Open GApps packages are now available for Android 9 Pie devices, and that is something that will make those of you who like ROM-ing really happy. For those of you who do not know, however, it's worth noting that Open GApps are basically packages which come with Google's services, like Play Store, Play Services, and so on. Open GApps packages are easily flashable via a recovery, such as TWRP, for example. So, the release of Open GApps packages for Android 9 Pie basically means that you can get Google services on your Android 9 Pie-based ROM.
ARM, ARM64, x86 and x86_64 Open GApps packages are all available for Android 9 Pie on Open GApps website for you to download. It is worth noting that Open GApps are not the only packages that offer Google's services, but they're quite probably the most popular ones. Now, unlike other packages that offer Google services, Open GApps actually comes in a number of individual variants, so if you don't want some of Google's apps installed on your phone, or you simply don't have any space left on your flash drive, you can always download some other variant of Open GApps with less stuff to install. Do keep in mind that TWRP now supports Android 9 Pie devices as well, so make sure to update TWRP before you flash Android 9 Pie version of Open GApps on your device.
ROM-ing may not be as popular as one was, but a ton of people are still installing third-party ROMs on their Android smartphones, which is why the ROM-ing community is still very active, and the release of Android 9 Pie Open GApps packages will definitely benefit the whole community. If you're looking to install Google services on your device, follow the source link down below and get your Open GApps package.