started modifing configuration structure

system/services/podman/default.nix

@@ -0,0 +1,20 @@
+{ config, pkgs, lib, ... }:
+{
+  virtualisation.containers.enable = true;
+
+  virtualisation.podman = {
+    enable = true;
+    dockerCompat = true;
+    dockerSocket.enable = true;
+    defaultNetwork.settings.dns_enabled = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    dive
+    virtiofsd
+    podman-tui
+    podman-compose
+  ];
+
+  hardware.nvidia-container-toolkit.enable = true;
+}