* calculate BOARD_DIR exactly once
* deduplicate board scripts
* unit tests
* make passes variables to openblt build properly
* was this an intentional omission?
* s
* prometheus
* prometheus
* 429 boots and LEDs work
* oops missed a comma
* enable on f767 too, since it should be the same board
* why not just completely duplicate it
* script should not be fancy
* script should not be fancy
* correct pins
* h743 while we're at it