As of early May 2022, the PCB is officially QMK ready. Pull request for VIA support was submitted early March and is currently pending. Please load the keymap file (.JSON) for VIA keymapping until official support is approved.
The first batch of Kay65 (Rev. 1) does not support the use of a daughterboard via JST cable, despite a JST header footprint being present. This is due to a miscommunication with our factory. Please only use this PCB for boards with on-board USB connectors (Mini-USB and Type-C).