diff --git a/.github/workflows/builder.yml b/.github/workflows/builder.yml
index 9d3ab18f7c1..8f419cca1da 100644
--- a/.github/workflows/builder.yml
+++ b/.github/workflows/builder.yml
@@ -517,7 +517,7 @@ jobs:
           tags: ${{ env.HASSFEST_IMAGE_TAG }}
 
       - name: Run hassfest against core
-        run: docker run --rm -v ${{ github.workspace }}/homeassistant:/github/workspace/homeassistant ${{ env.HASSFEST_IMAGE_TAG }} --core-integrations-path=/github/workspace/homeassistant/components
+        run: docker run --rm -v ${{ github.workspace }}:/github/workspace ${{ env.HASSFEST_IMAGE_TAG }} --core-path=/github/workspace
 
       - name: Push Docker image
         if: needs.init.outputs.channel != 'dev' && needs.init.outputs.publish == 'true'
diff --git a/script/gen_requirements_all.py b/script/gen_requirements_all.py
index fa46710d100..5cc609eec2a 100755
--- a/script/gen_requirements_all.py
+++ b/script/gen_requirements_all.py
@@ -628,7 +628,6 @@ def _get_hassfest_config() -> Config:
         specific_integrations=None,
         action="validate",
         requirements=True,
-        core_integrations_path=Path("homeassistant/components"),
     )
 
 
diff --git a/script/hassfest/__main__.py b/script/hassfest/__main__.py
index 81670de5afd..c93d8fd4499 100644
--- a/script/hassfest/__main__.py
+++ b/script/hassfest/__main__.py
@@ -110,10 +110,10 @@ def get_config() -> Config:
         help="Comma-separate list of plugins to run. Valid plugin names: %(default)s",
     )
     parser.add_argument(
-        "--core-integrations-path",
+        "--core-path",
         type=Path,
-        default=Path("homeassistant/components"),
-        help="Path to core integrations",
+        default=Path(),
+        help="Path to core",
     )
     parsed = parser.parse_args()
 
@@ -125,16 +125,18 @@ def get_config() -> Config:
             "Generate is not allowed when limiting to specific integrations"
         )
 
-    if not parsed.integration_path and not Path("requirements_all.txt").is_file():
+    if (
+        not parsed.integration_path
+        and not (parsed.core_path / "requirements_all.txt").is_file()
+    ):
         raise RuntimeError("Run from Home Assistant root")
 
     return Config(
-        root=Path().absolute(),
+        root=parsed.core_path.absolute(),
         specific_integrations=parsed.integration_path,
         action=parsed.action,
         requirements=parsed.requirements,
         plugins=set(parsed.plugins),
-        core_integrations_path=parsed.core_integrations_path,
     )
 
 
diff --git a/script/hassfest/docker.py b/script/hassfest/docker.py
index 57d86bc4def..022caee30cd 100644
--- a/script/hassfest/docker.py
+++ b/script/hassfest/docker.py
@@ -185,12 +185,12 @@ def _generate_files(config: Config) -> list[File]:
         + 10
     ) * 1000
 
-    package_versions = _get_package_versions(Path("requirements.txt"), {"uv"})
+    package_versions = _get_package_versions(config.root / "requirements.txt", {"uv"})
     package_versions |= _get_package_versions(
-        Path("requirements_test.txt"), {"pipdeptree", "tqdm"}
+        config.root / "requirements_test.txt", {"pipdeptree", "tqdm"}
     )
     package_versions |= _get_package_versions(
-        Path("requirements_test_pre_commit.txt"), {"ruff"}
+        config.root / "requirements_test_pre_commit.txt", {"ruff"}
     )
 
     return [
diff --git a/script/hassfest/docker/entrypoint.sh b/script/hassfest/docker/entrypoint.sh
index 7b75eb186d2..eabc08a9499 100755
--- a/script/hassfest/docker/entrypoint.sh
+++ b/script/hassfest/docker/entrypoint.sh
@@ -2,16 +2,28 @@
 
 integrations=""
 integration_path=""
+core_path_provided=false
 
-# Enable recursive globbing using find
-for manifest in $(find . -name "manifest.json"); do
-    manifest_path=$(realpath "${manifest}")
-    integrations="$integrations --integration-path ${manifest_path%/*}"
+for arg in "$@"; do
+    case "$arg" in
+        --core-path=*) 
+            core_path_provided=true
+            break
+            ;;
+    esac
 done
 
