Here is the service file I created to manage FileFlows starting and stopping and running on boot using systemd.
Create /etc/systemd/system/fileflows.service
file with the contents below (updating paths as necessary).
[Unit]
Description=FileFlows
ConditionPathExists=/root/FileFlows/Server
[Service]
WorkingDirectory=/root/FileFlows/Server
ExecStart=dotnet /root/FileFlows/Server/FileFlows.Server.dll --no-gui true
SyslogIdentifier=FileFlows
Restart=always
RestartSec=5
[Install]
WantedBy=multi-user.target
Once in place use the following:
Start on boot: systemctl enable fileflows.service
Start: systemctl start fileflows.service
Stop: systemctl stop fileflows.service
Status: systemctl status fileflows.service