xmodmap


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remove Lock = Caps_Lock
keysym Caps_Lock = Escape

clear Mod1
clear Mod4

keycode 133 = Alt_L
keycode 134 = Alt_R
keycode 64 = Super_L
keycode 108 = Super_R

add Mod1 = Alt_L Alt_R
add Mod4 = Super_L Super_R