Most decent controllers have USB Midi (And sometimes audio) these days, so if you get a 2 in 1 Laptop with vArranger software, (You can also choose what sound software you want if the on-board system is not suitable) then it’s just 1 cable and whatever audio system you are using to get things up and running.

Most hardware/software these days come with templates, (Usually accessed via a wizard) so you just select a template and press a couple of keys on the controller to set things up, which means it is relatively straight forward. (Unlike the old days)

Bill