Model your Satisfactory builds. Set up your machines however you like, adding optional limits to the number of any of those machines and the tool will calculate how the parts will flow and how many of each machine type are getting used.

This does advanced calculations that no other Satisfactory planning tool can do, including figuring out how splitters and mergers will split and merge and even priority splitting. This also supports outposts which allow you to logically group buildings together in sub-sections, allowing unlimited amount of canvas space to work.