smOS wouldn't work for me, I'm running all nVidia ATM - I do have 10 RX 470's I yanked that are just in a drawer now but I don't see them being used because I just keep filling empty outlets with more nVidia's as they become available.
I think SRR works independently of OS because it works on linux and windows too.
I believe Tytanick's mentioning about linux SOCAT package to be installed in Linux so that it can facilitate "I am alive" pings to SRR.
I guess if your NVIDIA linux build has SOCAT package installed it may work.
I am just speculating
What are the best tools to monitor a mini farm setup / ensure you have max uptime
What are you currently utilizing?