The gophers are https://podman.io/ which builds and runs containers. My guess is they are building the same application in multiple distros for their one application

Like

my-app-nix my-app-fedora my-app-alpine

It’s a common practice so users can choose the distro they prefer when launching your container in their stack.

https://youtu.be/ia8Q51ouA_s

Add on a CI system (not Jenkins) and you got yaml controlling your yaml!

If you have multiple media apps. Say radarr, sonarr. You will thank yourself later if you set up all of those in docker-compose, save the configuration to git, mount the storage to something like /media in the container. That means next time you have to set this up again it will automatically be ready.

I had previous work experience, but setting up containers vs VMs was way faster. The permissions of the media between multiple apps was never messed with which saved me from frustrating issues between applications.