Backing up remote rclone to local disk

Restic appears to have excellent support for backing up local disk contents to a remote backend via rclone. I have the opposite problem: I have an rclone remote, but would like to back it up to a local disk. Is it possible to do this with Restic?

It seems the restic backup subcommand only takes local disk files as the source argument, with restic backup -r <local repository> FILE/DIR, but what I would like to do is restic backup -r <local repository> rclone:remote-backend

(Apologies if this has been asked before, I did try searching Google and the forums but it’s difficult to express because most topics are going the other way)

You can use rclone mount to make the remote available as a local volume, then run restic backup against the mountpoint.