First Bookshelf Buddy prototype demo

A demonstration of my first Bookshelf Buddy device, based on a Raspberry Pi 3A+. The Pi is running, connected to power and a speaker. When I insert a USB stick containing the token for a file on my [Audiobookshelf](https://www.audiobookshelf.org/) server, it starts playing the book from where it left off. When I remove the stick again, it stops playing. The Pi is running my code which can be found on [GitLab](https://gitlab.com/bookshelfbuddy/bookshelfbuddy-go).