Scene member masterzorag has showcased Kodi and Steam running on PS4, via a Fedora Linux distribution.
Since PS4 firmwares 4.05 and 4.55 have been hacked, significant progress has been made on its Linux port, in particular with support for PS4 Pro/Slim.
French Site logic sunrise have published detailed tutorials (thanks to Tikilou) on how to install Manjaro Linux on the PS4 , which ships with Steam by default. Masterzorag has also been demonstrating Steam, as well as Kodi, running on PS4 Linux, with a Fedora 28 distribution.
If the video above is any indication, this is not fully usable yet, in particular because sound output seems to be broken.
Running Steam on PS4 was already possible back in the 1.76 days. See our tutorial on how to run steam on you PS4 here, which still probably applies for 4.xx, but you’ll want to get the latest and greatest of all downloads involved.
It might be a bit convoluted to run linux just to manage your video library from your PS4 (lots of people have been waiting for PS4 native solutions such as multiman instead), and there’s still a long way to transform our hacked PS4s into reasonable media centers, but it’s great to see progress.