This PCB is not QMK ready by default. If you want to use your Leeku Finger65 PCB with QMK, you must ISP Flash the Leeku PCB using the bootloader for the atmega32a that resides in the util/ folder.
Make example for this keyboard (after setting up your build environment):
make leeku/finger65:default
Flashing example for this keyboard:
make leeku/finger65:default:flash
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.