You can use NanoDroid as a Magisk Module for GApps. https://forum.xda-developers.com/apps/magisk/module-nanomod-5-0-20170405-microg-t3584928
how can i do that? i mean.. can i flash right after the rom? or later?
plus.. do i have to do an other work to do as it is said to be a module for magisk?