System units go in /etc/systemd/system
User units go in $HOME/.config/systemd/user
[Unit]
Description=Webring test service
After=network.target
StartLimitIntervalSec=0
[Service]
Type=simple
Restart=always
RestartSec=1
WorkingDir=/code/webring
ExecStart=/code/webring/webring --dsn /code/webring/webring.db --addr :8000
[Install]
WantedBy=multi-user.target