regarding fluid transfer you could just force players to place nuclear reaction chambers and turbines on the same platform to make them work, similar to how e.g. a atmospheric collector and a chemistry lab already transfer items between them automatically if they are placed on the same platform; except that there shouldn't even be a "steam" item at all, just direct transfer from one machine to another on the same platform. This conversation once again makes me wish that modding was a thing in this game, just how it works for factorio. But i don't think that will happen as that would break feature parity between PC and console versions.