Okay so signing iOS stuff started in iOS 9.
I'm going to wait on iOS 11.1.2 until Saurik releases a solid Cydia Substrate. I don't think "Substitute" is worth it if Saurik himself seems to do things to break it in terms of playing with Cydia.
Okay my cleaned up Questions
1: "it's when you will need to reJB and you are in nonJB mode the JBtool would need resigning" The signing of the JailBreak app needs to be done over a computer, correct? This is possible with PC or can it be done on the iPhone itself as well?
1.1: Can I get a developer account from apple which signs for one year? How much does this cost?
2: Is access to root level /var still possible with AFC (App File Conduit) tweak installed, then using iFunBox, iFile, FileZilla, etc?
I mainly just want to JailBreak my iPhone 7 so I can install RetroArch on it and play PS1 games, as well as PSP games with PPSSPP. Also of course, cuddle my Cake. <3
I mean, I got a 256GB version so I can cram it with all the apps you guys have here. ;d