diff --git a/.github/actions/main-setup/action.yaml b/.github/actions/main-setup/action.yaml
index 0e20fc3f3..7a9540c03 100644
--- a/.github/actions/main-setup/action.yaml
+++ b/.github/actions/main-setup/action.yaml
@@ -9,7 +9,8 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Update and install gcc-10 & g++-10
+    - if: ${{ runner.os == 'Linux' }}
+      name: Update and install gcc-10 & g++-10
       shell: bash
       run: |
         sudo apt update
diff --git a/.github/workflows/build-simulators.yaml b/.github/workflows/build-simulators.yaml
index 33e13fa9b..9b0902909 100644
--- a/.github/workflows/build-simulators.yaml
+++ b/.github/workflows/build-simulators.yaml
@@ -21,14 +21,14 @@ jobs:
         os: ["ubuntu-latest", "macOS-latest", "windows-latest"]
         target: [
           bootloader,
-          gantry-x,
-          gantry-y,
-          gripper,
-          head,
-          hepa-uv,
-          pipettes-single,
-          pipettes-multi,
-          pipettes-96,
+#          gantry-x,
+#          gantry-y,
+#          gripper,
+#          head,
+#          hepa-uv,
+#          pipettes-single,
+#          pipettes-multi,
+#          pipettes-96,
         ]
     name: ${{ matrix.target }} simulator
     runs-on: ${{ matrix.os }}