On 2022-09-23, gottfried@posteo.de wrote:
> I installed a VM software and I added libvirt and virtualization in my 
> config.scm file (see below)
...
>    (users (cons* (user-account
>                    (name "gfp")
>                    (comment "Gfp")
>                    (group "users")
>                    (home-directory "/home/gfp")
>                    (supplementary-groups
>                      '("wheel" "netdev" "audio" "video")))
>                  %base-user-accounts))
...
>              (service libvirt-service-type
>                       (libvirt-configuration
>                        (unix-sock-group "libvirt")
>                        (tls-port "16555"))))
...
> It seems I don't have the rights to start libvirt.
>
> How can I now solve the problem?
> Any thoughts?

I would add your user the to group you configure libvirt-service-type
with, e.g. "libvirt" ... or configure libvirt-service-type with a
different group that your user is already a part of.

live well,
  vagrant