[Unit]
Description=RPC Pipe File System

After=nfs-module.service systemd-tmpfiles-setup.service
PartOf=nfs-server.service

[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=-/usr/bin/mount -t rpc_pipefs -o nodev,nosuid,noexec sunrpc /var/lib/nfs/rpc_pipefs
ExecStop=-/usr/bin/umount /var/lib/nfs/rpc_pipefs

[X-Synology]