Alright, listen up, I’m not just any mod—I’m the grand finale, the last one to load
Mods introducing new content into the game.
Transportation of the player, be it vehicles or teleporters.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Trains are great, but what if they could do even more?
New ways to deal with enemies, be it attack or defense.
Armors or armor equipment.
Changes to enemies or entirely new enemies to deal with.
Map generation and terrain modification.
New Ores and resources as well as machines.
Things related to oil and other fluids.
Related to roboports and logistic robots.
Entities which interact with the circuit network.
Furnaces, assembling machines, production chains.
Changes to power production and distribution.
More than just chests.
Change blueprint behavior.
Title says it all
The mod name is a bunch of z's, so I think it's literally just the last one to show up when the game starts and that's the entire point.
To actually be the last one, it also needs to optionally depend on other mods, like https://mods.factorio.com/mod/zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz does. Also looks like it has more z's in its name too.