KDE Itinerary application, associated libraries and KMail plug-in.
Mailing list: https://mail.kde.org/mailman/listinfo/kde-pim
Repositories:
https://phabricator.kde.org/source/kpkpass/ (Apple Wallet pass handling)
https://phabricator.kde.org/source/kitinerary/ (Data model/extraction/augmentation)
https://phabricator.kde.org/source/itinerary/ (mobile app)
https://phabricator.kde.org/source/kdepim-addons/ (KMail plug-in)