Please consider /e/ for note 9 US edition and Exynos edition (International)
Regain your privacy! Adopt /e/ the unGoogled mobile OS and online services
If you are referring to this one, there is already an unofficial build.
https://wiki.lineageos.org/devices/crownlte
Do these work for SM-N960U? (Pretty sure thats the American variant of the Note 9) as I am looking to move away from Google centric Android.