Haskell offers unreasonably featureful tooling like hoogle and codex but at the same time lacks basic editor integrations even in emacs which is supposed to be

Haskell offers unreasonably featureful tooling like hoogle and codex but at the same time lacks basic editor integrations even in emacs which is supposed to be the premiere editor. Getting a good setup is something I can't do twice. What fork of ghcimod do I need this week and how many CPUs will she be pegging?