Summary: I've just released ghcid, which interactively shows the errors in your project on each save. I'm please to announce ghcid, which is either "GHCi as a daemon" or "GHC + a bit of an IDE". I've been using it for my development for the last few days, and already find it quite valuable. Unlike other Haskell development tools, ghcid is intended to be incredibly simple. In particular, it doesn't