Hi Rob
AFAIK, an in place is planned for a coming 8.1, maybe even earlier.
from here:
At the moment you would need another server to migrate (If you’re not using AD).
With AD, that may make things a little difficult, but still possible.
Any Apps you have running at the moment on NS7 CAN run in some form under NS8.
But NS7 can still run alongside NS8 and benefit from the Account Provider on NS8 - to continue hosting your NS7 installed apps, until they are ready for migration.
Diaspora, as an example, can run in one or several (Docker) Containers, managed by NS8.
This is just one of several possible answers, and possible “motivators” to keep current and watch, migrate, implement, document, whatever!
As part of our long term community building efforts - and from one NethServer Forum Ambassador to another!
My 2 cents
Andy