I really appreciate all the info and schematics here. I pretty much followed what Nick did in the first post and very roughly put one together just in time for Jacob Collier tonight, and together with the Sound Professionals attenuator and USB-C adapter, it makes for a decent ultra low profile phone rig. I know that's probably not everyone's use case, but I've found it handy for venues that are a hassle to even get a little Roland into, and this does it. I bought enough to make two and will make another, more neatly constructed one when I'm not pressed for time.
![cheers :cheers:](/Smileys/throwback/cheers.gif)