I'm having trouble figuring out what's wrong with my files for compiling. the initial errors are pointing to the .h and corresponding part in the keymap.c files but it seems fine to me? i haven't even managed to get to figuring out the joystick part which is where i thought i would start having a bunch of trouble
Does your keyboard have asymmetric halves? The left having 7 columns and the right having 6? As the other commenter pointed out you have defined 6 columns but your layout macro in eiris.h has 7 elements for the left hand. I think the way to solve it is to define it as 7 columns, add NO_PIN to the end of MATRIX_COL_PINS_RIGHT and then just add XXX to the end of all the rows for the right half in your layout macro in eiris.h.