Position file configuration.yaml

I’m not sure where to create the HA configuration.yaml file. I have a system with Debian 13 + Docker Compose installed, and the Docker config file points to
imhome
So, should I create the file in the path HOME/MYUSER/HOMEASSISTANT/CONFIG? Or do the colons at the end of /HOMEASSISTANT have any meaning?
Thank you

You should create it where docker expects it.
HOME/MYUSER/HOMEASSISTANT/CONFIG

The colon is specific to the docker command and separates the volume from the path where the file or directory is mounted in the container.