Please note that installing iOS 9 on an Android device is not officially supported and may void your device's warranty. Additionally, be cautious when downloading files from unverified sources, as they may contain malware or viruses. Proceed at your own risk.

because Apple's operating system is closed-source and strictly designed for proprietary iPhone hardware

Your Android will look and operate 85% like an iPhone running iOS 9. No bootloaders, no signed ZIPs, no malware risk.