Hey man. Thanks for buying. The global dust should just be a prefab you can drag in and the particles should just float about. I usually attach this to my player and keep the simulation space to World. That way I only need 1 prefab which follows the player around
As for the pink textures, that will be because I uses URP to create the pack. I assume you’re using the standard render pipeline? The pink is an unfound shader warning because the URP shaders are missing from your project. Unfortunately in that case you do need to manually set up your materials for the project, or upgrade the project to use URP