Comment by franga2000

How do you go about designing a PCB with this in mind though? At least in KiCad, the requirement to make nets first and layout last makes it so I basically have to do a draft layout in my head, connect the pins in the circuit diagram and then do the final layout.

Do you have a better workflow for this?

I'd love to have something that I can just feed a list of tags for each pin and have it pick the pins and make the layout in the fewest layers and/or with fewest vias possible (the latter would be amazing for making perfboard prototypes). Something like MCU_PIN1={uart1_tx,gpio_out,gpio_in,gpio_in_pullup...}, J2_PIN1={uart1_tx}, ... and then it just...figures it out and gives me pin table that I can use in the code (like a bunch of #defines).