To my understanding, they mapped all of the CC bindings from their digital mixer into Reaper and then routed the audio through JACK. They had a double monitor setup that seemed to be running a pretty standard Reaper setup (with Bitwig as an optional backup), as well as a smaller integrated monitor in the dashboard of the mixing console (which must have been running a custom UI). They were hooked up to a pretty sizable NAS, and they made a pretty large emphasis on separating project files from the OS. It seemed like the secret to their workflow was weekly backups of the OS partition with redundancy for the mission-critical components. Their round-trip latency was also pretty impressive, with less than 10ms for software sources and 30ms for hardware sources. All of it was running on an older Threadripper workstation.

Just FYI 30ms from hardware sources is terrible, I can achieve under 2.5ms round trip with Dante at 128 buffer settings and the older MADI protocol achieves similar levels.

Right, and under 1ms with HDX.

What am I missing? Those numbers are an order of magnitude higher than I got with a similar Linux studio setup in 2008. We get 30-40ms latency over IP within about 100 miles.