Check the manual of any application. In this case man neofetch We need to tell neofetch to use the option - -source to load another image or logo. We get our ArcoLinux logo's with the package from the conky's : arcolinux-conky-collection-git. It is installed in...
5 Starting Neofetch automatically in the terminal – any desktop
We add neofetch to the terminal. We want to see to see the technical information Neofetch provides and the logo of Arcolinux. Add neofetch to .bashrc (or .zshrc). W3m and imagemagick need to be installed to have the logo of ArcoLinux in Neofetch