...
CNaaS NMS: https://cnaas-nms.readthedocs.io/en/latest/
Jinja2 Templates: https://jinja.palletsprojects.com/en/2.11.x/templates/
...
WireGuard VPN: https://www.wireguard.com/
Git in 5 min video: Youtube (also remember to always use "git pull" before editing files if someone else could have made changes in your repository)
Git branching: https://learngitbranching.js.org/
Docker compose: https://docs.docker.com/compose/compose-file/
...