As usual, an excellent user guide and build guide which will tell you a lot about making electronics for music (or otherwise), go to their web site and download this even if you don’t buy the module, it’s free.
Pretty straightforward build, good 3-4th kit because of some tight soldering.
And it sounds really really good! I tried some non-standard things during the demo and this is a very versatile unit, I’ll be putting this in the main rack.