Users who have installed using the .DEB file do not have to create a docker compose file, as this is taken care of for you.
However, there are some changes that you may wish to make that require editing the .yml file. For example:
Step 1 - Stop the currently running container
cd /srv/edgevis-encoder/
sudo docker compose -f edgevis-encoder.yml down
Step 2 - Edit the .yml file
sudo nano edgevis-encoder.yml
Make your changes and then to save this file, hit CTRL + O (letter O), then hit enter to confirm the filename.
To exit nano hit CTRL + X.
Step 3 - Reload the container using the new settings
sudo docker compose -f edgevis-encoder.yml up -d