Community Guide: Setting up devpod with podman

The source for
mcr.microsoft.com/devcontainers/python:3.12
is
images/src/python at main · devcontainers/images · GitHub

I see dev-3.12 in https://mcr.microsoft.com/v2/devcontainers/python/tags/list .
I am not sure what makes a git repository appropriate for use as a devcontainer image other than the presence of a .devcontainer.json file.
I am not sure if the “registry.fedoraproject.org/fedora-toolbox:40” is suitable as a devcontainer or if it is just unsuitable for devpod.

Here are some possibilities: