text/plain; vim %s ;
text/html; $BROWSER '%s' ;
text/html; w3m -I %{charset} -T text/html; copiousoutput;
image/*; ~/.config/mutt/etc/muttimage.sh %s ; copiousoutput
video/*; setsid nohup mpv --quiet %s & disown; copiousoutput
application/pdf; pdftotext '%s' -; copiousoutput;