I second this request, having the same use case as BigRed. Maybe a server side solution would be useful, but DAVdroid should offer a reminder filter, too.
Nextcloud has an open issue for this: https://github.com/nextcloud/server/issues/679
DAVdroid is a really brilliant app, thank you for your outstanding work! This was the reason, why I didn’t hesitate to pay for the app (usually I use freeware).
I have a request for a little improvement:
I use DAVdroid to have more privacy and to keep all my contacts and my appointments on my own server.
The server is only accessible internally, so it woulde be a useful feature to have a triggered synchronisation when I am in my own LAN (triggered by the name of the WLAN).
Best regards, Ben