diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 40699986..076ec499 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,16 +7,22 @@ jobs:
   test:
     strategy:
       matrix:
-        os: ['ubuntu']
+        os: ['ubuntu', 'windows']
         pyver: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        exclude:
+          - os: 'windows'
+            pyver: '3.8'
+          - os: 'windows'
+            pyver: '3.9'
+          - os: 'windows'
+            pyver: '3.10'
+          - os: 'windows'
+            pyver: '3.11'
     runs-on: ${{ matrix.os }}-latest
     name: ${{ matrix.os }} | ${{ matrix.pyver }}
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
-      with:
-        submodules: true
-        fetch-depth: 0
     - name: Set up Python ${{ matrix.pyver }}
       uses: actions/setup-python@v5
       with:
@@ -24,4 +30,6 @@ jobs:
     - name: Install dependencies
       run: pip install . && pip install pytest
     - name: Run tests
-      run: source tests/mocks/source-me.sh && make test
+      run: |
+        make test
+        cd examples/projects && bash regress.sh --notool
diff --git a/examples/projects/diamond.py b/examples/projects/diamond.py
index 0128d7c3..464be7ff 100644
--- a/examples/projects/diamond.py
+++ b/examples/projects/diamond.py
@@ -15,6 +15,9 @@
 parser.add_argument(
     '--action', choices=['make', 'prog', 'all'], default='make'
 )
+parser.add_argument(
+    '--notool', action='store_true'
+)
 args = parser.parse_args()
 
 prj = Diamond(odir=f'results/diamond/{args.source}/{args.board}')
@@ -43,8 +46,11 @@
 
 prj.set_top('Top')
 
-if args.action in ['make', 'all']:
-    prj.make()
-
-if args.action in ['prog', 'all']:
-    prj.prog()
+try:
+    if args.action in ['make', 'all']:
+        prj.make()
+    if args.action in ['prog', 'all']:
+        prj.prog()
+except RuntimeError:
+    if not args.notool:
+        raise
diff --git a/examples/projects/ise.py b/examples/projects/ise.py
index 279a5db0..1955d34d 100644
--- a/examples/projects/ise.py
+++ b/examples/projects/ise.py
@@ -15,6 +15,9 @@
 parser.add_argument(
     '--action', choices=['make', 'prog', 'all'], default='make'
 )
+parser.add_argument(
+    '--notool', action='store_true'
+)
 args = parser.parse_args()
 
 prj = Ise(odir=f'results/ise/{args.source}/{args.board}')
@@ -45,8 +48,11 @@
 
 prj.set_top('Top')
 
-if args.action in ['make', 'all']:
-    prj.make()
-
-if args.action in ['prog', 'all']:
-    prj.prog()
+try:
+    if args.action in ['make', 'all']:
+        prj.make()
+    if args.action in ['prog', 'all']:
+        prj.prog()
+except RuntimeError:
+    if not args.notool:
+        raise
diff --git a/examples/projects/libero.py b/examples/projects/libero.py
index dd2c5861..8bb94b7a 100644
--- a/examples/projects/libero.py
+++ b/examples/projects/libero.py
@@ -14,6 +14,9 @@
 parser.add_argument(
     '--action', choices=['make', 'prog', 'all'], default='make'
 )
+parser.add_argument(
+    '--notool', action='store_true'
+)
 args = parser.parse_args()
 
 prj = Libero(odir=f'results/libero/{args.source}/{args.board}')
@@ -43,8 +46,11 @@
 
 prj.set_top('Top')
 
-if args.action in ['make', 'all']:
-    prj.make()
-
-if args.action in ['prog', 'all']:
-    prj.prog()
+try:
+    if args.action in ['make', 'all']:
+        prj.make()
+    if args.action in ['prog', 'all']:
+        prj.prog()
+except RuntimeError:
+    if not args.notool:
+        raise
diff --git a/examples/projects/openflow.py b/examples/projects/openflow.py
index 56a6b2ab..98e2e999 100644
--- a/examples/projects/openflow.py
+++ b/examples/projects/openflow.py
@@ -16,6 +16,9 @@
 parser.add_argument(
     '--action', choices=['make', 'prog', 'all'], default='make'
 )
+parser.add_argument(
+    '--notool', action='store_true'
+)
 args = parser.parse_args()
 
 prj = Openflow(odir=f'results/openflow/{args.source}/{args.board}')
@@ -59,8 +62,11 @@
 
 prj.set_top('Top')
 
