I guess there may be an official secrets act thing mixed into the contract for that job!
Theory of making it work isn't so different to the way cars these days will run on 95 or 98 octane without you taking it to the dealer to recalibrate.
With fuel injection you just need to write as robust algorithm for your engine management box that will slowly advance the spark until it detects knock (but do that in real time) - and alter the injection moment to account for the differnet burn speeds of the fuel by using the exhaust sensors.
I once ran an 2- stroke Merc 15 on diesel - having been handed the wrong portable tank mid event one Saturday. (Thankfully the displacement tub didn't need refuelld as early as I did!)
It was a challenge to start, but once going it did a good impersonation of a 2Hp (and smoked like a lum) - but it ran!