It's funny, I took it apart a while back and I don't remember what I found. I only remember the underwhelm.
I just opened it up and took this pic. The switch just connects the blue and black wires coming from J6 and J7 on the pcb. Nothing super obvious to me about what that's actually doing...
It's out of stock but it's probably the biggest diy pedal project that I'm aware of. I do not have the follow through for this kind of thing.
https://www.deadendfx.com/product/pompei
It's funny, I almost typed "low tide" there as it was my first major failure/victorious troubleshooting thread...
I almost always order at least one from every powder drop and usually love yellow boxes. Not sure why but I just wasn't feeling that one so I skipped it. Maybe nightshade kicked too much ass last month, they had to follow it up with something toned down a bit.