You can try out Guile Aux library from my personal Guix channel as follows:
cd /tmp git clone https://codeberg.org/luis-felipe/guix-channel-x guix shell -L guix-channel-x guile texinfo guile-aux
Now you can import any module from Guile Aux library. For example,
let’s use the delete-pos procedure from the (aux string)
module:
guile ... > (use-modules (aux string)) > (delete-pos "peace" 1) $1 = "pace"
If you leave the Guile REPL now (Ctrl+D), you’ll see that you can also browse Guile Aux info manual. Try the following:
info guile-aux
You can leave the manual by pressing Q. And leave the Guix shell pressing Ctrl+D.