diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 00000000..94cf9875
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,32 @@
+name: "Publish"
+
+on:
+  push:
+    tags:
+      # Publish on any tag starting with a `v`, e.g., v0.1.0
+      - v*
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
+      - name: Install Python 3.12
+        run: uv python install 3.12
+      - name: Build
+        run: uv build
+      # Check that basic features work and we didn't miss to include crucial files
+      - name: Smoke test (wheel)
+        run: uv run --isolated --no-project --with dist/*.whl tests/smoke_test.py
+      - name: Smoke test (source distribution)
+        run: uv run --isolated --no-project --with dist/*.tar.gz tests/smoke_test.py
+      - name: Publish
+        run: uv publish
diff --git a/temoa/__about__.py b/temoa/__about__.py
index a8b1a2f0..7afb01ef 100644
--- a/temoa/__about__.py
+++ b/temoa/__about__.py
@@ -1,6 +1,6 @@
 import re
 
-__version__ = '4.0.0a1.dev20251201'
+__version__ = '4.0.0a1'
 
 # Parse the version string to get major and minor versions
 # We use a regex to be robust against versions like "4.1a1" or "4.0.0.dev1"
diff --git a/tests/smoke_test.py b/tests/smoke_test.py
new file mode 100644
index 00000000..d1b1e6a0
--- /dev/null
+++ b/tests/smoke_test.py
@@ -0,0 +1,31 @@
+import subprocess
+import sys
+import temoa
+
+def test_import() -> None:
+    print(f"Importing temoa version: {temoa.__version__}")
+    assert temoa.__version__ is not None
+
+def test_cli() -> None:
+    print("Running temoa --version CLI command...")
+    result = subprocess.run(["temoa", "--version"], capture_output=True, text=True)
+    print(f"CLI output: {result.stdout.strip()}")
+    assert result.returncode == 0
+    assert "Temoa Version:" in result.stdout
+    assert temoa.__version__ in result.stdout
+
+def test_help() -> None:
+    print("Running temoa --help CLI command...")
+    result = subprocess.run(["temoa", "--help"], capture_output=True, text=True)
+    assert result.returncode == 0
+    assert "The Temoa Project" in result.stdout
+
+if __name__ == "__main__":
+    try:
+        test_import()
+        test_cli()
+        test_help()
+        print("\n✅ Smoke test passed!")
+    except Exception as e:
+        print(f"\n❌ Smoke test failed: {e}")
+        sys.exit(1)