I was very psyched to see this, however, I am afraid to tell you that this is missing parts of the text. It is missing the 'Do This/Source Examples' - a vital part of the text for sure. Replace with fixed copy and report back! Thank you kind sir!

Updated to the latest version of dexy and all appears to be well. The link should now have a working copy.

Very good, thank you!

Hmmm. So it is. Not sure why just yet. I'll give it a shot debugging the Tex. Maybe something in my setup.