Debian Bullseye Add Backports Repo Guide

Installing Packages

4. 4. Installing Backports Packages

   Finally, to Install Backports Software on Debian 11
   (The Backports are All Disabled by Default, so you have to Use a Flag to Enable the Repo.)
   To Search use:

   apt-get -t bullseye-backports search [KEYWORD]

   And to Install:

   apt-get -t bullseye-backports install [PACKAGE]