Arrow question 🙂 Im busy developing a talk about the arrow framework for a conference, Its going quite well (although finding good examples in researching arrow was kinda hard). And in my research I managed to get refined types working (although I have not been able to get the compile errors to show in intellij? (can anyone help with that?)) but I think I read somewhere that this will be rebuild in december? (in that case I do not want to put it in the talk yet and rather wait for a more stable version)