This mod makes recipes using stacked ingredients to produce stacked output. The reason for this mod is I have found some mod packs can end up with major speed boost that even loaders are unable to provide the resources fast enough
You can't select the stacked version of the rocket parts in the silo as it has a fixed recipe. Also maybe add stacked space science as the stacked satellite rocket launch product if https://mods.factorio.com/mod/DeadlockStackingForVanilla is enabled but maybe that belongs in the other mod idk.
The stacked rocket parts (rocket fuel / LDS / RCU) allow for a robot to move them around the base fast, then get de-stacked before being put into a silo.