[Unit] Description=w3cs WebTransport bridge (QUIC command planes) After=network-online.target Wants=network-online.target [Service] # One bridge serves every seat: /seat/N on UDP 443 (primary; what # middleboxes let through) and UDP 4443 (legacy secondary) attaches to the # seat's relay WebSocket planes on 8144+N. Root only because the Let's # Encrypt private key behind /etc/ssl/w3cs is root-owned (and it binds # 443). nginx holds TCP 443; the UDP side is the bridge's. ExecStart=/usr/local/sbin/w3cs-wt-bridge Restart=always RestartSec=2 NoNewPrivileges=yes [Install] WantedBy=multi-user.target