> Processes and workflows are composed using a domain specific language embedded in the general purpose language Scheme. They can be executed in order with the

> Processes and workflows are composed using a domain specific language embedded in the general purpose language Scheme. They can be executed in order with the guix workflow command. So I guess it's just a set of macros for Guile (which I believe is a Scheme implementation, or contains a Scheme implementation, or something like that...).