diff --git a/.github/actions/OS_setup/action.yml b/.github/actions/OS_setup/action.yml
new file mode 100644
index 00000000..c1cc9470
--- /dev/null
+++ b/.github/actions/OS_setup/action.yml
@@ -0,0 +1,58 @@
+name: OS-setup
+description: 'Setup requested OS and python environment'
+inputs:
+  OS:
+    description: OS for test
+    required: true
+    default: 'Ubuntu'
+  python-version:
+    description: python version for test
+    required: true
+    default: '3.8'
+  sympy-version:
+    description: sympy version for test
+    required: true
+    default: 'sympy'
+
+
+runs:
+  using: "composite"
+  steps:
+  - uses: actions/setup-python@v3
+    with:
+      python-version: ${{ inputs.python-version }}
+  - if: inputs.OS == 'ubuntu'
+    run: |
+      # use apt-spy2 to select closest apt mirror,
+      # which helps avoid connectivity issues in Azure;
+      # see https://github.com/actions/virtual-environments/issues/675
+      sudo gem install apt-spy2
+      sudo apt-spy2 fix --commit --launchpad --country=US
+      # after selecting a specific mirror, we need to run 'apt-get update'
+      sudo apt-get update
+      sudo apt-get install -y texlive-latex-base colordiff pandoc ffmpeg
+    shell: bash
+  - run: |
+      python -m pip install --upgrade pip setuptools
+      python -m pip install --upgrade nbconvert
+      python -m pip install testfixtures ${{ inputs.sympy-version }} mpmath jupyter matplotlib scipy nrpylatex
+      if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    shell: bash
+
+#
+#ubuntu 22
+#  JupdevSymPy:
+#        python -m pip install --upgrade git+https://github.com/sympy/sympy/
+#        python -m pip install testfixtures mpmath jupyter matplotlib scipy nrpylatex
+#
+#  UnitTestdevSymPy:
+#        sudo apt-get install -y texlive-latex-base colordiff pandoc
+#        python -m pip install --upgrade git+https://github.com/sympy/sympy/
+#        python -m pip install testfixtures mpmath jupyter matplotlib scipy nrpylatex
+#
+#ubuntu 20
+#  coreJupdevSymPy:
+#    - name: Install dependencies
+#      run: |
+#        python -m pip install --upgrade git+https://github.com/sympy/sympy/
+#        python -m pip install testfixtures mpmath jupyter matplotlib scipy nrpylatex
diff --git a/.github/workflows/github-actions-MacOS12.yml b/.github/workflows/github-actions-MacOS12.yml
index 5939256f..420643d9 100644
--- a/.github/workflows/github-actions-MacOS12.yml
+++ b/.github/workflows/github-actions-MacOS12.yml
@@ -17,16 +17,12 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+    - name: Setup OS and python environment
+      uses: ./.github/actions/OS_setup
       with:
+        OS: 'Mac'
         python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        python -m pip install --upgrade nbconvert
-        python -m pip install testfixtures sympy mpmath jupyter matplotlib scipy nrpylatex
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        sympy-version: 'sympy'
     - name: UnitTests
       run: |
         ./UnitTesting/run_NRPy_UnitTests.sh python3
diff --git a/.github/workflows/github-actions-ubuntu20.yml b/.github/workflows/github-actions-ubuntu20.yml
index 2db0bd34..47bce760 100644
--- a/.github/workflows/github-actions-ubuntu20.yml
+++ b/.github/workflows/github-actions-ubuntu20.yml
@@ -18,26 +18,12 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+    - name: Setup OS and python environment
+      uses: ./.github/actions/OS_setup
       with:
+        OS: 'ubuntu'
         python-version: ${{ matrix.python-version }}
-    - name: Install needed ubuntu packages
-      run: |
-        # use apt-spy2 to select closest apt mirror,
-        # which helps avoid connectivity issues in Azure;
-        # see https://github.com/actions/virtual-environments/issues/675
-        sudo gem install apt-spy2
-        sudo apt-spy2 fix --commit --launchpad --country=US
-        # after selecting a specific mirror, we need to run 'apt-get update'
-        sudo apt-get update
-        sudo apt-get install -y texlive-latex-base colordiff pandoc ffmpeg
