diff --git a/.github/workflows/dummy.yml b/.github/workflows/dummy.yml
new file mode 100644
index 0000000..5d12273
--- /dev/null
+++ b/.github/workflows/dummy.yml
@@ -0,0 +1,11 @@
+name: Dummy workflow
+
+on:
+  workflow_dispatch:
+
+jobs:
+  dummy:
+    runs-on: ubuntu-latest
+    steps:
+      - run: env | grep ^GITHUB
+      - run: echo $GITHUB_REF
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..12843ed
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,19 @@
+name: Linter & formatter
+
+on:
+  workflow_dispatch:
+  pull_request:
+
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run linter
+        uses: chartboost/ruff-action@v1
+        with:
+          args: check
+      - name: Run formatter
+        uses: chartboost/ruff-action@v1
+        with:
+          args: format --check
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..7acc7a5
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,29 @@
+name: Package tests
+
+on:
+  workflow_dispatch:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.10"]
+        torch-version: ["1.12", "2.0"]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools
+          pip install pytest
+          pip install torch==${{ matrix.torch-version }} --extra-index-url https://download.pytorch.org/whl/cpu
+          pip install .
+      - name: Test with pytest
+        run: pytest tests
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
deleted file mode 100644
index 928ef10..0000000
--- a/.github/workflows/tests.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-name: Package tests
-
-on:
-  workflow_dispatch:
-  pull_request:
-    branches:
-      - master
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.8", "3.10"]
-        torch-version: ["1.12", "2.0"]
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        pip install pytest
-        pip install torch==${{ matrix.torch-version }} --extra-index-url https://download.pytorch.org/whl/cpu
-        pip install .
-    - name: Test with pytest
-      run: pytest tests