pelzflorian (Florian Pelz) schreef op za 26-03-2022 om 12:06 [+0100]:
> * Lastly I grafted
> 
> (define-public shepherd
>   (package
>     (name "shepherd")
>     (replacement new-shepherd)
>     …

Grafting is not necessary.  See (guix)Shepherd Services:


       ;; Use own Shepherd package.
       (essential-services
        (modify-services (operating-system-default-essential-services
                          this-operating-system)
          (shepherd-root-service-type config => (shepherd-configuration
                                                 (inherit config)
                                                 (shepherd my-
shepherd))))))