[Unit]
Description=SSH tunnel for Pi fan_controller socket (waybar widget)
After=network-online.target
Wants=network-online.target

[Service]
ExecStart=/usr/bin/ssh -N \
  -o ExitOnForwardFailure=yes \
  -o ServerAliveInterval=15 \
  -o ServerAliveCountMax=3 \
  -L 10250:/tmp/fan_controller.sock root@10.55.0.1
Restart=always
RestartSec=5

[Install]
WantedBy=default.target