How to get signature substitution?

Question

Android

I want to install MicroG. (alternative to Gapps)
To do this, you need to get a signature substitution.
I have problems with deodexing vdex files on Android-12. You need to deodex the firmware. (without PC)
You can give detailed instructions for installing MicroG, signature substitution and deodex on Android 12.
Thanks to all:)

Answer 1

LXposed - helped without deodex.