id like to switch from owncloud to nextcloud, cause hdd crash and new os installation is the chance to change. i got the /var folder from my old system as backup and like to take the old settings to my new installation. which steps do i have to take to ensure that all setting like users and database are on nextcloud? i guess many folders are the same and i read an migration tutorial, but i depends on an existing system with oc, my os has nothing at all at the moment.