@BenUNC #OpenCuts (the system i developed https://www.open-cuts.org/) is somewhat being used at @ubports for the #UbportsInstaller ( https://ubports.open-cuts.org/system/5e9d746c6346e112514cfec7 ), but that's not what I would consider "at scale", just a proof of concept.
I know that @kuleszdl had been working on something similar ( https://www.systemtestportal.org/ ), maybe he knows larger running endeavors?
There definitely is potential to this approach, would be very interesting to see what it can do for WordPress!
