Some may or may not realise you can run 2 instances of djay Pro.app
to effectively give you 8 decks…
the caveat is you need to have separate controllers & simultaneously disable the primary device mapping on the 2nd instance when it is up and running
dont know if people see any value in having 8tracks linked and sync’d…
but its certainly doable on a m1 mac mini
i like to experiment with apps to see whats possible
edit: another caveat is the 2nd learned midi controller “must” have all different cc/note values to those on the 1st controller… as the midi is not internally filtered… something to be aware of