Installer [better] | Package

: Verifying that the downloaded files are authentic and have not been corrupted.

A package installer is a specialized tool designed to automate the installation, upgrading, configuration, and removal of software "packages". Instead of manually downloading binary files, moving them to specific directories, and hunting for missing libraries, a package installer handles these tasks through a simple command or interface. Key functions of a modern package installer include: package installer

Different operating systems and programming languages rely on their own specific installers: Creating a Python package from scratch | by Will Barillon : Verifying that the downloaded files are authentic