Multiple Discourse Forums on the same server
At the OERu we have two separate instances of market category leading Discourse Forum: one for OER partner and contributor collaborators and the other for learners. These days, online forums are seen as a bit old-school: fuddy-duddy. From my point of view, however, Discourse is "Forum-NG" (a Next Generation forum).
Installing Mautic with PHP7-FPM on Docker, Nginx, and MariaDB on Ubuntu 16.04
Mautic is an open source marketing automation web application.
Installing Rocket.Chat with Docker on Ubuntu Linux 14.04
Rocket.Chat is a modern, open source messaging application which is functionally similar to a popular (and heavily marketed) proprietary tool called Slack.
Installing Wekan with Docker on Ubuntu Linux 14.04
Wekan is an excellent, easy-to-use "kanban board" project management support tool, suitable for all manner of projects. For those who have used the highly marketed Trello kanban service, Wekan is functionally similar open source alternative that organisations can host and control for themselves. They can also enhance it in whatever ways they are moved to do so. We encourage our partner institutions to consider this path as a way of reducing costs as well as increasing freedom and privacy.