0R resistors might cause short circuits
some pins (por_override, detlev sd card) have the possibility to be connected either to power rail or gnd via 0R resistors. As it is now on the schematics, a short-circuit might be created if both are installed by mistake.
Consider replacing one 0R with a pull-up or pull-down resistor (like for fpga programming mode pins) if the pin allows it. Otherwise, if this is only for the prototype, we can use a jumper for the level selection thus reducing the risk of short-circuit.