You should be able to do that, as long as the file is put there. But that would have to be done each time after an upgrade.Great to see this hardened flavour of 11 which can even be used with locked bootloader @optimumpro !
As I understand you will have monthly updates also which is great to keep our phone up to date.
One question though; is it possible to use /data/local/userinit.sh scripts with this rom?
Would be a great option to do some system settings without the need of Magisk or other stuff.
You can share your script, and I may put it in the rom.