Does any GUI application follow the Unix philosophy very well? Because the other side of "do one thing and do it well" is that arbitrary tools can be combined,

Does any GUI application follow the Unix philosophy very well? Because the other side of "do one thing and do it well" is that arbitrary tools can be combined, and that tends to break down once you leave the command line. Emacs tries to work with the command line; it can run a terminal inside it, or run commands on a buffer with M-|. And emacsclient --eval can run a Elisp from the terminal. But... > Wanna display text so its easy to interact with Git? Magit. Wanna display text so that its easy to navigate your file system? Dired. That nicely highlights the way Emacs usually interacts: by wrapping existing tools rather clumsily with a lot of Elisp. And it's forced to do this because the other Unix philosophy of "everything is a file" has made it very difficult to evolve beyond the command line. Which is not to say Unix was wrong: the command line is very good at what it does and lots of other schemes following it have crashed and burned because "do one thing and do it well" often conflicts with their more complex notion of "everything is an X".