Sony actively monitors forums and repos for distribution of FPKG (Fake Package) tools. In 2021, they won a lawsuit against the creators of "PS4 Liberté" which included tools for repackaging PS3 assets. The risk is real.
The PlayStation 3 was built around the . It was a beast of a processor—complex, difficult to program for, and fundamentally different from the x86 architecture found in modern PCs and the PlayStation 4. ps3 to ps4 pkg converter