[Nexus 7 Android Development] Vrpghm:
I have never used that type of applications without Google, the Android that cell phones use is developed by Google, I think that the custom roms are with operating system modules, investigate with the creators of Anti Google how they solved the android failures, they must have complete replace all internal modules required android for its basic operations that are invisible to users, years ago I found this type of apk without Google, it seemed to me that they were still in beta phase.

by CMD do you use the install command? Or do you just transfer the apk to the tablet's memory?

Since trwp doesn't allow you to install APKs?

I think magisk apk is already installed from trwp... not other apks?

What is that type of apk called without Google?

Have you searched on xda for that type to install without the Google app?

For example, what anti Google apk replaces Google play services?, which is essential to operate Android

There are also apps that replace Google Play Store:

They are open source apk stores

Aurora store apk

Uptodown apk

Do you have the Android download module installed?

I located this on the xatakaAndroid site:

Each manufacturer will put a more or less intensive layer of customization on top, but in the background there is always a version of Android. The applications are limited by versions of the API and not of Android, but for practical purposes this does not influence you since it is already responsible for informing you which version of Android each level of the API is equivalent to. You can find this information in Android Settings, About device. One of the sections should clearly show the Android Version. The only thing that interests you is the Android version, which will be three digits at most. Other more cryptic numbers such as the Baseband version or the Kernel are not relevant.

Architecture

The previous information was very easy, but it is not so easy when we talk about the architecture of the CPU. You could always search the Internet, but it is not something that is usually included in the specifications, but rather you must deduce it from the processor. That is, you need to do another search, a hassle. Although by probability it is most likely that an "old" device is ARM and a modern one is ARM64, it never hurts to make sure. There are several applications that show you this information quickly and easily, such as Droid Hardware Info.

The Nexus 7 tablet's architecture is armeabi-v7a 32bit, instrument sets are armeabi, Thumb-2, VFPv3-D16, Other, optional

After opening the application and granting the necessary permissions (required for camera information), in the System tab you will find the information you are interested in. In the Instruction Sets section you can see the system architecture, which is generally accompanied by the version number. When downloading an APK, the normal thing is that the different variants are named with a simple ARM, ARM64, X86, X86_64, MIPS or MIPS64 while the application will show you the more technical name. Here you have the Google table with the equivalences. Another vital variable of the app is the DPI, I think the Nexus 7 2012 Grouper tablet, DPI 216 or use noDPI that take up more space because they include different DPI to function.