OC PPA to NextCloud

I’ve been using the OC PPAs for a while now and like the way they handle upgrades. I’m looking to migrate to NC because of NC specific features.

I’m looking for a guide to migrate from the OC PPAs to a NC install. Most of the guides assume that you have your OC install not under package management. That adds some difficulty because most of the guides from OC -> NC conversion assume your existing deployment isn’t under package management.

Even better, if someone knows where I can get DEBs for the NextCloud server.