The quarry is incredibly slow and has no thrall slot. Would it be possible to perhaps double the generation rate (which would still be rather slow) and/or add the ability to put a thrall in it?

Edit: By "incredibly slow" I mean I left it for almost 24 hours and got a total of 2,000 limestone generated. I get that it's basically a free resource generator and you don't want it to be OP but that's ridiculous.