This is a simple challenge run mod makes it so that you cannot move items downwards (south).
You must build UP (North) and OUT (East/West).
DOWN.
BAD.

Rails can only be horizontal.
Inserters, belts, pumps, miners, etc cannot face south.
Requester chests disabled for now, pending an ideal fix later which would involve bots not being able to fly south if they are carrying items.

Optional setting so that the player can't move down either. DOWN BAD.
[REDACTED] is watching....

Compatible with Vanilla and Space Age. Multi-surface support.
Should work with most other packs as an added challenge.

Inspired by and modified based on LoupAndSnoop's Rubia mod.