htr-tech/termux-login ? reverse-engineered prompt

Build me a simple Termux login script that protects the app with a password when it opens. I want an easy install script that I can run from inside Termux, then it should guide me through setting a username, password, and a recovery key. If the user enters the wrong password, it should keep them out until they get it right, and there should be a way to recover access with the recovery key.

Keep it lightweight and made for Termux, with clear instructions that are easy to follow. If you need to check current Termux behavior or docs online, go ahead and do that. Also include the little typing animation or fake terminal style prompt if that fits, since I want it to feel polished. Make sure the install and setup work cleanly, and if there are any bugs or rough edges, fix them so the whole thing feels reliable and ready to use.