In the early days of custom ROMs like CyanogenMod 9 or AOKP, developers could not include Google proprietary apps (like the Play Store, Gmail, or Maps) directly in the ROM due to licensing issues. Users had to "flash" these GApps packages separately to gain access to Google services. Key Details of This Version April 29, 2012.

Historically, this package was installed via a (like ClockworkMod or TWRP) following these steps: Transfer the zip file to the device's SD card. Reboot the device into Recovery Mode.

Because this package is from 2012, many of the apps within it (including the Play Store) may no longer function or connect to modern Google servers without significant manual updates or workarounds.

, after which the device would "optimize applications" and the Play Store would appear. Where to Find It Today