merkuro binary package in Ubuntu Oracular arm64

 Merkuro is a small collection of applications to manage your calendar, your
 mail and your addressbook.
 .
 Merkuro Calendar is a Kirigami based calendar and task management application
 that uses Akonadi. It lets you add, edit and delete events and tasks from
 local and remote accounts of your choice, while keeping changes synchronised
 across your Plasma desktop or phone.
 .
 Merkuro Contact is a Kirigami based addressbook application.
 .
 Merkuro Mail is a work-in-progress mail application that uses Akonadi. For now,
 it just allows you to read your mail.

Source package