I started writing the guide, it is over 400 lines with images and I have also been writing step by step how everything works from the ground so that anyone who reads it can kind of understand the different concepts that there are in advanced PCB design.
I then started the schematic and just finished routing the battery charger and also the USB-C port.
I finally finished the schematic and tutorial up to that part. I had to read through the datasheets and wire each component and then update the guide explaining everything in detail. I also added a section explaining STM32CubeMX and how to configure it and get all of the pins set up.
I explained how to add footprints, how to place components on the PCB, and also how to route. I took a lot of images and here's how the board turned out:
