How to move rekordbox 6 database to new computer? (without backup feature)

Unfortunately I had to update my laptop to the new MacOS Big Sur for work, and that means Rekordbox 6 can't launch.

I have my rekordbox library files somewhere on the Mac, and I have a different Mac on an older version of MacOS with the same music files.

How can I move my rekordbox library to the new mac without entering RB and using the backup collection function?