khal 1:0.9.8-1 (ppc64el binary) in ubuntu cosmic

 Features:
  - khal can read and write events/icalendars to vdir, so vdirsyncer can be
    used to synchronize calendars with a variety of other programs, for
    example CalDAV servers.
  - fast and easy way to add new events
  - ikhal (interactive khal) lets you browse and edit calendars and events