Added a USB C port to design. Works with these 12V USB-C PD Modules:
https://www.amazon.com/gp/product/B0953G14Q2/
Simply wire the USB-C board to the + and - Terminals. It also may help to file down the front of the PCB under the USB-C port so that the port sticks out farther when the PCB is pressed up against the back of the PSU.
The author remixed this model.