Revert "LocalFSResponse is no longer needed"

This reverts commit ee5bf7e8936c2d5e216347449ed0862de43f9675.
Revert "We apparently don't need this hack"

This reverts commit 1e9a064b3ab3294727688558c8655d5708d5b3dc.
Revert "Revert "LocalFSResponse is no longer needed""

This reverts commit a19fdcba8119eca926c896ddb8b51ee24ee265da.