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        python -m pip install --upgrade nbconvert
-        python -m pip install testfixtures ${{ matrix.sympy-version }} mpmath jupyter matplotlib scipy nrpylatex
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        sympy-version: ${{ matrix.sympy-version }}
     - name: Core Jupyter notebook testsuite
       run: |
         ./UnitTesting/core_Jupyter_notebook_testsuite.sh
@@ -89,26 +75,12 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+    - name: Setup OS and python environment
+      uses: ./.github/actions/OS_setup
       with:
+        OS: 'ubuntu'
         python-version: ${{ matrix.python-version }}
-    - name: Install needed ubuntu packages
-      run: |
-        # use apt-spy2 to select closest apt mirror,
-        # which helps avoid connectivity issues in Azure;
-        # see https://github.com/actions/virtual-environments/issues/675
-        sudo gem install apt-spy2
-        sudo apt-spy2 fix --commit --launchpad --country=US
-        # after selecting a specific mirror, we need to run 'apt-get update'
-        sudo apt-get update
-        sudo apt-get install -y texlive-latex-base colordiff pandoc ffmpeg
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        python -m pip install --upgrade nbconvert
-        python -m pip install testfixtures ${{ matrix.sympy-version }} mpmath jupyter matplotlib scipy nrpylatex
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        sympy-version: ${{ matrix.sympy-version }}
     - name: UnitTests
       run: |
         ./UnitTesting/run_NRPy_UnitTests.sh python
diff --git a/.github/workflows/github-actions-ubuntu22.yml b/.github/workflows/github-actions-ubuntu22.yml
index d4368250..552119a4 100644
--- a/.github/workflows/github-actions-ubuntu22.yml
+++ b/.github/workflows/github-actions-ubuntu22.yml
@@ -53,26 +53,12 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+    - name: Setup OS and python environment
+      uses: ./.github/actions/OS_setup
       with:
+        OS: 'ubuntu'
         python-version: ${{ matrix.python-version }}
-    - name: Install needed ubuntu packages
-      run: |
-        # use apt-spy2 to select closest apt mirror,
-        # which helps avoid connectivity issues in Azure;
-        # see https://github.com/actions/virtual-environments/issues/675
-        sudo gem install apt-spy2
-        sudo apt-spy2 fix --commit --launchpad --country=US
-        # after selecting a specific mirror, we need to run 'apt-get update'
-        sudo apt-get update
-        sudo apt-get install -y texlive-latex-base colordiff pandoc ffmpeg
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        python -m pip install --upgrade nbconvert
-        python -m pip install testfixtures sympy mpmath jupyter matplotlib scipy nrpylatex
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        sympy-version: 'sympy'
     - name: Core Jupyter notebook testsuite
       run: |
         ./UnitTesting/core_Jupyter_notebook_testsuite.sh
diff --git a/.github/workflows/github-actions-windows2022.yml b/.github/workflows/github-actions-windows2022.yml
index f75506a2..258c1beb 100644
--- a/.github/workflows/github-actions-windows2022.yml
+++ b/.github/workflows/github-actions-windows2022.yml
@@ -17,19 +17,16 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+    - name: Setup OS and python environment
+      uses: ./.github/actions/OS_setup
       with:
+        OS: 'Windows'
         python-version: ${{ matrix.python-version }}
+        sympy-version: 'sympy'
     # - name: Brew install needed TeX packages (for pdflatex)
     #   run: |
     #     choco install texlive
     #     choco install ffmpeg pandoc
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        python -m pip install --upgrade nbconvert
-        python -m pip install testfixtures sympy mpmath jupyter matplotlib scipy nrpylatex
     - name: Core Jupyter notebook testsuite
       run: |
         bash ./UnitTesting/run_NRPy_UnitTests.sh python3