Cyrus has a built in card/caldav support. Nextcloud works just fine with davx on android and evolution on linux for car/cal/tasks. Radicale is fine for card/c

Cyrus has a built in card/caldav support. Nextcloud works just fine with davx on android and evolution on linux for car/cal/tasks. Radicale is fine for card/cal, but it's basic. This scene used to be a lot worse.