Here is what I use to mount:
sshfs#[email protected]:/mnt/HD/HD_a2/owncloud /mnt/dietpi_userdata/owncloud_data fuse defaults,allow_other,_netdev,x-systemd.automount 0 0
192.168.0.X:/mnt/HD/HD_a2 /mnt/backup nfs nofail,noauto,x-systemd.automount
//192.168.0.X/USBDisk1_1 /mnt/torrents cifs cred=/var/lib/dietpi/dietpi-drive_manager/mnt-torrents.cred,iocharset=utf8,uid=dietpi,gid=dietpi,file_mode=0666,dir_mode=0777,vers=1.0,nofail,noauto,x-systemd.automount