But you didn't just write the thing you wanted, you're relying on other software that happens to do it, and if you were happy with the communication bus you would've stuck with that.

Your shoe analogy also breaks down because really the shoe is the issue, not the stone. And expecting everybody to make their own shoes is, well, I mean we just don't do it that way anymore for good reason. Let the cobblers make the shoes, and the runners wear them.