(services (cons* (gnome-desktop-service)

(modify-services %desktop-services

(guix-service-type config =>

(guix-configuration

(inherit config)

(use-substitutes? #f)

(extra-options '("--cores=4 --max-jobs=5")))))

(console-keymap-service "us")

(name-service-switch %mdns-host-lookup-nss))))