Hi 👋🏻 I found a fork of your project made by a guy who seems interested in DIY bike navigation computer. He also forked my project, a navigation display for OsmAnd, that works surprisingly similar 😁 I was really wondered someone is making a navigation companion trying to solve the same problems I faced.

After I made the first version of my display, with arrows and distances, I found it useless – data refresh rate is too low, and just arrows without the map don't really give me much clue on where to turn on complex junctions. So I made a second version, that displays the real map.
Have you tried riding an unknown route having only step-by-step directions on the screen? What are your thoughts on that? Did they help you to navigate?