Inventory/schemas: move all schemas to legacyPackages

lib/inventory/flake-module.nix

@@ -25,20 +25,6 @@ in
         ];
       };
 
-      packages.inventory-schema-abstract = pkgs.stdenv.mkDerivation {
-        name = "inventory-schema";
-        buildInputs = [ pkgs.cue ];
-        src = ./.;
-        buildPhase = ''
-          export SCHEMA=${builtins.toFile "inventory-schema.json" (builtins.toJSON self'.legacyPackages.schemas.inventory)}
-          cp $SCHEMA schema.json
-          cue import -f -p compose -l '#Root:' schema.json
-          mkdir $out
-          cp schema.cue $out
-          cp schema.json $out
-        '';
-      };
-
       legacyPackages.schemas = (
         import ./schemas {
           inherit

lib/inventory/schemas/default.nix

@@ -30,10 +30,31 @@ let
       "E501"
     ];
   } ./render_schema.py;
+
+  inventory-schema-abstract = pkgs.stdenv.mkDerivation {
+    name = "inventory-schema-files";
+    buildInputs = [ pkgs.cue ];
+    src = ./.;
+    buildPhase = ''
+      export SCHEMA=${builtins.toFile "inventory-schema.json" (builtins.toJSON inventorySchema)}
+      cp $SCHEMA schema.json
+      # Also generate a CUE schema version that is derived from the JSON schema
+      cue import -f -p compose -l '#Root:' schema.json
+      mkdir $out
+      cp schema.cue $out
+      cp schema.json $out
+    '';
+  };
 in
 {
-  inherit inventorySchema modulesSchema renderSchema;
+  inherit
+    inventorySchema
+    modulesSchema
+    renderSchema
+    inventory-schema-abstract
+    ;
 
+  # Inventory schema, with the modules schema added per role
   inventory =
     pkgs.runCommand "rendered"
       {