add mgba; change from podman to docker;

configuration/modules/virtualisation.nix

@@ -10,18 +10,16 @@
       enable = true;
       qemu.vhostUserPackages = [ pkgs.virtiofsd ];
     };
-    # remember to add the necessary users to the podman group
-    podman = {
+    # remember to add the necessary users to the docker group
+    docker = {
       enable = true;
-      # Create a `docker` alias for podman, to use it as a drop-in replacement
-      dockerCompat = true;
-      # Required for containers under podman-compose to be able to talk to each other.
-      defaultNetwork.settings.dns_enabled = true;
+      storageDriver = "btrfs";
     };
     waydroid = {
       enable = true;
     };
   };
   programs.virt-manager.enable = true;
+  # environment.systemPackages = with pkgs;[ podman-compose ];
 }