-if [ -z "$integrations" ]; then
-    echo "Error: No integrations found!"
-    exit 1
+if [ "$core_path_provided" = false ]; then
+    # Enable recursive globbing using find
+    for manifest in $(find . -name "manifest.json"); do
+        manifest_path=$(realpath "${manifest}")
+        integrations="$integrations --integration-path ${manifest_path%/*}"
+    done
+
+    if [ -z "$integrations" ]; then
+        echo "Error: No integrations found!"
+        exit 1
+    fi
 fi
 
 cd /usr/src/homeassistant || exit 1
diff --git a/script/hassfest/model.py b/script/hassfest/model.py
index 377f82b0d5c..08ded687096 100644
--- a/script/hassfest/model.py
+++ b/script/hassfest/model.py
@@ -30,11 +30,15 @@ class Config:
     root: pathlib.Path
     action: Literal["validate", "generate"]
     requirements: bool
-    core_integrations_path: pathlib.Path
+    core_integrations_path: pathlib.Path = field(init=False)
     errors: list[Error] = field(default_factory=list)
     cache: dict[str, Any] = field(default_factory=dict)
     plugins: set[str] = field(default_factory=set)
 
+    def __post_init__(self) -> None:
+        """Post init."""
+        self.core_integrations_path = self.root / "homeassistant/components"
+
     def add_error(self, *args: Any, **kwargs: Any) -> None:
         """Add an error."""
         self.errors.append(Error(*args, **kwargs))
diff --git a/script/hassfest/quality_scale.py b/script/hassfest/quality_scale.py
index 72f01f3d1d1..5a09f8c7bd8 100644
--- a/script/hassfest/quality_scale.py
+++ b/script/hassfest/quality_scale.py
@@ -1358,7 +1358,7 @@ def validate_iqs_file(config: Config, integration: Integration) -> None:
 
     for rule_name in rules_done:
         if (validator := VALIDATORS.get(rule_name)) and (
-            errors := validator.validate(integration, rules_done=rules_done)
+            errors := validator.validate(config, integration, rules_done=rules_done)
         ):
             for error in errors:
                 integration.add_error("quality_scale", f"[{rule_name}] {error}")
diff --git a/script/hassfest/quality_scale_validation/__init__.py b/script/hassfest/quality_scale_validation/__init__.py
index 892bb70fabd..7c41a58b601 100644
--- a/script/hassfest/quality_scale_validation/__init__.py
+++ b/script/hassfest/quality_scale_validation/__init__.py
@@ -2,14 +2,14 @@
 
 from typing import Protocol
 
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 
 class RuleValidationProtocol(Protocol):
     """Protocol for rule validation."""
 
     def validate(
-        self, integration: Integration, *, rules_done: set[str]
+        self, config: Config, integration: Integration, *, rules_done: set[str]
     ) -> list[str] | None:
         """Validate a quality scale rule.
 
diff --git a/script/hassfest/quality_scale_validation/config_entry_unloading.py b/script/hassfest/quality_scale_validation/config_entry_unloading.py
index fb636a7f2ed..4874ddc4625 100644
--- a/script/hassfest/quality_scale_validation/config_entry_unloading.py
+++ b/script/hassfest/quality_scale_validation/config_entry_unloading.py
@@ -6,7 +6,7 @@ https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/c
 import ast
 
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 
 def _has_unload_entry_function(module: ast.Module) -> bool:
@@ -17,7 +17,9 @@ def _has_unload_entry_function(module: ast.Module) -> bool:
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration has a config flow."""
 
     init_file = integration.path / "__init__.py"
diff --git a/script/hassfest/quality_scale_validation/config_flow.py b/script/hassfest/quality_scale_validation/config_flow.py
index 6e88aa462f4..d1ac70ab469 100644
--- a/script/hassfest/quality_scale_validation/config_flow.py
+++ b/script/hassfest/quality_scale_validation/config_flow.py
@@ -3,10 +3,12 @@
 https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/config-flow/
 """
 
