The-alpha-store/GreyClient ? reverse-engineered prompt

Build me a Termux based Android recovery toolkit that works from a phone or tablet with USB OTG. I want a simple menu driven shell tool that helps me install ADB and fastboot, check that the device is connected properly, and then flash common partitions like boot, recovery, vbmeta, and stock ROM files. It should also handle A B devices, GSI flashing, reboot and sideload options, USB troubleshooting, and a read only MediaTek mode detector. Make it log every flash or wipe action locally so I can review what happened later, and add clear safety confirmations before anything destructive runs. If it helps, look up current Termux API and fastboot docs online while you build it. Keep the interface friendly and easy to use, since this is meant for real world phone repair on Android.