Thinking this is likely a readthedocs bug, but perhaps it is some configuration issue. Seems that the search on https://docs.haskellstack.org/en/stable/README/ doesn't work. If I input keywords that are definitely used, like stack, I get no results - https://readthedocs.org/search/?q=stack&check_keywords=yes&area=default&project=stack&version=stable&type=file
Pinging @borsboom