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration implements config flow."""
 
     if not integration.config_flow:
diff --git a/script/hassfest/quality_scale_validation/diagnostics.py b/script/hassfest/quality_scale_validation/diagnostics.py
index 44012208bcb..ea143002b09 100644
--- a/script/hassfest/quality_scale_validation/diagnostics.py
+++ b/script/hassfest/quality_scale_validation/diagnostics.py
@@ -6,7 +6,7 @@ https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/d
 import ast
 
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 DIAGNOSTICS_FUNCTIONS = {
     "async_get_config_entry_diagnostics",
@@ -22,7 +22,9 @@ def _has_diagnostics_function(module: ast.Module) -> bool:
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration implements diagnostics."""
 
     diagnostics_file = integration.path / "diagnostics.py"
diff --git a/script/hassfest/quality_scale_validation/discovery.py b/script/hassfest/quality_scale_validation/discovery.py
index db50cdba55a..d11bcaf2cec 100644
--- a/script/hassfest/quality_scale_validation/discovery.py
+++ b/script/hassfest/quality_scale_validation/discovery.py
@@ -6,7 +6,7 @@ https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/d
 import ast
 
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 MANIFEST_KEYS = [
     "bluetooth",
@@ -38,7 +38,9 @@ def _has_discovery_function(module: ast.Module) -> bool:
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration implements diagnostics."""
 
     config_flow_file = integration.path / "config_flow.py"
diff --git a/script/hassfest/quality_scale_validation/parallel_updates.py b/script/hassfest/quality_scale_validation/parallel_updates.py
index 3483a44f504..00ad891774d 100644
--- a/script/hassfest/quality_scale_validation/parallel_updates.py
+++ b/script/hassfest/quality_scale_validation/parallel_updates.py
@@ -7,7 +7,7 @@ import ast
 
 from homeassistant.const import Platform
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 
 def _has_parallel_updates_defined(module: ast.Module) -> bool:
@@ -18,7 +18,9 @@ def _has_parallel_updates_defined(module: ast.Module) -> bool:
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration sets PARALLEL_UPDATES constant."""
 
     errors = []
diff --git a/script/hassfest/quality_scale_validation/reauthentication_flow.py b/script/hassfest/quality_scale_validation/reauthentication_flow.py
index 81d34ec4f7f..3db9700af98 100644
--- a/script/hassfest/quality_scale_validation/reauthentication_flow.py
+++ b/script/hassfest/quality_scale_validation/reauthentication_flow.py
@@ -6,7 +6,7 @@ https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/r
 import ast
 
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 
 def _has_step_reauth_function(module: ast.Module) -> bool:
@@ -17,7 +17,9 @@ def _has_step_reauth_function(module: ast.Module) -> bool:
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration has a reauthentication flow."""
 
     config_flow_file = integration.path / "config_flow.py"
diff --git a/script/hassfest/quality_scale_validation/reconfiguration_flow.py b/script/hassfest/quality_scale_validation/reconfiguration_flow.py
index b27475e8c70..28cc0ef6d43 100644
--- a/script/hassfest/quality_scale_validation/reconfiguration_flow.py
+++ b/script/hassfest/quality_scale_validation/reconfiguration_flow.py
@@ -6,7 +6,7 @@ https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/r
 import ast
 
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 
 def _has_step_reconfigure_function(module: ast.Module) -> bool:
@@ -17,7 +17,9 @@ def _has_step_reconfigure_function(module: ast.Module) -> bool:
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration has a reconfiguration flow."""
 
