Magisk modules are add-ons that can modify or enhance your Android device's system. These can range from simple theming to performance enhancements. A module typically consists of a .zip file that can be flashed through a custom recovery or directly through Magisk Manager.
To replace a system app systemlessly:
my_module/
└── system/
└── app/
└── MyApp/
└── MyApp.apk
No extra scripts needed – Magisk overlays at boot.
A "repack" usually refers to a modified Magisk module that packages the ADB and Fastboot binaries for Android. This allows a user to open a terminal emulator (or use an automated script) on the phone itself to flash partitions (like boot.img or recovery.img) without needing a computer.
adb shell "su -c 'dd if=/dev/block/by-name/boot of=/sdcard/boot.img'"