A free mod for Fallout 4, by Trainwiz.
It can be used with any world, but it is recommended to use it in a world with a lot of buildings.
If you don't know what it's about, then let's start with the simplest explanation: it gives you unlimited resources to build and develop your settlement. And it's not only about the resources, it also gives you unlimited space to build your settlement, and your resources and space are unlimited.
Now, if you want to know more, let's start with the details.
First, it is recommended to use this mod in a world with a lot of buildings, because the first time you run it, you will be given a message that it is not compatible with your world.
