To secure Transmission and Jackett traffic with a VPN you must use the separate docker-compose.transmission-vpn.yml file and populate the .env with your
VPN provider's details.
The documentation for supported providers and additional configuration can be found at: docker-transmission-openvpn.
All docker-compose commands must specify the docker-compose.transmission-vpn.yml file explicitly.
For example, to bring up all the services, you'd run:
docker-compose -f docker-compose.transmission-vpn.yml up -d
NOTE: You must also define the jackett host described in Part 2 as transmission vs jackett since the transmission service is also the VPN.