FriendlyPix is a simple photo sharing app built on Firebase to showcase its features for developers. FriendlyPix is open source and you can learn more about it or view the source code at FriendlyPix teaches developers how Firebase can support the following: * User posting of photos. * Searching for user profiles. * Following accounts to include them in a Home feed. * Showing the latest photos in the Trending feed. * User commenting for each photo.