diff --git a/inventory.json b/inventory.json
index 028bc4112..df0e96053 100644
--- a/inventory.json
+++ b/inventory.json
@@ -26,19 +26,19 @@
         },
         "roles": {
           "default": {
-            "imports": [],
+            "extraModules": [],
             "machines": ["test-inventory-machine"],
             "tags": []
           }
         },
         "config": {},
-        "imports": [],
+        "extraModules": [],
         "machines": {
           "test-inventory-machine": {
             "config": {
               "packages": ["zed-editor"]
             },
-            "imports": []
+            "extraModules": []
           }
         }
       },
@@ -51,19 +51,19 @@
         "roles": {
           "default": {
             "config": {},
-            "imports": [],
+            "extraModules": [],
             "machines": ["test-inventory-machine"],
             "tags": []
           }
         },
         "config": {},
-        "imports": [],
+        "extraModules": [],
         "machines": {
           "test-inventory-machine": {
             "config": {
               "packages": ["chromium"]
             },
-            "imports": []
+            "extraModules": []
           }
         }
       }
@@ -78,19 +78,19 @@
         "roles": {
           "default": {
             "config": {},
-            "imports": [],
+            "extraModules": [],
             "machines": ["test-inventory-machine"],
             "tags": []
           }
         },
         "config": {},
-        "imports": [],
+        "extraModules": [],
         "machines": {
           "test-inventory-machine": {
             "config": {
               "device": "/dev/null"
             },
-            "imports": []
+            "extraModules": []
           }
         }
       }
diff --git a/lib/build-clan/module.nix b/lib/build-clan/module.nix
index 22b154a3b..b05dfdc85 100644
--- a/lib/build-clan/module.nix
+++ b/lib/build-clan/module.nix
@@ -223,6 +223,14 @@ in
   imports = [
     # Merge the inventory file
     { inventory = inventoryLoaded; }
+    # TODO: Figure out why this causes infinite recursion
+    {
+      inventory.machines = lib.optionalAttrs (builtins.pathExists "${directory}/machines") (
+        builtins.mapAttrs (_n: _v: { }) (
+          (lib.filterAttrs (_: t: t == "directory") (builtins.readDir "${directory}/machines"))
+        )
+      );
+    }
     # Merge the meta attributes from the buildClan function
     { inventory.meta = if config.meta != null then config.meta else { }; }
   ];
diff --git a/lib/build-clan/tests.nix b/lib/build-clan/tests.nix
index eb0250051..5bfe6aab5 100644
--- a/lib/build-clan/tests.nix
+++ b/lib/build-clan/tests.nix
@@ -111,7 +111,10 @@ in
     in
     {
       expr = builtins.attrNames result.nixosConfigurations;
-      expected = [ "test-inventory-machine" ];
+      expected = [
+        "test-backup"
+        "test-inventory-machine"
+      ];
     };
 
   test_buildClan_all_machines =
diff --git a/lib/inventory/build-inventory/default.nix b/lib/inventory/build-inventory/default.nix
index 855118a3b..d3d0e3ec0 100644
--- a/lib/inventory/build-inventory/default.nix
+++ b/lib/inventory/build-inventory/default.nix
@@ -145,7 +145,7 @@ let
               builtins.map (role: serviceConfig.roles.${role}.config or { }) inverseRoles.${machineName} or [ ]
             );
 
-            customImports = map (s: "${directory}/${s}") (
+            customImports = map (s: if builtins.typeOf s == "string" then "${directory}/${s}" else s) (
               globalImports ++ machineImports ++ roleServiceImports
             );
           in
diff --git a/lib/inventory/build-inventory/interface.nix b/lib/inventory/build-inventory/interface.nix
index dd20a676a..d505c2fc0 100644
--- a/lib/inventory/build-inventory/interface.nix
+++ b/lib/inventory/build-inventory/interface.nix
@@ -33,13 +33,15 @@ let
     type = types.attrsOf types.anything;
   };
 
-  importsOption = lib.mkOption {
+  extraModulesOption = lib.mkOption {
     description = ''
-      List of imported '.nix' files.
+      List of imported '.nix' expressions.
 
-      Each filename must be a string and is interpreted relative to the 'directory' passed to buildClan.
+      Strings are interpreted relative to the 'directory' passed to buildClan.
       The import only happens if the machine is part of the service or role.
 
+      Other types are passed through to the nixos configuration.
+
       ## Example
 
       To import the `special.nix` file
@@ -55,13 +57,18 @@ let
 
       ```nix
       {
-        imports = [ "modules/special.nix" ];
+        extraModules = [ "modules/special.nix" ];
       }
       ```
 
     '';
     default = [ ];
-    type = types.listOf types.str;
+    type = types.listOf (
+      types.oneOf [
+        types.str
+        types.anything
+      ]
+    );
   };
 in
 {
@@ -113,13 +120,13 @@ in
             { name, ... }:
             {
               options.meta = metaOptionsWith name;
-              options.imports = importsOption;
+              options.extraModules = extraModulesOption;
               options.config = moduleConfig;
               options.machines = lib.mkOption {
                 default = { };
                 type = types.attrsOf (
                   types.submodule {
-                    options.imports = importsOption;
+                    options.extraModules = extraModulesOption;
                     options.config = moduleConfig;
                   }
                 );
@@ -138,7 +145,7 @@ in
                       type = types.listOf types.str;
                     };
                     options.config = moduleConfig;
-                    options.imports = importsOption;
+                    options.extraModules = extraModulesOption;
                   }
                 );
               };