Hi guys, I was very frustrated, but as usually complaints are useless, Iâll try to be constructive. Maybe the problem is not about Spec itself but all the UI related tool-chain. I find UI very fragile part in software design. And by now Iâve seen only 2 very nice documentations on how to develop UI (with MVC). One was for Ruby on Rails, and another was for iOS applications. Documentation was straightforward: 1) this is how your model, view and controller should look like, 2) this is how they have to talk, 3) other useful cases. Now, there is description about how to do something with Spec, and itâs cool, but for example I always get myself caught in initialisation stuff. Spec intends that I provide some default solution if itâs not initialised with proper data. And I even cannot initialise some variables, because initialisation of superclass initialises widgets and they need default behaviour. I can move to sort of lazy initialisation stuff, but maybe there is some reason in making some calculator example tutorial that will show how mvc apps should be developed in Pharo? Uko