Yeah that’s the bit you install, and the .rap is the license. You could use the emu or an actual PS3 assuming you have custom firmware (or hen).

I am more interested in how much content it actually has without a server, how it’d compare to other versions. Looking into it, seems like some LBP1 levels are archived as save data but I also wonder if custom servers could be a thing (uploading too?). EDIT: The answer is yes, I should’ve just looked it up. Beacon.