If you are starting with nothing then maybe a lithophane conversion on the photo
https://3dp.rocks/lithophane/ https://itslitho.com/ https://github.com/muldjord/lithomaker
Just some options. 3dp.rocks works well from my experience. That would at least give you a starting point. I’d see if there is some way you can scale it on the z axis of the features are point straight up to get more depth on what the lithophane provides.
This.
Also containerization in general. Not just docker. This includes podman and LXC (which is probably your best bet if you want a full system in a container)