Hello,

you could expand this mod to like a good and evil god...

The good god rewards, the bad evil punish....

The good god gives you some science packs (maybe the one which least production or amount available)
the bad one gives you some beatings

Also as extension, one can use a shrine (a requester chest or such) for the tributes.
It could be hidden somewhere so you need to find it....

when you request not only landfills, maybe some other intermediates , or maybe mutiple gods which needs to be satisfied....

That could be a nice resource sink as i feel its expandable in every direction easily as you seems to have the method working.

This mod primarily was meant to give a stone sink, especially in dangOreus games where one might have an extreme excess of stone, but there were readily available uses of other resources like coal->oil.

If you'd like to expand on the concept, feel free to modify it and publish it.