Connects outer planets together.
Mods introducing new content into the game.
New places to build more factories.
Transportation of the player, be it vehicles or teleporters.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Map generation and terrain modification.
New Ores and resources as well as machines.
More than just chests.
Can the mod be compatible with https://mods.factorio.com/mod/sa-science-packs? With Outer Rim, the packs look different.
They look different on purpose, the best I can give you is not making all the packs into one set.
Get the other mod to do this work.