I worked on researching different elements behind USB-C ports’ pinouts, starting to wire the power parts of it. It made me look into power delivery and handshakes to negotiate different voltage and currents, but it seems that for simple phone charging the default will suffice.
I also learned more about the differential pairs for RX/TX, though I’m not quite sure what I’ll be using that for yet.
I spent some time thinking and making sure I thoroughly understand what goes on with the pull up and pull down resistors for the CC (channel configuration) pins – based on the pull up/ pull down resistors and the voltages, you can tell whether the CC1 of the plug is connected to the CC1 of the socket (unflipped orientation) or the CC2 is.
I verified that the VCONN stuff mentioned on this article does not actually apply to my PCB since the cable length is short.

It seems like I covered everything for the USB research, so next session I can start wiring more!