You can connect with the tango-controls community on Matrix here: https://matrix.to/#/#tango-controls:helmholtz.cloud

IIf you haven't used Matrix before and you want to use Matrix through Helmholtz, please request access via invite link . After you request is accepped (you should get notification pre e-mail), you can can use this link to join the group

HZDR login system:

To use HZDR Matrix with embedded Gitlab SSO with your institutional account (as well as GitHub or Google accounts):

Open https://matrix.helmholtz.cloud/#/room/#tango-controls:helmholtz.cloud and click on "Sign in"

Welcome page

Then click on "Continue". 

Login

Find your institution, click on it and then you will be redirected to your institutional login system.