diff --git a/.github/workflows/m1_ci.yml b/.github/workflows/m1_ci.yml
index db5deac5..7560517d 100644
--- a/.github/workflows/m1_ci.yml
+++ b/.github/workflows/m1_ci.yml
@@ -9,6 +9,7 @@ on:
   - push
 jobs:
   aarch64-macos:
+    if: github.repository == 'hexops/mach'
     runs-on: [self-hosted, macOS, ARM64]
     strategy:
       matrix:
diff --git a/glfw/.github/workflows/m1_ci.yml b/glfw/.github/workflows/m1_ci.yml
index e0ae2f98..0ef942ad 100644
--- a/glfw/.github/workflows/m1_ci.yml
+++ b/glfw/.github/workflows/m1_ci.yml
@@ -9,6 +9,7 @@ on:
   - push
 jobs:
   aarch64-macos:
+    if: github.repository == 'hexops/mach-glfw'
     runs-on: [self-hosted, macOS, ARM64]
     defaults:
       run:
diff --git a/gpu-dawn/.github/workflows/m1_ci.yml b/gpu-dawn/.github/workflows/m1_ci.yml
index 6d5be3be..a0086e6c 100644
--- a/gpu-dawn/.github/workflows/m1_ci.yml
+++ b/gpu-dawn/.github/workflows/m1_ci.yml
@@ -7,6 +7,7 @@ on:
 jobs:
   aarch64-macos:
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    if: github.repository == 'hexops/mach-gpu-dawn'
     runs-on: [self-hosted, macOS, ARM64]
     defaults:
       run: