@frank22: Theorically with a git clone install and installing all the dependencies should be enough. I think minimim. reqs. were Python 3.8 and I think Xformers (but this was included on Kohya installation).
For SDXL should be the same. I'm waiting for them to implement GLORA training (LORA on differente dimensions and actuations ranks) into Kohya to update my installation since should be very soon. GLORA > LORA in terms of aesthetics/quality.