Using Processing headless

HI,
I’d like to execute processing sketches from RaspberryPI via FadeCandy (https://github.com/scanlime/fadecandy) that uses OPC (Open Pixel Control protocol) to display them to a leds Matrix from Adafruit.
But Processing from CLI always complains about X11 required .
Is it possible ?

As a workaround I’m ok if executing sketches from Python but didn’t found out how