Just-Enuf Cyrus IMAP for standalone Card-/CalDAV?

[PGNet Dev]

I run my own smtp, imap & card/cal-dav services.

Atm, none are using Cyrus.

I'm well aware of Cyrus Imap's Cal/Card-dav support; particularly as the basis for FastMail's excellent services.

My current card/cal-dav is Radicale.  To my read, the project's crumbling.

I need to implement/deploy an alternative.

But, for **now**, ONLY for the *Dav pieces; I need to leave mail services as they are, at least 'til mid-2020.

For my domain, 'example.com' -- with smtp/imap @ host 'mx.example.com', I'd like to deploy a standalone Dav server elsewhere, @ host 'dav.example.com'.

I'd like it to be Cyrus based.

IIUC, Cyrus' *Dav are built on top of its IMAP install.

Can Cyrus be deployed in a standalone *Dav server mode like this?

Is there a doc/how-to/etc that address a Just-Enough-Cyrus-IMAP install  for this kind of setup?

Thx!