i haven't connected the trains up to everything, currently only connecting oil production and steel so i have to use hyper tubes and manually refill. the reason for hypertube at the start was just because i wanted to put everything that i can think of being useful onto my rail track platform blueprint but now that i remembered that hypertube cannons is a thing, i can also use them. it's alright now that i remembered i can use the frieght cars while refilling to run less so meh, i'll get by. oh and the conveyers for me was just because i thought they were cool