diff --git a/.github/workflows/ci.yml b/.github/workflows/ci_cuboid.yml
similarity index 90%
rename from .github/workflows/ci.yml
rename to .github/workflows/ci_cuboid.yml
index 1adc00c..e4caf37 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci_cuboid.yml
@@ -1,5 +1,5 @@
 
-name: CI with install
+name: Cuboid
 
 on:
   pull_request:
@@ -27,4 +27,4 @@ jobs:
 
       - name: Run tests
         run: |
-          pytest tests
+          pytest tests/test_csg_cad_sphere.py
diff --git a/.github/workflows/ci_sphere.yml b/.github/workflows/ci_sphere.yml
new file mode 100644
index 0000000..93fd8d1
--- /dev/null
+++ b/.github/workflows/ci_sphere.yml
@@ -0,0 +1,30 @@
+
+name: sphere
+
+on:
+  pull_request:
+    branches:
+      - develop
+      - main
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+    container:
+      image: continuumio/miniconda3
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: install dependencies
+        run: |
+          conda install -c conda-forge mamba
+          mamba install -c cadquery -c conda-forge moab gmsh python-gmsh cadquery=master -y
+
+      - name: install package with tests
+        run: |
+          pip install .
+
+      - name: Run tests
+        run: |
+          pytest tests/test_csg_cad_sphere.py
diff --git a/.github/workflows/ci_sphericalshell.yml b/.github/workflows/ci_sphericalshell.yml
new file mode 100644
index 0000000..099078b
--- /dev/null
+++ b/.github/workflows/ci_sphericalshell.yml
@@ -0,0 +1,30 @@
+
+name: spherical shell
+
+on:
+  pull_request:
+    branches:
+      - develop
+      - main
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+    container:
+      image: continuumio/miniconda3
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: install dependencies
+        run: |
+          conda install -c conda-forge mamba
+          mamba install -c cadquery -c conda-forge moab gmsh python-gmsh cadquery=master -y
+
+      - name: install package with tests
+        run: |
+          pip install .
+
+      - name: Run tests
+        run: |
+          pytest tests/test_csg_cad_sphericalshell.py
diff --git a/.github/workflows/ci_two_touching_cuboids.yml b/.github/workflows/ci_two_touching_cuboids.yml
new file mode 100644
index 0000000..6ffda6e
--- /dev/null
+++ b/.github/workflows/ci_two_touching_cuboids.yml
@@ -0,0 +1,30 @@
+
+name: two touching cuboids
+
+on:
+  pull_request:
+    branches:
+      - develop
+      - main
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+    container:
+      image: continuumio/miniconda3
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: install dependencies
+        run: |
+          conda install -c conda-forge mamba
+          mamba install -c cadquery -c conda-forge moab gmsh python-gmsh cadquery=master -y
+
+      - name: install package with tests
+        run: |
+          pip install .
+
+      - name: Run tests
+        run: |
+          pytest tests/test_csg_cad_two_touching_cuboids.py