新NEXUS6四台目来たのでvelo9.0入れてみた
当初N6F27M W56最初から入った

TWRP
twrp-3.2.3-0-shamu.img
Google Nexus 6 Velocity 9.0
https://androidfilehost.com/?w=files&;flid=281780

[GAPPS][9.0][ARM][ARM64] Unofficial OpenGApps builds for Android Pie
https://opengapps.org/
https://forum.xda-developers.com/android/development/gapps-unofficial-opengapps-builds-t3828141

[2018.9.1] Magisk v17.1 - Root & Universal Systemless Interface [Android 5.0+]
https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445

ANDROID9.0化したあと
いきなりパスワード要求してくる
"To start android, enter your password"
ので下記で解決
To solve this problem, please format data under the wipe section in TWRP. I repeat format data not wipe data. This, I think, usually occurs when we flash custom os
https://www.youtube.com/watch?v=GGMcoRNduUs
無事起動PIE