Haskell
Introduction
Limitations
When using cabal2nix, Nix does not pull a cabal package by respecting the constraint specified in the cabal file. As an example: https://github.com/chrissound/Cabal2NixLimitationExample
Issue is discussed here as well: https://stackoverflow.com/questions/57441156/pulling-in-specific-haskell-packages-cabal-dependencies-with-nix