What support is there for distributed builds?

[Josh Marshall]

Hello all,

A colleague of mine has a set of scripts and program pipeline thing he
regularly uses to generate a few analysis files.  It just so happens that
how he handles this works identically to software packaging with a custom
build system.

Currently, his work has been put into a higher level language called
nextflow.  It is fairly analogous to gwl.  From this, what is the support
like for using external distributed computing tool, and gwl for building
packages?  This would be analogous to trying to build an utterly massive
codebase in a cloud environment.