MotorHome, Rv Raspberrypi

Helllo

i am looking to run HomeAssisatnt in my MotorHome, i don’t need to push data over the web, i would like to built a small dashboard to display some information’s such Temperatures, Solar Victron data over MQTT…etc…

How could i run it ?

Could i run it over a Hotspot?
Could the RaspberryPi be a access point?

Any help would be appreciated