●[ROM][OFFICIAL] Bliss ROMS v12.5 - Shamu [Q][4.1.20]
https://forum.xda-developers.com/nexus-6/development/rom-bliss-roms-v11-1-shamu-t3859337
Reboot recovery

Flash OpenGapps--NANO PACKAGE!!

Flash magisk optional

First boot may take up to 10 minutes. This is due to Gapps and root optimization.

・Bliss-v12.5-shamu-UNOFFICIAL-20200401.zip
・twrp-3.4.0-0-shamu.img　
・open_gapps-arm-10.0-nano-20200630.zip　
・Magisk-v20.4.zip　

でNEXUS6 あっさりandroid10に