-`--expose 80:8000` maps the Host OS port 80 to the container port 80
-`--volume ./downloads:/usr/src/app/data/downloads` maps the downloads folder of the current directory to the container folder `downloads` (where you could set the program to download to)
-`chibicitiberiu/ytsm:latest` tells Docker which image to run the container with (in this case, the latest version)
**Note:** Replace `./downloads` in the command to where you want the downloads folder to be mapped to on the Host OS. Ex: `/path/to/host/download/folder:/path/to/container/download/folder`