pip install vidtoolz

vidtoolz install vidtoolz-intro

usage: vid intro [-h] [-t TEXTFILE] [-i INPUT] [-o OUTPUT] [-cd CHANGE_DIR]
Create intro video from a series of videos
optional arguments:
  -h, --help            show this help message and exit
  -t TEXTFILE, --textfile TEXTFILE
                        Text file containg. IMG102.mov,1,5 IMG200.mov,2,4
  -i INPUT, --input INPUT
                        Input like IMG102.mov,1,5
  -o OUTPUT, --output OUTPUT
                        Output filename, default None
  -cd CHANGE_DIR, --change-dir CHANGE_DIR
                        if Provided, go to this folder

 vid intro -i "small.mp4,1,3" -i "small.mp4,8,10" -cd /tmp

cd vidtoolz-intro
python -m venv venv
source venv/bin/activate

pip install -e '.[test]'

python -m pytest