I have a Nextcloud instance and I want to mount it as a directory on my local machine. Since Nextcloud cloud supports the WebDAV protocol its possible to do this by installing davfs2 which can mount a WebDAV resource.
The first thing I had to do was install davfs2.
$ sudo pacman -S davfs2
Next I created the directory where Nextcloud would be mounted.
$ mkdir -p .local/share/nextcloud
I then needed to tell Arch how to mount Nextcloud by adding the below line to the /etc/fstab file.
https://my-nextcloud-server.com/path /home/david/.local/share/nextcloud davfs rw,user,uid=david,noauto 0 0
Since access to Nextcloud is controlled by a username and password these where added to the ~/.davfs2 file.
https://my-nextcloud-server.com/path username password
I made sure this file had the correct permissions to ensure security.
$ chmod 600 ~/.davfs2/secrets
Now I can mount Nextcloud and access my files just like any others.
$ mount .local/share/nextcloud