I thought it would be nice to have a GNSS satellite display program that showed the sky like you see it (sort of!) so I wrote gnssview. Some of its features are:
Communicates with the GNSS receiver via UDP multicast (this means you need to provide a program that multicasts satellite positions)
Displays the tracks of satellites across the sky and signal strength.
It animates the position of the sun based on your location. An analytic sky model is used to produce a realistic-looking sky, based on the current position of the sun. When the sun goes down, an image of the night sky is used.
Looks best with a user-supplied 360 degree panoramic photo. I used hugin to make my panorama.
It moves. The view is a continuous pan across the panorama. Makes it look a bit more dynamic since the satellites move quite slowly.
There's a configuration file that allows you to play with many settings
It can power down the display at programmed times to save power and the monitor.