nix check works!!

modules/virtualization/default.nix

@@ -0,0 +1,8 @@
+{ config, lib, ... }:
+
+{
+  imports = [
+    ./qemu.nix
+    ./podman.nix
+  ];
+}

modules/virtualization/podman.nix

@@ -0,0 +1,20 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  virtualisation.podman = {
+    enable = true;
+    dockerCompat = true;
+    defaultNetwork.settings.dns_enabled = true;
+  };
+
+  users.users.river.extraGroups = [ "podman" ];
+
+  environment.systemPackages = with pkgs; [
+    podman
+    podman-compose
+  ];
+}

modules/virtualization/qemu.nix

@@ -10,7 +10,6 @@
   programs.virt-manager.enable = true;
 
   virtualisation.libvirtd.qemu = {
-    ovmf.enable = true;
     swtpm.enable = true;
   };