     config_flow_file = integration.path / "config_flow.py"
diff --git a/script/hassfest/quality_scale_validation/runtime_data.py b/script/hassfest/quality_scale_validation/runtime_data.py
index 8ad721a218c..cfc4c5224de 100644
--- a/script/hassfest/quality_scale_validation/runtime_data.py
+++ b/script/hassfest/quality_scale_validation/runtime_data.py
@@ -8,7 +8,7 @@ import re
 
 from homeassistant.const import Platform
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 _ANNOTATION_MATCH = re.compile(r"^[A-Za-z]+ConfigEntry$")
 _FUNCTIONS: dict[str, dict[str, int]] = {
@@ -102,7 +102,9 @@ def _check_typed_config_entry(integration: Integration) -> list[str]:
     return errors
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate correct use of ConfigEntry.runtime_data."""
     init_file = integration.path / "__init__.py"
     init = ast_parse_module(init_file)
diff --git a/script/hassfest/quality_scale_validation/strict_typing.py b/script/hassfest/quality_scale_validation/strict_typing.py
index a7755b6bb40..a27ab752cf0 100644
--- a/script/hassfest/quality_scale_validation/strict_typing.py
+++ b/script/hassfest/quality_scale_validation/strict_typing.py
@@ -7,27 +7,30 @@ from functools import lru_cache
 from pathlib import Path
 import re
 
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 _STRICT_TYPING_FILE = Path(".strict-typing")
 _COMPONENT_REGEX = r"homeassistant.components.([^.]+).*"
 
 
 @lru_cache
-def _strict_typing_components() -> set[str]:
+def _strict_typing_components(strict_typing_file: Path) -> set[str]:
     return set(
         {
             match.group(1)
-            for line in _STRICT_TYPING_FILE.read_text(encoding="utf-8").splitlines()
+            for line in strict_typing_file.read_text(encoding="utf-8").splitlines()
             if (match := re.match(_COMPONENT_REGEX, line)) is not None
         }
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration has strict typing enabled."""
+    strict_typing_file = config.root / _STRICT_TYPING_FILE
 
-    if integration.domain not in _strict_typing_components():
+    if integration.domain not in _strict_typing_components(strict_typing_file):
         return [
             "Integration does not have strict typing enabled "
             "(is missing from .strict-typing)"
diff --git a/script/hassfest/quality_scale_validation/unique_config_entry.py b/script/hassfest/quality_scale_validation/unique_config_entry.py
index 8c38923e584..83b3d20bd80 100644
--- a/script/hassfest/quality_scale_validation/unique_config_entry.py
+++ b/script/hassfest/quality_scale_validation/unique_config_entry.py
@@ -6,7 +6,7 @@ https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/u
 import ast
 
 from script.hassfest import ast_parse_module
-from script.hassfest.model import Integration
+from script.hassfest.model import Config, Integration
 
 
 def _has_method_call(module: ast.Module, name: str) -> bool:
@@ -30,7 +30,9 @@ def _has_abort_unique_id_configured(module: ast.Module) -> bool:
     )
 
 
-def validate(integration: Integration, *, rules_done: set[str]) -> list[str] | None:
+def validate(
+    config: Config, integration: Integration, *, rules_done: set[str]
+) -> list[str] | None:
     """Validate that the integration prevents duplicate devices."""
 
     if integration.manifest.get("single_config_entry"):
diff --git a/tests/hassfest/test_requirements.py b/tests/hassfest/test_requirements.py
index e70bee104c9..b9259596c65 100644
--- a/tests/hassfest/test_requirements.py
+++ b/tests/hassfest/test_requirements.py
@@ -12,13 +12,12 @@ from script.hassfest.requirements import validate_requirements_format
 def integration():
     """Fixture for hassfest integration model."""
     return Integration(
-        path=Path("homeassistant/components/test"),
+        path=Path("homeassistant/components/test").absolute(),
         _config=Config(
             root=Path(".").absolute(),
             specific_integrations=None,
             action="validate",
             requirements=True,
-            core_integrations_path=Path("homeassistant/components"),
         ),
         _manifest={
             "domain": "test",
diff --git a/tests/hassfest/test_version.py b/tests/hassfest/test_version.py
index 30677356101..20c3d93bda5 100644
--- a/tests/hassfest/test_version.py
+++ b/tests/hassfest/test_version.py
@@ -16,13 +16,12 @@ from script.hassfest.model import Config, Integration
 def integration():
     """Fixture for hassfest integration model."""
     integration = Integration(
-        "",
+        Path(),
         _config=Config(
             root=Path(".").absolute(),
             specific_integrations=None,
             action="validate",
             requirements=True,
-            core_integrations_path=Path("homeassistant/components"),
         ),
     )
     integration._manifest = {