Hey guys,
There is a simpler way of doing this:
Have a graphic on the screen, with an arrow that points in the direction of the sun (and/or moon) and an arrow that shows the direction that you need to go. Similar to an Automatic Direction Finder in an aircraft, with the beacon being the sun (or moon, or both) and an arrow (or bug) of where you need to go. And then you don’t need to worry about keeping the orientation of the Emlid or phone and know roughly where the sun is.
Just a thought on making it easier to use.