ffmpeg – Slideshow from jpg files

Have an command to make slideshow from *.jpg files:

ffmpeg -r 1/3 -f concat -safe 0 -i <(ls -v *.jpg | sed "s|^|file '$PWD/|") -vf "scale="min(1920,iw)":min'(1080,ih)':force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" -c:v libx264 -pix_fmt yuv420p -r 60 -preset slow -crf 14 slideshow.mp4

Need good effects from one jpg to another like morphing or just fade in fade out, not just “one picture 3 sec, next picture 3 sec, etc.”
OpenAI or ChatGPT little bit dummy for this problem, so need human knowledge and intellect 🙂