I have an existing nextcloud server and I want to extend my infrastructure with email services. I have seen there is a recommendation that MiaB would fit to my plan.
But during the installation of the Mail Server (of course on a separate Linux server), I can see that the MiaB installation does its own nextcloud installation.
Is there an installation guide for installing MiaB without its own nextcloud server, furthermore how to integrate/connect the MiaB server to an existing Nextcloud instance?