This is not a custom content mod but it aims to make vanilla expensive mode changes to be applied to normal mode, and available as a mod in portal.

It is a temporary solution to the intended changes here: https://forums.factorio.com/viewtopic.php?f=6&t=104026

if those changes never happen (removal of expensive mode of vanilla) then this mod is not necessary but if they shall then mods depending on expensive mode (some of my mods) shall be broken. so this mod shall try to bridge the gap and make a smooth transition if the change hits.

No additional change is intended compared to vanilla expensive mode. if there is, then it is a bug.