-if args.action in ['make', 'all']:
-    prj.make()
-
-if args.action in ['prog', 'all']:
-    prj.prog()
+try:
+    if args.action in ['make', 'all']:
+        prj.make()
+    if args.action in ['prog', 'all']:
+        prj.prog()
+except RuntimeError:
+    if not args.notool:
+        raise
diff --git a/examples/projects/quartus.py b/examples/projects/quartus.py
index eb7e889e..258fa8e6 100644
--- a/examples/projects/quartus.py
+++ b/examples/projects/quartus.py
@@ -15,6 +15,9 @@
 parser.add_argument(
     '--action', choices=['make', 'prog', 'all'], default='make'
 )
+parser.add_argument(
+    '--notool', action='store_true'
+)
 args = parser.parse_args()
 
 prj = Quartus(odir=f'results/quartus/{args.source}/{args.board}')
@@ -44,8 +47,11 @@
 
 prj.set_top('Top')
 
-if args.action in ['make', 'all']:
-    prj.make()
-
-if args.action in ['prog', 'all']:
-    prj.prog()
+try:
+    if args.action in ['make', 'all']:
+        prj.make()
+    if args.action in ['prog', 'all']:
+        prj.prog()
+except RuntimeError:
+    if not args.notool:
+        raise
diff --git a/examples/projects/regress.sh b/examples/projects/regress.sh
index 45b7d848..a260b52e 100644
--- a/examples/projects/regress.sh
+++ b/examples/projects/regress.sh
@@ -13,7 +13,24 @@ TOOLS["vivado"]="zybo arty"
 
 SOURCES=("vlog" "vhdl" "slog")
 
-SPECIFIED_TOOL=$1
+SPECIFIED_TOOL=""
+NOTOOL=false
+while [[ "$#" -gt 0 ]]; do
+  case $1 in
+    --tool)
+      SPECIFIED_TOOL="$2"
+      shift 2
+      ;;
+    --notool)
+      NOTOOL=true
+      shift
+      ;;
+    *)
+      echo "Invalid option: $1"
+      exit 1
+      ;;
+  esac
+done
 
 for TOOL in "${!TOOLS[@]}"; do
   if [[ -n "$SPECIFIED_TOOL" && "$TOOL" != "$SPECIFIED_TOOL" ]]; then
@@ -26,7 +43,11 @@ for TOOL in "${!TOOLS[@]}"; do
         continue
       fi
       echo "> $TOOL - $BOARD - $SOURCE"
-      python3 $TOOL.py --board $BOARD --source $SOURCE
+      if [[ "$NOTOOL" == true ]]; then
+        python3 $TOOL.py --board $BOARD --source $SOURCE --notool
+      else
+        python3 $TOOL.py --board $BOARD --source $SOURCE
+      fi
     done
   done
 done
diff --git a/examples/projects/vivado.py b/examples/projects/vivado.py
index af497b91..33fba3f3 100644
--- a/examples/projects/vivado.py
+++ b/examples/projects/vivado.py
@@ -15,6 +15,9 @@
 parser.add_argument(
     '--action', choices=['make', 'prog', 'all'], default='make'
 )
+parser.add_argument(
+    '--notool', action='store_true'
+)
 args = parser.parse_args()
 
 prj = Vivado(odir=f'results/vivado/{args.source}/{args.board}')
@@ -50,8 +53,11 @@
 
 prj.set_top('Top')
 
-if args.action in ['make', 'all']:
-    prj.make()
-
-if args.action in ['prog', 'all']:
-    prj.prog()
+try:
+    if args.action in ['make', 'all']:
+        prj.make()
+    if args.action in ['prog', 'all']:
+        prj.prog()
+except RuntimeError:
+    if not args.notool:
+        raise
diff --git a/tests/test_tools.py b/tests/test_tools.py
index ad28632a..98f00055 100644
--- a/tests/test_tools.py
+++ b/tests/test_tools.py
@@ -85,9 +85,9 @@ def generate(tool, part):
     prj.add_hook('postbit', 'HOOK16')
     try:
         prj.make()
-    except Exception:
+    except RuntimeError:
         pass
     try:
         prj.prog()
-    except Exception:
+    except RuntimeError:
         pass