THIS ISN'T AN OVERHAUL MOD IT FITS NICELY INTO ANY GAME
Workers union allows you to make stations with workers that can do all kinds of jobs on your command. They can handcraft, mine, carry between chests, supply buildings or collect from them, build ghosts or deconstruct, and supply items to you.
They function similarly to new players. They have their own inventories, can travel around , handcraft without any power or food, and just like new players they don't know what to do, so you need to order them around.
They can be an early-game slow autonomous replacement to bots. Or work in far away spots where you'd need a lot of buildpower or infrastructure (rails, long belts, far away outposts, walls). however they are problematic to scale up and cannot be as convenient as bots, being actual workforce you need to manage.
Grey cup (Red science x30) - Unlocks workers, allowing them to mine ores or clear out areas of trees/rocks, and haul items between chests
Copper cup (Red and green science x75) - Workers get the ability to build ghosts and deconstruct marked targets, as well as repair or bring you items on your request, handcrafting the required items for tasks.
Silver cup (Red and green science x150) - Workers get their final ability - routes. You can select buildings the workers will collect from or refuel/restock with resources, they will make routes onto which they would go regularly to supply/collect. This research also upgrades workers, making them work faster and their inventory bigger.
Gold cup (Red, green, blue x250) - Upgrades workers in their speed and inventory capacity, additionally allows you to put up to 4 workers into every station.
Green cup (Red, green, blue x400) - Upgrades workers in their speed and inventory capacity further, additionally allows you to put up to 5 workers into every station.
Please report any suggestions or bugs in the discussion tab.