I see. But is there a way to clean up the filesystem? This is a very common use case.
If build execution changes over time and the generated static artefacts change as well (i.e. node_modules on different places) the result would be a file system which is completely cluttered up. So you would have to clean up manually which is not really satisfying.
Other products solve this issues with an option "clean-up node after/before build" because often you only need some specific artefacts of your build (the rest comes from the repo).
Probably another feature request? Sorry for off-topic at this point.
BTW: the product itself is really amazing.