this is just XMPP and it has been around for years before Slack was even a thing Slack won anyway for the same reasons most centralised, commercial, closed sou

this is just XMPP and it has been around for years before Slack was even a thing Slack won anyway for the same reasons most centralised, commercial, closed sourced products often win: less fragmentation, more marketing, stronger network effects, simpler onboarding for normies, richer integrations, and most importantly, an enterprise sales team that actually showers