This mod adds a button that will put a landfill tile under every entity if you have a blueprint in hand. Very useful for complex reactor setups and blueprinting rail.
I've reached @Hadramal about this mod and he said that he can't spare time to work on this bc of his personal issues. As a solution, he added me as a Moderator.
I've published the codebase on GitHub. So your PRs are welcome.
With the new release (v1.1.2) I've applied my fix about the trains and fixed the platforms mod problem.