The scheme syntax gets a while to get used to if you are not familiar with it, and in the end having a real programming language is quite awesome, you can do lots of fun stuff like programmatically create a file or dir for every user of a certain group, etc.

Take a look at this

https://guix-hosting.com/docs/tuto/getting-started.html

To see how one can use macros to redefine the syntax to get an imperative-like syntax for defining services.

Disclaimer: i run guix-hosting.com