diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e471f434..bb3a5a1c 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -8,14 +8,13 @@ on:
 
 jobs:
   run_tests:
-
     runs-on:           ubuntu-latest
-
     steps:
+      # - name:          free disk space
+      #   uses:          jlumbroso/free-disk-space@v1.3.1
       - name:          checkout repo
         uses:          actions/checkout@v3.0.0
         with:
           fetch-depth: 1
-
       - name:          check docs build
         run:           make docs
diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 24d1e372..8d46baaa 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -8,14 +8,13 @@ on:
 
 jobs:
   run_tests:
-
     runs-on:           ubuntu-latest
-
     steps:
+      # - name:          free disk space
+      #   uses:          jlumbroso/free-disk-space@v1.3.1
       - name:          checkout repo
         uses:          actions/checkout@v3.0.0
         with:
           fetch-depth: 1
-
       - name:          run tests
         run:           sudo apt-get -y install graphviz && make pytest
diff --git a/.github/workflows/ruff.yml b/.github/workflows/ruff.yml
index 22832bc2..c61812fa 100644
--- a/.github/workflows/ruff.yml
+++ b/.github/workflows/ruff.yml
@@ -8,14 +8,13 @@ on:
 
 jobs:
   run_tests:
-
     runs-on:           ubuntu-latest
-
     steps:
+      # - name:          free disk space
+      #   uses:          jlumbroso/free-disk-space@v1.3.1
       - name:          checkout repo
         uses:          actions/checkout@v3.0.0
         with:
           fetch-depth: 1
-
       - name:          run linter
         run:           make ruff
diff --git a/.github/workflows/space.yml b/.github/workflows/space.yml
deleted file mode 100644
index 6fa6b049..00000000
--- a/.github/workflows/space.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-name:                  Test clear space then build
-
-on:
-  push:
-    branches:          [main]
-  pull_request:
-    branches:          [main]
-
-jobs:
-  run_tests:
-
-    runs-on:           ubuntu-latest
-
-    steps:
-      - name:          clear disk space
-        uses:          jlumbroso/free-disk-space@v1.3.1
-
-      - name:          checkout repo
-        uses:          actions/checkout@v3.0.0
-        with:
-          fetch-depth: 1
-
-      - name:          build package
-        run:           make env