Sure, will do. I was actually looking at that just before I posted.
My initial thought (before seeing your FAQ) was a no-op compile, but you rightly point out that this may not be the best approach due to littering the production code. I will probably go the separate devcards files route and have the production profile exclude these.
Maybe src/ test/ and devcards/ ?
But I'll experiment with it and see what works best for me and let you know.