Xanza

Caddy.

{
    order webdav before file_server
}

webdav.example.com {
    root * /data/webdav
    basicauth {
        user1 hashed-password
    }
    webdav
}

Takes less than a minute.

I really like my Synology NAS, but if I had to do it again, I would roll my own with one of the Mini-PC's from Amazon. They're essentially just as expensive as the Synology hardware and you can make due by installing Rockstor or something similar. You won't get the same experience as the Synology setup, but IMO it's not really worth the underpowered hardware. I would much rather have something significantly more powerful like the Mini-PC to be able to run containers on without having to worry about system resources.