You can set up your devices using their integrations, but if you wish to use a standalone client for your Calendar and Contacts syncing, we recommend Mozilla’s Thunderbird.
Install the Calendar and Contacts apps in Nextcloud if they are not currently installed.
Add your RootCA to your system and then configure Thunderbird.
Select Calendar or Contacts from below to complete each unique setup:
In Thunderbird, click on the calendar icon, then “New Address Book” in the bottom-left.
Choose “On the network,” then click “Next”.
Fill in the Username and Location fields with the credentials from Nextcloud > Properties on your Start9 server. Click “Find calendars”.
Create a unique app password - In your Nextcloud WebUI, visit the top-right-hand menu and select “Personal Settings” -> “Security.” At the bottom, under “Devices & Sessions,” create a new app password with a name of your choice, such as “CalDAV.” Copy the resulting password and paste it into Thunderbird.
Check which calendars you want to integrate and click “Subscribe”.
Your Nextcloud calendar will now sync with Thunderbird. Click on the “Contacts” tab above to add your contacts.
Click on the Address Book icon, open the drop-down menu for “New Address Book” and click “Add CarDav Address Book”.
Fill in the Username and Location fields with the credentials from Nextcloud > Properties on your Start9 server. Click “Continue”.
Create a unique app password - In your Nextcloud WebUI, visit the top-right-hand menu and select “Personal Settings” -> “Security.” At the bottom, under “Devices & Sessions,” create a new app password with a name of your choice, such as “CalDAV.” Copy the resulting password and paste it into Thunderbird.
Your Nextcloud contacts will now sync with Thunderbird.