scheme@(gnu services configuration)> ,pp (sort (fold-configurations (lambda (m s res)
                                                                       (cons s res))
                                                                     '())
                                               (lambda (x y)
                                                 (string<? (symbol->string x) (symbol->string y))))
$16 = (alsa-ctl-configuration
       alsa-pcm-configuration
       apcupsd-configuration
       apcupsd-event-handlers
       autofs-configuration
       autofs-indirect-map
       autofs-map-entry
       backend-userroot-configuration
       btrfs-scrub-configuration
       cachefilesd-configuration
       cgit-configuration
       collectd-configuration
       collectd-plugin-generic
       collectd-plugin-python
       connman-general-configuration
       containerd-configuration
       cups-configuration
       dconf-configuration
       dconf-keyfile
       dconf-profile
       dhcpcd-configuration
       dict-configuration
       directory-server-instance-configuration
       docker-configuration
       dovecot-configuration
       elogind-configuration
       ext-component-configuration
       fail2ban-configuration
       fail2ban-ignore-cache-configuration
       fail2ban-jail-action-configuration
       fail2ban-jail-configuration
       fail2ban-jail-filter-configuration
       fifo-listener-configuration
       file-database-configuration
       files-configuration
       forgejo-configuration
       fossil-configuration
       fprintd-configuration
       fstrim-configuration
       fwupd-configuration
       gardenhostd-configuration
       getmail-configuration
       getmail-configuration-file
       getmail-destination-configuration
       getmail-options-configuration
       getmail-retriever-configuration
       gnome-desktop-configuration
       inet-listener-configuration
       int-component-configuration
       iwd-configuration
       iwd-general-settings
       iwd-network-settings
       iwd-scan-settings
       iwd-settings
       jami-account
       jami-configuration
       joycond-configuration
       kmonad-configuration
       krb5-configuration
       krb5-realm
       libvirt-configuration
       lightdm-configuration
       lightdm-gtk-greeter-configuration
       lightdm-seat-configuration
       location-access-control
       log-rotation-configuration
       luanti-configuration
       mailbox-configuration
       method-access-control
       miniflux-configuration
       mod-muc-configuration
       mollysocket-configuration
       mpd-configuration
       mpd-output
       mpd-partition
       mpd-plugin
       mympd-configuration
       mympd-ip-acl
       namespace-configuration
       nftables-configuration
       ngircd-channel
       ngircd-configuration
       ngircd-global
       ngircd-limits
       ngircd-operator
       ngircd-options
       ngircd-server
       ngircd-ssl
       nslcd-configuration
       oci-configuration
       oci-container-configuration
       oci-extension
       oci-image
       oci-network-configuration
       oci-volume-configuration
       opaque-cgit-configuration
       opaque-cups-configuration
       opaque-dovecot-configuration
       opaque-prosody-configuration
       opendht-configuration
       opensnitch-configuration
       openvpn-ccd-configuration
       openvpn-client-configuration
       openvpn-remote-configuration
       openvpn-server-configuration
       operation-access-control
       package-database-configuration
       pam-mount-volume
       passdb-configuration
       plugin-configuration
       policy-configuration
       pounce-configuration
       power-profiles-daemon-configuration
       powertop-configuration
       prosody-configuration
       protocol-configuration
       qemu-guest-agent-configuration
       radicale-auth-configuration
       radicale-configuration
       radicale-encoding-configuration
       radicale-logging-configuration
       radicale-rights-configuration
       radicale-server-configuration
       radicale-storage-configuration
       redis-configuration
       repository-cgit-configuration
       restic-backup-job
       rootless-podman-configuration
       rspamd-configuration
       sane-configuration
       screen-locker-configuration
       service-configuration
       shared-cache-configuration
       slapd-configuration
       snuik-configuration
       sogogi-configuration
       sogogi-location
       sogogi-user
       soju-configuration
       soju-database
       soju-ssl
       speakersafetyd-configuration
       ssl-configuration
       system-log-configuration
       tlp-configuration
       tor-onion-service-configuration
       transmission-daemon-configuration
       tuned-configuration
       tuned-ppd-settings
       tuned-settings
       unbound-configuration
       unbound-remote
       unbound-server
       unbound-zone
       unix-listener-configuration
       userdb-configuration
       vfs-mapping-configuration
       virtualhost-configuration
       vnstat-configuration
       whoogle-configuration
       xandikos-configuration
       xe-guest-utilities-configuration
       xen-guest-agent-configuration
       xvnc-configuration
       zabbix-agent-configuration
       zabbix-front-end-configuration
       zabbix-server-configuration)
scheme@(gnu services configuration)>