[Unit]
Description=Enable Wake on LAN on all ethernet interfaces
After=network.target

[Service]
Type=oneshot
# Włącza WoL (g = magic packet) na każdym interfejsie sieciowym
ExecStart=/bin/bash -c '\
  for iface in $(ls /sys/class/net | grep -v lo); do \
    ethtool -s "$iface" wol g 2>/dev/null \
      && echo "WoL enabled: $iface" \
      || true; \
  done'
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target