So I just spent half an hour trying to illustrate a simple counter-example, but for each of the half-dozen apps I have considered I see how it could be organize

So I just spent half an hour trying to illustrate a simple counter-example, but for each of the half-dozen apps I have considered I see how it could be organized into a unified structure differentiating machine/human API by the requested content type. I'm not sure if I would prefer that in practice, but I think I am going to have to try it. The idea of having a single structure for the API is too elegant not to try.