diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 76b6096..74e3b62 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,10 +23,12 @@ jobs:
         with:
           submodules: true
           fetch-depth: 1
-      - name: Install ruff for linting
-        run: pip install ruff
+      - name: Install requirements for linting
+        run: pip install -r requirements-dev.txt
       - name: Lint
-        run: ruff check calibre-plugin
+        run: sh lint.sh
+      # - name: Run tests
+      # run: python -m unittest -v tests
       - name: Install gtext
         run: sudo apt-get -y install gettext
       - name: Generate commit.txt and build .mo files
diff --git a/.mypy.ini b/.mypy.ini
new file mode 100644
index 0000000..05c2ef0
--- /dev/null
+++ b/.mypy.ini
@@ -0,0 +1,29 @@
+[mypy]
+disable_error_code = has-type, annotation-unchecked
+
+[mypy-calibre.*]
+ignore_missing_imports = True
+
+[mypy-qt.*]
+ignore_missing_imports = True
+
+[mypy-polyglot.*]
+ignore_missing_imports = True
+
+[mypy-bs4.*]
+ignore_missing_imports = True
+
+[mypy-lxml.*]
+ignore_missing_imports = True
+
+[mypy-calibre_plugins.*]
+ignore_missing_imports = True
+
+[mypy-calibre-plugin.overdrive.*]
+ignore_errors = True
+
+[mypy-calibre-plugin.libby.*]
+ignore_errors = True
+
+[mypy-calibre-plugin.mutagen.*]
+ignore_errors = True
diff --git a/lint.sh b/lint.sh
new file mode 100644
index 0000000..3cad251
--- /dev/null
+++ b/lint.sh
@@ -0,0 +1,2 @@
+ruff check calibre-plugin
+mypy --package calibre-plugin
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..4473938
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,2 @@
+ruff
+mypy