I have a certain friend who will remain nameless. We know each other's wives and kids, and we have had a number of adventures together. At work, he manages a team doing mostly kernel development and optimization work. He has known about the Yocto Project from the beginning, and we occasionally chat about the work.
But since he is a friend, he feels safe to taunt me occasionally, make fun of me a little. All in good fun of course, but one of his consistent jabs about Yocto goes something like this:
"Isn't it just a build system?"