Linux Capable published a tutorial about installing Neofetch on Debian 11 Bullseye.
Install Neofetch on Debian 11 Bullseye
Neofetch is a free, open-source command-line system information tool written in bash 3.2+. Neofetch displays system information in a beautiful aesthetic way,
Install Neofetch on Debian 11 Bullseye - LinuxCapable