[bug#46031] services: cuirass: Add "simple-cuirass-services".

[Jonathan Brielmaier]

On 22.01.21 18:55, Mathieu Othacehe wrote:
> Hello Jonathan,
>
> > It gave me this error: https://paste.opensuse.org/view/raw/110509
>
> Thanks for testing! Be careful, "simple-cuirass-services" returns a list
> of services and has to be appended to the list of other services.

That is the problem, because of changes to guix-daemon. I have following
construct:

(services
  (cons*
    (service a-service-type)
    [...]
    (service z-service-type)
    (modify-services %base-services
      (guix-service-type config =>
        (guix-configuration
          (inherit config)
          (extra-options '("--cores=x")))))))