No official checkra1n support, no problem! The ra1nstorm helper prepares an environment adequate for running checkra1n and exploiting your iOS device in a macOS virtual machine. ra1nstorm downloads ...
Use the stock iOS 17.x restore ramdisk as the base. Building from scratch is impractical (missing Apple launchd, ASN1 plumbing, IOKit drivers). palera1n's ramdisk is too entangled with its jailbreak ...