cme provides a command to check or edit configuration data with
 Config::Model.
 .
 cme and Config::Model are quite modular: the configuration data that
 you can edit depend on installed packages. I.e.:
  - ssh client or ssh daemon config: libconfig-model-openssh-perl
  - approx config: libconfig-model-approx-perl
  - lcdproc config: libconfig-model-lcdproc-perl
  - popcon config: provided with libconfig-model-perl
  - systemd config: provided with libconfig-model-systemd-perl
 .
 Some applications can be handled by cme:
  - Debian package files: libconfig-model-dpkg-perl
  - multistrap files: provided with libconfig-model-perl
 .
 You can also choose a user interface:
  - graphical, based on Tk: libconfig-model-tkui-perl
  - curses based: libconfig-model-cursesui-perl
  - simple shell: provided with libconfig-model-perl
 .
 Last but not least, you can also take a stab at maintaining
 configuration model with libconfig-model-itself-perl.