ndk-samples VS discussions-and-proposals

https://developer.android.com/ndk. Java/Kotlin for the rest.

Best you can do is refer to the official samples and learn by taking one of the samples and modifying it to your use case. The comments in the samples should be quite adequate.

You can compile c++ for android using the NDK.

Mobile has a lot of C++ as libraries but in https://developer.android.com/ndk for android.

Then please provide references that say how to do this. Here https://developer.android.com/ndk it says:

cinterop is only for Kotlin/Native, where the whole application gets compiled to native code. If the target is Android, you want to use Native Development Kit (https://developer.android.com/ndk) instead.

It's a little convoluted since the app does still fork from the zygote with ART in there, but they added an entire layer of APIs so you can jump right in from C++. Here's a sample https://github.com/android/ndk-samples/blob/master/native-ac...

Removing package name from AndroidManifest.xml is required for RN 0.73. Libraries is started to remove it and switched to namespace since RN 0.71. You have 2 options:

React Native: A JavaScript Framework for Building Native Mobile Apps

Before you dive into the various aspects of building a JavaScript web app, it is important to get familiar with the language of the web - JavaScript, or ECMAScript. JavaScript is an incredibly versatile language which you can also use to build web servers, native mobile apps and desktop apps.

there are a whole bunch of complaints here

Using a monorepo is growing in popularity - there is even an open proposal to migrate react-native repository to monorepo. Find out more about React Native monorepo on github.

React Native JSI is a core change in the re-architecture of React Native. This is a layer that offers “synchronous” communication between JavaScript and native code. It will be replacing the default react native bridge. (Source)