Hello Me and a fellow student are taking a course named Frontiers of Programming Languages, and in this course we should do a project with something. A while ago we were at a presentation of Feldspar, a Embedded Domain Specific Language, and one of the negative points of using haskell was that the error messages could be cryptic due to the various ways it was implemented. So we are now looking into the possibility of adding your own error messages to GHC as our project. We have about 8 weeks to implement, either all or some proof of concept. As such we are looking for comments, ideas and suggestions. Is this doable in GHC?, or what is needed. Thanks Daniel Gustafsson Simon Edwardsson Chalmers University of Technology (Gothenburg, Sweden)