FlameGApps (discontinued for Nougat) or DeltaGApps (unmaintained).
For users flashing custom ROMs on older or mid-range Android devices, finding and stable Google Apps (GApps) is crucial. Android 7.1.2 Nougat remains a popular lightweight choice for reviving older hardware. Open GApps is the industry standard for this task, offering automated, up-to-date packages. open gapps android 712 verified