Messages: there was a script around for going from N9->Jolla1 might be here or on together.jolla.com, but in the end, maybe it is time for a fresh start
everything installed from openrepos may brick your device during a softwareupgrade, if you use OR make sure to read release-notes carefully, unapply all patches and best do not upgrade for a couple of days after a release if you got no time to recover it in the afternoon.