I have two primary methods. With both methods, probably 90% of the actual mixing happens inside the machines themselves, with only machine-relative mixing on the console faders.
One, I have a self-contained rig for live performance with all machines into a small mixer, and I’ll just record an entire track from that mixer’s L-R outs.
Two, I’ll connect machines and FX to DI+mic pre’s and into the studio console, and record the L+R outs.
On occasions when I’m adding a hardware synth track to a DAW work in progress, I track the machine only as much as necessary, just a few bars or parts that will be copy/pasted. For those scenarios, I’d really like to get an Innerclock rig…without that, it’s a PITA.