ueberzug is a command line util which allows to display images in combination with X11. The user is expected to have knowledge of theoretical computer science. https://github.com/seebye/ueberzug/wiki/Troubleshooting/119e30f331799b30fb9594db29740685cb09425b
Why do you think that https://github.com/AlexAegis/dotfiles is a good alternative to ueberzug