First run at github workflows

.github/workflows/test-os.yml

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+name: "Test: Windows, macOS, Linux"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  run-tests:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ["windows-latest", "macos-latest", "ubuntu-latest"]
+
+    steps:
+
+    - uses: actions/checkout@v3
+
+    - name: Set up Python 3.11
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.11"
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install poetry
+        poetry install
+
+    - name: Test with pytest
+      run: |
+        poetry run pytest

.github/workflows/test-python.yml

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+name: "Test: Py 3.9-3.11"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  run-tests:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
+
+    steps:
+
+    - uses: actions/checkout@v3
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install poetry
+        poetry install
+
+    - name: Test with pytest
+      run: |
+        poetry run pytest