I started a 2.1 playthrough specifically to teach myself circuit networks. Through brute force, trial and error, and overly complicated set ups I finally made my vision a reality. It was incredibly fun learning how combinators work, with timers and latches and isolating networks.

This design relies on the [long arm stack inserter mod](https://mods.factorio.com/mod/long\_stack\_inserter) as I couldn't get the rail lines and the cargo loading bays to line up right for a regular stack inserter.

Here is the blueprint, but be warned its an absolute mess.

https://factorioprints.com/view/-P4g3oWBS6cGsUtIU-Vj