diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..72d41f1
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,26 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: 1.8.3
+          virtualenvs-create: false
+      - name: Install dependencies
+        run: poetry install
+      - name: Run tests
+        run: pytest
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 42df9cb..29c6f72 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,7 +1,9 @@
-name: Build and publish on PyPI
+name: Build and publish on PyPI (disabled)
 
+# Disabled automatic triggers to prevent publishing to PyPI. To run manually,
+# trigger the workflow via "Run workflow" in the GitHub UI.
 on:
-  push
+  workflow_dispatch:
 
 jobs:
   tests:
diff --git a/pyproject.toml b/pyproject.toml
index 6e09cf9..be43587 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,10 +41,13 @@ line-length = 120
 [tool.isort]
 line_length = 120
 profile = "black"
+[tool.pytest.ini_options]
+pythonpath = ["."]
+
 [build-system]
 requires = ["poetry-core>=1.0.8"]
 build-backend = "poetry.core.masonry.api"
 [project.urls]
 Homepage = "https://github.com/Bl3f/yato"
 Repository = "https://github.com/Bl3f/yato"
-Issues = "https://github.com/Bl3f/yato/issues"
\ No newline at end of file
+Issues = "https://github.com/Bl3f/yato/issues"