Get Rootless Podman Working

[mirdaki]

It seems like rootless podman is challenging on NixOS. Spent a bit of time on it, and decided to stop and just get things working. May wait to see better Nix support before trying again

References

• https://github.com/containers/podman/blob/main/docs/tutorials/rootless_tutorial.md
• https://wiki.archlinux.org/title/Podman
• virtualisation.oci-containers and running podman as user (rootless) NixOS/nixpkgs#259770