Yeah the data is static, just some preset movements e.g. six 'set-piece' movements that the automaton does e.g. 'surprised reaction', 'thoughtful pose' etc.
When the final Arduino is running, it will not be tethered to a PC so maybe just having it included in the program is best.
Also iteration time in this case is my own iteration time in the larger workflow e.g. how long it will take me to generate a new curve, test and iterate.