WebDav Synchronization
To setup WebDav synchronization, go to Repositories > Setup Sync > WebDav. Enter WebDav url, Username and Password.
If you want to synchronize with specific subfolder, then WebDav url should include your subfolder.
Tip
If you use private ssl certificates for your webdav server, tick Trust Private Certificate in WebDav synchronization dialog.
Information
Dot files and directories are not synchronized (eg. .attachments/ directories are ignored)
To setup Nextcloud synchronization, checkout this faq