Mattermost
mattermost.com ↗Open-source team collaboration platform. [![Open-Source Software][OSS Icon]](https://github.com/mattermost/mattermost) ![Freeware][Freeware Icon]
Open-source team collaboration platform. [![Open-Source Software][OSS Icon]](https://github.com/mattermost/mattermost) ![Freeware][Freeware Icon]
This entry links to an external website rather than a GitHub repository, so there's no README to display here.