Ok, I won't speak out of my bottom, but from the few that I knew, POSIX used to be a minuscule incarnation of this[1]. But I don't think it's 5% of smalltalk live environment:
- file metaphore is limited, object are marginally better
- dynamic language instead of edit/compile/run
- infinitely more humane than C/sed/m4/awk/perl hybrid interactions
[1] There's a unix book about how to see it as an IDE, I do believe that long ago, BSD era, things were smaller, cleaner and better integrated. But I still hold my point
- file metaphore is limited, object are marginally better - dynamic language instead of edit/compile/run - infinitely more humane than C/sed/m4/awk/perl hybrid interactions
[1] There's a unix book about how to see it as an IDE, I do believe that long ago, BSD era, things were smaller, cleaner and better integrated. But I still hold my point