As it may take some time before everything can be run from a GUI, I wrote a few instructions for anyone wanting to try early PS4 support in GIMX.
Those instructions can be read on the wiki.
It may seem quite complex, but once the pairing is done, starting GIMX is as simple as running a single command in a terminal.
GIMX is only able to run at 100Hz for now, I’ll try to improve this later. I’m currently working on adding touchpad support.