Huh. Turns out it wasn't as hard as I thought it would be to re-layout the first DoM book to 8½"x11" (US Letter) instead of 8"x10½" (US Government Letter?). So, I've got a layout that might work for print-on-demand shops that don't take custom book sizes.

I also went over the commentary to rework some of it, so there's also that. It's technically a second edition now, so I'll replace the PDF version on the website soon enough. More on a new physical book edition later.