This is exactly what checkra1n does. So ZiPhone 3.0 would essentially be checkra1n with a ZiPhone skin – plus baseband unlock and risky NVRAM tweaks.
: Implementation of a modern rootless jailbreak feature that allows users to install package managers (like Sileo or Zebra) without modifying the sealed system partition, ensuring better security and easier OTA (Over-the-Air) updates. Legacy Data Recovery Suite ziphone 3.0 64 bit
ZiPhone 3.0 for 64-bit iOS is a fascinating thought experiment – a blend of 2008’s reckless freedom and 2020s’ technical constraints. It could have existed if Zibri returned, if the community accepted closed-source risks, and if baseband exploits still mattered. This is exactly what checkra1n does