The OSAv2 is the second version of the OSA and a complete overhaul in design.
Make example for this keyboard (after setting up your build environment):
make viktus/osav2:default
Flashing example for this keyboard:
make viktus/osav2:default:flash
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.
Enter the bootloader in 3 ways:
QK_BOOT
if it is available