Just finished the changes to the PCB design base on what I discovered with the first version.

1. I've change the ESD chips for a little bit bigger ones with a pin pitch of 0.5 mm instead of 0.4 mm. Not a big change but should be less likely to short. The cut-off frequency of the low pass filter is 100 MHz rather than 200. The ESP32 SD card goes at 40MHz so that should be ok.
2. I fixed the LDOs footprint.
3. D3 now use a SOD-523 package.
4. I fixed the TX/RX UART inversion.
5. Added pin label on silkscreen for headers.
6. Added label for switches on silkscreen.
7. Added copyright, license and website info under the board.

While doing the update, I also updated the hardware license to CERN-OHL-P (Apache 2.0 didn't make sense for HW).

I ordered a new batch of proto from PCBWay.

I will now complete the work on the passthrough and level shifter cable boards.