For some time now I have been planning to deal with the topic of indoor navigation. I want to have a look at how the interface can look like and above all what advantages indoor navigation can have for the user in practice. In this very raw concept, I have implemented it within a library application (it could also be used for other places like airports, fairgrounds or other public places). In this example, users can navigate directly to a book (or other medium), POI or many more. Of course indoor navigation has special technical challenges. But I already know of projects, apart from Google, that are working on this exciting solution.
I will continue to work on this project. Let me know what you think of the idea. Thanks for likes, comments and feedback.