Linux without systemd: what to choose?

  ;; This is an operating system configuration template.

  (use-modules (gnu))

  (operating-system
    (host-name "antelope")
    (timezone "Europe/Paris")
    (locale "en_US.UTF-8")

    ;; Assuming /dev/sdX is the target hard disk, and "root" is
    ;; the label of the target root file system.
    (bootloader (grub-configuration (device "/dev/sdX")))
    (file-systems (cons (file-system
                          (device "root")
                          (title 'label)
                          (mount-point "/")
                          (type "ext4"))
                        %base-file-systems))

    ;; This is where user accounts are specified.  The "root"
    ;; account is implicit, and is initially created with the
    ;; empty password.
    (users (list (user-account
                  (name "alice")
                  (comment "Bob's sister")
                  (group "users")

                  ;; Adding the account to the "wheel" group
                  ;; makes it a sudoer.  Adding it to "audio"
                  ;; and "video" allows the user to play sound
                  ;; and access the webcam.
                  (supplementary-groups '("wheel"
                                          "audio" "video"))
                  (home-directory "/home/alice")))))