Pithos - pithos is a daemon which provides an S3-compatible frontend for storing files in a Cassandra cluster.
Flickr - image and video hosting website
Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Keybase Chat - End-to-end encrypted chat built into Keybase
PhotoPrism.app - PhotoPrism® is an AI-Powered Photos App for the Decentralized Web. It makes use of the latest technologies to tag and find pictures automatically without getting in your way. You can run it at home, on a private server, or in the cloud.