Was this feature impossible to implement many years ago?

The scientist gave our newspaper a detailed commentary: “Meow, meow, meow”

There are many closed source applications that have been removed from the Google Play catalog for various reasons.

Often this reason is the cessation of further development and maintenance of the application.

Why don't these people make the code open to everyone if they don't need it anymore?

This could bring great benefits to all people, but everything that was once created simply disappears.

Recently, the Prav app was released in F-droid. In this application, registration is by phone number.

What do you think about this?

In the backstage videos of music videos, you can see that camera operators are filming with small video cameras.

In the backstage scenes of TV shows, you can see that cameramen are filming with large cameras that they carry on their shoulder (or mounted on a tripod).

Comparing the quality of music videos and recordings of various shows posted on YouTube by TV channels, I do not find any difference.

It seems that small video cameras shoot just as well as large video cameras.

What is the difference?

I use Apk Editor Pro for Android to remove trackers. This application works with a Manifest file, but trackers are not always located in this file. I don’t know what other files may contain trackers, how can I edit them and compile the application on my phone.

Perhaps you have some ideas?