[Unit]
Description=Custom Application Service
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=appuser
Group=appuser
WorkingDirectory=/opt/myapp
ExecStart=/opt/myapp/run.sh
Restart=on-failure
RestartSec=5s
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target