diff --git a/README.md b/README.md
index 7552587..ddc7e8b 100644
--- a/README.md
+++ b/README.md
@@ -330,6 +330,19 @@ autofix-args = [".", "--profile black"]
 
 [tool.stew.ci.custom-runners.pytest]
 check-args = ["--tb=long", "--junitxml=.ci/pytest-results.xml"]
+
+# using `executable`, you can create multiple custom runners with the same executable:
+[tool.stew.ci.custom-runners.ruff-check]
+executable = "ruff"
+working-directory = "project"
+check-args = ["check", "."]
+autofix-args = [ "check", "--fix", "."]
+
+[tool.stew.ci.custom-runners.ruff-format]
+executable = "ruff"
+working-directory = "project"
+check-args = ["format", "--check", "."]
+autofix-args = ["format", "."]
 ```
 
 When a builtin runner such as pytest is redefined as a custom runner, you must provide all the arguments.
@@ -338,15 +351,16 @@ In this case, not passing `--junitxml` would mean that we lose the report that u
 
 ### Options
 
-The following options are supported for custom runners:
-
-- name: You can specify the module name if it differs from the name of the tool.
-  - Important: Runners are called through `python -m <name>`, not through the shell!
+- executable: You can specify the executable name if it's different from the tool's name.
+  - Runners are called through `python -m <executable>` first to see if it's installed in the virtual environment, else through the shell.
+  - Using `executable`, you can create multiple custom runners with the same executable (e.g.: `ruff check` vs `ruff format`) 
 - check-args: The arguments to invoke the check.
 - autofix-args: The arguments to invoke the autofix. Provide the empty string "" in order to run without arguments.
 - check-failed-exit-codes: A list of ints denoting the exit codes to consider "failed" (anything else will be "error"). 0 is always a success. default is `[1]`.
 - create-generic-report: Whether to create a generic pass/fail JUnit report for this check.
 - working-directory: The default is "project" which corresponds to the project's `pyproject.toml` file. You can change it to "repository" in order to run from the root.
+- name: You can specify the module name if it differs from the name of the tool.
+  - Deprecated: name must be unique. This has been replaced by `executable`. 
 
 The `args` and `check-args` can be:
 
diff --git a/coveo_stew/ci/any_runner.py b/coveo_stew/ci/any_runner.py
index 880dc29..a512c7d 100644
--- a/coveo_stew/ci/any_runner.py
+++ b/coveo_stew/ci/any_runner.py
@@ -34,6 +34,7 @@ def __init__(
         working_directory: str = "project",
         check_args: Optional[Union[str, List[str]]] = None,
         autofix_args: Optional[Union[str, List[str]]] = None,
+        executable: Optional[str] = None,
         _pyproject: PythonProject,
     ) -> None:
         if args and check_args:
@@ -47,6 +48,7 @@ def __init__(
 
         super().__init__(_pyproject=_pyproject)
         self._name = name
+        self._executable = executable
         self.check_failed_exit_codes = check_failed_exit_codes
         self.outputs_own_report = not create_generic_report
         self.check_args = [] if check_args is None else check_args
@@ -68,7 +70,7 @@ def __init__(
 
     async def _launch(self, environment: PythonEnvironment, *extra_args: str) -> RunnerStatus:
         args = [self.check_args] if isinstance(self.check_args, str) else self.check_args
-        command = environment.build_command(self.name, *args)
+        command = environment.build_command(self.executable, *args)
 
         working_directory = self._pyproject.project_path
         if self.working_directory is WorkingDirectoryKind.Repository:
@@ -91,9 +93,13 @@ async def _launch(self, environment: PythonEnvironment, *extra_args: str) -> Run
     def name(self) -> str:
         return self._name
 
+    @property
+    def executable(self) -> str:
+        return self._executable or self.name
+
     async def _custom_autofix(self, environment: PythonEnvironment) -> None:
         args = [self.autofix_args] if isinstance(self.autofix_args, str) else self.autofix_args
-        command = environment.build_command(self.name, *args)
+        command = environment.build_command(self.executable, *args)
 
         working_directory = self._pyproject.project_path
         if self.working_directory is WorkingDirectoryKind.Repository:
diff --git a/coveo_stew/ci/config.py b/coveo_stew/ci/config.py
index ea5c315..2b10cb9 100644
--- a/coveo_stew/ci/config.py
+++ b/coveo_stew/ci/config.py
@@ -90,7 +90,10 @@ def get_runner(self, runner_name: str) -> Optional[ContinuousIntegrationRunner]:
         return self._runners.get(runner_name)
 
     def _generate_ci_plans(
-        self, checks: Optional[List[str]], skips: Optional[List[str]], parallel: bool = True
+        self,
+        checks: Optional[List[str]],
+        skips: Optional[List[str]],
+        parallel: bool = True,
     ) -> Generator[CIPlan, None, None]:
         """Generates one test plan per environment."""
