Rename modules directory

modules/docker.nix

@@ -0,0 +1,24 @@
+{ config, lib, ... }:
+
+{
+  flake.modules.nixos.pc = args: {
+    options.docker.enable = lib.mkEnableOption "Enable Docker";
+
+    config = lib.mkIf args.config.docker.enable {
+      virtualisation = {
+        oci-containers.backend = "docker";
+
+        docker = {
+          enable = true;
+
+          autoPrune = {
+            enable = true;
+            dates = "weekly";
+          };
+        };
+      };
+
+      users.users.${config.flake.meta.owner.username}.extraGroups = [ "docker" ];
+    };
+  };
+}