For example, I came across How to install Haskell cabal tool for Haskell... while looking at the reopen review queue:
I don't have links to others off the top of my head, but I've seen quite a few questions like these and sometimes they are closed as being off topic, sometimes not. I understand that SO has changed over the past few years, but if I recall correctly this inconsistency is true for questions that are current.
So are questions regarding the usage/installation of development tools off-topic or on-topic?