Is the proximity constraint a hard constraint , or did you do some sort of probabilistic weighting distance , or  ?
We  we didn't
Right now it 's a kluge.
No. We  w OK. We  it 's straightforward to actually just have a  a penalty that doesn't completely disallows it but discourages it. But , um , we just didn't have time to play with , you know , tuning yet another  yet another parameter.