Finally I managed to install freeboard dashboard in OpenPlotter v0.9.0 and is reading directly from Signal K. So we will be able to create sexy dashboards in our phones and tablets connected to OP without internet and create also dashboards in https://freeboard.io/ for remote monitoring through MQTT.
Thanks to Snijdor for pointing me in the right direction.
Thanks to Snijdor for pointing me in the right direction.