Docker volume via CIFS fstab on Synology NAS

My syno shares use:

The Hostname points to my subnet where my docker nodes are. Instead of Squash all uid/gid to the admin, I leave them as they are an make sure my container uses the same uid/gid. Regarding Securtiy: do you realy use kerberos?

I declare the named volume in the compose file like this:

volumes:
  myvolume:
    driver_opts:
      type: nfs 
      o: addr=192.168.200.19,nfsvers=4
      device: :/volume1/myshare/subfolder

Since years, it works like a charme like this.