got ragenix working in new format

hosts/oren/flake.nix

@@ -0,0 +1,66 @@
+{
+  description = "Oren system flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.11";
+    home-manager = {
+      url = "github:nix-community/home-manager/release-24.11";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    mods_common.url = "../../modules/common";
+    mods_common.inputs.nixpkgs.follows = "nixpkgs";
+    mods_boot_systemd.url = "../../modules/boot_systemd";
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      home-manager,
+      mods_boot_systemd,
+      ...
+    }@inputs:
+    let
+      configuration_name = "oren";
+      lib = nixpkgs.lib;
+    in
+    {
+      nixosConfigurations = {
+        "${configuration_name}" =
+          let
+            auto_modules = builtins.concatMap (
+              input:
+              lib.optionals
+                (builtins.hasAttr "nixosModules" input && builtins.hasAttr "default" input.nixosModules)
+                [
+                  input.nixosModules.default
+                ]
+            ) (builtins.attrValues inputs);
+          in
+          (lib.nixosSystem {
+            modules = [
+              ./configuration.nix
+              ./hardware-configuration.nix
+              (
+                {
+                  ...
+                }:
+                {
+                  mods = {
+                    common = {
+                      systemName = configuration_name;
+                      allowUnfree = true;
+                      primaryUser = "josh";
+                    };
+                  };
+                }
+              )
+            ] ++ auto_modules;
+            specialArgs = {
+              inherit inputs;
+            };
+          });
+      };
+    };
+}