Just some thoughts on possible future revisions:
- the FP6601's for the QC part could be powered directly from the +5 V rail, saving about 6 passive components.
- I used a 4.7 nF capacitors across the top resistors in the resistive dividers to minimize noise, so maybe add these as a footprint.
- it would be really cool to mount a Power Delivery USB-C on this board.
Anyways, if enough people are interested, I might do a run with machine assembly (the boards are not complicated or expensive, but it's tedious to do it by hand). If you are interested, let me know in the comments.