So to summarise this a departure board which (as configured) shows the next train departure from Taunton to London. This is a dynamic display which is pulling the data from Real Time Trains using their API. In my case I am calling the API from my home automation platform (Homeassistant) which is running on a raspberry PI4 (bought in the days when Raspberry PI 4s were affordable

So if anyone is interested in more detail please feel free to add to this post.
