Keep in mind…

• DO NOT flash the wrong build of YAAP. Check whether your phone is Pixel 7 (panther) or Pixel 7 Pro (cheetah), the builds are not the same for both phones.
• DO NOT USE any other recovery than YAAP recovery which is included.
• Use the RESPECTIVE recovery for RESPECTIVE builds. (e.g if you want to flash vanilla build, use vanilla recovery, if you want to flash gapps build, flash gapps recovery)
• You MUST format data with given YAAP recovery.
• YOU MUST CLEAN FLASH if you are coming from any other ROM or stock.
• Formatting with YAAP Recovery (yes, I mean YAAP Recovery ONLY) is MUST during clean flash.
• Do NOT try to flash gapps on vanilla build, it WILL NOT work!
• Do NOT try to flash anything other than the ROM in recovery, it WILL NOT work!

For first-timers:

• Download ROM zip and vendor_boot.img.
• Boot to bootloader.
• Run fastboot flash vendor_boot vendor_boot.img
• Run fastboot reboot recovery
• Format data with the recovery.
• Click apply for update.
• Run adb sideload YAAP*.zip
• Reboot to system.
  
  

For dirty-flashers:

• Download ROM zip.
• Boot to recovery.
• Click apply for update.
• Run adb sideload YAAP*.zip
• Reboot to system.
  
  

For OTA-flashers:

• Boot back to system.
• Go to Settings->System->YAAP Updater.
• Click Download.
• Be very patient after this step as OTA is a slow process and will take a while.
• Reboot after it is done.