Multiple displays using one home assistant system

I am trying to define a system that has home assistant running on a pi on a boat. It needs to share data with another pi that brings data from the boats NMEA bus (like a Canbus). I would like to have home assistance control lights and other non critical circuits on the boat. And then the big one, I would like to have multiple touchscreen displays throughout the boat to monitor and control systems.

Is this feasible? I would like the displays to run on 12v or less. Any suggestions on touchscreen alternatives?

Multiple touchscreen displays is the easy part for Home Assistant - I have several Android tablets on the wall in different rooms, with different dashboards. I’m sure most people have the same. This is how it is designed to work.

The hard part is probably going to be interfacing with the boat’s systems. HA does this sort of thing with integrations, purpose built by members of the community. If someone else has the same requirements, one may already exist. There is a list here:

The web interface works with multiple simultaneous users.

Usually an MQTT sensor can handle the connection between HA and the other Pi