Would be great if it would be like Truenas, you just export your config and during (or after) installation you just reload this config and it's all back and configured to how it was before. Maybe even give an advanced tab where you can select which categories/settings/apps you want to restore and which not.
This backup could even be done automagically upon a settings change and keep a couple of versions, and be stored on one of the pools and Hexos might be looking for it during or after the setup and give you a choice of which version (automatic or manual backup and from which date/time) to use.
Pool import is already working now, you don't have to create a new pool anymore during the setup, you import them afterwards.