cmdshow is built on Python and the ffmpeg library, so they need to be installed.
git clone https://github.com/anihm136/cmdshow
cd cmdshow
pipenv install # Installs all the dependencies
python cmdshow.py # Or cmdshow_gui.py
git clone https://github.com/anihm136/cmdshow
cd cmdshow
pip install -r requirements.txt # Installs all the dependencies
python cmdshow.py # Or cmdshow_gui.py