         checks = [check.lower() for check in checks] if checks else []
@@ -130,7 +133,11 @@ async def launch_continuous_integration(
             generate_github_step_report(ci_plans)
 
         statuses = set(check.status for plan in ci_plans for check in plan.checks)
-        for status in (RunnerStatus.Error, RunnerStatus.CheckFailed, RunnerStatus.Success):
+        for status in (
+            RunnerStatus.Error,
+            RunnerStatus.CheckFailed,
+            RunnerStatus.Success,
+        ):
             if status in statuses:
                 return status
 
diff --git a/coveo_stew/ci/poetry_runners.py b/coveo_stew/ci/poetry_runners.py
index a9396a5..e4a022c 100644
--- a/coveo_stew/ci/poetry_runners.py
+++ b/coveo_stew/ci/poetry_runners.py
@@ -12,6 +12,6 @@ class PoetryCheckRunner(ContinuousIntegrationRunner):
     async def _launch(self, environment: PythonEnvironment, *extra_args: str) -> RunnerStatus:
         await async_check_output(
             *environment.build_command(PythonTool.Poetry, "check"),
-            working_directory=self._pyproject.project_path
+            working_directory=self._pyproject.project_path,
         )
         return RunnerStatus.Success
diff --git a/coveo_stew/ci/runner.py b/coveo_stew/ci/runner.py
index 9655027..052ea70 100644
--- a/coveo_stew/ci/runner.py
+++ b/coveo_stew/ci/runner.py
@@ -35,7 +35,10 @@ def project(self) -> PythonProject:
         return self._pyproject
 
     async def launch(
-        self, environment: PythonEnvironment = None, *extra_args: str, auto_fix: bool = False
+        self,
+        environment: PythonEnvironment = None,
+        *extra_args: str,
+        auto_fix: bool = False,
     ) -> "ContinuousIntegrationRunner":
         """
         Launch the runner's checks.
@@ -118,7 +121,8 @@ def _output_generic_report(self, environment: PythonEnvironment) -> None:
         test_case = TestCase(self.name, classname=f"ci.{self._pyproject.package.name}")
         if self.status is RunnerStatus.Error:
             test_case.add_error_info(
-                "An error occurred, the test was unable to complete.", self.last_output()
+                "An error occurred, the test was unable to complete.",
+                self.last_output(),
             )
         elif self.status is RunnerStatus.CheckFailed:
             test_case.add_failure_info("The test completed; errors were found.", self.last_output())
@@ -197,7 +201,9 @@ class Run:
     checks: Sequence[ContinuousIntegrationRunner]
 
     @cached_property
-    def exceptions(self) -> List[Tuple[ContinuousIntegrationRunner, DetailedCalledProcessError]]:
+    def exceptions(
+        self,
+    ) -> List[Tuple[ContinuousIntegrationRunner, DetailedCalledProcessError]]:
         """Exceptions are stored here after the run. Exceptions are cleared when `run_and_report` is called."""
         return []
 
@@ -224,7 +230,8 @@ async def run_and_report(
         else:
             for runner in self.checks:
                 self._report(
-                    await runner.launch(self.environment, auto_fix=auto_fix), feedback=feedback
+                    await runner.launch(self.environment, auto_fix=auto_fix),
+                    feedback=feedback,
                 )
 
         if self.exceptions:
diff --git a/coveo_stew/discovery.py b/coveo_stew/discovery.py
index c6906f2..dd2d6cd 100644
--- a/coveo_stew/discovery.py
+++ b/coveo_stew/discovery.py
@@ -14,7 +14,8 @@
 def find_pyproject(project_name: str, path: Path = None, *, verbose: bool = False) -> PythonProject:
     """Find a python project in path using the exact project name"""
     project = next(
-        discover_pyprojects(path, query=project_name, exact_match=True, verbose=verbose), None
+        discover_pyprojects(path, query=project_name, exact_match=True, verbose=verbose),
+        None,
     )
     if not project:
         raise PythonProjectNotFound(f"{project_name} cannot be found in {path}")
diff --git a/coveo_stew/metadata/poetry_api.py b/coveo_stew/metadata/poetry_api.py
index ea60ca4..cf935f3 100644
--- a/coveo_stew/metadata/poetry_api.py
+++ b/coveo_stew/metadata/poetry_api.py
@@ -89,7 +89,7 @@ def all_dependencies(self) -> Mapping[str, Dependency]:
 
 
 def dependencies_factory(
-    dependencies: Mapping[str, Union[str, dict]] = None
+    dependencies: Mapping[str, Union[str, dict]] = None,
 ) -> Dict[str, Dependency]:
     """Transforms a poetry dependency section (such as tool.poetry.dev-dependencies) into Dependency instances."""
     return (
diff --git a/coveo_stew/metadata/stew_api.py b/coveo_stew/metadata/stew_api.py
index 6be5357..4ebca69 100644
--- a/coveo_stew/metadata/stew_api.py
+++ b/coveo_stew/metadata/stew_api.py
@@ -12,7 +12,7 @@ def __init__(
         build: bool = False,
         build_without_hashes: bool = False,
         pydev: bool = False,
-        build_dependencies: Mapping[str, Any] = None
+        build_dependencies: Mapping[str, Any] = None,
     ) -> None:
         self.build = build  # we won't build a project unless this is specified.
