I am in now way related or a maintainer of this package, I just happened to stumble across it.
Apparently there's someone who's maintaining a package of Haskell bindings for SFML. Interesting to say the least! I haven't looked very much into it myself, let's just say Haskell is not my strongest point *sob*.
Obviously no work has been put into handling the threading and networking parts, because, like the author says, Haskell has better built-in solutions for this.
Have a look! It's available on Github and as a package on Hackage!
Github:
https://github.com/SFML-haskell/SFMLHackage:
https://hackage.haskell.org/package/SFMLThere's enough contact information there should someone want to reach out to the author.