I am proud to announce the general availability of Matterhorn, a Haskell text user-interface (TUI) chat client for the MatterMost chat service. Matterhorn provides a terminal-optimized interface to the rich chat features of MatterMost[1], an open-source Slack-inspired chat system. Matterhorn is available in binary release and source form: * Source: https://github.com/matterhorn-chat/matterhorn * Binary: https://github.com/matterhorn-chat/matterhorn/releases * Hackage: https://hackage.haskell.org/package/matterhorn Matterhorn is currently compatible with MatterMost server version 3.8 and is supported on macOS and Linux. Windows support is possible but requires terminal emulation support through either Cygwin or the new Windows Subsystem for Linux. Development of Matterhorn to date has been funded by Galois, Inc. Its primary authors are Jonathan Daugherty, Getty Ritter, and Jason Dagit. Special thanks go to Thomas DuBuisson, Tristan Ravitch, Adam Wick, Nicholas Skinsacos, Eric Mertens, Chris Fahlbusch, and the many brave souls who provided feedback and suggestions. This project would not have been possible without the support of the many fine Haskell libraries we used. This work also included the development of mattermost-api, a Haskell package providing HTTP API bindings to the MatterMost service. The mattermost-api package can be found on GitHub and Hackage: * https://github.com/matterhorn-chat/mattermost-api * http://hackage.haskell.org/package/mattermost-api Additional Resources: * Our blog post: https://galois.com/blog/2017/05/matterhorn-experience-report/ * Learn more about 3rd party tools for MatterMost: https://www.mattermost.org/community-applications/ * Quick Start: https://github.com/matterhorn-chat/matterhorn#quick-start * MatterMost: https://about.mattermost.com/ Enjoy! -- Jonathan Daugherty Software Engineer Galois, Inc.