How to easily run a Webdav server in a Docker container

A lot of open source software lets you synchronise data via webdav, but how do you get a #webdav server?
Using Apache with the dav module is a common approach, but I couldn't bother to set it up that way.
My way is different: Rclone can act as a webdav server and is easy to configure.
I've been using it for 3 years and it's very reliable.
Have a look at the compose file in the picture.
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