How to ruin your day:

1. Try to turn on your Macbook and find it dead.
2. Send it for replacement.
3. Boot up the good old Macbook from the bottom of the wardrobe.
4. Start the migration assistant
5. Be happy that it found your time machine backup on NAS.
6. Enter the encryption key for the backup
7. Be happy you've done that on a first try as why would they support the password managers or at least the copy/paste...
8. Begin the NW transfer and wait.... WAIT
9. Find out it's deadly slow, do some googling and check whether you still support SMB1 on NAS
10. Shit - you do - so stop the process, disable SMB1 and start over 4-6, because on 7 you get "Mount failed".
11. Try the encryption key again, again and AGAIN, still "mount failed"

12-1024. Restarts, googling, backing out to SMB1, first friend on a phone, second, third... still F...ing "mount failed".

I'm out of reasons, the sparsbundle works, you can mount it, decrypt it, even get some data via time-machine itself, but that bloody migration assistant doesn't ever works correctly again.

#appleshit