diff --git a/lib/build-clan/interface.nix b/lib/build-clan/interface.nix
index 107806707..c63b81af1 100644
--- a/lib/build-clan/interface.nix
+++ b/lib/build-clan/interface.nix
@@ -198,24 +198,21 @@ in
         options = {
           # Those options are interfaced by the CLI
           # We don't specify the type here, for better performance.
-          inventory = lib.mkOption { type = lib.types.raw; };
-          # all exported clan templates from this clan
-          templates = lib.mkOption { type = lib.types.raw; };
-          # all exported clan modules from this clan
-          modules = lib.mkOption { type = lib.types.raw; };
-          # all inventory module schemas
-          inventoryFile = lib.mkOption { type = lib.types.raw; };
-          # The machine 'imports' generated by the inventory per machine
-          inventoryClass = lib.mkOption { type = lib.types.raw; };
-          evalServiceSchema = lib.mkOption { };
           # clan-core's modules
           clanModules = lib.mkOption { type = lib.types.raw; };
-          source = lib.mkOption { type = lib.types.raw; };
-          meta = lib.mkOption { type = lib.types.raw; };
+
+          # The machine 'imports' generated by the inventory per machine
+          inventoryClass = lib.mkOption { type = lib.types.raw; };
+
+          # TODO: remove all dependents in python, delete this option
+          inventory = lib.mkOption {
+            type = lib.types.raw;
+            apply = lib.warn "The 'clanInternals.inventory' option is deprecated, use 'clanInternals.inventoryClass' instead.";
+          };
+
           secrets = lib.mkOption { type = lib.types.raw; };
-          clanLib = lib.mkOption { type = lib.types.raw; };
+
           machines = lib.mkOption { type = lib.types.raw; };
-          all-machines-json = lib.mkOption { type = lib.types.raw; };
         };
       };
     };
diff --git a/lib/build-clan/module.nix b/lib/build-clan/module.nix
index 7ccd5c3ed..7df034d34 100644
--- a/lib/build-clan/module.nix
+++ b/lib/build-clan/module.nix
@@ -133,24 +133,26 @@ let
     ) supportedSystems
   );
 
-  inventoryFile = "${directory}/inventory.json";
-
-  inventoryLoaded =
-    if builtins.pathExists inventoryFile then
-      (builtins.fromJSON (builtins.readFile inventoryFile))
-    else
-      { };
-
 in
 {
   imports = [
-    # Merge the inventory file
-    {
-      inventory = _: {
-        _file = inventoryFile;
-        config = inventoryLoaded;
-      };
-    }
+    (
+      { ... }:
+      let
+        file = "${directory}/inventory.json";
+
+        inventoryLoaded =
+          if builtins.pathExists file then (builtins.fromJSON (builtins.readFile file)) else { };
+      in
+      {
+        imports = [
+          {
+            inventory._inventoryFile = file;
+          }
+        ];
+        inventory = inventoryLoaded;
+      }
+    )
     {
       # TODO: Figure out why this causes infinite recursion
       inventory.machines = lib.optionalAttrs (builtins.pathExists "${directory}/machines") (
@@ -238,38 +240,18 @@ in
 
     clanInternals = {
       inherit inventoryClass;
-
-      # Endpoint that can be called to get a service schema
-      evalServiceSchema = clan-core.clanLib.evalServiceSchema config.self;
+      inventory = config.inventory;
 
       # TODO: unify this interface
       # We should have only clan.modules. (consistent with clan.templates)
-      inherit (clan-core) clanModules clanLib;
-      modules = config.modules;
-
-      inherit inventoryFile;
+      inherit (clan-core) clanModules;
 
       templates = config.templates;
-      inventory = config.inventory;
-      # TODO: Remove this in about a month
-      # It is only here for backwards compatibility for people with older CLI versions
-      inventoryValuesPrios = inventoryClass.introspection;
-      meta = config.inventory.meta;
-      secrets = config.secrets;
 
-      source = "${clan-core}";
+      secrets = config.secrets;
 
       # machine specifics
       machines = configsPerSystem;
-      all-machines-json =
-        lib.trace "Your clan-cli and the clan-core input have incompatible versions" lib.mapAttrs
-          (
-            system: configs:
-            nixpkgs.legacyPackages.${system}.writers.writeJSON "machines.json" (
-              lib.mapAttrs (_: m: m.config.system.clan.deployment.data) configs
-            )
-          )
-          configsPerSystem;
     };
   };
 }
diff --git a/lib/inventory/build-inventory/interface.nix b/lib/inventory/build-inventory/interface.nix
index d693df3df..59b877fdf 100644
--- a/lib/inventory/build-inventory/interface.nix
+++ b/lib/inventory/build-inventory/interface.nix
@@ -97,6 +97,12 @@ in
     ./assertions.nix
   ];
   options = {
+    _inventoryFile = lib.mkOption {
+      type = types.path;
+      readOnly = true;
+      internal = true;
+      visible = false;
+    };
     _legacyModules = lib.mkOption {
       internal = true;
       visible = false;