@lambdakb
4 boards publicly available on BoardRepo.
Public boards
trackball-lt7dk
LT7DK PMW3360 Trackball Development Kit
schematicpcbbomRP2040switchregulatorresistor
keyboard-lk7d
LK7D 7 Keys RGB Macropad
schematicpcbbomRP2040switchcapacitordiode
trackball-lt6c
LT6C 6 Keys Trackball
schematicpcbbomRP2040switchregulatorresistor
keyboard-lk16c
LK16C 4x4 Daisy-Chainable Keyboard PCB
schematicpcbbomRP2040switchdiodeconnector