Ludovic Courtès <ludo@gnu.org> writes:

> A little-known feature of Emacs-Guix is C-c . u (guix-devel-use-module),
> which allows you to load a module without compiling it with C-c C-k.
> It’s fast and non-intrusive, unlike C-c C-k.

Thanks for the tip.
Although recently I've found Emacs-Guix increasingly unusable with many
features reporting errors
(e.g. package completion).

-- 
Pierre Neidhardt
https://ambrevar.xyz/