diff --git a/.github/workflows/python-release.yml b/.github/workflows/python-release.yml
new file mode 100644
index 0000000..ccc5115
--- /dev/null
+++ b/.github/workflows/python-release.yml
@@ -0,0 +1,46 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+'
+
+permissions:
+  contents: write
+
+jobs:
+  release-win:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v3
+        with:  # Latest Windows 7 compatible binary release from python.org
+          python-version: "3.8.10"
+          architecture: x86
+      - run: python -m unittest -v
+      - name: Install packaging dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pyinstaller
+      - run: .\build.bat
+      - uses: softprops/action-gh-release@v1
+        with:
+          files: "dist/*"
+          # draft: true
+          fail_on_unmatched_files: true
+  release-mac:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v3
+      - run: python -m unittest -v
+      - name: Install packaging dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pyinstaller
+      - run: ./build_osx.sh
+      - uses: softprops/action-gh-release@v1
+        with:
+          files: "dist/*"
+          # draft: true
+          fail_on_unmatched_files: true
diff --git a/.github/workflows/python-unittest.yml b/.github/workflows/python-unittest.yml
new file mode 100644
index 0000000..b417e88
--- /dev/null
+++ b/.github/workflows/python-unittest.yml
@@ -0,0 +1,26 @@
+name: Unittests
+
+on:
+  push:
+    branches: ["master"]
+  pull_request:
+    branches: ["master"]
+
+permissions:
+  contents: read
+
+jobs:
+  unittest:
+
+    runs-on: ubuntu-20.04  # Versions =< 3.8.11 not awailable for ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8.10", "3"]  # 3.8.10 for Windows 7
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - run: python -m unittest -v
diff --git a/pyproject.toml b/pyproject.toml
index 3270007..c025535 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dev = [
 version = {attr = "heval.__version__"}
 
 [project.urls]
-Homepage = "https://github.com/radioxoma/heval"
+homepage = "https://github.com/radioxoma/heval"
 
 [project.gui-scripts]
 heval = "heval.__main__:main"
diff --git a/tests/test_doctest.py b/tests/test_doctest.py
index 334b8e7..6eb04fa 100644
--- a/tests/test_doctest.py
+++ b/tests/test_doctest.py
@@ -1,12 +1,14 @@
 #!/usr/bin/env python
 
 import doctest
+import unittest
 
 from heval import abg, drugs, electrolytes, human, nutrition
 
-DOCTESTS = (abg, drugs, electrolytes, human, nutrition)
+modules = (abg, drugs, electrolytes, human, nutrition)
 
 
-def load_tests(loader, tests, ignore):
-    tests.addTests([doctest.DocTestSuite(t) for t in DOCTESTS])
+def load_tests(loader: unittest.TestLoader, tests, pattern) -> unittest.TestSuite:
+    """Callback to load doctests from modules."""
+    tests.addTests([doctest.DocTestSuite(m) for m in modules])
     return tests