The JC65 PCB actually has two revisions: A QMK native version, and a PS2AVRGB version. Jchan offered both PCBs as options during the M65-A Round 1 group buy, and were also available choices for the 65% acrylic case group buy.
Please note that there have been issues with QMK and PS2AVRGB boards. Random shutdowns and overheating have been reported. As of now, the cause has not been discovered.
See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.