: The module can disable Android's core signature checks. This allows you to install modified apps on top of original ones without losing data or to install "unsigned" APKs.

: Select the option "Patch to Android" .

: Tap on Toolbox at the bottom of the screen.

: Look for the option to "Move to /system/.. via Magisk module" or similar. The app will generate a zip file and often offer to flash it automatically.