AICP is the ROM from Alice Project. This ROM is based on Marshmallow 6.0.1. It is stable for daily use. It includes almost all features of LineageOS. As their are no stable custom ROM for P8 Lite you can try this one. Everything is working in this ROM.
How To Flash/Install
Download the ROM zip file
Place it in SD card
Boot into TWRP. Must have TWRP 3.1 for installing this ROM.
Wipe cache, dalvik/ART cache, wipe data.
Choose install zip from SD card and select ROM file.
After Flashing ROM flash fix/patch for deep sleep.
After this flash gapps
Reboot your device and enjoy.
TO READ COMPLETE FEATURES AND DOWNLOAD THIS ROM CLICK HERE