[GUIDE] How to use overlay mounts in Android to make /system and other directories writable

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Since Android 10 many file systems in the Android OS are only mounted read-only and can no longer be mounted writable even by the root user. This is safe, but extremely unattractive.One way to circumvent these restrictions is to install Magisk and Magisk modules. Magisk uses bind mounts to change or create files in the read-only file systems. This works very well to create or change binaries in /system/bin, for example. However, when creating the Magisk module you...Read more