Traefik error with docker-compose

[Lyla-Fischer]

Thank you so much for maintaining this cookiecutter repo! I am currently trying it out to see if it will work for a project, and was hoping to get it set up in local development only. However, it seems like docker-compose wants me to have a load balancer set up on my development machine, which I really do not want to do. Any ideas how I can proceed? I'm happy to do some development work and commit it back to the community, if that's what it takes.

For reference: the error that I'm getting is

ERROR: Invalid interpolation format for "proxy" option in service "services": "${TRAEFIK_PUBLIC_NETWORK?Variable not set}"

[MariaPaypoint]

Set the version of docker compose in docker-compose.yml and docker-compose.override.yml like this (at the top of the files):
version: "3.3"