Seald - Keep your conversations secure, everywhere.

Pithos - pithos is a daemon which provides an S3-compatible frontend for storing files in a Cassandra cluster.

Keybase Chat - End-to-end encrypted chat built into Keybase

Hermes - Pandora Client for OS X

Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.

pianobar - “pianobar” is a free/open-source, console-based replacement for ...