This program is a tool for downloading and installing mods for Cyberpunk 2077. You can find here all the files needed for the game, as well as all other needed files, like the English localization and other stuff, making editing games easier.

This tool has the advantage that it does not need any extra files from the game, so it is much faster than downloading everything from the internet. 
The main thing is that it is free.

The application is not an official mod for Cyberpunk 2077.