Has anyone set up GHC to run on a server with modules created, saved, edited, imported, and executed via a web interface? Are there tools existing or under development that support some or all of this scenario? I'm working on a new implementation, "Pajama", of the Pan functional image synthesis DSEL, this time with the compiler targetting Java applets. (The image compiler is implemented in Haskell and generates Java code.) Besides running image effects, I'd also like to allow people to author new effects without having any software installed (GHC, the Pajama compiler, or the Java compiler). For starters, I'm thinking of an editor applet (running in a web page) and a compile server. Ideally, the editor would do syntax coloring and checking, show type annotations, etc, though it doesn't have to do so initially. When a module compiles successfully, the user would select definitions that would get run to generate Java code, which would then be compiled on the server and downloaded to the client via an html applet tag. Thanks, - Conal