I already know it's compiled code and it might be difficult to understand since I'm not a dev, but I need to try. How would I decompile it so that I can open it Notepadd++?
You can decompile disassemble (correction by C0C0 lol) it through IDA Pro, or even hook into it lol! (hook into a process that is hooking into another process lol), but it would be pretty hard to edit it through IDA Pro, if you've never done something like that. I recommend just making your own dylib.
IDA Pro, that's for Windows right? And I've never done anything in C or C++ so I can really make my own dylib lol I do, however, work a lot with JavaScript and HTML so I might just able to take a look at the code and sorta piece together what each line does.
It won't look like html, js or even C at all. You will get ARM assembly. But the demo version of IDA Pro works just fine, so you can download it and see for yourself.