by command line.  Thanks.

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