sing-box/release/config/sing-box.service

[Unit]
Description=sing-box service
Documentation=https://sing-box.sagernet.org
After=network.target nss-lookup.target

[Service]
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
ExecStart=/usr/bin/sing-box run -c /etc/sing-box/config.json
Restart=on-failure
RestartSec=10s
LimitNOFILE=infinity

[Install]
WantedBy=multi-user.target