diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d23aab8..43b9e82 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -5,3 +5,7 @@ repos:
       - id: ruff
         args: [ --fix, --select, I ]
       - id: ruff-format
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.10.0
+    hooks:
+      - id: mypy
diff --git a/teufa/__init__.py b/teufa/__init__.py
new file mode 100644
index 0000000..e69de29