IMO for humans to achieve near communism we would need to have superb technology in all areas which usually found in science fiction. Software will be in open source, basic task would be handled by robots but even so it's not close to perfect as greed is still there unless we even resort to make use of technology to alter genetics where all will have similar skin color and build, the way we think and so on. It may sound like those in the movies but we never know.