tytydraco/Ludere ? reverse-engineered prompt

Build me an Android app that packages a game ROM with a LibRetro emulator core so the whole thing works like a single installable APK. I want the app to launch straight into the game, with the core and controls already set up, no extra downloading or importing from the user. It should support saving progress, including one save state slot and saving SRAM when the app loses focus.

Please make it easy to swap in a different ROM and change the basic game configuration, since this is meant to be reused to create multiple packages. If there is a way to automate building these APKs from a folder of ROMs and config files, set that up too. Keep it simple for someone who is not deep into Android development, and make sure the final APK can be shared and installed like a normal app. If you need current docs for the emulator core or libraries, look them up online first.