Mattermost CEO here, Thanks for the mention. Increasingly we see mention of "Slack or Mattermost" as part of DevOps stacks. In my mind, the space is growing qu

Mattermost CEO here, Thanks for the mention. Increasingly we see mention of "Slack or Mattermost" as part of DevOps stacks. In my mind, the space is growing quickly and there's room for multiple winners. I'm excited about having more and more functionality people love available in an open source alternative.