Also using the PS4's hardware itself will net you a rather poor gaming PC anyway. The PS4 uses a netbook class processor with what amounts to something between a Radeon HD 7870 GHz edition and a HD 7950. Even with 8 cores, it's not going to be any more powerful than a Intel Pentium.
2 minutes ago, ARikozuM said:
isn't the PS4 the Sony console that came with a Linux option?
That's the PS3, which they removed the option anyway. Also Sony was very restrictive of the Other OS option anyway. For instance, the other OS couldn't use the GPU because the Hypervisor wouldn't allow it.