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I wonder why it is not in Guile? I thought one of the selling points of Guix was one config language to rule them all. Or is it some syntactic sugar on top of Guile? It's not clear. The page doesn't really explain the syntax clearly anywhere so I'm a bit confused.

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I think it is actually in Guile. Even though there are not parens in sight, this is a whitespace-based syntax for Scheme.

I don't have a reference at hand now, but I vaguely remember such a comment from the FOSDEM presentation.

It is implemented in Guile. The language is just syntactic sugar via macros and utilizes WISP.

https://git.savannah.gnu.org/cgit/gwl.git/tree/gwl/sugar.scm https://srfi.schemers.org/srfi-119/srfi-119.html

> 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...).

Guile is an implementation of Scheme that supports Revised^5 and a good chunk of Revised^6.

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