diff --git a/pkgs/clan-cli/clan_cli/api/__init__.py b/pkgs/clan-cli/clan_cli/api/__init__.py
index 25d3c37b8..868a977bd 100644
--- a/pkgs/clan-cli/clan_cli/api/__init__.py
+++ b/pkgs/clan-cli/clan_cli/api/__init__.py
@@ -107,7 +107,9 @@ API.register(open_file)
         self.register(wrapper)
         return fn
 
-    def register(self, fn: Callable[..., T]) -> Callable[..., T]:
+    F = TypeVar("F", bound=Callable[..., Any])
+
+    def register(self, fn: F) -> F:
         if fn.__name__ in self._registry:
             msg = f"Function {fn.__name__} already registered"
             raise ClanError(msg)
diff --git a/pkgs/clan-cli/clan_cli/clan/create.py b/pkgs/clan-cli/clan_cli/clan/create.py
index 84c7d0132..0481e0d4f 100644
--- a/pkgs/clan-cli/clan_cli/clan/create.py
+++ b/pkgs/clan-cli/clan_cli/clan/create.py
@@ -68,7 +68,7 @@ def create_clan(options: CreateOptions) -> CreateClanResponse:
     )
 
     if options.initial:
-        init_inventory(options.directory, init=options.initial)
+        init_inventory(str(options.directory), init=options.initial)
 
     response = CreateClanResponse(
         flake_init=flake_init,
diff --git a/pkgs/clan-cli/clan_cli/inventory/classes.py b/pkgs/clan-cli/clan_cli/inventory/classes.py
index c0e5310ec..c66d5aa70 100644
--- a/pkgs/clan-cli/clan_cli/inventory/classes.py
+++ b/pkgs/clan-cli/clan_cli/inventory/classes.py
@@ -35,5 +35,5 @@ Service = dict[str, Any]
 @dataclass
 class Inventory:
     meta: Meta
-    services: Service
     machines: dict[str, Machine] = field(default_factory = dict)
+    services: dict[str, Service] = field(default_factory = dict)
diff --git a/pkgs/clan-cli/clan_cli/inventory/update.sh b/pkgs/clan-cli/clan_cli/inventory/update.sh
index 5d1bf5214..4debccddf 100755
--- a/pkgs/clan-cli/clan_cli/inventory/update.sh
+++ b/pkgs/clan-cli/clan_cli/inventory/update.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
-jsonSchema=$(nix build .#inventory-schema --print-out-paths)/schema.json
+jsonSchema=$(nix build .#inventory-schema-abstract --print-out-paths)/schema.json
 nix run .#classgen  "$jsonSchema" "$PKG_ROOT/clan_cli/inventory/classes.py"
\ No newline at end of file
diff --git a/pkgs/clan-cli/clan_cli/machines/hardware.py b/pkgs/clan-cli/clan_cli/machines/hardware.py
index 85538245a..dc48c6305 100644
--- a/pkgs/clan-cli/clan_cli/machines/hardware.py
+++ b/pkgs/clan-cli/clan_cli/machines/hardware.py
@@ -198,7 +198,7 @@ def generate_machine_hardware_info(
         f"HW/report: Hardware configuration for {machine_name}",
     )
     try:
-        show_machine_hardware_platform(clan_dir, machine_name)
+        show_machine_hardware_platform(clan_dir.path, machine_name)
     except ClanCmdError as e:
         log.exception("Failed to evaluate hardware-configuration.nix")
         # Restore the backup file
@@ -235,7 +235,7 @@ def hw_generate_command(args: argparse.Namespace) -> None:
         force=args.force,
     )
     hw_info = generate_machine_hardware_info(
-        opts.flake, opts.machine, opts.target_host, opts.password, opts.force
+        opts.flake, opts.machine, opts.target_host, opts.password
     )
     print("Successfully generated hardware information.")
     print(f"Target: {opts.machine} ({opts.target_host})")
diff --git a/pkgs/clan-cli/flake-module.nix b/pkgs/clan-cli/flake-module.nix
index 3f8399cd6..59e6bb093 100644
--- a/pkgs/clan-cli/flake-module.nix
+++ b/pkgs/clan-cli/flake-module.nix
@@ -124,7 +124,7 @@
             classFile = "classes.py";
           };
           installPhase = ''
-            ${self'.packages.classgen}/bin/classgen ${self'.packages.inventory-schema}/schema.json b_classes.py --stop-at "Service"
+            ${self'.packages.classgen}/bin/classgen ${self'.packages.inventory-schema-abstract}/schema.json b_classes.py --stop-at "Service"
             file1=$classFile
             file2=b_classes.py
 
diff --git a/pkgs/clan-cli/tests/test_modules.py b/pkgs/clan-cli/tests/test_modules.py
index a8c9889f1..16bbace6e 100644
--- a/pkgs/clan-cli/tests/test_modules.py
+++ b/pkgs/clan-cli/tests/test_modules.py
@@ -24,7 +24,7 @@ from helpers import cli
 @pytest.mark.with_core
 def test_list_modules(test_flake_with_core: FlakeForTest) -> None:
     base_path = test_flake_with_core.path
-    modules_info = list_modules(base_path)
+    modules_info = list_modules(str(base_path))
 
     assert len(modules_info.items()) > 1
     # Random test for those two modules