@A.Altenhoff at the moment only “integration” is the easier installation through the packages provided. apart from that you can configure the intranet plugin to have a visual integration into DeskApp. But we have a ton of other integration ideas that we’ll implement one after the other.
if you’re eager to start, you can of course take any of the supported distros and follow the manual to set Mattermost up for you. The benefit for the Univention integration will be that you don’t have to take care of the mysql and ldap setup youself.