antikythera CalDAV/CardDAV server in Haskell Basic Ideas We need full compliance with the RFCs for CalDAV and CardDav (e.g.: RFC4791) web handling via Snap or Yesod -> For now I (nek0) am going with yesod, because of familiarity. There are some libraries covering some aspects of the Task: VCard: vcard or hs-vcard WebDAV: DAV iCalendar: iCalendar