Bash one-liners i came up with (may or may not be useful) Most of these commands need to be modified in order for them to be added as aliases.
Autoloads files in mpv (like autoload.lua)
echo `ls` >> list.mpvlist && sed -i 's/ /\n/g' list.mpvlist && mpv --playlist=list.mpvlist & rm list.mpvlist
You could also autoload every picture ever. This doesnt actually work but it stresses your procesor.
ls -R | grep ".jpg\|.webp\|.jpeg\|.png" >> list.mpvlist && sed -i 's/ /\n/g' list.mpvlist && mpv --playlist=list.mpvlist && rm list.mpvlist