PS4 Soft Mod with GameLoader

Hey guys.

Sorry Im a newb and dont even own a PS4 yet.

But if I get a used PS4 from someone is it possible to soft mod fairly easily? With that soft mod can you then play backups of games downloaded online (Of course games which I already have physical copies for).

What should I be looking for to ensure it is soft mod capable (Serial number vs firmware version vs Pro vs slim).

Thanks