modularized all the things

part one (?)

modules/virtualization/README.md

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+# Virtualization modules
+
+This directory houses all virtualization and container related enablement. Cloud native anyone??
+
+## Hardware virtualization
+
+This is for running virtual machines on the bare metal.
+
+All that's needed to get this working to import the `./hardware.nix` into your machine's configuration.
+
+## Docker (OCI containers)
+
+This is for running the Docker runtime (rootful or rootless, rootful by default) to run OCI containers.
+
+All that's needed to get this working to import the `./docker.nix` into your machine's configuration.
+
+Note: I don't use Docker too much as I use Podman for development. I'd check the Podman documentation.
+
+## Podman/Buildah (OCI containers)
+
+This is for running the Podman runtime (rootless) to run OCI containers.
+
+You will need to import `./podman.nix` into your machine configuration. Additionally, there's some added configuration to suit your needs.
+
+Example:
+
+```nix
+  podman = {
+    podman = {
+      enable = true;
+      extraPackages = with pkgs; [
+        docker-credential-helpers
+        toolbox
+        cosign
+        crane
+        podman-tui
+        podman-desktop
+      ];
+    };
+  };
+```
+
+To get a full, comprehensive list of what you can do with the podman module, please check out (podman.nix)[./podman.nix]!
+
+## Kubernetes
+
+Coming soon!
+
+## LXC/LXD
+
+I don't have anything in the way of a nix configuration for LXC/LXD as I don't have a use-case for them. Come back later!