Do you state in you job ads that it is meteor position? Some self selection of applicants might help - you don't need someone super excited, just someone responsible and willing to do that work. At least, that is how our company found long term people for unpopular positions. Turned out they exists, just are hidden and don't know your job is match.

(I personally don't mind working with less popular tech part of time as long as I also work with something that sounds good in CV.)