systemctl.service.example

[Service]
Type=simple
PIDFile=/run/poker.pid
WorkingDirectory=/home/poker/planning-poker
User=poker
Group=poker
Environment=RACK_ENV=production
OOMScoreAdjust=-1000
Restart=always
RestartSec=10
ExecStart=/bin/bash -c 'source ~/.nvm/nvm.sh; nvm use v16.15.1; npm start'

[Install]
WantedBy=multi-user.target