A lot of people commented that what I was talking about was very much what Smalltalk offered in many of their Desktop environments.
I really need to expand more into this and learn more about Pharo. I’ve tested Pharo before a couple of years ago, and while very interesting the transition from prototype to production didn’t seem the most straightforward. I need to give it a deeper try, particularly around the prototyping stage (Although being able to move into production is something that is necessary for me, since it is also another source of rigidness).