         # poetry sometimes fail at getting hashes, in which case the export cannot work because pip will complain
diff --git a/coveo_stew/offline_publish.py b/coveo_stew/offline_publish.py
index 2b300d6..8b0f0a5 100644
--- a/coveo_stew/offline_publish.py
+++ b/coveo_stew/offline_publish.py
@@ -113,8 +113,9 @@ def _store_dependencies_in_wheelhouse(self, project: Optional[PythonProject] = N
         lines: List[str] = []
         for requirement in project.export().splitlines():
             if match := LOCAL_REQUIREMENT_PATTERN.match(requirement):
-                dependency_name, dependency_location = match["library_name"].strip(), Path(
-                    match["path"].strip()
+                dependency_name, dependency_location = (
+                    match["library_name"].strip(),
+                    Path(match["path"].strip()),
                 )
                 # this is a local dependency. Since poetry locks all transitive dependencies,
                 # we're only interested in the setup dependencies and the local dependency.
diff --git a/coveo_stew/pydev.py b/coveo_stew/pydev.py
index f37a0a6..181a853 100644
--- a/coveo_stew/pydev.py
+++ b/coveo_stew/pydev.py
@@ -101,7 +101,8 @@ def _dev_dependencies_of_dependencies(
             if dev_dependency.is_local:
                 value: Any = tomlkit.inline_table()
                 value.append(
-                    "path", str(dev_dependency.path.relative_to(local_project.project_path))
+                    "path",
+                    str(dev_dependency.path.relative_to(local_project.project_path)),
                 )
             else:
                 value = dev_dependency.version
diff --git a/coveo_stew/stew.py b/coveo_stew/stew.py
index ef3cec4..95168ae 100644
--- a/coveo_stew/stew.py
+++ b/coveo_stew/stew.py
@@ -162,7 +162,9 @@ def activated_environment(self) -> Optional[PythonEnvironment]:
         )
 
     def virtual_environments(
-        self, *, create_default_if_missing: Union[bool, EnvironmentCreationBehavior] = False
+        self,
+        *,
+        create_default_if_missing: Union[bool, EnvironmentCreationBehavior] = False,
     ) -> Iterator[PythonEnvironment]:
         """The project's virtual environments. These are cached for performance.
 
@@ -211,8 +213,9 @@ def _get_virtual_environment_paths(self) -> Iterator[Tuple[Path, bool]]:
             if (stripped := str_path.strip()) and (
                 match := re.fullmatch(ENVIRONMENT_PATH_PATTERN, stripped)
             ):
-                yield Path(match.groupdict()["path"].strip()), bool(
-                    match.groupdict().get("activated")
+                yield (
+                    Path(match.groupdict()["path"].strip()),
+                    bool(match.groupdict().get("activated")),
                 )
 
     def current_environment_belongs_to_project(self) -> bool:
diff --git a/test_coveo_stew/test_backward_compatibility.py b/test_coveo_stew/test_backward_compatibility.py
index b37fbbd..9c2a303 100644
--- a/test_coveo_stew/test_backward_compatibility.py
+++ b/test_coveo_stew/test_backward_compatibility.py
@@ -27,7 +27,8 @@
 )
 def test_get_verb(poetry_version: str, verb: str, expected_verb: str) -> None:
     with mock.patch(
-        *ref(find_poetry_version, context=get_verb), return_value=Version(poetry_version)
+        *ref(find_poetry_version, context=get_verb),
+        return_value=Version(poetry_version),
     ):
         get_verb.cache_clear()
         assert get_verb(verb, None) == expected_verb
diff --git a/test_coveo_stew/test_pyproject.py b/test_coveo_stew/test_pyproject.py
index 5cb453b..edf75a2 100644
--- a/test_coveo_stew/test_pyproject.py
+++ b/test_coveo_stew/test_pyproject.py
@@ -26,7 +26,9 @@ def test_pyproject_mock_initial_state(pyproject_mock: PythonProject) -> None:
 
 
 @Integration
-def test_pyproject_mock_initial_state_integration(pyproject_mock: PythonProject) -> None:
+def test_pyproject_mock_initial_state_integration(
+    pyproject_mock: PythonProject,
+) -> None:
     assert not pyproject_mock.lock_is_outdated()
 
 
diff --git a/test_coveo_stew/test_stew_ci.py b/test_coveo_stew/test_stew_ci.py
index d9b9b26..166042b 100644
--- a/test_coveo_stew/test_stew_ci.py
+++ b/test_coveo_stew/test_stew_ci.py
@@ -322,7 +322,10 @@ def write_code(project: PythonProject, code: str) -> Generator[None, None, None]
 @parametrize(
     ("check", "failure_text"),
     [
-        ("mypy", 'error: Argument 1 to "fn" has incompatible type "int"; expected "str"'),
+        (
+            "mypy",
+            'error: Argument 1 to "fn" has incompatible type "int"; expected "str"',
+        ),
         ("isort", "Imports are incorrectly sorted and/or formatted."),
         ("black", f"would reformat mock_linter_errors{os.sep}code.py"),
     ],