[Unit]
Description=NFSD configuration filesystem

PartOf=nfs-server.service
After=nfs-module.service

[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=-/usr/bin/mount -t nfsd nfsd /proc/fs/nfsd
ExecStop=-/usr/bin/umount /proc/fs/nfsd

[X-Synology]