The best way to communicate with the Redox team is on Matrix Chat. You can join the Redox Space and see the rooms that are available. The Redox Support Room is the best place to get help with building, installing and running Redox. Redox OS/Dev is for those that wish to contribute to Redox, or who want deeper technical assistance with developing on Redox. There is also Redox OS/General for general discussions about our use of Matrix and other less-technical topics.
Until recently, we have been using a Mattermost chat server, which we are currently maintaining for historical purposes. Contact us on Redox OS/General if you need access to the Mattermost server.