diff --git a/.copier-answers.yaml b/.copier-answers.yaml
index 6edb06c..e9155f7 100644
--- a/.copier-answers.yaml
+++ b/.copier-answers.yaml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: ebb6e1c
+_commit: '4372075'
 _src_path: https://github.com/python-project-templates/base.git
 add_docs: false
 add_extension: python
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 0583a17..2cba429 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -15,7 +15,7 @@ on:
   workflow_dispatch:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 permissions:
diff --git a/Makefile b/Makefile
index 2d00fe7..261a367 100644
--- a/Makefile
+++ b/Makefile
@@ -25,16 +25,16 @@ lint-py:  ## lint python with ruff
 	python -m ruff format --check hatch_rs
 
 lint-docs:  ## lint docs with mdformat and codespell
-	python -m mdformat --check README.md 
-	python -m codespell_lib README.md 
+	python -m mdformat --check README.md $(wildcard docs/src)
+	python -m codespell_lib README.md $(wildcard docs/src)
 
 fix-py:  ## autoformat python code with ruff
 	python -m ruff check --fix hatch_rs
 	python -m ruff format hatch_rs
 
 fix-docs:  ## autoformat docs with mdformat and codespell
-	python -m mdformat README.md 
-	python -m codespell_lib --write README.md 
+	python -m mdformat README.md $(wildcard docs/src)
+	python -m codespell_lib --write README.md $(wildcard docs/src)
 
 lint: lint-py lint-docs  ## run all linters
 lints: lint
@@ -50,9 +50,9 @@ check-dist:  ## check python sdist and wheel with check-dist
 	check-dist -v
 
 check-types:  ## check python types with ty
-	ty check --python $$(which python)
+	python -m ty check
 
-checks: check-dist
+checks: check-dist check-types
 
 # Alias
 check: checks
diff --git a/hatch_rs/structs.py b/hatch_rs/structs.py
index e65f2c1..d71fab3 100644
--- a/hatch_rs/structs.py
+++ b/hatch_rs/structs.py
@@ -683,7 +683,7 @@ class HatchRustBuildConfig(BaseModel):
     name: str | None = Field(default=None)
 
     module: str = Field(description="Python module name for the Rust extension.")
-    path: Path | None = Field(default=None, description="Path to the project root directory.")
+    path: Path = Field(default_factory=Path.cwd, description="Path to the project root directory.")
     manifest: Path | None = Field(default=None, description="Path to Cargo.toml, relative to path unless absolute.")
     build_type: BuildType = Field(default="release", alias="build-type")
     profile: str | None = Field(default=None, description="Cargo profile to build. Overrides build_type when set.")
diff --git a/hatch_rs/tests/test_hook_registration.py b/hatch_rs/tests/test_hook_registration.py
index 29585a0..3cc1ae8 100644
--- a/hatch_rs/tests/test_hook_registration.py
+++ b/hatch_rs/tests/test_hook_registration.py
@@ -1,4 +1,5 @@
 from hatchling.builders.hooks.plugin.interface import BuildHookInterface
+from hatchling.metadata.core import ProjectMetadata
 
 from hatch_rs.hooks import hatch_register_build_hook
 
@@ -10,7 +11,7 @@ def test_registered_build_hook_accepts_hatchling_configuration(tmp_path):
         root=str(tmp_path),
         config=config,
         build_config=None,
-        metadata=None,
+        metadata=ProjectMetadata(str(tmp_path), None, {"project": {"name": "project", "version": "0.1.0"}}),
         directory=str(tmp_path),
         target_name="wheel",
     )
diff --git a/hatch_rs/tests/test_plugin.py b/hatch_rs/tests/test_plugin.py
index acd9251..0b3866c 100644
--- a/hatch_rs/tests/test_plugin.py
+++ b/hatch_rs/tests/test_plugin.py
@@ -1,3 +1,5 @@
+from hatchling.metadata.core import ProjectMetadata
+
 from hatch_rs.plugin import HatchRustBuildHook
 
 
@@ -21,16 +23,12 @@ def execute(self):
         def cleanup(self):
             pass
 
-    class Metadata:
-        def __init__(self):
-            self.config = {"project": {"name": "project"}}
-
     monkeypatch.setattr("hatch_rs.plugin.import_string", lambda path: CustomBuildPlan)
     hook = HatchRustBuildHook(
         root=str(tmp_path),
         config={"module": "project", "path": str(tmp_path), "build-plan-class": "tests.CustomBuildPlan"},
         build_config=None,
-        metadata=Metadata(),
+        metadata=ProjectMetadata(str(tmp_path), None, {"project": {"name": "project", "version": "0.1.0"}}),
         directory=str(tmp_path),
         target_name="wheel",
     )
diff --git a/hatch_rs/tests/test_projects.py b/hatch_rs/tests/test_projects.py
index e7179ad..2e54568 100644
--- a/hatch_rs/tests/test_projects.py
+++ b/hatch_rs/tests/test_projects.py
@@ -1,3 +1,4 @@
+from importlib import import_module
 from json import loads
 from os import environ, listdir, pathsep
 from os.path import dirname
@@ -77,9 +78,9 @@ def test_basic(self, project_folder):
         # import
         here = Path(__file__).parent / project_folder
         path.insert(0, str(here))
-        import project.project
+        project = import_module("project.project")
 
