I suspect the 700MB dependency is Haskell Platform. Which you don't need and is not considered a good way to install Haskell. Just GHC and Cabal (package manage

I suspect the 700MB dependency is Haskell Platform. Which you don't need and is not considered a good way to install Haskell. Just GHC and Cabal (package manager, sort of ) are nowhere near there. Or even better, use Stack. See how large the binaries are.