diff --git a/justfile b/justfile
index f44f968..3d3b79f 100755
--- a/justfile
+++ b/justfile
@@ -83,13 +83,13 @@ test_shfmt:
     @find . -type f \( -name "**.sh" -and -not -path "./.**" -and -not -path "./venv**" \) -exec shfmt -d -i 4 -bn -ci -sr "{}" \+;
 
 test_black:
-    @python3 -m black --check --diff .
+    @python3 -m black --check --diff netbox_qrgen/
 
 test_pyright:
-    @python3 -m pyright .
+    @python3 -m pyright netbox_qrgen/
 
 test_ruff:
-    @python3 -m ruff --diff .
+    @python3 -m ruff --diff netbox_qrgen/
 
 test_ci_conf:
     @woodpecker-cli lint .woodpecker/
diff --git a/lefthook.yml b/lefthook.yml
new file mode 100644
index 0000000..4ffe87f
--- /dev/null
+++ b/lefthook.yml
@@ -0,0 +1,10 @@
+pre-commit:
+  commands:
+    01_ruff:
+      stage_fixed: true
+      glob: "*.py"
+      run: python3 -m ruff --fix-only --exit-zero --silent {all_files}
+    02_black:
+      stage_fixed: true
+      glob: "*.py"
+      run: python3 -m black --quiet {all_files}