Hmmm that build report looks vaguely familiar....
@snowwis if you look at the build doc for the Muffin you'll see all the different variants you can build off this single board.
The variants all sound a little different and come from different era's of the Big Muff Pi.
If you're not sure where to start (like I was) I'd recommend building the "Triangle". It's what I would consider a "baseline" Big Muff sound and it's probably still my favorite of all the Muffins I've built.
As mentioned the "Green Russian" variant is also very popular as is the "Ram's Head". (Closest variant in the build doc is probably the "Stomp 75 to the Rams Head).
You'll notice the different components in each variant. The board silk screen allows for you to build these different variants, some call for electrolytic caps in the same spot where others call for film. Thus you have the funny looking "multi-purpose" capacitor pads. Can be a bit confusing first. But if you just remember that e-caps need to be oriented by polarity and box or film caps don't, you'll be fine.