Not radically different. The company that did this work was staffed with engineers who had experience on larger spacecraft. The fundamental algorithms are the s

Not radically different. The company that did this work was staffed with engineers who had experience on larger spacecraft. The fundamental algorithms are the same. The difference is that everything is much smaller - less momentum, so less large reaction wheels, etc. The nice part is that you can use commercial parts, so you get access to much more modern electronics than old rad hard parts.