[Question] Porting to older firmwares

[Kosinus69]

First of all, great job. Been waiting for this for so long.

Any suggested starting points for porting this to older firmwares (say 4.01)?
The way I see it, all one needs to do is add apropriate values to hashmap keys in various places (such as 'setjmp': getGadget('libSceWebKit2', 0x270),).

I have zero exploit/PS4 coding experience but love to get started (am quite familiar with C). What is the easiest way to obtain those offset/addresses for a particular firmware?

[modz2014]

by decrypting the libkernel stuff ect to find gadgets and syscalls which im working on slowly