Linking: .build/ploopyco_trackball_rev1_005_devmed.elf                                     [ERRORS]
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 | /usr/local/opt/avr-binutils/bin/avr-ld: .build/obj_ploopyco_trackball_rev1_005_devmed/keyboards/ploopyco/trackball/keymaps/devmed/keymap.o:/Users/devmed/qmk_firmware/keyboards/ploopyco/trackball/keymaps/devmed/keymap.c:47: multiple definition of `is_drag_scroll'; .build/obj_ploopyco_trackball_rev1_005_devmed/keyboards/ploopyco/trackball/trackball.o:/Users/devmed/qmk_firmware/keyboards/ploopyco/trackball/trackball.c:66: first defined here