====== Self hosted calendar, and Contacts ======
CalDav Server:
  * [[https://sabre.io/baikal/|Baïkal CalDav Server]] (needs only PHP, SQLite)

Clients:
  * PC: Vivaldi, Thunderbird
  * Thunderbird also for contact management
  * Android: DAVx⁵ for Syncing Calendars to device, ICSx⁵ for syncing external WebICS Calendars.
  * org.fossify.calendar as Android-GUI for the calendars.

Calender Sharing:
  * Log in (with your user account, not with the admin account) to <YOUR SERVER>/dav.php, navigate to calender, at the bottom share with other user on your server (incl. mailto:). (You may need to create those users), see https://devblog.yvn.no/posts/baikal-caldav-hosting/