It might be a bit broken but we started with throwing items between two buildings, then with fulgora started shooting them between islands so what would be the next step? Introducing, orbital cannons! A cannon that using unreasonable amounts of energy (so it costs more energy but less resources) would YEET the player and maybe some items onto a platform or maybe even between planets.
My idea came from a mod that seems completely broken called orbital cannons but I do believe that with this you could make something similar to the Space Explorations inter planetary logistic cannons but with some flare!
(https://mods.factorio.com/mod/orbital-cannon)
This idea could be the answer to the question "What to do with aquilo in terms of renai transportation?", just abuse it's minerals and make a network of huge railguns that would shoot the lithium and allow a new end game but (possibly) balanced transport alternative to space platform that might or might not sometimes miss and hit your factory which would pretty much be like an artillery strike in the heart of your base (for funsies)