Well, I got the boards early, and then discovered that I'd made them too tall and they wouldn't fit.

But after having pulled a meter apart, I can at least test the board and my code before ordering new (shorter) ones.
I am a bit sad about having to get rid of the really nice routing of my first board. I had the autorouter re-do those traces so it is no longer as beautiful.
Perhaps on the next spin I will add 3.3V->5V level converter/buffers so I can also fake keypresses.