If that is your intention you can join our NextcloudPi community, because providing sane defaults and guidance is the reason for our team existing. All you must do is install Debian and then run this curl script. The setup wizard will guide you from there; see docs.nextcloudpi.com for further info.
Our tooling will provide you assistance the whole way, including helping you manage your updates and such into the future. You can always ask for assistance here on the forum with the tag ncp or by asking on chat as detailed at Forum, Github or Chat: Which to use when?