Communication around the lab is done via a Slack channel, which is connected to Matrix.
https://slack.com/help/articles/201402297-Create-a-channel
https://matrix-appservice-slack.readthedocs.io/en/latest/link_channels/
https://help.miro.com/hc/en-us/articles/360017572494-Slack-App
Integrate Slack GitHub app into the #devel channel on Slack. See: https://slack.github.com/