My current keyboard layout for X220

layout.txt

HARDWARE = r'''
ESC  F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12
     ` 1   2   3   4   5   6   7   8   9   0   -   =  YEN BS
   TAB   Q   W   E   R   T   Y   U   I   O   P   [   ]
C_LOCK    A   S   D   F   G   H   J   K   L   ;   '   \  RET
LSHIFT      Z   X   C   V   B   N   M   ,   .   /  RO RSHIFT
LCTRL   FN WIN ALT XX1    SPACE  XX2 XX3 RA CP RCTRL BACK
'''

COLEMAK = r'''
ESC  F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12
     ` 1   2   3   4   5   #   6   7   8   9   0   -   #  #
   TAB   Q   W   F   P   G   #   J   L   U   Y   ;   \
CTRLESC   A   R   S   T   D   #   H   N   E   I   O   '   #
        Z   X   C   V   B   #   #   K   M   ,   .   /  RSHIFT
#       =  WIN ALT BS LANG/LEAD  ENT SPS  #   #   [   ]
'''

# CTRLESC = Control when held, Esc when pressed solo
# SPS = Shift when held, Space when pressed solo
# # = disabled. I don't use quite a lot of keys.