-        assert project.project.hello() == "A string"
+        assert project.hello() == "A string"
 
     def test_cargo_controls_manifest_rustc_args_and_isolated_target_dir(self):
         project_folder = "test_project_cargo_controls"
@@ -141,7 +142,7 @@ def test_cargo_controls_manifest_rustc_args_and_isolated_target_dir(self):
         # import
         here = Path(__file__).parent / project_folder
         path.insert(0, str(here))
-        import cargo_controls_project
+        cargo_controls_project = import_module("cargo_controls_project")
 
         assert cargo_controls_project.hello() == "Cargo controls 1"
         assert cargo_controls_project.compile_env() == "enabled"
@@ -217,7 +218,7 @@ def test_python_extension_and_c_abi_shared_library_artifacts(self):
         # import
         here = Path(__file__).parent / project_folder
         path.insert(0, str(here))
-        import c_abi_bundle_project
+        c_abi_bundle_project = import_module("c_abi_bundle_project")
 
         assert c_abi_bundle_project.extension_answer() == 42
         assert c_abi_bundle_project.shared_answer() == 7
@@ -274,7 +275,7 @@ def test_generated_file_and_header_artifacts(self):
         # import
         here = Path(__file__).parent / project_folder
         path.insert(0, str(here))
-        import generated_files_project
+        generated_files_project = import_module("generated_files_project")
 
         assert generated_files_project.generated_text() == "generated package data"
 
@@ -340,6 +341,6 @@ def test_editable_debug(self):
         # import
         here = Path(__file__).parent / project_folder
         path.insert(0, str(here))
-        import project.extension
+        extension = import_module("project.extension")
 
-        assert project.extension.hello() == "A string"
+        assert extension.hello() == "A string"
diff --git a/hatch_rs/tests/test_structs.py b/hatch_rs/tests/test_structs.py
index b3e2570..346ed46 100644
--- a/hatch_rs/tests/test_structs.py
+++ b/hatch_rs/tests/test_structs.py
@@ -3,10 +3,12 @@
 from json import loads
 from pathlib import Path, PureWindowsPath
 from sys import version_info
+from typing import Any
 
 import pytest
 
 from hatch_rs.structs import (
+    CargoTargetKind,
     HatchRustBuildPlan,
     RustArtifactConfig,
     executable_name,
@@ -119,7 +121,7 @@ def test_resolve_target_triple_rejects_macos_universal2_as_rust_target():
         ),
     ],
 )
-def test_wheel_tag_uses_packaging_tags(monkeypatch: pytest.MonkeyPatch, kwargs: dict[str, object], expected: str):
+def test_wheel_tag_uses_packaging_tags(monkeypatch: pytest.MonkeyPatch, kwargs: dict[str, Any], expected: str):
     monkeypatch.delenv("AUDITWHEEL_PLAT", raising=False)
     kwargs_copy = dict(kwargs)
     python_version = kwargs_copy.pop("python_version", (3, 11))
@@ -228,6 +230,14 @@ def test_python_extension_name_rejects_abi3_free_threaded_before_python_315(pyth
         )
 
 
+@pytest.mark.parametrize("config", [{"module": "project"}, {"module": "project", "path": None}])
+def test_build_plan_defaults_to_working_directory(tmp_path, monkeypatch, config):
+    monkeypatch.chdir(tmp_path)
+    plan = HatchRustBuildPlan(**config)
+    plan.generate()
+    assert plan.cargo_invocations[0].cwd == tmp_path
+
+
 def test_build_plan_copies_emscripten_python_extension(tmp_path):
     plan = HatchRustBuildPlan(
         module="project",
@@ -386,7 +396,7 @@ def test_build_plan_does_not_disable_crt_static_for_musl_executable(tmp_path):
 
 
 @pytest.mark.parametrize("cargo_target_kind", ["test", "bench"])
-def test_build_plan_handles_test_and_bench_as_executables(tmp_path, cargo_target_kind: str):
+def test_build_plan_handles_test_and_bench_as_executables(tmp_path, cargo_target_kind: CargoTargetKind):
     plan = HatchRustBuildPlan(
         module="project",
         path=tmp_path,
diff --git a/pyproject.toml b/pyproject.toml
index de55eda..c94b924 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,6 +48,7 @@ develop = [
     "editables",
     "hatchling",
     "mdformat",
+    "mdformat-frontmatter",
     "mdformat-tables>=1",
     "pip",
     "pytest",
@@ -88,7 +89,7 @@ replace = 'version = "{new_version}"'
 [tool.coverage.run]
 branch = false
 omit = [
-    "hatch_rs/tests/integration/",
+    "hatch_rs/tests/integration/*",
 ]
 
 [tool.coverage.report]