#include / { chosen { zmk,keymap = &keymap0; }; keymap0: keymap { compatible = "zmk,keymap"; label ="Default keymap"; layers = <&default &lower &raise>; }; layers { compatible = "zmk,layers"; default: layer_0 { label = "Default"; keys = < KC_A KC_B KC_C ZC_CSTM(1) >; }; lower: layer_1 { label = "Lower"; keys = ; }; raise: layer_2 { label = "Raise"; keys = ; }; }; };